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MF-RX185-AP-99
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Product Detailed Parameters
- Description：PTC RESET FUSE 60V 1.85A RADIAL
- Series：Multifuse®, MF-RX
- Mfr：Bourns Inc.
- Package：Tape & Box (TB)
- Type：Polymeric
- Voltage - Max：60V
- Current - Hold (Ih) (Max)：1.85 A
- Current - Trip (It)：3.7 A
- Current - Max：40 A
- Time to Trip：12.6 s
- Resistance - Initial (Ri) (Min)：80 mOhms
- Resistance - Post Trip (R1) (Max)：190 mOhms
- Operating Temperature：-40°C ~ 85°C
- Grade：-
- Qualification：-
- Ratings：-
- Mounting Type：Through Hole
- Package / Case：Radial, Disc
- Size / Dimension：0.701" L x 0.122" W (17.80mm x 3.10mm)
- Height - Seated (Max)：0.902" (22.90mm)
- Thickness (Max)：-
- Lead Spacing：0.201" (5.10mm)
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Overview
The MF-RX185-AP-99 is a polymer PTC resettable fuse manufactured by Bourns Inc. It features an axial leaded package and is RoHS compliant. The device provides circuit protection with a hold current of 1.60A and a trip current of 3.2A. It operates at a maximum voltage of 60V and has a typical resistance of 0.09 ohms.
Feature Summary
- Polymer positive temperature coefficient (PPTC) technology for reliable overcurrent protection
- Radial leaded through-hole mounting configuration for standard PCB integration
- RoHS compliant construction supporting environmentally conscious manufacturing standards
Applications
- Consumer electronics power supply circuits
- Industrial instrumentation input protection
- Telecommunications equipment line interfaces
Procurement Notes
Verify the specific suffix -AP-99 against the official Bourns datasheet to confirm axial lead orientation and compliance status. Ensure the selected variant matches the required voltage and current ratings for the target application before finalizing procurement orders.
Selection Notes
Select this component when axial leads are preferred over radial or surface mount options. Confirm that the 60V rating and 1.60A hold current align with the system's operational parameters. Verify thermal derating requirements based on ambient operating temperatures.
Part Context
This part belongs to the MF-RX series of resettable fuses from Bourns. The series offers various configurations including radial and axial leads with different voltage and current ratings to suit diverse circuit protection needs across multiple industries.
Replacement Considerations
Cross-reference with other MF-RX variants such as MF-RX160-72-2 for similar electrical characteristics but different voltage ratings. Ensure mechanical fit and lead spacing compatibility when substituting with alternative packages within the same product family.
