MF-S175SS-0 Equivalent & Substitute Parts

Part Overview

The MF-S175SS-0 is a Polymeric PTC Resettable Fuse manufactured by Bourns Inc. as part of the Multifuse® MF-S series. This component is rated for 15V maximum voltage with a 1.75A hold current and 3.8A trip current, designed for overcurrent protection in electronic circuits. The part is currently listed as Obsolete, making identification of suitable substitutes essential for ongoing design support and component procurement.

Substiute Parts

MF-S175SS-0

Bourns Inc.In Stock: 956MF-S175SS-0 Datasheet

Current PartRFQ

MF-S175

Bourns Inc.In Stock: 7154MF-S175 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for PTC resettable fuses is determined by electrical and mechanical compatibility across the following critical parameters:

Electrical Parameters: Maximum voltage rating, hold current (Ih), trip current (It), maximum current capacity, and time to trip must match or exceed the original specification to ensure equivalent protection characteristics.

Mechanical Parameters: Package type (Strap configuration), physical dimensions, and mounting method must be compatible with the existing circuit board layout and assembly process.

Compliance Parameters: RoHS status and regulatory approvals (cURus, TUV) ensure the substitute meets the same environmental and safety standards as the original component.

Product Status: Active status substitutes are preferred for long-term availability and supply chain reliability.

Parameter Comparison

Engineering Selection Recommendations

The MF-S175 is a direct electrical and mechanical equivalent to the MF-S175SS-0. Both components share identical electrical specifications across voltage, current, resistance, and thermal characteristics. The primary distinction is product status: MF-S175SS-0 is Obsolete while MF-S175 maintains Active status.

For new designs and ongoing production, MF-S175 is the appropriate selection. Both parts carry identical regulatory approvals (cURus, TUV) and RoHS3 compliance, ensuring equivalent safety and environmental standards. The Strap package configuration is identical, supporting direct mechanical substitution in existing circuit board layouts.

Frequently Asked Questions (FAQ)

Q: Can MF-S175 replace MF-S175SS-0 in existing designs?

A: Yes. MF-S175 is electrically and mechanically equivalent. All critical parameters—voltage rating, hold current, trip current, resistance characteristics, and operating temperature range—are identical. The Strap package configuration supports direct substitution.

Q: What is the primary reason to switch from MF-S175SS-0 to MF-S175?

A: MF-S175SS-0 is Obsolete, while MF-S175 is Active. Active status ensures continued availability, supply chain reliability, and manufacturer support for long-term production requirements.

Q: Are there any compliance differences between these parts?

A: No. Both components carry identical regulatory approvals (cURus, TUV) and ROHS3 compliance status, meeting the same environmental and safety standards.

Q: Do the physical dimensions differ between these parts?

A: The length dimension differs slightly (MF-S175SS-0: 0.866" vs. MF-S175: 0.827"), but both maintain the same Strap package type and width (0.199"). This minor dimensional variation does not affect mechanical compatibility in standard circuit board layouts.

Q: What inventory considerations apply to this substitution?

A: MF-S175SS-0 has 887 pieces in stock (Obsolete status). MF-S175 has 7115 pieces in stock (Active status), providing superior long-term availability for ongoing procurement needs.