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MF-RHT500-2-14
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Product Detailed Parameters
- Description：PTC 5.0A 16V RADIAL LEADED HI-TE
- Series：Multifuse®, MF-RHT
- Mfr：Bourns Inc.
- Package：Tape & Reel (TR)
- Type：Polymeric
- Voltage - Max：16V
- Current - Hold (Ih) (Max)：5:00 AM
- Current - Trip (It)：9:00 AM
- Current - Max：100 A
- Time to Trip：9 s
- Resistance - Initial (Ri) (Min)：17.5 mOhms
- Resistance - Post Trip (R1) (Max)：45 mOhms
- Operating Temperature：-40°C ~ 125°C
- Grade：Automotive
- Qualification：AEC-Q200
- Ratings：-
- Mounting Type：Through Hole
- Package / Case：Radial, Disc
- Size / Dimension：0.441" L x 0.118" W (11.20mm x 3.00mm)
- Height - Seated (Max)：0.744" (18.90mm)
- Thickness (Max)：-
- Lead Spacing：0.201" (5.10mm)
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Overview
The Bourns MF-RHT500-2-14 is a radial leaded polymer positive temperature coefficient (PPTC) resettable fuse from the Multifuse RHT series. Designed for high-temperature environments, it features a hold current of 5.0 A and a trip current of 9.0 A at a maximum voltage of 16 V. The device offers a maximum interrupt rating of 100 A and an initial resistance of 37 mΩ. It operates within a temperature range of -40°C to +125°C with a lead spacing of 5.1 mm.
Feature Summary
- Provides overcurrent protection using polymer PTC technology that resets automatically after fault clearance.
- Engineered for high-temperature stability with a maximum operating temperature of 125°C.
- Eliminates tripping caused by ambient temperature variations in demanding applications.
Applications
- Automotive circuit protection
- High-reliability electronic equipment
- Industrial transportation systems
Procurement Notes
Verify the specific part number against official Bourns documentation to ensure accuracy. Confirm that the 16V rating and radial lead configuration match the design requirements. Check for RoHS compliance status in the latest datasheet. Ensure the 5.0A hold current is sufficient for the target application's normal operating conditions.
Selection Notes
Select this component when a low-voltage, high-current resettable fuse is required for PCB mounting. The radial lead style facilitates through-hole installation. Consider the 125°C operating limit for thermal management. Compare the 37 mΩ resistance against power loss constraints. Verify the 100A interrupt rating against potential fault currents.
Part Context
This device belongs to the Bourns Multifuse RHT series, which specializes in high-temperature PPTC resettable fuses. The series is designed to provide robust protection in harsh environments where standard components might fail. The MF-RHT500-2-14 variant specifically targets applications requiring 5.0A protection with radial leads.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided data. Consult Bourns technical support for direct replacements or cross-reference with similar RHT series variants such as the MF-RHT550-2-14 if higher current capacity is acceptable.
