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IS281B-N-AXW AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

IS281B-N-AXW product

IS281B-N-AXW

Photovoltaic Output

optocouplerphototransistor outputSSOP4high isolationCTR grade B

IS281B-N-AXW is a 4-pin, high-isolation transistor-output optocoupler in an SSOP4 package, with grade-B CTR of 130–260%.

Best for

  • Galvanically isolated transistor-level signal transfer
  • Switch-mode power supplies
  • Industrial and household control electronics

Avoid if

  • The design requires a guaranteed CTR outside the grade-B range
  • The application requires a different optocoupler output type

Check before use

  • CTR at the actual LED current and collector-emitter voltage
  • Pin orientation and PCB footprint
  • Isolation and creepage requirements

Key specifications

Package
SSOP4
Isolation voltage
3750 Vrms
CTR grade B
130–260%
VCEO
80 V
Operating temperature
-40 °C to 110 °C

Compliance & Environment

RoHS
halogen-free, lead-free
REACH
compliant
MSL
Class 1
ECCN
-
HTSUS
-

Application

Switch-mode power suppliesProgrammable controllersHousehold appliances

Datasheet

1e02ae0e541b8bf025726925e88f90d9_IS281B-N-AXW.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for IS281B-N-AXW: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

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PCB Footprint
Land pattern for PCB layout
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3D Model
STEP file for mechanical design
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Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

It is an ISOMICRON high-isolation optocoupler combining an AlGaAs infrared LED input with a silicon phototransistor output in an SSOP4 surface-mount package.