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HT-817-D AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

HT-817-D product

HT-817-D

Component

optocouplerphototransistorDIP-4galvanic isolation

HT-817-D is a 4-pin DIP phototransistor optocoupler with CTR rank D, 5,000 Vrms isolation, and an 80 V collector-emitter rating.

Best for

  • Galvanically isolated digital signal interfaces
  • Switching power supplies
  • Industrial and appliance control circuits

Avoid if

  • High-speed isolation beyond the specified response and cutoff characteristics is required
  • A confirmed lifecycle or long-term supply commitment is mandatory

Check before use

  • CTR margin at the actual LED current and temperature
  • PCB package variant and lead spacing
  • Isolation voltage test conditions

Key specifications

Package
4-pin DIP
CTR rank D
300–600% at IF = 5 mA, VCE = 5 V
Isolation voltage
5,000 Vrms
Collector-emitter voltage
80 V

Compliance & Environment

RoHS
Yes
REACH
-
MSL
MSL1
ECCN
-
HTSUS
-

Application

Switching power suppliesProgrammable controllersHome appliances

Datasheet

bcb2bfee52816ec7fb5248d15c1a4430_HT-817-D.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for HT-817-D: KiCad symbol & footprint, Altium footprint, PCB footprint, and 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

HT-817-D is a 4-pin DIP optocoupler consisting of an LED input and a phototransistor output. The D CTR rank specifies 300–600% CTR under the datasheet test condition.