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Vishay SFH6156-2T — Optoisolators

SFH6156-2T Optocoupler, 5300Vrms, 63-125% CTR, 4-SMD

MPNSFH6156-2T
End of Life

Vishay SFH6156-2T optocoupler, 1-channel DC-input transistor output, 5300Vrms isolation, 63-125% CTR at 10mA, 4-SMD gull wing package, -55°C to 100°C.

$0.62Ref. price · indicative, final on quote
Packaging4-SMD, Gull Wing
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SFH6156-2T specifications
ParameterValue
Input typeDC
Output typeTransistor
MountingSurface Mount
Voltage - isolation5300Vrms
Voltage - output70V
Voltage - forward (Vf)1.25V
Current - output (Channel)50mA
Current transfer ratio125% @ 10mA
Current - DC forward (If)60 mA
Operating temperature-55°C ~ 100°C
PackageTape & Reel (TR); Cut Tape (CT)
Case4-SMD, Gull Wing
Channels1
Vce saturation400mV
Rise (Fall time)2µs, 2µs
Turn on (Turn off time)3µs, 2.3µs

Product details

Galvanic isolation with a 5300 Vrms barrier

The Vishay SFH6156-2T is a single-channel optocoupler with a phototransistor output, designed to pass DC signals across a reinforced isolation barrier rated at 5300 Vrms. The 4-SMD gull-wing package suits surface-mount assembly in industrial PSUs, motor drives, and PLC I/O modules where galvanic separation between control and power domains is mandatory.

CTR bin and switching speed

Typical rise and fall times are 2 µs each, with turn-on at 3 µs and turn-off at 2.3 µs — fast enough for 100 kHz switching in isolated gate drives or status feedback loops.

Output ratings and temperature range

The output transistor is rated for 70 V collector-emitter and 50 mA continuous current, with a maximum saturation voltage of 400 mV at rated drive.

Frequently asked questions

What is the current transfer ratio (CTR) of SFH6156-2T?

The SFH6156-2T has a CTR range of 63% to 125% measured at a forward current of 10 mA. This '-2' bin ensures the output transistor can switch a logic-level load with minimal LED drive.