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MF-RHT070-0-17
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Product Detailed Parameters
- Description：PTC 0.7A 16V RADIAL LEADED HI-TE
- Series：Multifuse®, MF-RHT
- Mfr：Bourns Inc.
- Package：Bulk
- Type：Polymeric
- Voltage - Max：30V
- Current - Hold (Ih) (Max)：700 mA
- Current - Trip (It)：1.4 A
- Current - Max：40 A
- Time to Trip：4 s
- Resistance - Initial (Ri) (Min)：300 mOhms
- Resistance - Post Trip (R1) (Max)：800 mOhms
- Operating Temperature：-40°C ~ 125°C
- Grade：Automotive
- Qualification：AEC-Q200
- Ratings：-
- Mounting Type：Through Hole
- Package / Case：Radial, Disc
- Size / Dimension：0.270" L x 0.118" W (6.86mm x 3.00mm)
- Height - Seated (Max)：0.425" (10.80mm)
- Thickness (Max)：-
- Lead Spacing：0.201" (5.10mm)
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Overview
The Bourns MF-RHT070-0-17 is a radial leaded polymer positive temperature coefficient (PPTC) resettable fuse designed for high-temperature circuit protection. It features a hold current of 0.7A and a trip current of 1.4A, operating within a maximum voltage rating of 30V. The device offers a maximum interrupting rating of 40A and maintains a resistance range between 0.3Ω and 800mΩ. It supports an operating temperature range from -40°C to +125°C with a standard lead spacing of 5.1mm.
Feature Summary
- Provides overcurrent protection using polymer PTC technology that resets automatically after fault clearance
- Engineered for reliable operation in high-temperature environments up to 125°C
- Radial leaded package facilitates through-hole PCB mounting with standardized lead spacing
Applications
- Overcurrent protection for automotive electronic circuits
- Surge protection in industrial communication systems
- Fault protection for consumer electronics power supplies
Procurement Notes
Verify the specific suffix designation against official Bourns documentation to confirm voltage and temperature ratings. Ensure the selected variant matches the required hold and trip currents for the target application circuit. Confirm compliance with relevant safety agency approvals before integration into certified equipment designs.
Selection Notes
Select this component when designing circuits requiring robust thermal stability and automatic recovery from overload conditions. Evaluate the ambient temperature constraints to ensure the device remains within its specified operational limits during normal and fault states. Consider the physical footprint and lead configuration for appropriate PCB layout planning.
Part Context
This part belongs to the Multifuse RHT series, which specializes in high-temperature PPTC devices. These components are engineered to eliminate tripping caused by temperature variations while providing cost-effective protection in space-constrained surface mount or through-hole layouts compared to traditional fuses.
Replacement Considerations
Consult official substitution lists for equivalent radial PPTC fuses with matching electrical characteristics. Verify that any alternative component meets the same voltage, current, and temperature specifications to maintain system integrity.
