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Product Detailed Parameters
- Description:PTC RESET FUSE 16V 1.7A STRAP
- Series:Multifuse®, MF-VS
- Mfr:Bourns Inc.
- Package:Bulk
- Type:Polymeric
- Voltage - Max:16V
- Current - Hold (Ih) (Max):1.7 A
- Current - Trip (It):3.4 A
- Current - Max:100 A
- Time to Trip:3 s
- Resistance - Initial (Ri) (Min):30 mOhms
- Resistance - Post Trip (R1) (Max):105 mOhms
- Operating Temperature:-40°C ~ 85°C
- Grade:-
- Qualification:-
- Ratings:-
- Mounting Type:User Defined
- Package / Case:Strap
- Size / Dimension:0.669" L x 0.205" W (17.00mm x 5.20mm)
- Height - Seated (Max):-
- Thickness (Max):0.035" (0.90mm)
- Lead Spacing:-
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Overview
The Bourns MF-VS170-0 is a resettable polymeric positive temperature coefficient (PPTC) device from the Multifuse series. It features axial leads and strap mount installation style. The component has a hold current of 1.7 A, trip current of 3.4 A, and maximum voltage rating of 6 VDC. Its resistance is 52 mOhms with a maximum rated current of 100 A. Operating temperature range spans from -40°C to +85°C. Physical dimensions include a height of 0.9 mm, width of 0.9 mm, and length of 4.4 mm.
Feature Summary
- Provides automatic circuit protection through reversible resistance increase upon overcurrent conditions
- Designed for direct strap mounting via axial leads without requiring PCB soldering
- Maintains low impedance state during normal operation to minimize power loss
Applications
- Overcurrent protection in LED driver circuits
- Current limiting in battery management systems
- Surge suppression for consumer electronics interfaces
Procurement Notes
Verify the specific voltage rating against application requirements, as datasheets may list varying maximum voltages for similar part numbers. Confirm physical dimensions match the mechanical layout constraints. Ensure the hold current aligns with the operational load to prevent nuisance tripping. Check RoHS compliance status if required by project specifications.
Selection Notes
Select this component when space-constrained axial mounting is preferred over surface-mount alternatives. The 6 VDC rating limits suitability to low-voltage DC applications only. Consider the 52 mOhms resistance impact on signal integrity or power efficiency. Evaluate thermal dissipation capabilities within the enclosed environment to ensure reliable long-term performance under continuous load.
Part Context
This device belongs to the Bourns Multifuse PPTC family, designed for reusable circuit protection. Unlike traditional fuses, it resets automatically after fault clearance. The MF-VS series utilizes polymer technology to balance response speed with durability. It serves as a cost-effective alternative to single-use fuses in accessible electronic assemblies.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing thermal profiles before considering alternative manufacturers.
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