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TD9521B AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

TD9521B product

TD9521B

MOSFETs - Single

USB SwitchPower DistributionCurrent Limit

The TD9521B is a high-side N-channel MOSFET power switch optimized for USB power distribution, featuring integrated protection against over-current, short-circuits, and thermal overload.

Best for

  • USB power distribution
  • Notebook/Desktop PC ports

Avoid if

  • Applications requiring >3A continuous current

Check before use

  • Ensure RSET is correctly calculated for the desired current limit threshold.

Key specifications

Input Voltage
3.5V - 5.5V
RDS(on)
35mΩ
Max Current
3A

Compliance & Environment

RoHS
Yes
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

USB PortsPC Power Management

Datasheet

237cecb767de1c6145a09508cebd6c09_datasheet.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for TD9521B: 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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Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

The TD9521B is a 35mΩ N-channel MOSFET power switch designed for USB power distribution applications, providing protection and control for downstream devices.