Littelfuse 0253010.M PICO® II 253 Board Mount Fuse

Part Overview

The Littelfuse 0253010.M is a 10A 125VAC/VDC board mount fuse designed for through-hole axial mounting applications. This component is classified as discontinued at DiGi Electronics, necessitating identification of active equivalent alternatives to maintain supply chain continuity for new designs and production requirements. The part operates across a temperature range of -55°C to 125°C and meets multiple international approval standards including CSA, QPL, TUV, and UR certifications.

Substiute Parts

0253010.M

Littelfuse Inc.In Stock: 7860253010.M Datasheet

Current PartRFQ

0253010.V

Littelfuse Inc.In Stock: 11060253010.V Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 0253010.V is a parametric equivalent within the PICO® II 253 series. Substitution is valid based on identical electrical and mechanical specifications: both parts maintain 10A current rating at 125VAC/125VDC, fast blow response time, identical breaking capacity (50A AC, 300A DC), matching melting I²t value of 25.5, and identical physical dimensions (0.103" Dia x 0.280" L). Both parts feature through-hole axial mounting, equivalent DC cold resistance of 0.00705 Ohms, and identical approval certifications (CSA, QPL, TUV, UR). The primary distinction is product status and packaging: 0253010.M is discontinued while 0253010.V remains active, with 0253010.V supplied in bulk packaging versus the original part's standard packaging configuration.

Parameter Comparison

Engineering Selection Recommendations

The Littelfuse 0253010.V is the direct active equivalent for the discontinued 0253010.M. Both parts are manufactured by Littelfuse Inc. within the same PICO® II 253 series and share identical electrical performance characteristics, mechanical dimensions, and regulatory compliance certifications. The 0253010.V maintains active product status with confirmed inventory availability, making it the appropriate selection for new designs and production continuity. Both parts satisfy CSA, QPL, TUV, and UR approval requirements and maintain ROHS3 compliance. The packaging difference (bulk versus standard) does not affect electrical or mechanical compatibility and is a procurement consideration only.

Frequently Asked Questions (FAQ)

Q: Can 0253010.V directly replace 0253010.M in existing designs? A: Yes. Both parts are electrically and mechanically identical with matching current ratings (10A), voltage ratings (125VAC/125VDC), response time (fast blow), physical dimensions (0.103" Dia x 0.280" L), and all electrical parameters including breaking capacity and melting I²t values.

Q: What is the difference between these two part numbers? A: The primary difference is product status and packaging. 0253010.M is discontinued while 0253010.V remains active. 0253010.V is supplied in bulk packaging. All electrical and mechanical specifications are identical.

Q: Are the approval certifications the same? A: Yes. Both parts carry identical certifications from CSA, QPL, TUV, and UR, and both meet ROHS3 compliance requirements.

Q: Does the bulk packaging of 0253010.V affect performance? A: No. Packaging configuration does not affect electrical performance or mechanical compatibility. The bulk packaging is a supply and handling consideration only.

Q: What are the critical parameters for substitution validity? A: Current rating (10A), voltage ratings (125VAC/125VDC), response time (fast blow), mounting type (through hole), physical dimensions (0.103" Dia x 0.280" L), and breaking capacity (50A AC, 300A DC) must remain identical for substitution.