SMAJ20A AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

SMAJ20A product

SMAJ20A

TVS - Diodes

TVS Diode400WSMAUnidirectional

The SMAJ20A is a 400W unidirectional TVS diode designed for transient voltage protection in surface-mount applications.

Best for

  • General transient voltage protection
  • Consumer electronics
  • Industrial control circuits

Avoid if

  • High-power surge environments exceeding 400W
  • AC line protection without proper series impedance

Check before use

  • Thermal derating above 25°C
  • PCB layout for heat dissipation

Key specifications

Vrwm
20V
VBR
22.2V - 24.5V
VC
32.4V
Ipp
12.3A

Compliance & Environment

RoHS
RoHS compliant
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

Power SuppliesConsumer Electronics

CAD Models

Download ECAD models for SMAJ20A: 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

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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 400W unidirectional transient voltage suppressor (TVS) diode in a DO-214AC (SMA) package, used to protect sensitive electronics from voltage spikes.