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SMAJ30A AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

SMAJ30A product

SMAJ30A

Diodes - Zener - Single

TVS DiodeSurface Mount400W30V

The SMAJ30A is a 400W unidirectional TVS diode in an SMA package, designed for protecting sensitive electronic circuits from voltage transients and ESD.

Best for

  • Power supply protection
  • Signal line transient suppression
  • ESD protection

Avoid if

  • Applications requiring bidirectional protection (use SMAJ30CA instead)
  • High-power surges exceeding 400W

Check before use

  • Clamping voltage compatibility
  • Thermal derating requirements

Key specifications

Peak Pulse Power
400 W
Reverse Stand-off Voltage
30 V
Clamping Voltage
48.4 V
Peak Pulse Current
8.3 A

Compliance & Environment

RoHS
ROHS3 Compliant
REACH
-
MSL
1 (Unlimited)
ECCN
EAR99
HTSUS
8541.10.0080

Application

Power SupplyConnectivityGeneral Purpose

Datasheet

5f2411d5b78ce2299c8f47a618048001_2311290958_amsem-SMAJ30A_C7466252.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for SMAJ30A: 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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KiCad Library
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Where to Buy

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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 SMAJ30A is a glass-passivated, unidirectional transient voltage suppressor (TVS) diode manufactured by MDD, designed for surface-mount applications.