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SMAJ45A AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

SMAJ45A product

SMAJ45A

TVS - Diodes

TVS Diode400WSMAUnidirectional

The SMAJ45A is a 400W unidirectional TVS diode in an SMA package, designed for protecting sensitive circuits from voltage transients.

Best for

  • General circuit protection
  • Voltage clamping

Avoid if

  • Applications requiring bidirectional protection (this is a unidirectional part)

Check before use

  • Maximum transient energy levels
  • PCB footprint compatibility

Key specifications

Peak Power
400 W
Reverse Stand-off Voltage
45 V
Clamping Voltage
72.7 V
Package
SMA (DO-214AC)

Compliance & Environment

RoHS
-
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

General Circuit Protection

Datasheet

8f22b5efef900ec7129d5fc26935c32f_SMAJ SERIES N0223 REV.B.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for SMAJ45A: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol
Schematic symbol for your EDA tool
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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
Verified KiCad 8 symbol, footprint, and 3D model
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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

The SMAJ45A is a surface-mount transient voltage suppressor (TVS) diode from FOSAN, rated for 400W peak power dissipation and a 45V reverse stand-off voltage.