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AT2122-CUH-S AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

AT2122-CUH-S product

AT2122-CUH-S

Component

photo relayMOSFET outputSMD45 kVrms isolation2 A load

AT2122-CuH-S is an SMD4 MOSFET photo relay for isolated switching of loads up to 60 V peak AC and 2 A continuous current.

Best for

  • Isolated low-voltage AC load switching
  • Industrial control interfaces
  • Appliance control circuits

Avoid if

  • Load voltage exceeds 60 V peak AC
  • Continuous load current exceeds 2 A
  • High-speed switching is required

Check before use

  • Confirm load waveform and peak voltage
  • Calculate conduction loss from on-resistance
  • Validate PCB footprint and creepage requirements

Key specifications

Isolation voltage
5,000 Vrms
Load voltage
60 V peak AC
Continuous load current
2 A
On-resistance
0.08 Ω typ., 0.2 Ω max.
Package
SMD4

Compliance & Environment

RoHS
Compliant
REACH
Compliant
MSL
MSL 1
ECCN
-
HTSUS
-

Application

Industrial automationAppliance controlIsolated power switching

Datasheet

c16f162dcf5ae7b2f6e075baf3c3bb9e_AT2122-CuH-S.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for AT2122-CUH-S: 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

AT2122-CuH-S is an AOTE SMD4 optically isolated solid-state relay. Its LED input controls a bidirectional MOSFET output, providing 5,000 Vrms input-to-output isolation.