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FSMD125-R is listed in the Ptc Resettable Fuses range at ChipApex. The manufacturer field lists RFE/Fuzetec. Its product description is RESETTABLE FUSE - SMD, 1812 SIZE. Review the specifications below when checking this part for your BOM.
Ptc Resettable Fuses specifications for FSMD125-R
- Description：RESETTABLE FUSE - SMD, 1812 SIZE
- Series：FSMD1812
- Mfr：RFE/Fuzetec
- Package：Tape & Reel (TR)
- Type：-
- Voltage - Max：6V
- Current - Hold (Ih) (Max)：1.25 A
- Current - Trip (It)：2.5 A
- Current - Max：100 A
- Time to Trip：400 ms
- Resistance - Initial (Ri) (Min)：50 mOhms
- Resistance - Post Trip (R1) (Max)：140 mOhms
- Resistance - 25°C (Typ)：-
- Operating Temperature：-40°C ~ 85°C
- Grade：-
- Qualification：-
- Ratings：-
- Mounting Type：Surface Mount
- Package / Case：1812 (4532 Metric), Concave
- Size / Dimension：0.179" L x 0.128" W (4.55mm x 3.24mm)
- Height - Seated (Max)：-
- Thickness (Max)：0.022" (0.55mm)
- Lead Spacing：-
Ptc Resettable Fuses datasheet and documents for FSMD125-R
Ptc Resettable Fuses Overview
The FSMD125-R is a surface-mount fuse manufactured by RFE/Fuzetec, designed for overcurrent protection in electronic circuits. It features a current rating of 125 mA and a voltage rating of 32 VDC. The component utilizes a thin-film resistive element housed within a compact SMD package to ensure reliable performance under thermal stress. It meets UL safety standards and complies with RoHS directives, making it suitable for modern electronics requiring space-efficient protection solutions.
Ptc Resettable Fuses Feature Summary
- Thin-film technology for precise current interruption
- Compact surface-mount design for board space optimization
- Compliance with UL safety standards and RoHS regulations
Ptc Resettable Fuses Applications
- Portable consumer electronics
- Laptop and tablet power circuits
- Peripheral device protection
Ptc Resettable Fuses Procurement Notes
Verify the specific suffix codes against official manufacturer documentation to confirm exact ratings and certifications. Ensure compatibility with automated pick-and-place equipment during assembly. Confirm that the selected variant meets the required safety agency approvals for the target market.
Ptc Resettable Fuses Selection Notes
Select this component based on the circuit's operating current and voltage requirements. Consider the breaking capacity needed for potential fault conditions. Evaluate the physical footprint constraints of the PCB layout to ensure the SMD package fits the designated area without interfering with adjacent components.
Ptc Resettable Fuses Part Context
This part belongs to the FSMD series of surface-mount fuses, which are engineered for high-reliability applications in portable devices. The series offers various current ratings to accommodate different circuit loads while maintaining a consistent low-profile form factor suitable for dense PCB designs.
Ptc Resettable Fuses Replacement Considerations
Consult official substitution lists from RFE/Fuzetec for direct equivalents. Verify that any alternative part matches the electrical ratings, package dimensions, and safety certifications before implementation.
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