72R030XU

Description：PTC RESET FUSE 72V 300MA RADIAL
Series：POLY-FUSE®, 72R
Mfr：Littelfuse Inc.
Package：Bulk

SKU:a48f10231f6e Category: PTC Resettable Fuses Brand: Littelfuse Inc.

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Product introduction

72R030XU is listed in the Ptc Resettable Fuses range at ChipApex. The manufacturer field lists Littelfuse Inc.. Its product description is PTC RESET FUSE 72V 300MA RADIAL. Review the specifications below when checking this part for your BOM.

Ptc Resettable Fuses specifications for 72R030XU

Description：PTC RESET FUSE 72V 300MA RADIAL
Series：POLY-FUSE®, 72R
Mfr：Littelfuse Inc.
Package：Bulk
Type：Polymeric
Voltage - Max：72V
Current - Hold (Ih) (Max)：300 mA
Current - Trip (It)：600 mA
Current - Max：40 A
Time to Trip：3 s
Resistance - Initial (Ri) (Min)：880 mOhms
Resistance - Post Trip (R1) (Max)：2.1 Ohms
Resistance - 25°C (Typ)：-
Operating Temperature：-40°C ~ 85°C
Grade：-
Qualification：-
Ratings：-
Mounting Type：Through Hole
Package / Case：Radial, Disc
Size / Dimension：0.291" Dia x 0.122" T (7.40mm x 3.10mm)
Height - Seated (Max)：0.500" (12.70mm)
Thickness (Max)：-
Lead Spacing：0.201" (5.10mm)

Ptc Resettable Fuses datasheet and documents for 72R030XU

72R030XU

Ptc Resettable Fuses Overview

The Littelfuse Inc. model 72R030XU is an axial radial thru-hole fuse designed for reliable overcurrent protection in compact circuit designs. It supports through-hole PCB mounting and provides consistent performance across consumer electronics, industrial controls, and automotive applications. The device features a maximum holding current of 300 mA and a trip threshold current of 600 mA. It has a maximum ampere rating of 40 A with a fault trip duration of 3 seconds.

Ptc Resettable Fuses Feature Summary

Provides reliable overcurrent protection for circuits, wiring harnesses, and PCB components
Designed for through-hole PCB mounting in compact circuit layouts
Supports diverse safety and design requirements across multiple industries

Ptc Resettable Fuses Applications

Consumer electronics
Industrial controls
Automotive applications

Ptc Resettable Fuses Procurement Notes

Verify the specific Littelfuse part number 72R030XU against official manufacturer documentation to confirm electrical ratings and physical dimensions. Ensure compatibility with the target application's voltage and current requirements before procurement. Cross-reference datasheet specifications for thermal characteristics and mounting constraints to guarantee proper integration into the circuit design.

Ptc Resettable Fuses Selection Notes

Select this component when through-hole mounting is required for overcurrent protection in space-constrained environments. Consider the 300 mA holding current and 600 mA trip threshold for appropriate circuit safeguarding. Evaluate the 40 A maximum ampere rating and 3-second fault trip duration against system fault conditions to ensure adequate protection without nuisance tripping during normal operation transients.

Ptc Resettable Fuses Part Context

This component belongs to the Littelfuse axial radial thru-hole fuse family, which offers comprehensive solutions for overcurrent protection. These fuses are engineered for reliable performance in compact designs, supporting various current and voltage ratings. The series caters to diverse applications including household appliances, power supplies, and automotive systems, providing supplemental or primary circuit protection as needed.