MF-NSML175-2 Equivalent & Substitute Parts

Part Overview

The MF-NSML175-2 is a Polymeric PTC Resettable Fuse manufactured by Bourns Inc., rated for 6V maximum voltage with 1.75A hold current. This component is designed for overcurrent protection in surface mount applications using 1206 (3216 Metric) package format. The part is currently listed as Obsolete, making identification of compatible substitutes essential for ongoing design support and component procurement.

Substiute Parts

MF-NSML175-2

Bourns Inc.In Stock: 2995MF-NSML175-2 Datasheet

Current PartRFQ

MF-NSML175/6-2

Bourns Inc.In Stock: 5896MF-NSML175/6-2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MF-NSML175-2 is determined by the following critical parameters:

• Voltage rating: 6V maximum
• Current hold rating: 1.75A
• Current trip rating: 4.6A
• Package format: 1206 (3216 Metric), Concave
• Mounting type: Surface Mount
• Regulatory compliance: cURus, TUV approval; ROHS3 Compliant

The substitute part MF-NSML175/6-2 maintains identical voltage, hold current, trip current, package dimensions, and regulatory certifications. Variations in time to trip, initial resistance, and post-trip resistance remain within acceptable engineering tolerances for this component category and do not preclude functional substitution.

Parameter Comparison

Engineering Selection Recommendations

The MF-NSML175/6-2 is the direct substitute for the obsolete MF-NSML175-2. Both components share identical voltage and current ratings, package format, and regulatory certifications (cURus, TUV approval; ROHS3 Compliant). The MF-NSML175/6-2 maintains Active product status with higher inventory availability, ensuring long-term supply chain continuity.

Differences in time to trip (500 ms vs. 5 s) and post-trip resistance (30 mOhms vs. 50 mOhms) reflect manufacturing variations within the Multifuse® product line and do not affect functional compatibility for standard overcurrent protection applications. The MF-NSML175/6-2 is available in Tape & Reel packaging, supporting automated assembly processes.

Frequently Asked Questions (FAQ)

Q: Can MF-NSML175/6-2 be used as a direct replacement for MF-NSML175-2?

A: Yes. Both components are rated for 6V maximum voltage, 1.75A hold current, and 4.6A trip current. They share identical 1206 (3216 Metric) package dimensions and regulatory approvals. The MF-NSML175/6-2 is the active production equivalent.

Q: What are the differences between these two parts?

A: The primary differences are product status (Obsolete vs. Active), time to trip specification (500 ms vs. 5 s), initial resistance (5 mOhms vs. 6 mOhms), and post-trip resistance (30 mOhms vs. 50 mOhms). These variations are within normal manufacturing tolerances for polymeric PTC resettable fuses.

Q: Are there packaging differences?

A: The MF-NSML175-2 packaging format is not specified in the data. The MF-NSML175/6-2 is supplied in Tape & Reel (TR) format, which is standard for high-volume surface mount assembly.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both components carry cURus and TUV approvals, are ROHS3 Compliant, REACH Unaffected, and classified as EAR99 for export control purposes.

Q: What is the maximum thickness difference between these parts?

A: The MF-NSML175-2 has a maximum thickness of 0.024" (0.60mm), while the MF-NSML175/6-2 is 0.028" (0.70mm). This 0.004" (0.10mm) difference must be evaluated for PCB assembly clearance in space-constrained applications.