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30R300UPR-S is listed in the Ptc Resettable Fuses range at ChipApex. The manufacturer field lists Littelfuse Inc.. Its product description is POLYFUSE RADIAL. Review the specifications below when checking this part for your BOM.
Ptc Resettable Fuses specifications for 30R300UPR-S
- Description：POLYFUSE RADIAL
- Series：-
- Mfr：Littelfuse Inc.
- Package：Bulk
- Type：-
- Voltage - Max：-
- Current - Hold (Ih) (Max)：-
- Current - Trip (It)：-
- Current - Max：-
- Time to Trip：-
- Resistance - Initial (Ri) (Min)：-
- Resistance - Post Trip (R1) (Max)：-
- Resistance - 25°C (Typ)：-
- Operating Temperature：-
- Grade：-
- Qualification：-
- Ratings：-
- Mounting Type：-
- Package / Case：-
- Size / Dimension：-
- Height - Seated (Max)：-
- Thickness (Max)：-
- Lead Spacing：-
Ptc Resettable Fuses datasheet and documents for 30R300UPR-S
Ptc Resettable Fuses Overview
The Littelfuse 30R300UPR-S is a PolySwitch resettable PTC device designed for overcurrent protection. It features a holding current of 3 A and a trip current of 6 A, with a maximum voltage rating of 30 VDC. The component exhibits a maximum resistance of 80 mOhms and can withstand a rated fault current of 40 A. It operates within a temperature range of -40°C to +85°C and dissipates up to 2 W of power. The device utilizes radial leads with a 5.1 mm spacing and measures 19.2 mm in length, 11.4 mm in width, and 3 mm in height.
Ptc Resettable Fuses Feature Summary
- Provides reliable overcurrent protection by increasing resistance upon heating to limit current flow
- Offers automatic circuit restoration after the fault condition is removed and the device cools down
- Designed for PCB mounting with radial leads for through-hole integration
Ptc Resettable Fuses Applications
- Protection of circuits, wiring harnesses, and PCB components
- Overcurrent protection for automotive actuators, screens, and small motors
- Circuit safeguarding in telecom and networking equipment
Ptc Resettable Fuses Procurement Notes
Verify the specific suffix 'S' against official Littelfuse documentation to confirm if it denotes a distinct variant or packaging specification compared to the standard 30R300UPR. Ensure the procurement channel provides valid manufacturer traceability and confirms RoHS compliance status as listed in the product attributes.
Ptc Resettable Fuses Selection Notes
Select this component when a 3 A holding current and 30 VDC maximum voltage rating are required for circuit protection. Consider the 80 mOhms resistance and 2 W power dissipation capabilities for thermal management. Verify that the radial lead form factor and 5.1 mm spacing align with the target PCB layout requirements.
Ptc Resettable Fuses Part Context
This part belongs to the Littelfuse 30R series of PolySwitch resettable fuses. These devices are solid-state PTCs that raise resistance as they heat to limit current. The series includes surface-mount, radial-leaded, bladed, and battery-strap options for various protection needs.
Ptc Resettable Fuses Replacement Considerations
The 30R300UPR is a confirmed substitute part number with identical electrical parameters including 3 A holding current, 6 A trip current, and 30 VDC rating.
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