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FODM121CR2 AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

FODM121CR2 product

FODM121CR2

Photovoltaic Output

OptocouplerPhototransistoronsemiIsolation

The FODM121CR2 is a compact, high-performance phototransistor optocoupler from onsemi, featuring a 100-200% CTR and 3750 VAC isolation.

Best for

  • Digital logic isolation
  • Microprocessor input protection
  • Power supply monitoring

Avoid if

  • Applications requiring high-speed switching beyond standard phototransistor limits

Check before use

  • CTR range compatibility
  • Isolation voltage requirements

Key specifications

Isolation Voltage
3750 VAC
CTR Range
100-200%
Package
4-SMD

Compliance & Environment

RoHS
ROHS3 Compliant
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

Power Supply MonitorDigital Logic Inputs

Datasheet

Fairchild-Semiconductor-company-11.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for FODM121CR2: 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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Where to Buy

Real-time and catalog pricing from verified distributors

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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 4-pin mini-flat package optocoupler using a gallium arsenide infrared LED and a phototransistor, suitable for space-constrained isolation applications.