Skip to main content
Renesas Electronics PS2381-1Y-V-AX — Optoisolators

PS2381-1Y-V-AX Photocoupler, 5000Vrms Isolation

MPNPS2381-1Y-V-AX
End of Life

Renesas PS2381-1Y-V-AX single-channel DC-input transistor-output photocoupler, 5000Vrms isolation, 50%–400% CTR @ 5mA, 80V output max, 4-SMD Gull Wing package, -40°C to 115°C.

$3.14Ref. price · indicative, final on quote
Packaging4-SMD, Gull Wing
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

PS2381-1Y-V-AX specifications
ParameterValue
Input typeDC
Output typeTransistor
MountingSurface Mount
Voltage - isolation5000Vrms
Voltage - output80V
Voltage - forward (Vf)1.1V
Current - output (Channel)50mA
Current transfer ratio400% @ 5mA
Current - DC forward (If)60 mA
Operating temperature-40°C ~ 115°C
PackageStrip
Case4-SMD, Gull Wing
Channels1
Vce saturation300mV
Rise (Fall time)4µs, 5µs

Product details

5000Vrms isolation in a 4-SMD Gull Wing package

The PS2381-1Y-V-AX: Single-channel photocoupler with DC input and transistor output. Isolation voltage is 5000Vrms.

CTR spread: 50% to 400% — design margin, not a headache

Current transfer ratio is 50% minimum to 400% maximum at 5mA forward current. Vce saturation is 300mV maximum.

Switching speed and output drive

Rise time is 4µs typical and fall time is 5µs typical.

Strip packaging is used for this part.

Frequently asked questions

Can PS2381-1Y-V-AX be used for AC input?

No, the PS2381-1Y-V-AX has a DC input type. The LED side requires a steady forward current. For AC line sensing, you would need to add external rectification or select a photocoupler with an AC input rating.