PFMU.035.2 Equivalent & Substitute Parts

Part Overview

The PFMU.035.2 is a Polymeric PTC Resettable Fuse manufactured by SCHURTER Inc., rated for 6V maximum voltage with a 350 mA hold current. This component is classified as Obsolete, making identification of suitable substitute parts essential for ongoing design support and procurement. The PFMU series has been superseded by the PFUF series, which maintains electrical equivalence while offering improved availability and active product status.

Substiute Parts

PFMU.035.2

SCHURTER Inc.In Stock: 885PFMU.035.2 Datasheet

Current PartRFQ

PFUF.035.2

SCHURTER Inc.In Stock: 3476PFUF.035.2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PFMU.035.2 is determined by strict equivalence across the following critical parameters:

• Voltage rating: 6V maximum
• Hold current (Ih): 350 mA maximum
• Trip current (It): 750 mA
• Time to trip: 200 ms
• Initial resistance (Ri): 200 mOhms minimum
• Post-trip resistance (R1): 1.3 Ohms maximum
• Operating temperature range: -40°C to 85°C
• Mounting type: Surface Mount
• Package form factor: 1210 (3225 Metric)
• Component type: Polymeric PTC resettable fuse

The PFUF.035.2 qualifies as a direct substitute, maintaining all electrical specifications while offering active product status and improved packaging options.

Parameter Comparison

Engineering Selection Recommendations

The PFUF.035.2 is the direct equivalent for the obsolete PFMU.035.2. Both components maintain identical electrical characteristics across all critical parameters: voltage rating, hold current, trip current, time to trip, and resistance specifications. The PFUF.035.2 carries Active product status, ensuring long-term availability and supply chain continuity.

Both parts maintain ROHS3 compliance and REACH unaffected status. The PFUF.035.2 carries cURus and TUV certifications, while the PFMU.035.2 includes CSA certification in addition to TUV. For applications requiring CSA certification specifically, compatibility should be confirmed with the design authority.

The PFUF.035.2 is available in Tape & Reel packaging with 3405 units in stock, compared to the PFMU.035.2 with 817 units available. The concave package variant of the PFUF.035.2 represents a minor mechanical refinement with no impact on electrical performance.

Frequently Asked Questions (FAQ)

Q: Can PFUF.035.2 replace PFMU.035.2 in existing designs?

A: Yes. The PFUF.035.2 maintains electrical equivalence across all specified parameters: 6V voltage rating, 350 mA hold current, 750 mA trip current, 200 ms trip time, and identical resistance specifications. Both components are Surface Mount 1210 (3225 Metric) packages and are ROHS3 compliant.

Q: What is the difference between PFMU.035.2 and PFUF.035.2?

A: The primary differences are product status and packaging format. PFMU.035.2 is Obsolete; PFUF.035.2 is Active. PFUF.035.2 features a concave package variant and is supplied in Tape & Reel format. All electrical specifications are identical.

Q: Are there certification differences between these parts?

A: PFMU.035.2 carries CSA, TUV, and UL approvals. PFUF.035.2 carries cURus and TUV approvals. Applications requiring CSA or UL certification should confirm compatibility with design requirements.

Q: What packaging options are available for the substitute?

A: PFUF.035.2 is supplied in Tape & Reel (TR) packaging, suitable for automated assembly processes. The concave package design is a mechanical refinement with no electrical impact.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both PFMU.035.2 and PFUF.035.2 are ROHS3 compliant and REACH unaffected.