ProjectsPricingInsights

SMAJ78A AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

SMAJ78A product

SMAJ78A

TVS - Diodes

TVS Diode400WSMA

The SMAJ78A is a 400W unidirectional TVS diode used for transient voltage suppression in sensitive electronic equipment.

Best for

  • I/O interfaces
  • VCC bus protection
  • General transient protection

Avoid if

  • Applications requiring bidirectional protection (use SMAJ78CA instead)

Check before use

  • Verify the peak pulse power and current ratings against expected transient events.

Key specifications

Peak Pulse Power
400 W
Reverse Stand-Off Voltage
78 V
Clamping Voltage
126 V

Compliance & Environment

RoHS
Compliant
REACH
-
MSL
Level 1
ECCN
-
HTSUS
-

Application

IndustrialConsumer Electronics

Datasheet

6e4be9f8537e09ad214b1c231f5bf237_DO-214AC-SMA-TVS-SMAJ-Series.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for SMAJ78A: 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

The SMAJ78A is a 400W peak pulse power transient voltage suppressor (TVS) diode in an SMA surface-mount package.