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30R400UF AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

30R400UF product

30R400UF

PTC Resettable Fuses

PTCResettable FuseOvercurrent Protection

The 30R400UF is a 30V, 4A radial resettable PTC fuse designed for reliable overcurrent protection in low-voltage circuits.

Best for

  • USB peripherals
  • General electronics
  • Motor protection

Avoid if

  • Applications exceeding 30V or requiring high-speed fuse characteristics.

Check before use

  • Thermal derating curves for high-temperature environments.

Key specifications

Hold Current
4 A
Max Voltage
30 V
Resistance Range
0.01 - 0.05 Ω

Compliance & Environment

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

Application

USB HubsMotor Protection

Datasheet

30R400UF-Littelfuse-datasheet-7606834.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for 30R400UF: 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

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 radial leaded resettable PTC fuse from Littelfuse, rated for 30V and 4A hold current.