5SFP 160 Equivalent & Substitute Parts

Part Overview

The 5SFP 160 is a 160 mA, 250 V AC/DC fast-blow glass cartridge fuse with a 5mm x 20mm axial form factor, manufactured by Bel Fuse Inc. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system maintenance and new design implementations. Substitute parts must maintain identical electrical ratings, response characteristics, and mechanical compatibility to ensure proper circuit protection without modification to existing installations.

Substiute Parts

5SFP 160

Bel Fuse Inc.In Stock: 7035SFP 160 Datasheet

Current PartRFQ

0034.1508.PT

SCHURTER Inc.In Stock: 37810034.1508.PT Datasheet

DirectRFQ

0217.160MXEP

Littelfuse Inc.In Stock: 8530217.160MXEP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 5SFP 160 are qualified based on the following mandatory electrical and mechanical parameters:

• Current Rating: 160 mA (exact match required)
• Voltage Rating (AC): 250 V (exact match required)
• Fuse Type: Cartridge, Glass (exact match required)
• Response Time: Fast Blow (exact match required)
• Package / Case: 5mm x 20mm (Axial) (exact match required)
• Mounting Type: Through Hole (exact match required)
• Breaking Capacity @ Rated Voltage: 35 A (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (exact match required)

Both identified substitute parts meet all mandatory parameters and are therefore electrically and mechanically interchangeable with the 5SFP 160.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts are functionally equivalent to the 5SFP 160 and meet all mandatory electrical and mechanical parameters. Selection between alternatives should be based on the following factors:

0034.1508.PT (SCHURTER Inc.): Active product status with ROHS3 compliance. Carries cURus certification. Melting I²t value of 0.0113 is lower than the original part, indicating slightly faster thermal response. Physical dimensions show minor variation (5.40mm x 22.50mm versus 5.50mm x 21.00mm), which remains within typical through-hole mounting tolerances.

0217.160MXEP (Littelfuse Inc.): Active product status with ROHS3 compliance. Carries comprehensive certification including CCC, CE, CSA, K-MARK, SEMKO, UL, and VDE. Melting I²t value of 0.01 is the lowest among the three parts. Physical dimensions show the largest variation (6.00mm x 22.50mm), which may require verification against specific PCB footprint constraints. DC cold resistance of 2.525 Ohms closely matches the original specification.

For applications requiring strict RoHS compliance or maximum certification coverage, either substitute part is suitable. Physical dimensions should be verified against PCB design specifications prior to implementation.

Frequently Asked Questions (FAQ)

Q: Can the 0034.1508.PT and 0217.160MXEP be used interchangeably with the 5SFP 160?

A: Yes. Both parts meet all mandatory electrical parameters: 160 mA current rating, 250 V AC voltage rating, fast-blow response, 35 A breaking capacity, and -55°C to 125°C operating temperature range. All three parts use identical 5mm x 20mm axial cartridge form factors with through-hole mounting.

Q: What is the significance of the different Melting I²t values?

A: Melting I²t represents the thermal energy required to melt the fuse element. The 5SFP 160 specifies 0.017, while substitutes range from 0.01 to 0.0113. These variations remain within the fast-blow classification and do not affect functional interchangeability for the specified 160 mA rating.

Q: Are there physical dimension differences that affect PCB compatibility?

A: Minor variations exist. The 5SFP 160 measures 5.50mm x 21.00mm, the SCHURTER part measures 5.40mm x 22.50mm, and the Littelfuse part measures 6.00mm x 22.50mm. These differences fall within standard through-hole mounting tolerances but should be verified against specific PCB footprint designs, particularly for the Littelfuse variant with its 6.00mm diameter.

Q: Which substitute part offers the best compliance profile?

A: The 0217.160MXEP (Littelfuse) provides the broadest certification coverage with CCC, CE, CSA, K-MARK, SEMKO, UL, and VDE approvals. Both substitutes are ROHS3 compliant, whereas the original 5SFP 160 is RoHS non-compliant.

Q: Can I use these parts in new designs, or only as replacements for obsolete inventory?

A: Both substitute parts carry active product status and are suitable for new designs. The SCHURTER 0034.1508.PT and Littelfuse 0217.160MXEP are currently manufactured and stocked, making them appropriate for both replacement and new implementation scenarios.