HT-3081-S1TA1 AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

HT-3081-S1TA1 product

HT-3081-S1TA1

Optoisolators - Triac

photo-triac optocouplerzero crossing800 VSMD S1

HT-3081-S1TA1 is a six-pin SMD zero-crossing photo-triac optocoupler for isolated AC switching and power-triac driver circuits.

Best for

  • Isolated AC switching
  • Power-triac driver interfaces
  • Motor, solenoid, and temperature-control circuits

Avoid if

  • A non-zero-crossing optocoupler is required
  • The application exceeds the 100 mA on-state RMS current rating

Check before use

  • LED trigger current and drive resistor
  • Pin 3 no connection and pin 5 substrate restriction
  • Isolation, creepage, clearance, and thermal design

Key specifications

Output
Zero-crossing photo-triac
Off-state voltage
800 V VDRM
Isolation
5000 Vrms
Package
SMD S1, 6 pins

Compliance & Environment

RoHS
RoHS
REACH
-
MSL
MSL1
ECCN
-
HTSUS
-

Application

AC motor controlIndustrial AC switchingSolenoid and valve control

CAD Models

Download ECAD models for HT-3081-S1TA1: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol
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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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KiCad Library
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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 a Hengtuo SMD S1 optocoupler containing a GaAs infrared LED and a zero-crossing photo-triac. The HT-3081 variant has an 800 V repetitive peak off-state voltage rating.