5HFP 315 Equivalent & Substitute Parts

Part Overview

The 5HFP 315 is a ceramic cartridge fuse manufactured by Bel Fuse Inc., rated for 315 mA at 250 V AC/DC with a fast-blow response characteristic. The fuse is housed in a 5mm x 20mm axial package and is designed for through-hole mounting applications. This part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system maintenance and new design implementations.

Substiute Parts

5HFP 315

Bel Fuse Inc.In Stock: 12095HFP 315 Datasheet

Current PartRFQ

0216.315MXEP

Littelfuse Inc.In Stock: 9340216.315MXEP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 5HFP 315 is determined by strict equivalence across the following electrical and mechanical parameters:

• Current Rating: 315 mA (exact match required)
• Voltage Rating (AC): 250 V (exact match required)
• Fuse Type: Cartridge, Ceramic (exact match required)
• Package / Case: 5mm x 20mm (Axial) (exact match required)
• Response Time: Fast Blow (exact match required)
• Mounting Type: Through Hole (exact match required)
• Breaking Capacity @ Rated Voltage: 1.5 kA (exact match required)
• Operating Temperature Range: -55°C to 125°C (exact match required)

The substitute part 0216.315MXEP from Littelfuse Inc. meets all specified electrical and mechanical criteria for direct substitution.

Parameter Comparison

Engineering Selection Recommendations

The 0216.315MXEP from Littelfuse Inc. is the direct functional equivalent for the obsolete 5HFP 315. Both parts share identical electrical ratings, response characteristics, and mechanical form factors. The substitute part carries active product status, ensuring continued availability and supply chain reliability.

The 0216.315MXEP provides enhanced regulatory compliance, including ROHS3 certification compared to the non-compliant status of the original part. Additional approval agencies (SEMKO, UR, VDE) are listed for the substitute, expanding its applicability across international markets and standards.

Physical dimensions show minor variation: the substitute measures 0.236" diameter x 0.886" length (6.00mm x 22.50mm) compared to the original 0.217" diameter x 0.827" length (5.50mm x 21.00mm). DC cold resistance differs at 1.85 Ohms for the substitute versus 0.76 Ohms for the original. These variations remain within acceptable tolerances for cartridge fuse applications and do not affect functional substitution.

Frequently Asked Questions (FAQ)

Q: Can the 0216.315MXEP be used as a direct replacement for the 5HFP 315?

A: Yes. Both parts meet identical electrical specifications (315 mA, 250 V AC, fast-blow response) and mechanical requirements (5mm x 20mm axial package, through-hole mounting). The substitute is functionally equivalent for circuit protection applications.

Q: What is the significance of the product status difference?

A: The 5HFP 315 is classified as obsolete, indicating discontinued manufacturing and limited availability. The 0216.315MXEP maintains active product status, ensuring reliable sourcing for replacement and new applications.

Q: How do the physical dimension variations affect installation?

A: The substitute part measures slightly larger (6.00mm x 22.50mm versus 5.50mm x 21.00mm). Verify that the circuit board layout and fuse holder accommodate the larger dimensions before installation. The axial through-hole mounting type remains unchanged.

Q: What is the impact of RoHS compliance differences?

A: The 5HFP 315 is RoHS non-compliant, while the 0216.315MXEP is ROHS3 compliant. For applications subject to RoHS regulations or environmental standards, the substitute part provides regulatory alignment. Existing systems using the original part are not affected by this difference.

Q: Are there differences in approval certifications?

A: Both parts carry CCC, CE, and CSA certifications. The substitute includes additional certifications (SEMKO, UR, VDE), providing broader international standards coverage. This does not restrict the use of either part in applications requiring the common certifications.