PFMF.160.2 Polymeric PTC Resettable Fuse Equivalent & Substitute Parts

Part Overview

The PFMF.160.2 is a polymeric PTC resettable fuse manufactured by SCHURTER Inc., rated at 8V with a 1.6A hold current. This surface mount component in 1812 (4532 Metric) package format is designed for overcurrent protection in electronic circuits. The part is currently active in production with 674 units in stock. Equivalent and substitute parts are identified to support procurement flexibility, supply chain continuity, and design optimization across compatible electrical and mechanical specifications.

Substiute Parts

PFMF.160.2

SCHURTER Inc.In Stock: 779PFMF.160.2 Datasheet

Current PartRFQ

MINISMDC160F-2

Littelfuse Inc.In Stock: 39939MINISMDC160F-2 Datasheet

DirectRFQ

MF-MSMF160-2

Bourns Inc.In Stock: 36499MF-MSMF160-2 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PFMF.160.2 are classified based on electrical and mechanical compatibility within the polymeric PTC resettable fuse category. The substitution logic is determined by the following critical parameters:

Electrical Compatibility Criteria:

• Voltage rating must equal or exceed the main part specification (8V minimum)
• Current hold (Ih) rating must match or exceed 1.6A
• Package and case format must be identical: 1812 (4532 Metric), Concave
• Surface mount mounting type requirement
• Operating temperature range must encompass -40°C ~ 85°C

Mechanical Compatibility Criteria:

• Physical dimensions must be compatible with 1812 (4532 Metric) footprint
• Thickness specifications must accommodate PCB assembly processes

Two substitute parts meet these criteria:

1. MF-MSMF160-2 (Bourns Inc.) — Parametric equivalent with identical electrical specifications to the main part
2. MINISMDC160F-2 (Littelfuse Inc.) — Direct manufacturer substitute with higher voltage rating (9V) and modified trip characteristics

Parameter Comparison

Engineering Selection Recommendations

MF-MSMF160-2 (Bourns Inc.) is a direct parametric equivalent to the PFMF.160.2. All electrical specifications, thermal characteristics, and mechanical dimensions are identical. Both parts carry identical voltage (8V), current hold (1.6A), trip current (2.8A), and time-to-trip (2s) ratings. Both are ROHS3 compliant and approved by cURus and TUV. The MF-MSMF160-2 carries AEC-Q200 automotive qualification and is available in higher inventory (36,400 units). This part is suitable for direct substitution in applications where the PFMF.160.2 is specified.

MINISMDC160F-2 (Littelfuse Inc.) is a direct manufacturer substitute with modified electrical characteristics. The voltage rating is increased to 9V, trip current is raised to 3.2A, and time-to-trip is reduced to 1s. Initial resistance is lower at 30 mOhms. The package footprint remains identical (1812 Concave), but thickness is reduced to 0.019" (0.48mm). This part is ROHS3 compliant and approved by CSA, TUV, and UL. The MINISMDC160F-2 is suitable for applications where higher voltage tolerance and faster trip response are acceptable design parameters.

All three parts are active products with current manufacturing status and full compliance certifications.

Frequently Asked Questions (FAQ)

Q: Can MF-MSMF160-2 be used as a direct replacement for PFMF.160.2?

A: Yes. The MF-MSMF160-2 is a parametric equivalent with identical electrical and mechanical specifications. Voltage, current hold, trip current, time-to-trip, resistance values, operating temperature, package format, and physical dimensions are all equivalent. Both parts are ROHS3 compliant and carry cURus and TUV approvals.

Q: What are the key differences between MINISMDC160F-2 and PFMF.160.2?

A: The MINISMDC160F-2 has a higher maximum voltage rating (9V vs. 8V), higher trip current (3.2A vs. 2.8A), faster trip time (1s vs. 2s), lower initial resistance (30 mOhms vs. 35 mOhms), and reduced thickness (0.019" vs. 0.033"). The package footprint and operating temperature range remain identical. These differences may affect circuit protection behavior and should be evaluated against application requirements.

Q: Are all three parts compatible with the same PCB footprint?

A: Yes. All three parts use the 1812 (4532 Metric) Concave package format with identical length (0.179") and width (0.128") dimensions. The MINISMDC160F-2 has a thinner profile (0.019" vs. 0.033"), which may provide assembly advantages but does not affect footprint compatibility.

Q: What certifications do these parts carry?

A: PFMF.160.2 and MF-MSMF160-2 are approved by cURus and TUV. MINISMDC160F-2 is approved by CSA, TUV, and UL. All three parts are ROHS3 compliant and carry EAR99 ECCN classification.

Q: Which part should be selected for new designs?

A: Selection depends on application requirements. For designs requiring identical electrical behavior to the original specification, use MF-MSMF160-2 or PFMF.160.2. For applications where higher voltage tolerance, faster trip response, and reduced thickness are beneficial, use MINISMDC160F-2. All three parts are active products with adequate inventory availability.