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RXE030 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 RXE030
- Description：PTC RESET FUSE 72V 300MA RADIAL
- Series：PolySwitch®, RXE
- 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
- Operating Temperature：-
- Ratings：-
- Mounting Type：Through Hole
- Package / Case：Radial, Disc
- Size / Dimension：0.291" Dia x 0.118" T (7.40mm x 3.00mm)
- Height - Seated (Max)：0.500" (12.70mm)
- Thickness (Max)：-
- Lead Spacing：0.199" (5.05mm)
Ptc Resettable Fuses datasheet and documents for RXE030
Ptc Resettable Fuses Overview
The RXE030 is a radial lead polymeric positive temperature coefficient (PPTC) resettable fuse manufactured by Littelfuse Inc. It features a hold current of 0.3A and a trip current of 0.6A, designed for overcurrent protection in low-voltage circuits. The device has a maximum voltage rating of 72V DC and an interrupting capacity (Imax) of 40A. It utilizes a disc package configuration suitable for through-hole mounting on printed circuit boards.
Ptc Resettable Fuses Feature Summary
- Polymeric PPTC technology provides automatic reset functionality after fault clearance
- Radial lead construction facilitates standard PCB insertion
- High interrupting capacity ensures safety during severe short-circuit conditions
Ptc Resettable Fuses Applications
- Overcurrent protection for portable electronic devices
- Protection of battery-powered equipment circuits
- Industrial control system component safeguarding
Ptc Resettable Fuses Procurement Notes
This component is officially classified as obsolete and is no longer manufactured by Littelfuse Inc. Procurement should focus exclusively on verified direct replacement part numbers such as the 60R030XU. Verify that substitute components match the original electrical ratings and physical dimensions to ensure circuit compatibility and maintain design integrity without requiring layout modifications.
Ptc Resettable Fuses Selection Notes
Designers must account for the discontinued status when selecting this component for new projects. Evaluate thermal derating requirements based on ambient operating temperatures to prevent nuisance tripping. Ensure that the selected replacement maintains the same voltage and current ratings while verifying package compatibility with existing board footprints and assembly processes.
Ptc Resettable Fuses Part Context
The RXE030 belongs to Littelfuse's broader portfolio of circuit protection devices, specifically within the PTC resettable fuse category. These components are engineered to provide reliable overcurrent protection in consumer electronics and industrial applications. The product line emphasizes safety compliance and long-term reliability under varying environmental conditions.
Ptc Resettable Fuses Replacement Considerations
The 60R030XU is identified as a direct substitute for the RXE030. Verify that the replacement matches the 0.3A hold current and 72V rating. Confirm physical package compatibility before implementation.
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