ProjectsPricingInsights

MOC3021SR2M AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

MOC3021SR2M product

MOC3021SR2M

SCR Output

OptocouplerTriac Driver400VSMD

The MOC3021SR2M is a 400V random-phase triac driver optocoupler in a 6-SMD package, ideal for isolating low-voltage control logic from high-voltage AC loads.

Best for

  • Industrial AC load control
  • Solid state relays

Avoid if

  • Directly driving high-current loads without a power triac

Check before use

  • dv/dt ratings and snubber requirements

Key specifications

Peak Blocking Voltage
400 V
Isolation Voltage
4170 VACRMS
Trigger Current
15 mA

Compliance & Environment

RoHS
ROHS3 Compliant
REACH
REACH Unaffected
MSL
1 (Unlimited)
ECCN
EAR99
HTSUS
8541.49.8000

Application

Industrial ControlsSolid State Relay

Datasheet

195672.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for MOC3021SR2M: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol
Schematic symbol for your EDA tool
Get Files
PCB Footprint
Land pattern for PCB layout
Get Files
3D Model
STEP file for mechanical design
Get Files
KiCad Library
Verified KiCad 8 symbol, footprint, and 3D model
Generate library

Login required · CAD models billed separately as an add-on

Where to Buy

Real-time and catalog pricing from verified distributors

Live prices updated on demand · Catalog (~) prices may differ

Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

It is an optically isolated triac driver that uses a GaAs infrared LED to trigger a silicon bilateral switch, allowing low-voltage control of AC power circuits.