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AT815-CUH-S AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

AT815-CUH-S product

AT815-CUH-S

Transistor

Darlington optocouplerSMD45000 Vrms isolation40 V outputHigh CTRIndustrial control

AT815-CuH-S is a 4-pin SMD Darlington optocoupler intended for high-CTR isolated control and feedback circuits, with 5,000 Vrms isolation and a 40 V output rating.

Best for

  • High-CTR isolated control signals
  • Relay and PLC interface drive
  • Low-speed isolated power-feedback circuits

Avoid if

  • Fast switching beyond the specified optocoupler response range
  • Applications requiring tightly controlled CTR without circuit margin
  • Output voltage above 40 V

Check before use

  • CTR range at the actual LED operating current
  • Load resistance and switching-time budget
  • 5,000 Vrms isolation and PCB spacing requirements

Key specifications

Isolation voltage
5000 Vrms
Output configuration
Darlington phototransistor
Collector-emitter rating
40 V
CTR
600% to 7500% at IF=1 mA, VCE=5 V
Package
SMD4, 4 pins

Compliance & Environment

RoHS
Compliant
REACH
Compliant
MSL
MSL 1
ECCN
-
HTSUS
-

Application

Industrial automation and PLC interfacesRelay and motor-control interfacesIsolated power-supply feedbackDigital control interfaces

Datasheet

f12689a915639afc8697ed440fa656fc_AT815-CuH-S.pdf

800 KB

Datasheet AI

CAD Models

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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

AT815-CuH-S is an AOTE AT815-series SMD4 optocoupler using an LED input and Darlington phototransistor output. It provides galvanic isolation between input and output.