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AT817A-FEH-DE AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

AT817A-FEH-DE product

AT817A-FEH-DE

Component

phototransistor optocouplerDIP45,000 Vrms isolation80 V VCEOCTR grade Athrough-hole

AT817A-FeH-DE is a DIP4 phototransistor optocoupler with A-grade CTR, 5,000 Vrms isolation, and an 80 V collector-emitter rating.

Best for

  • General-purpose isolated digital or low-speed signal interfaces
  • PLC and industrial control isolation
  • Switch-mode power supply feedback or control circuits

Avoid if

  • Guaranteed high-speed isolation is required
  • CTR variation cannot be accommodated by circuit margin
  • The design needs an SMT package

Check before use

  • Validate CTR at the actual LED current and temperature
  • Keep output voltage and collector current within ratings
  • Confirm safety and creepage requirements for the end product

Key specifications

Isolation voltage
5,000 Vrms
CTR, grade A
80% to 160% at IF=1 mA, VCE=5 V
Collector-emitter voltage
80 V
Package
DIP4, 4-pin through-hole
Operating temperature
-55 °C to +110 °C

Compliance & Environment

RoHS
Compliant
REACH
Compliant
MSL
MSL 1
ECCN
-
HTSUS
-

Application

Industrial control and PLC interfacesMeasurement signal isolationSwitch-mode power supplies and smart metersHousehold appliance control circuits

Datasheet

3213fd3e55d2bab41c62a0ddb9f3330d_AT817A-FeH-DE.pdf

800 KB

Datasheet AI

CAD Models

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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

AT817A-FeH-DE is an AOTE 4-pin DIP phototransistor-output optocoupler. The A suffix identifies CTR grade A, specified as 80% to 160% at IF=1 mA and VCE=5 V.