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FDS9431A AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

FDS9431A product

FDS9431A

MOSFETs - Single

P-ChannelMOSFET20V3.5A

The FDS9431A is a P-Channel 20V, 3.5A MOSFET in an 8-SOIC package, optimized for low on-resistance and efficient power switching.

Best for

  • DC/DC converters
  • Battery protection circuits
  • Load switching

Avoid if

  • Applications requiring high-voltage (exceeding 20V) or high-current (exceeding 3.5A) handling.

Check before use

  • Thermal design and PCB copper area for heat dissipation.

Key specifications

Drain-Source Voltage
-20 V
Continuous Drain Current
-3.5 A
RDS(on) (Max)
0.130 Ω

Compliance & Environment

RoHS
ROHS3 Compliant
REACH
REACH Unaffected
MSL
1 (Unlimited)
ECCN
EAR99
HTSUS
8541.29.0095

Application

Power ManagementBattery Protection

Datasheet

Fairchild-Semiconductor-company-11.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for FDS9431A: 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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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 FDS9431A is a P-Channel MOSFET from onsemi, utilizing high-density DMOS technology to provide low on-resistance and fast switching for power-sensitive applications.