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Last update: 8 August 2010

IC numbers:LM385B, AD589, TL431
IC function:Voltage reference diode

Component documentation
IC numberManufacturerDocumentation
LM385BMotorola (now ON Semiconductor)Web page, Datasheet (PDF)
AD589Analog DevicesWeb page, Datasheet (PDF)
TL431Motorola (now ON Semiconductor)Web page, Datasheet (PDF)

Component versions
IC numberPackageVoltageCBM part numberCBM part description
LM385B-1.2, AD589JR8-pin SO1.2V391421-01Voltage Reference, 1.2V, SO-8
TL4318-pin DIPajustable390324-01TL431
TL4318-pin SOajustable391205-01TL431 (SO8) TL431CD available from:Conrad
TL431ACD available from:Conrad
TL431ACD available from:Conrad
TL431AID available from:Conrad
TL431AID available from:Conrad

Positions
DevicePositionComponentVoltagePackage
A1200D215LM385B, AD589JR1.2VSO
A4000D5071.2VSO
A4000TU470LM385B1.2VSO
CD³²D215AD589JR1.2VSO
PC40-IIIU117TL431ajustableDIP
PC60-IIIU133TL431ajustableDIP
SL286/SL386SX main boardU514TL431ajustableSO

Pinout LM385B, AD589
PinFunction
1..3N/C
4Anode (negative)
5..7N/C
8Cathode (positive)

Pinout TL431 DIP package
PinFunction
1Cathode (positive)
2..5N/C
6Anode (negative)
7N/C
8Reference

Pinout TL431 SO package
PinFunction
1Cathode (positive)
2..3Anode (negative)
4..5N/C
6..7Anode (negative)
8Reference

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