ProjectsPricingInsights

SM4T28AY AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

SM4T28AY product

SM4T28AY

TVS - Diodes

AutomotiveTVS Diode400W

The SM4T28AY is an automotive-grade 400W unidirectional TVS diode in an SMA package, optimized for surge and ESD protection.

Best for

  • Automotive circuit protection
  • ESD suppression

Avoid if

  • Applications requiring bidirectional protection

Check before use

  • Polarity orientation
  • Thermal derating

Key specifications

Peak Pulse Power
400 W
Stand-off Voltage
24 V
Package
SMA (DO-214AC)

Compliance & Environment

RoHS
ROHS3 Compliant
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

Automotive

Datasheet

SM4T28AY-STMicroelectronics-datasheet-10835822.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for SM4T28AY: 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

It is a 400W Transil (TVS) diode from STMicroelectronics, specifically designed for automotive applications to protect against surges and ESD.