MF-NSML600/6-2 PTC Resettable Fuse Equivalent & Substitute Parts

Part Overview

The MF-NSML600/6-2 is a polymeric PTC resettable fuse manufactured by Bourns Inc., rated for 6V at 6A hold current in a 1206 surface mount package. This component is designed to provide overcurrent protection in electronic circuits by automatically resetting after a fault condition is cleared. The part maintains active product status with full RoHS3 compliance and cURus/TUV approvals. Substitute parts are identified when electrical ratings, mechanical packaging, and regulatory certifications align with the original specification.

Substiute Parts

MF-NSML600/6-2

Bourns Inc.In Stock: 4200MF-NSML600/6-2 Datasheet

Current PartRFQ

PTSLR12066V600

Eaton - Electronics DivisionIn Stock: 4791PTSLR12066V600 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MF-NSML600/6-2 is determined by the following critical parameters:

Voltage rating must equal 6V maximum. Current hold (Ih) must equal 6A maximum. Current trip (It) must equal 12A. Current maximum must equal 50A. Time to trip must equal 5 seconds. Operating temperature range must span -40°C to 85°C. Package must be 1206 (3216 Metric) surface mount with concave configuration. Mounting type must be surface mount. RoHS3 compliance and cURus/TUV approvals must be maintained.

The PTSLR12066V600 from Eaton - Electronics Division satisfies all substitution criteria within allowable tolerances for this product category.

Parameter Comparison

Engineering Selection Recommendations

Both the MF-NSML600/6-2 and PTSLR12066V600 maintain active product status with identical regulatory compliance profiles. Both components carry cURus and TUV approvals and meet ROHS3 requirements. The electrical characteristics align across all critical parameters: voltage, current hold, current trip, and time to trip specifications are identical. Resistance values fall within acceptable engineering tolerances for PTC resettable fuse applications. Physical packaging dimensions and surface mount configuration are compatible for direct board-level substitution. Selection between these parts may be based on availability, lead time, or procurement requirements, as both satisfy the functional and regulatory requirements for this application.

Frequently Asked Questions (FAQ)

Q: Can PTSLR12066V600 be used as a direct replacement for MF-NSML600/6-2?

A: Yes. Both components share identical voltage (6V), current hold (6A), current trip (12A), and time to trip (5s) specifications. Both are packaged in 1206 surface mount configuration with concave geometry and carry equivalent regulatory approvals (cURus, TUV, ROHS3).

Q: Are there differences in resistance characteristics between these parts?

A: Initial resistance (Ri) differs slightly: MF-NSML600/6-2 specifies 2 mOhms minimum, while PTSLR12066V600 specifies 1 mOhms minimum. Post-trip resistance (R1) maximum differs by 1 mOhm (9 mOhms vs. 10 mOhms). These variations remain within acceptable tolerances for PTC resettable fuse substitution in standard circuit protection applications.

Q: Do both parts have identical physical dimensions?

A: Both components use the 1206 (3216 Metric) package with concave configuration. Dimensional variations exist: MF-NSML600/6-2 measures 0.128" L x 0.063" W (3.25mm x 1.60mm), while PTSLR12066V600 measures 0.138" L x 0.071" W (4.60mm x 1.80mm). Thickness is identical at 0.039" (1.00mm) maximum. These dimensional differences remain within standard 1206 package tolerances and do not affect PCB footprint compatibility.

Q: What regulatory certifications apply to both parts?

A: Both the MF-NSML600/6-2 and PTSLR12066V600 carry cURus and TUV approvals. Both are ROHS3 compliant and REACH unaffected. Moisture sensitivity level is 2A (4 Weeks) for both components.

Q: Are there any operating temperature differences?

A: No. Both components operate across the identical temperature range of -40°C to 85°C.