MF-SVS170NL-0

Overview

The Bourns MF-SVS170NL-0 is a PPTC resettable fuse from the Multifuse MF-SVS series, designed for strap mounting with axial leads. It features a 1.7 A hold current and a 4.1 A trip current at rated conditions. The device supports a maximum voltage of 10 V and handles a maximum fault current of 100 A. Its initial resistance is specified at 32 mOhms, with a power dissipation rating of 2.1 W. The component operates within a temperature range of -40°C to +85°C. Physical dimensions include a length of 10.4 mm, width of 3.9 mm, and height of 0.9 mm.

Feature Summary

• Provides overcurrent protection through polymer positive temperature coefficient technology that automatically resets after fault clearance.
• Designed for strap mounting applications utilizing axial leads for secure mechanical attachment.
• Offers robust circuit protection in high-voltage and high-temperature environments while eliminating nuisance tripping caused by ambient temperature changes.

Applications

• Overcurrent and surge protection for automotive circuits
• Protection for high-reliability electronic equipment
• Industrial transportation systems requiring resettable fault protection

Procurement Notes

Verify the specific suffix 'NL' against the official datasheet to confirm lead configuration and material compliance details. Ensure the selected variant matches the required hold current and voltage ratings for the target application. Cross-reference the manufacturer part number with authorized distributor catalogs to confirm availability and authenticity before procurement.

Selection Notes

Select this component when a low-profile, strap-mountable resettable fuse is required for circuits operating at 10 V or less. The 1.7 A hold current makes it suitable for protecting loads drawing steady currents near this threshold. Consider the 32 mOhms initial resistance for voltage drop calculations and the 100 A maximum fault current capability for short-circuit scenarios.

Part Context

This part belongs to the Bourns Multifuse MF-SVS series of polymer PTC resettable fuses. The series is engineered to provide cost-effective protection in space-constrained designs. Unlike traditional fuses, these devices offer repeated use after fault conditions, reducing maintenance requirements in accessible installations.

Replacement Considerations

Consult the official Bourns replacement guide for direct equivalents. Verify that any substitute maintains the same 1.7 A hold current, 10 V rating, and axial strap-mount form factor to ensure mechanical and electrical compatibility.