IS281C-N-AXW AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

IS281C-N-AXW product

IS281C-N-AXW

Component

phototransistor optocouplerSSOP44-pin3750 Vrms isolation80 V outputIS281C-N CTR grade

IS281C-N-AXW is a 4-pin SSOP4 phototransistor optocoupler associated with the IS281C-N 200% to 400% CTR grade, intended for isolated low-speed control and feedback signals.

Best for

  • Isolated switch-mode power-supply feedback
  • Programmable-controller signal isolation
  • Low-speed isolated switching

Avoid if

  • Applications requiring a guaranteed high-speed digital isolator
  • Designs needing an ordering-suffix definition not confirmed by supplier
  • Safety-critical use outside the manufacturer's stated intended applications

Check before use

  • Worst-case CTR at actual LED current and operating temperature
  • Output transistor saturation and switching time with the selected load
  • Creepage, clearance, and isolation-system requirements
  • Exact IS281C-N-AXW ordering-code interpretation

Key specifications

Isolation voltage
3750 Vrms
CTR, IS281C-N grade
200% to 400% at IF=5 mA, VCE=5 V
Collector-emitter voltage
80 V
Package
SSOP4, 4 pins
Operating temperature
-40 °C to 110 °C

Compliance & Environment

RoHS
Compliant
REACH
Compliant
MSL
Class 1
ECCN
-
HTSUS
-

Application

Switch-mode power suppliesProgrammable controllersHousehold appliancesOffice equipment

CAD Models

Download ECAD models for IS281C-N-AXW: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

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PCB Footprint
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3D Model
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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

IS281C-N-AXW is an ISOMICRON 4-pin optocoupler listing associated with the IS281X-N family. It combines an AlGaAs infrared LED input with a silicon phototransistor output in an SSOP4 package. The documented IS281C-N CTR range is 200% to 400% at IF=5 mA and VCE=5 V.