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SMF4L12A AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

SMF4L12A product

SMF4L12A

TVS - Diodes

TVS Diode400WSOD-123FLLittelfuse

The SMF4L12A is a 400W unidirectional TVS diode in a compact SOD-123FL package, ideal for protecting sensitive I/O interfaces and power lines from voltage transients.

Best for

  • I/O interface protection
  • Power supply transient protection

Avoid if

  • Applications requiring bidirectional protection (this is a unidirectional part)

Check before use

  • Maximum transient energy levels

Key specifications

Reverse Stand-off Voltage
12 V
Peak Pulse Power
400 W
Clamping Voltage
19.9 V

Compliance & Environment

RoHS
ROHS3 Compliant
REACH
-
MSL
Level 1
ECCN
-
HTSUS
-

Application

Consumer ElectronicsPower Supplies

Datasheet

media

800 KB

Datasheet AI

CAD Models

Download ECAD models for SMF4L12A: 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
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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 SMF4L12A is a surface-mount Transient Voltage Suppressor (TVS) diode from Littelfuse, designed to protect electronic circuits from voltage spikes.