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MF-RX160/72-2-14
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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 & Box (TB)
- 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：0.549" L x 0.122" W (13.94mm x 3.10mm)
- Height - Seated (Max)：0.709" (18.00mm)
- Thickness (Max)：-
- Lead Spacing：0.201" (5.10mm)
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Overview
The Bourns MF-RX160/72-2-14 is a radial leaded polymer PTC resettable fuse from the Multifuse series. It features a hold current of 1.6 A and a trip current of 3.2 A at rated voltage. The component supports a maximum operating voltage of 72 VDC with a maximum fault current rating of 40 A. Its initial resistance is typically 0.09 ohms, and it operates within a temperature range of -40°C to +85°C.
Feature Summary
- Provides automatic circuit protection against overcurrent conditions through positive temperature coefficient behavior.
- Offers reusable functionality by resetting automatically after the fault condition is removed and the device cools down.
- Designed for robust performance in high-voltage and high-temperature environments.
Applications
- LED driver applications
- Current control circuits
- Overheat protection systems
Procurement Notes
Verify availability status as this specific part number may be discontinued or subject to limited distribution. Confirm that the 72V rating aligns with system requirements, as similar variants exist with different voltage ratings. Ensure the radial kinked lead configuration fits the PCB layout constraints before finalizing procurement.
Selection Notes
Select this component when a 1.6A hold current and 72VDC rating are required for through-hole mounting. Compare with the MF-RX160-0-14 variant if the application only requires a 60VDC rating, as they share identical current specifications but differ in voltage tolerance. Verify that the 0.09 ohm resistance meets the circuit's power loss limits.
Part Context
This device belongs to the Bourns Multifuse MF-RX series, which utilizes polymeric PTC technology for circuit protection. The series is engineered to provide cost-effective solutions for preventing short circuits and thermal runaway in electronic assemblies without requiring manual replacement after a fault event.
Replacement Considerations
Publicly confirmed substitute part numbers for this specific discontinued model are not available in the provided documentation. Designers should consult official manufacturer resources for current alternative recommendations.
