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MF-R500-AP-99
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Product Detailed Parameters
- Description：PTC RESET FUSE 30V 5A RADIAL
- Series：Multifuse®, MF-R
- Mfr：Bourns Inc.
- Package：Tape & Box (TB)
- Type：Polymeric
- Voltage - Max：30V
- Current - Hold (Ih) (Max)：5:00 AM
- Current - Trip (It)：10:00 AM
- Current - Max：40 A
- Time to Trip：14.5 s
- Resistance - Initial (Ri) (Min)：10 mOhms
- Resistance - Post Trip (R1) (Max)：50 mOhms
- Operating Temperature：-40°C ~ 85°C
- Grade：-
- Qualification：-
- Ratings：-
- Mounting Type：Through Hole
- Package / Case：Radial, Disc
- Size / Dimension：0.685" L x 0.118" W (17.40mm x 3.00mm)
- Height - Seated (Max)：0.980" (24.90mm)
- Thickness (Max)：-
- Lead Spacing：0.402" (10.20mm)
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Overview
The Bourns MF-R500-AP-99 is a radial leaded PPTC resettable fuse from the Multifuse MF-R series. It features a 5 A hold current and a 10 A trip current, designed for operation at a maximum voltage of 30 VDC. The component exhibits a low resistance of 30 mOhms and can withstand a maximum fault current of 40 A. It operates within a temperature range of -40°C to +85°C and utilizes a 10.2 mm lead spacing for PCB mounting.
Feature Summary
- Provides automatic circuit protection through self-resetting polymer positive temperature coefficient technology
- Offers reliable overcurrent safeguarding with defined hold and trip current thresholds
- Features radial leads for standard printed circuit board integration
Applications
- Overcurrent protection in electronic circuits requiring resettable fusing
- Protection of power supplies and peripheral interfaces
- Industrial equipment circuit safeguarding
Procurement Notes
Verify the specific suffix AP-99 against official Bourns documentation to confirm packaging details and compliance status. Ensure the selected variant matches the required lead spacing and thermal characteristics for the target application environment.
Selection Notes
Select this component when a 5 A continuous current rating and 30 VDC maximum operating voltage are required. Consider the 30 mOhms resistance for power loss calculations and verify that the 40 A maximum fault current capability aligns with the system's potential short-circuit conditions.
Part Context
This part belongs to the Bourns Multifuse MF-R series of resettable fuses. The series provides various hold current options and package styles to suit different circuit protection needs. The MF-R designation indicates a standard polymeric PTC device suitable for general electronic protection applications.
Replacement Considerations
Consult official substitution guides for equivalent PPTC devices with matching electrical ratings. Verify compatibility regarding package dimensions, lead configuration, and thermal performance before implementing any alternative components.
