Bourns MF-PSML110/6-2 PTC Resettable Fuse Equivalent & Substitute Parts

Part Overview

The Bourns MF-PSML110/6-2 is a polymeric PTC resettable fuse rated at 6V, 1.1A hold current, housed in a 0805 (2012 Metric) surface mount package. This component is classified as Active product status and is designed for overcurrent protection in electronic circuits. Alternative models may be required due to inventory constraints, voltage rating requirements, or specific application needs where higher voltage ratings or alternative manufacturer sourcing is necessary.

Substiute Parts

MF-PSML110/6-2

Bourns Inc.In Stock: 971MF-PSML110/6-2 Datasheet

Current PartRFQ

MF-PSML110/12-2

Bourns Inc.In Stock: 9427MF-PSML110/12-2 Datasheet

UpgradeRFQ

PTSLR08056V110

Eaton - Electronics DivisionIn Stock: 18185PTSLR08056V110 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MF-PSML110/6-2 is determined by the following critical parameters:

Primary Substitution Criteria:

• Current - Hold (Ih): Must be 1.1 A
• Package / Case: Must be 0805 (2012 Metric), Concave
• Mounting Type: Must be Surface Mount
• Operating Temperature: Must support -40°C ~ 85°C range
• RoHS Status: Must be ROHS3 Compliant

Secondary Compatibility Parameters:

• Voltage - Max: Can be equal or higher than 6V
• Current - Trip (It): Acceptable range 1.8 A to 2.2 A
• Resistance - Initial (Ri): Acceptable range 30 mOhms minimum
• Resistance - Post Trip (R1): Acceptable range up to 210 mOhms

Two substitute parts meet these criteria: the Bourns MF-PSML110/12-2 (upgrade option with higher voltage rating) and the Eaton PTSLR08056V110 (equivalent voltage rating, alternative manufacturer).

Parameter Comparison

Engineering Selection Recommendations

MF-PSML110/12-2 (Bourns Inc.) - Upgrade Option

The MF-PSML110/12-2 is a direct functional substitute with identical hold current (1.1 A), package dimensions, and thermal characteristics. The primary difference is the elevated maximum voltage rating of 12V compared to 6V on the main part. This substitute is suitable for applications where the circuit voltage exceeds 6V or where higher voltage margin is required. Both parts share identical approval agencies (cURus, TUV) with the upgrade offering additional cUL certification. Both maintain ROHS3 compliance and identical operating temperature ranges. Inventory availability is significantly higher for this substitute (9400 Pcs vs. 879 Pcs).

PTSLR08056V110 (Eaton - Electronics Division) - Equivalent Option

The PTSLR08056V110 provides electrical equivalence at the same 6V maximum voltage rating and 1.1 A hold current. Physical dimensions are within acceptable tolerance (2.10mm length vs. 2.15mm). The trip current is specified at 1.8 A compared to 2.2 A on the main part, and post-trip resistance is lower at 130 mOhms maximum versus 210 mOhms. This substitute is manufactured by Eaton and carries identical approval certifications (cURus, TUV) with ROHS3 compliance. Inventory availability is substantially higher (18154 Pcs). This option is appropriate for applications where alternative manufacturer sourcing is acceptable and the lower post-trip resistance characteristic is compatible with circuit requirements.

Frequently Asked Questions (FAQ)

Q: Can the MF-PSML110/12-2 be used as a direct replacement for the MF-PSML110/6-2?

A: Yes. The MF-PSML110/12-2 maintains identical hold current (1.1 A), package form factor (0805 Concave), and thermal operating range (-40°C to 85°C). The 12V maximum voltage rating is backward compatible with 6V circuits. No circuit modifications are required.

Q: What is the difference between the Bourns and Eaton substitutes?

A: Both maintain the same 6V voltage rating and 1.1 A hold current. The Eaton PTSLR08056V110 has a lower trip current specification (1.8 A vs. 2.2 A) and lower post-trip resistance (130 mOhms vs. 210 mOhms maximum). Physical dimensions are within tolerance. Both are ROHS3 compliant with equivalent certifications.

Q: Are all three parts physically interchangeable?

A: Yes. All three parts use the 0805 (2012 Metric) Concave package with identical thickness (0.028" / 0.70mm). Length dimensions are 2.15mm (Bourns parts) and 2.10mm (Eaton part), which is within standard PCB pad tolerance for surface mount assembly.

Q: Which substitute should I select for new designs?

A: Selection depends on circuit voltage requirements and manufacturer preference. For circuits operating above 6V, use MF-PSML110/12-2. For 6V circuits with preference for alternative sourcing, use PTSLR08056V110. Both are Active status products with full compliance certifications.

Q: Do these substitutes have different moisture sensitivity levels?

A: The MF-PSML110/6-2 and MF-PSML110/12-2 are both rated MSL 2A (4 Weeks). The PTSLR08056V110 is also rated MSL 2A (4 Weeks). Handling and storage requirements are identical across all three parts.