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SMAJ40A AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

SMAJ40A product

SMAJ40A

TVS - Diodes

TVS Diode400WSMAUnidirectional

The SMAJ40A is a 400W unidirectional TVS diode in an SMA package, ideal for protecting sensitive electronics from voltage transients.

Best for

  • General circuit protection
  • Voltage transient suppression

Avoid if

  • Applications requiring bidirectional protection (use SMAJ40CA instead)

Check before use

  • Maximum clamping voltage
  • Peak pulse power limits

Key specifications

Peak Pulse Power
400 W
Working Voltage
40 V
Clamping Voltage
64.5 V

Compliance & Environment

RoHS
Compliant
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

Power SuppliesConsumer Electronics

Datasheet

796f0afe61e717445945d462c08e0fcc_SMAJ SERIES-汽车电子.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for SMAJ40A: 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 SMAJ40A is a surface-mount unidirectional Transient Voltage Suppressor (TVS) diode designed to protect circuits from voltage spikes and transients.