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MF-RX160/72-2
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Product Detailed Parameters
- Description：PTC RESET FUSE 72V 1.6A RADIAL
- Series：Multifuse®, MF-RX/72
- Mfr：Bourns Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Polymeric
- Voltage - Max：72V
- Current - Hold (Ih) (Max)：1.6 A
- Current - Trip (It)：3.2 A
- Current - Max：40 A
- Time to Trip：11.4 s
- Resistance - Initial (Ri) (Min)：90 mOhms
- Resistance - Post Trip (R1) (Max)：220 mOhms
- Operating Temperature：-40°C ~ 85°C
- Grade：-
- Qualification：-
- Ratings：-
- Mounting Type：Through Hole
- Package / Case：Radial, Disc
- Size / Dimension：0.642" L x 0.122" W (16.30mm x 3.10mm)
- Height - Seated (Max)：0.839" (21.30mm)
- Thickness (Max)：-
- Lead Spacing：0.201" (5.10mm)
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Overview
The MF-RX160/72-2 is a polymeric positive temperature coefficient (PPTC) resettable fuse from the Bourns Multifuse MF-RX/72 series. Designed for through-hole PCB mounting, this radial leaded component provides overcurrent protection with a maximum voltage rating of 72 VDC. It features a hold current of 1.60 A and a trip current of 3.2 A, ensuring reliable circuit interruption during fault conditions. The device exhibits a low resistance of 0.09 ohms to minimize power loss during normal operation. It operates within a temperature range of -40°C to +85°C and measures 7.4 mm in diameter.
Feature Summary
- Polymeric PTC technology enables automatic recovery after fault clearance without manual replacement
- Radial leaded construction facilitates standard through-hole PCB mounting processes
- Low on-resistance design minimizes power dissipation and heat generation during normal operation
Applications
- Overcurrent protection for portable electronic devices
- Protection circuits for battery-powered equipment
- Surge and overload protection in consumer electronics
Procurement Notes
Verify the specific ordering suffix against the manufacturer's official datasheet to confirm package type and tape-and-reel specifications. Ensure the selected variant matches the required hold and trip current ratings for the target application circuit. Confirm RoHS compliance status and manufacturing origin if required by procurement standards.
Selection Notes
Select this component based on the 1.60 A hold current and 72 VDC maximum voltage requirements. Evaluate the thermal environment to ensure operation remains within the specified -40°C to +85°C range. Consider the physical dimensions and radial lead spacing for adequate PCB footprint clearance and mechanical stability.
Part Context
This part belongs to the Bourns Multifuse MF-RX/72 series of resettable fuses. The series offers various current ratings within a compact radial package, providing a reusable alternative to traditional one-time fuses. The MF-RX designation indicates a polymeric PTC device optimized for general-purpose overcurrent protection in commercial and industrial applications.
Replacement Considerations
Cross-reference with other MF-RX series variants such as MF-RX160/72-AP or MF-RX160-72-2 for potential substitutes. Verify that any alternative maintains identical electrical parameters including hold current, trip current, and maximum voltage ratings.
