Welcome to WEE

WEET Switching Diode 1N4148 LL4148 1N4148W 1N4148WS 1N4148WT

    WEE Technology Company Limited 

    Manufacturer of Surface Mount (SMD) and Through Hole (DIP) Diodes & Rectifiers


    WEE Technology Silicon epitaxial planar diode / fast switching diodes are AEC-Q101 qualified available


    1N4148 is a small high-speed switching diode. The switch is relatively fast. It is widely used in circuit with high signal frequency for one-way conduction isolation, communication, computer board, TV circuit and industrial control circuit.


    1N4148 is a very versatile high-frequency switching diode. Including DO35, LL34, SOD323, SOT23, 0805 packages.


    WEET 1N4148 fast switching diodes

    Pacakge:DO-34, DO-35 


    WEET LL4148 Diode type small signal

    Pacakge:MiniMELF SOD80


    WEET 1N4148W Silicon Epitaxial Planar Switching Diode 

    Pacakge:SOD-123


    WEET 1N4148WS Silicon Epitaxial Planar Switching Diode 

    Pacakge:SOD-323


    WEET 1N4148WT Silicon Epitaxial Planar Switching Diode 

    Pacakge:SOD-523

Publish: 2019/10/8 Category: Switching Diodes  Read: Times Comment: 0Times

WEET 1N4148 LL4148 Series SMD/SMT Diodes - General Purpose, Power, Switching Diodes are Available at

    WEE Technology Company Limited

    Manufacturer of Surface Mount (SMD) and Through Hole (DIP) Diodes & Rectifiers


    1N indicates that the device has a 1 PN junction. Similarly, American type diodes all start at 2N because they have two PN junctions. 


    Usually this product starts with several PN series and is developed in the United States. 4148 is just something like a serial number, and its number has no practical significance. LL4148 is a SMD version of 1N4148, Don't know exactly what LL means.


    LL4148 usually refers to the glass-sealed cylinder LL-34 package (SMD Type, pinless).

    1N4148 usually refers to DO-35 glass seal, axial pin, plug-in. It can be taped or packed in bulk.


    1N4148 is a small high speed switching diode. The switch is relatively fast. It is widely used in circuit with high signal frequency for one-way conduction isolation, communication, computer board, TV circuit and industrial control circuit.

    All of them are fast switching diodes, but they are packaged differently in order to suit for various PCB soldering patterns.


    1N4148 is DO-35 plug-in through hole package, LL4148 is miniMELF chip SMD package, the two can be completely used alternately under low operating current.




Publish: 2019/10/4 Category: Switching Diodes  Read: Times Comment: 0Times

WEET Tells You What is The Difference Between LL-34 and LL-41 Package

    WEE Technology Company Limited 

    Manufacturer of Surface Mount (SMD) and Through Hole (DIP) Diodes & Rectifiers    


    Zener Diodes BZV55C2V4 - BZV55C75V LL-34(Glass Case MiniMELF), Power Disspation 0.5W, forward voltage at 1F = 100mA 0.9V

    Silicon Epitaxial Planar Zener Diodes ZMM1-ZMM75 LL-34(Glass Case MiniMELF), Power Disspation 0.5W, forward voltage at 1F = 100mA 1.0V

    Silicon Planar Power Zener Diodes ZM4728-ZM4761,LL-41(Glass Case MELF), Power Disspation 1W, forward voltage at 1F = 200mA 1.2V


    What is the difference between LL-34 and LL-41 package, please see below size table for reference, please check WEET datasheet before ordering

    Dimention(mm)LL-34LL-41
    MinMaxMinMax
    A: Length3.33.54.85.2
    B: Diameter1.3971.4992.42.7
    C: Terminal0.350.50.40.6



Publish: 2019/9/30 Category: Zener Diodes Read: Times Comment: 0Times

WEET DO-41 Glass Package Silicon Epitaxial Planar Switching Diode 1N4727A - 1N4761A

    WEE Technology Company Limited 

    Manufacturer of Surface Mount (SMD) and Through Hole (DIP) Diodes & Rectifiers


    1W 3V to 75V ±5% ( DO-204AL) DO-41 2-Pin Glass through-hole body style Package Silicon Epitaxial Planar Switching Diode 1N4727A - 1N4761A

    For use in stabilizing and clipping circuits with high power rating


    WEE Technology Part Number
    1N4727A1N4734A1N4741A1N4748A1N4755A
    1N4728A1N4735A1N4742A1N4749A1N4756A
    1N4729A1N4736A1N4743A1N4750A1N4757A
    1N4730A1N4737A1N4744A1N4751A1N4758A
    1N4731A1N4738A1N4745A1N4752A1N4759A
    1N4732A1N4739A1N4746A1N4753A1N4760A
    1N4733A1N4740A1N4747A1N4754A1N4761A


Publish: 2019/9/25 Category: Switching Diodes  Read: Times Comment: 0Times

WEET Zener Diodes Packing Information for MELF,MiniMELF,QuadroMELF, MicroMELF

    WEE Technology Company Limited 

    Manufacturer of Surface Mount (SMD) and Through Hole (DIP) Diodes & Rectifiers


    MELF(LL-41 / DO-213AB),  5,000pcs/Reel , Reel Ø. 330 mm. 

    MiniMELF(LL-34 / DO-213AA),  2,500/Reel / 10,000/Reel ,  Reel Ø. 178 mm / 330 mm. 

    QuadroMELF(LS-34),  2,500/Reel / 10,000/Reel ,  Reel Ø. 178 mm / 330 mm. 

    MicroMELF(LS-31),  2,500/Reel / 10,000/Reel ,  Reel Ø. 178 mm / 330 mm. 


    BTZS4684LS-34 BZT52C10LL-34 ZM1.3C10LL-41 
    BTZS4689LS-34 BZT52C11LL-34 ZM1.3C11LL-41 
    BTZS4690LS-34 BZT52C12LL-34 ZM1.3C12LL-41 
    BTZS4691LS-34 BZT52C13LL-34 ZM1.3C13LL-41 
    BTZS4692LS-34 BZT52C15LL-34 ZM1.3C15LL-41 
    BTZS4693LS-34 BZT52C16LL-34 ZM1.3C16LL-41 
    BTZS4694LS-34 BZT52C18LL-34 ZM1.3C18LL-41 
    BTZS4696LS-34 BZT52C20LL-34 ZM1.3C20LL-41 
    BTZS4697LS-34 BZT52C22LL-34 ZM1.3C22LL-41 
    BTZS4698LS-34 BZT52C24LL-34 ZM1.3C24LL-41 
    BTZS4699LS-34 BZT52C27LL-34 ZM1.3C27LL-41 
    BTZS4700LS-34 BZT52C2V4LL-34 ZM1.3C2V7LL-41 
    BTZS4702LS-34 BZT52C2V7LL-34 ZM1.3C30LL-41 
    BTZS4703LS-34 BZT52C30LL-34 ZM1.3C33LL-41 
    BTZS4704LS-34 BZT52C33LL-34 ZM1.3C36LL-41 


        

Publish: 2019/9/10 Category: Zener Diodes Read: Times Comment: 0Times

WEET High Speed SMD Switching Diode SOD-123 SOD-323 SOD-523 1N4148W 1N4148WS 1N4148WT

    WEE Technology Company Limited 

    Manufacturer of Surface Mount (SMD) and Through Hole (DIP) Diodes & Rectifiers


    WEET High Speed SMD Switching Diode 1N4148W, 1N4148WS, 1N4148WT


    These diodes are also available in other case style including the DO-35 case with type designation 1N4148, the Mini MELF case with the type designation LL4148 and the Micro MELF case with the type designation MCL4148.


    WEET strong small Diodes Pakcage: DO-35/LL-34/SOD-123/SOD-323/SOD-523/SOT-23


    Marking W2 / T4 for SMD Diode 1N4148WS, Marking W1 for SMD Diode 1N4148W, Marking .A for SMD Diode 1N4148WT

    For 1N4148W our database currently has 3224 SMD marking codes of bipolar transistors (BJT),


Publish: 2019/9/3 Category: Switching Diodes  Read: Times Comment: 0Times

WEET Shares The Difference Between Switching Diode 1N4148, LL4148 and Zener Diodes BZV55C Series

    WEE Technology Company Limited 

    Manufacturer of Surface Mount (SMD) and Through Hole (DIP) Diodes & Rectifiers


    WEET 1N4148, LL4148 and Zener Diodes BZV55C Packing:

    1N4148 usually refers to DO-35 glass seal, axial pin, through hole type. It can be taped in ammo or packed in bulk.

    LL4148 and BZV55C are surface mount SMD type, only available in tape and reel packing. 7 inch and 13 inch paper or plastic tape for choose.


    WEET 1N4148, LL4148 and Zener Diodes BZV55C Package:

    LL4148 usually refers to the glass-sealed cylinder LL-34 package (patch, pinless). 

    LL4148 is a surface mount SMD type, as well las BZV55C. But BZV55C with blue ink indentification and LL4148 with black ink indentification


    WEET 1N4148, LL4148 and Zener Diodes BZV55C Marking:

    1N4148 usally will mark the part number on the glass surface, but LL4148 and Zener Diodes BZV55C does not.


    WEET 1N4148, LL4148 and Zener Diodes BZV55C Total power dissipation: Max.500mW

    BZV55C Two tolerance series: ± 2% and approx. ± 5% 

    Standard tolerance approx. ±5% (refer to "zener voltage range") ; ±2% tolerance available on request.


    https://www.weetcl.com/High_Speed_Switching_Diodes/DO35_1N4148.html

    https://www.weetcl.com/High_Speed_Switching_Diodes/LL34_LL4148.html

    https://www.weetcl.com/Silicon_Planar_Zener_Diodes/LL34_BZV55C2V4_THRU_BZV55C75.html


Publish: 2019/8/26 Category: Zener Diodes Read: Times Comment: 0Times

WEET Samll Signal Fast Switching Diode 500mW LL4148 MiniMELF SOD-80 LL-34 Glass Case

    WEE Technology Company Limited

    Manufacturer of Surface Mount (SMD) and Through Hole (DIP) Diodes & Rectifiers


    WEET 500mW LL4148 Diode Description

    A diode is a device which allows current flow through only one direction. That is the current should always flow from the anode to the cathode. LL4148 is a Silicon Epitaxial planar diode with an identification of cathode band(which is easy to indentify by the blacking ring mark from the filler in the glass package), comes in glass package version. It has high conductance and high reliability. The specialty of this diode is its fast recovery time of 8ns to 4ns only at a forward current of 300mA, hence this diode is used in places where extremely fast switching is involved. The main use of this diode is for extreme fast switches. LL4148 is used in various projects like heat monitoring, detecting the state of LED to control another circuit and many other electronic circuits


    WEET Fast Switching Speed Diode LL4148 Features

    Glass package version for high reliability

    Available in both Through-hole and Surface mount versions

    Conductance is also high

    Silicon epitaxial planar diode

    RoHS and REACH compliant

    Electrical data identical with the devices 1N4148 and 1N4448 respectively

    MiniMELF SOD-80 LL-34 Glass Case 

    Anode,Current always Enters through Anode

    Cathode,Current always Exits through Cathode

    The black is the color ring, the main ingredients are  ink

    The red one is Dumex, a kind of alloy material.


    WEET Samll Signal Fast Switching Diode 500mW LL4148 Applications

    Extreme fast switches

    Can be used to prevent reverse polarity problem

    Protect Power electronic switches that are operating with high switching frequency.

    Used as a protection device

    Current flow regulators

Publish: 2019/8/20 Category: Zener Diodes Read: Times Comment: 0Times

WEET Bridge Rectifiers UL Qualified RoSH and Reach Compliant Cross Reference to YangJie and Diodes

    WEE Technology Company Limited
    Manufacturer of Surface Mount (SMD) and Through Hole (DIP) Diodes & Rectifiers


    WEE Technology is strong at all kinds of bridge rectifiers. Below are two of our strong types, welcome your enquiry. We are ready to cost down for you. WEE has specialized in producing bridge rectifiers for more than 20 years, usually we will use large chip than most of Chinese factories to make sure the top quality of the products. All of our bridge rectifiers are UL qualified, RoSH and Reach compliant.



    CurrentWEET Bridge Rectifiers Type NumberPackagePackingMPQ
    4AKBJ4005, KBJ401, KBJ402, KBJ404, KBJ406, KBJ408, KBJ410KBJ4(3S)Bulk0.3K
    6AKBJ6005, KBJ601, KBJ602, KBJ604, KBJ606, KBJ608, KBJ610KBJ4(3S)Bulk0.3K
    8AKBJ8005, KBJ801, KBJ802, KBJ804, KBJ806, KBJ808, KBJ810KBJ4(3S)Bulk0.3K
    10AKBJ10005, KBJ1001, KBJ1002, KBJ1004, KBJ1006, KBJ1008, KBJ1010KBJ4(3S)Bulk0.3K
    6AGBJ6005,GBJ601, GBJ602, GBJ604, GBJ606, GBJ608, GBJ610KBJ6(5S)Bulk0.3K
    8AGBJ8005,GBJ801, GBJ802, GBJ804, GBJ806, GBJ808, GBJ810KBJ6(5S)Bulk0.3K
    10AGBJ10005,GBJ1001, GBJ1002, GBJ1004, GBJ1006, GBJ1008, GBJ1010KBJ6(5S)Bulk0.3K
    15AGBJ15005,GBJ1501, GBJ1502, GBJ1504, GBJ1506, GBJ1508, GBJ1510KBJ6(5S)Bulk0.3K
    20AGBJ2005,GBJ2001, GBJ2002, GBJ12004, GBJ12006, GBJ2008, GBJ2010KBJ6(5S)Bulk0.3K




Publish: 2019/8/12 Category: Bridge Rectifiers Read: Times Comment: 0Times

WEET Surface Mount Rectifier SM4007 LL4007G Melf (DO213AB) 1A 1000V GPP Diodes

    WEE Technology Company Limited 

    Manufacturer of Surface Mount (SMD) and Through Hole (DIP) Diodes & Rectifiers


    What is the difference between MELF and MiniMELF?

    Mini-MELF (SOD-80, DO-213AA,LL-34), smaller size

    MELF (DO-213AB), larger size

    MELF (Metal Electrode Leadless Face) packages held popularity because of their typically higher operating temperatures, reliability, and accuracy

    MELF General Purpose Rectifiers SM4007 Surface Mount Glass Passivated Silicon Rectifier (Voltage Range 50 to 1000 Volts Current 1.0 Ampere)


    https://www.weetcl.com/pdf/WEET_Melf_SM4001_THRU_SM4007.PDF



Publish: 2019/8/8 Category: Schottey Barrier Rectifiers Read: Times Comment: 0Times

WEET TVS Diode SMDJ Series Bidirectional Surface Mount 3000W DO-214AB SMC Package

    WEE Technology Company Limited 

    Manufacturer of Surface Mount (SMD) and Through Hole (DIP) Diodes & Rectifiers


    • For surface mounted applications in order to optimize board space

    • Low profile package

    • Built-in strain relief

    • Glass passivated junction

    • Low inductance

    • Excellent clamping capability

    • Repetition rate (duty cycle):0.01%

    • Fast response time: typically less than 1.0 ps from 0 volts to BV for unidirectional types

    • Typical IR less than 1µA above 10V

    • High temperature soldering: 260°C/10 seconds at terminals

    • Plastic package has Underwriters Laboratory Flammability Classification 94 V-O

    • Case: JEDEC DO214AB. Molded plastic over glass passivated junction

    • Terminals: Solder plated, solderable per MIL-STD-750, Method 2026

    • Polarity: Color band denoted positive end (cathode)except Bidirectional


    WEET Part Number Add C For Bi-Directional
    SMDJ5.0(C)ASMDJ22(C)ASMDJ85(C)A
    SMDJ6.0(C)ASMDJ24(C)ASMDJ90(C)A
    SMDJ6.5(C)ASMDJ26(C)ASMDJ100(C)A
    SMDJ7.0(C)ASMDJ28(C)ASMDJ110(C)A
    SMDJ7.5(C)ASMDJ30(C)ASMDJ120(C)A
    SMDJ8.0(C)ASMDJ33(C)ASMDJ130(C)A
    SMDJ8.5(C)ASMDJ36(C)ASMDJ150(C)A
    SMDJ9.0(C)ASMDJ40(C)ASMDJ160(C)A
    SMDJ10(C)ASMDJ43(C)ASMDJ170(C)A
    SMDJ11(C)ASMDJ45(C)ASMDJ180(C)A
    SMDJ12(C)ASMDJ48(C)ASMDJ190(C)A
    SMDJ13(C)ASMDJ54(C)ASMDJ200(C)A
    SMDJ14(C)ASMDJ58(C)ASMDJ220(C)A
    SMDJ15(C)ASMDJ60(C)ASMDJ250(C)A
    SMDJ16(C)ASMDJ64(C)ASMDJ300(C)A
    SMDJ17(C)ASMDJ70(C)ASMDJ350(C)A
    SMDJ18(C)ASMDJ75(C)ASMDJ400(C)A
    SMDJ20(C)ASMDJ78(C)ASMDJ440(C)A


Publish: 2019/8/5 Category: Transient Voltage Suppressors Read: Times Comment: 0Times

WEET Shares With You The Difference Between Frame Structure And Flattened Structure Diodes' Outline

    WEE Technology Company Limited 

    Manufacturer of Surface Mount (SMD) and Through Hole (DIP) Diodes & Rectifiers


    WEET Shares With You The Difference Between Frame Structure And Flattened Structure Diodes' Outline 

    The biggiest difference is the terminal shape, which is easy to identify.

    Frame Structure Diodes' Outline : SMA, SMB,SMC

    Flattened Structure Diodes' Outline: SMA-J, SMB-J


Publish: 2019/7/24 Category: About WEE Technology Read: Times Comment: 0Times

WEET Small Signal Transistors SOT-23, SOT-323 Marking Code Reference

    WEE Technology Company Limited 

    Manufacturer of Surface Mount (SMD) and Through Hole (DIP) Diodes & Rectifiers


    WEET Small Signal Transistors SOT-23, SOT-323 Marking Code Reference


    WEET 

    TYPE   NO.

    POLARITYMarking Code   Package

    WEET

     TYPE NO.

    POLARITYMarking Code   Package
    S9012PNP2T1 SOT-23BC848ANPN1JSOT23
    S9013NPNJ3 SOT-23BC848BNPN1KSOT23
    S9014NPNJ6SOT-23BC848CNPN1LSOT23
    S9015PNPM6 SOT-23BC849CNPN49CSOT-23
    S8050-LNPNJ3Y ·LSOT-23BC856APNP3ASOT-23
    S8050-HNPNJ3YSOT-23BC856BPNP3BSOT-23
    S8550-LPNP2TY ·LSOT-23BC857APNP3ESOT23
    S8550-HPNP2TY SOT-23BC857BPNP3FSOT23
    SS8050-LNPNY1 ·LSOT-23BC857CPNP3GSOT23
    SS8050-HNPNY1 SOT-23BC858APNP3JSOT-23
    SS8550-LPNPY2 ·LSOT-23BC858BPNP3KSOT-23
    SS8550-HPNPY2SOT-23BC858CPNP3LSOT-23
    MMBT2222ANPN1PSOT-23MMST3904NPNK2NSOT-323
    MMBT2907A PNP2F SOT-23MMST3906
       
    PNPK5NSOT-323
    MMBT3904NPN1AMSOT-23MMST2222ANPNK3PSOT323
    MMBT3906PNP2ASOT-23BC807-16WPNP5ASOT323
    MMBT4401NPN2XSOT-23BC807-25WPNP5BSOT323
    MMBT4403PNP2TSOT-23BC807-40WPNP5CSOT323
    MMBT5401PNP2LSOT-23BC817-16WNPN6ASOT323
    MMBT5551NPNG1SOT-23BC817-25WNPN6BSOT323
    MMBTA05NPN1HSOT-23BC817-40WNPN6CSOT323
    MMBTA06NPN1GMSOT-23BC846AWNPN1ASOT323
    MMBTA42NPN1DSOT-23BC846BWNPN1BSOT323
    MMBTA55PNP2HSOT-23BC847AW NPN1ESOT323
    MMBTA56PNP2GMSOT-23BC847BW NPN1FSOT323
    MMBTA92PNP2DSOT-23BC847CW NPN1GSOT323
    MMBTA44NPN3DSOT-23BC848AW NPN1JSOT323
    BC807-16PNP5ASOT-23BC848BW NPN1KSOT323
    BC807-25PNP5BSOT-23BC848CW NPN1LSOT323
    BC807-40PNP5CSOT-23 BC856AWPNP3ASOT323
    BC817-16NPN6ASOT-23 BC856BWPNP3BSOT323
    BC817-25NPN6BSOT-23BC857AW PNP3ESOT323
    BC817-40 NPN6C SOT-23BC857BW PNP3FSOT323
    BC846ANPN1ASOT23BC857CW PNP3GSOT323
    BC846BNPN1BSOT23BC858AWPNP3JSOT323
    BC847ANPN1ESOT23BC858BWPNP3KSOT323
    BC847BNPN1FSOT23BC858CWPNP3LSOT323
    BC847CNPN1GSOT23





Publish: 2019/7/12 Category: Small Signal Transistors Read: Times Comment: 0Times

WEET Full Range of Bridge Rectifiers From 0.5A to 50A Between 50V and 1000V

    WEE Technology Company Limited

    Manufacturer of Surface Mount (SMD) and Through Hole (DIP) Diodes & Rectifiers


    WEET has two factories. One is focus on diodes, the other is specialized in bridge rectifiers.  Both the two factories are manufacturing GPP chips ourselves. This is the main reason why our price and quality are always favorable and competitive in the market.


    Please check below common big size bridge rectifiers list, out output for these itmes are about 300KKpcs per month. Welcome  your enquiry, thank you.


    WEE-Technology WEET TypePackagePackingMPQCurrent
    KBP2005-KBP206KBPBulk0.5K2A
    KBP208-KBP210KBPbulk0.5K2A
    KBP3005-KBP306KBPbulk0.5K3A
    KBP308-KBP310KBPbulk0.5K3A
    GBP2005-GBP210GBPbulk0.5K2A
    GBP3005-GBP310GBPbulk0.5K3A
    KBL401-KBL406KBLbulk0.5K4A
    KBL408-KBL410KBLbulk0.5K4A
    KBL601-KBL608KBLbulk0.5K6A
    KBL610KBLbulk0.5K6A
    KBU4005-KBU406KBUbulk0.4K4A
    KBU408-KBU410KBUbulk0.4K4A
    KBU6005-KBU606KBUbulk0.4K6A
    KBU608-KBU610KBUbulk0.4K6A
    KBU8005-KBU806KBUbulk0.4K8A
    KBU808-KBU810KBUbulk0.4K8A
    KBU10005-KBU1006 KBUbulk0.4K10A
    KBU1008-KBU1010 KBUbulk0.4K10A
    KBU15005-KBU1506KBUbulk0.4K15A
    KBU1508-KBU1510KBUbulk0.4K15A
    GBU4005-GBU406GBUbulk0.25K4A
    GBU408-GBU410GBUbulk0.25K4A
    GBU6005-GBU606GBUbulk0.25K6A
    GBU608-GBU610GBUbulk0.25K6A
    GBU8005-GBU806GBUbulk0.25K8A
    GBU808-GBU810GBUbulk0.25K8A
    GBU10005-GBU1006GBUbulk0.25K10A
    GBU1008-GBU1010GBUbulk0.25K10A
    GBU15005-GBU1510GBUbulk0.25K15A
    GBU20005-GBU2010GBUbulk0.25K20A
    GBU25005-GBU2510GBUbulk0.25K25A

    https://www.weetcl.com/Single_Phase_Bridge_Rectifiers/



Publish: 2019/7/9 Category: Bridge Rectifiers Read: Times Comment: 0Times

WEET SOT-23 Small Signal Transistors Application Guidance and Cross Reference

    WEE Technology Company Limited
    Manufacturer of Surface Mount (SMD) and Through Hole (DIP) Diodes & Rectifiers


    Small signal transistors(BJT) are usually widely used in all segments and for several applications in almost all equipment.

    On/ off switches for general use

    Bias supply circuits LED diode driver

    Infrared diode amplifier

    Relay driver

    Timer circuits

    Audio mute function

    High voltage ‘A’ class preamplifier 

    RGB coils driver and Scavem circuits

    Telecom wireline interface circuits



    Industry StandardWEET  NearestWEET  ReplacementIndustry   StandardWEET  NearestWEET  ReplacementIndustry   StandardWEET  NearestWEET  Replacement
    BC560BBC557B
    BC850B
    BC847BBC328
    BC327-25
    BC560CBC557B
    BC850C
    BC847CBC328-16
    BC327-25
    BC807BC807-25
    BC850W
    BC847BWBC328-25
    BC327-25
    BC807-16BC807-25
    BC850BW
    BC847BWBC328-40
    BC327-40
    BC807-25
    BC807-25BC850CW
    BC847CWBC337
    BC337-25
    BC807-40
    BC807-40BC857
    BC857BBC337ABC337-25
    BC807WSO2907AW
    BC857ABC857B
    BC337-16
    BC337-25
    BC807-16WSO2907AW
    BC857B
    BC857BBC337-25
    BC337-25
    BC807-25WSO2907AW
    BC857CBC857B
    BC337-40
    BC337-40
    BC807-40WSO2907AW
    BC857W
    BC857BWBC338
    BC337-25
    BC808BC807-25
    BC857AWBC857BW
    BC338-16
    BC337-25
    BC808-16BC807-25
    BC857BW
    BC857BWBC338-25
    BC337-25
    BC808-25
    BC807-25BC857CWBC857BW
    BC338-40
    BC337-40
    BC808-40
    BC807-40BC858
    BC857BBC547
    BC547B
    BC808WSO2907AW
    BC858ABC857B
    BC547ABC547B
    BC808-16WSO2907AW
    BC858B
    BC857BBC547B
    BC547B
    BC808-25WSO2907AW
    BC858CBC857B
    BC547C
    BC547C
    BC808-40WSO2907AW
    BC858W
    BC857BWBC548
    BC547B
    BC817BC817-25
    BC858AWBC857BW
    BC548ABC547B
    BC817-16BC817-25
    BC858BW
    BC857BWBC548B
    BC547B
    BC817-25
    BC817-25BC858CWBC857BW
    BC548C
    BC547C
    BC817-40
    BC817-40BC859
    BC857BBC549
    BC547B
    BC817WSO2222AW
    BC859ABC857B
    BC549B
    BC547B
    BC817-16WSO2222AW
    BC859B
    BC857BBC549C
    BC547C
    BC817-25WSO2222AW
    BC859CBC857B
    BC550
    BC547B
    BC817-40WSO2222AW
    BC859W
    BC857BWBC550B
    BC547B
    BC818BC817-25
    BC859AWBC857BW
    BC550C
    BC547C
    BC818-16BC817-25
    BC859BW
    BC857BWBC557
    BC557B
    BC818-25BC817-25
    BC859CWBC857BW
    BC557ABC557B
    BC818-40BC817-40
    BC860
    BC857BBC557B
    BC557B
    BC818WSO2222AW
    BC860ABC857B
    BC557CBC557B
    BC818-16WSO2222AW
    BC860B
    BC857BBC558
    BC557B
    BC818-25WSO2222AW
    BC860CBC857B
    BC558ABC557B
    BC818-40WSO2222AW
    BC860W
    BC857BWBC558B
    BC557B
    BC847BC847B
    BC860AWBC857BW
    BC558CBC557B
    BC847ABC847B
    BC860BW
    BC857BWBC559
    BC557B
    BC847B
    BC847BBC860CWBC857BW
    BC559ABC557B
    BC847C
    BC847CBCP51BCP52-16
    BC559B
    BC557B
    BC847ATBC847B (2)
    BCP52
    BCP52-16BC559CBC557B
    BC847BTBC847B (2)
    BCP53
    BCP53-16BCX55STF2222A
    BC847CTBC847C (2)
    BCP54BCP55-16
    BCX56STF715 
    BC847WBC847BW
    BCP55
    BCP55-16BF420
    BF420
    BC847AWBC847BW
    BCP56
    BCP56-16BF421
    BF421
    BC847BW
    BC847BWBCX17
    BCX17BF422
    BF420
    BC847CW
    BC847CWBCX18
    BCX17BF423
    BF421
    BC848BC847B
    BCX19
    BCX19BF720
    BF720
    BC848ABC847B
    BCX51STF2907A
    BF721
    BF721
    BC848BBC847B
    BCX52STF2907A
    BC849BC847B
    BC848CBC847C
    BCX53STF817 
    BC849BBC847B
    BC848ATBC847B (2)
    BCX54STF2222A
    BC848CWBC847CW
    BC848BTBC847B (2)
    BC848WBC847BW
    BC848BWBC847BW
    BC848CTBC847C (2)
    BC848AWBC847BW




Publish: 2019/6/29 Category: Small Signal Transistors Read: Times Comment: 0Times

WEET Hot SOT-23 Small Package Transistors MMBT8050 MMBT8550 MMBT3906 MMBT3904

Publish: 2019/6/26 Category: Small Signal Transistors Read: Times Comment: 0Times

WEET Strong Small Outline Transistor (SOT) Package Types (SOT-23, SOT-523, SOT-232, TO-92)

    WEE Technology Company Limited

    Manufacturer of Surface Mount (SMD) and Through Hole (DIP) Diodes & Rectifiers

        

    The small outline transistor (SOT) package family consists of many types of very small and inexpensive surface-mount packages used for discrete components and simple IC's.   


    Table 1. Small Outline Transistor (SOT) Package

    SOT-143

    SOT-25

    SOT-353

    SOT-563

    SOT-153

    SOT-252

    SOT-363

    SOT-669

    SOT-163

    SOT-26

    SOT-423

    SOT-723

    SOT-223

    SOT-263

    SOT-457

    SOT-89

    SOT-227

    SOT-323

    SOT-523


    SOT-23

    SOT-343

    SOT-553


    Table 2. Transistor Outline (TO) Package

    TO-126

    TO-220F

    TO-263

    TO-66

    TO-126F

    TO-223

    TO-264

    TO-78

    TO-18

    TO-247

    TO-3

    TO-92

    TO-202

    TO-251

    TO-39

    TO-92L

    TO-218

    TO-252

    TO-3P

    TO-92S

    TO-220

    TO-262

    TO-55

    TO-94



Publish: 2019/6/20 Category: Small Signal Transistors Read: Times Comment: 0Times

WEET is Ready to Work Out a Comprehensive Transistor Factory List For You

Publish: 2019/6/17 Category: Small Signal Transistors Read: Times Comment: 0Times

WEET SOT-23 MMBTSC945 NPN Silicon Epitaxial Planar Transistor for General Purpose Applications

    WEE Technology Company Limited
    Manufacturer of Surface Mount (SMD) and Through Hole (DIP) Diodes & Rectifiers


    NPN Silicon Epitaxial Planar Transistor for general purpose applications, SOT-23 Plastic Package

    This type of transistor is subdivided into five groups , they are R, O,Y, P and L according to its DC current gain. As complementary type the PNP transistorMMBTSA733 is recommended. 


    DC Current Gain at VCE = 6 V, IC = 1 mA 

    MMBTSC945R:  40hFE Min and 80hFE Max.

    MMBTSC945O: 70hFE Min and 140hFE Max.

    MMBTSC945Y: 120hFE Min and 240hFE Max.

    MMBTSC945P:200hFE Min and 400hFE Max.

    MMBTSC945L 350hFE Min and 700hFE Max.


    What's the difference between SOT-23 package and SOT-323 package in SMT (Surface Mounted Transistors)? How does them look the same? How to distinguish them?


    the main difference between SOT-23 package and SOT-323 package is the size difference.  If put them together, the main body of SOT-323 is shorter and SOT-23 is longer. Compared with SOT-23, SOT-323 is much smaller; furthermore, the foot spacing of SOT-323 is also different, and SOT-323 is narrower than SOT-23.


    To know more about this package, we would like to draw your attention that SOT is a surface mounted package with pins less than or equal to 5 small leads transistors. Such as SOT-23, SOT-323, SOT-523, SOT-223,SOT-23-3 and so on.


    Small Outline Transistor (SOT) packages are very small dimensions, usually are plastic-molded packages with more than 3 leads on their two long sides. Due to their low cost and low profile, SOT's are commonly used in consumer electronics. The SOT-23 and the SC-70 packages are two of the most widely used SOT packages nowadays.


    In electronics, packaging not only plays the role of installing, fixing, sealing, protecting chips and enhancing the electrothermal performance, but also connects the contacts on the chips to the pins of the package shell by wires. These pins are connected with other devices through wires on the printed circuit board, thus realizing the connection between the internal chip and the external circuit. Because the chip must be isolated from the outside world to prevent the corrosion of the chip circuit caused by impurities in the air, resulting in the decline of electrical performance. On the other hand, the encapsulated chip is more convenient to install and transport.


    https://www.weetcl.com/Small_Signal_Transistors/WEET_Transistors_SOT-23_MMBTSC945.html

    https://www.weetcl.com/pdf/WEET_Transistors_SOT-23_MMBTSC945.pdf



Publish: 2019/6/11 Category: Small Signal Transistors Read: Times Comment: 0Times

WEET General Purpose Transistors SOT-23 NPN PNP Silicon BC856 THRU BC860-BC846 THRU BC850

    WEE Technology Company Limited
    Manufacturer of Surface Mount (SMD) and Through Hole (DIP) Diodes & Rectifiers


    BC846, BC847, BC848, BC849, BC850, BC856, BC857, BC858, BC859, BC860  Series General Purpose Transistors NPN Silicon http://weetcl.com

    These transistors are designed for general purpose amplifier applications. They are housed in the TO-236/SOT-323 which is COLLECTOR designed for low power surface mount SMD applications. 


    WEET NPN/PNP Epitaxial Silicon Transistor Mainly Features:

    BC856 THRU BC860, BC846 THRU BC850 Series types are NPN Silicon Transistors manufactured by the epitaxial planar process, epoxy molded in a SUPERminiTM surface mount package, designed for general purpose switching and amplifier applications.


    https://www.weetcl.com/pdf/WEET_Transistors_SOT-23_BC846_THRU_BC850.pdf

    WEE Technology PNP Silicon Epitaxial Planar Transistors SOT-23(TO-236) Small Transistors (BC846A, BC846B, BC846C, BC847A, BC847B, BC847C, BC848A, BC848B, BC848C, BC849A, BC849B, BC849C, BC850A, BC850B, BC850C)

     

    https://www.weetcl.com/pdf/WEET_Transistors_SOT-23_BC856_THRU_BC860.pdf

    WEE Technology PNP Silicon Epitaxial Planar Transistors SOT-23(TO-236) Small Transistors (BC856A, BC856B, BC856C, BC857A, BC857B, BC857C, BC858A, BC858B, BC858C, BC859A, BC859B, BC859C, BC860A, BC860B, BC860C)


    https://www.weetcl.com/pdf/WEET_Transistors_SOT-23_Pacakge_Outline.pdf



Publish: 2019/6/9 Category: Small Signal Transistors Read: Times Comment: 0Times
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