Equivalent & Substitute Parts for 5HFP 250-R

Part Overview

The 5HFP 250-R is a 250 mA, 250 V AC/DC ceramic cartridge fuse manufactured by Bel Fuse Inc. in a 5mm x 20mm axial through-hole package with fast-blow response characteristics. This part is classified as obsolete, making identification of equivalent substitutes necessary for ongoing design support and component procurement. The fuse is designed for general-purpose circuit protection applications requiring fast response to overcurrent conditions.

Substiute Parts

5HFP 250-R

Bel Fuse Inc.In Stock: 9215HFP 250-R Datasheet

Current PartRFQ

0216.250MRET1P

Littelfuse Inc.In Stock: 10670216.250MRET1P Datasheet

DirectRFQ

0216.250MXEP

Littelfuse Inc.In Stock: 56400216.250MXEP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 5HFP 250-R is based on the following critical parameters that must remain constant:

• Current Rating: 250 mA
• Voltage Rating (AC): 250 V
• Fuse Type: Cartridge, Ceramic
• Response Time: Fast Blow
• Mounting Type: Through Hole
• Breaking Capacity @ Rated Voltage: 1.5 kA
• Operating Temperature Range: -55°C to 125°C
• RoHS Compliance: ROHS3 Compliant

The substitute parts identified (0216.250MRET1P and 0216.250MXEP, both from Littelfuse Inc., Series 216) meet all critical electrical and mechanical parameters. Both substitutes are active products with current manufacturing status, providing long-term availability compared to the obsolete 5HFP 250-R. The primary differences between substitutes relate to packaging format (Tape & Reel versus Bulk) and minor dimensional variations within acceptable mechanical tolerances.

Parameter Comparison

Engineering Selection Recommendations

Both Littelfuse substitutes (0216.250MRET1P and 0216.250MXEP) are qualified replacements for the obsolete 5HFP 250-R based on electrical equivalence and regulatory compliance. The Littelfuse parts carry active product status, ensuring continued availability and manufacturing support.

Selection between the two Littelfuse options depends on procurement requirements:

• 0216.250MRET1P: Supplied in Tape & Reel format, suitable for automated assembly processes and high-volume production environments.
• 0216.250MXEP: Supplied in Bulk format, suitable for manual assembly, repair, and lower-volume applications.

Both parts maintain identical electrical characteristics, approval certifications (CCC, CE, CSA, SEMKO, UR, VDE), and operational specifications. The choice between them is driven by manufacturing process requirements rather than technical performance differences.

Frequently Asked Questions (FAQ)

Q: Can 0216.250MRET1P and 0216.250MXEP be used interchangeably with the 5HFP 250-R?

A: Yes. Both Littelfuse parts meet all critical electrical and mechanical parameters: 250 mA current rating, 250 V AC voltage rating, fast-blow response, 1.5 kA breaking capacity, and identical operating temperature range. The parts are mechanically compatible with through-hole PCB mounting.

Q: What is the difference between 0216.250MRET1P and 0216.250MXEP?

A: The primary difference is packaging format. 0216.250MRET1P is supplied in Tape & Reel format for automated pick-and-place assembly, while 0216.250MXEP is supplied in Bulk format. Electrical specifications and performance are identical.

Q: Are there dimensional differences between the 5HFP 250-R and the Littelfuse substitutes?

A: Minor dimensional variations exist. The 5HFP 250-R measures 0.217" diameter x 0.827" length (5.50mm x 21.00mm), while the Littelfuse parts measure 0.236" diameter x 0.886" length (6.00mm x 22.50mm). These variations remain within acceptable mechanical tolerances for standard through-hole fuse holders.

Q: Do the substitute parts carry the same regulatory certifications?

A: The Littelfuse substitutes carry expanded certifications (CCC, CE, CSA, SEMKO, UR, VDE) compared to the 5HFP 250-R (CCC, CE, CSA, cULus). Both meet ROHS3 compliance and REACH requirements.

Q: What is the melting I²t difference between the parts?

A: The 5HFP 250-R has a melting I²t of 0.028, while the Littelfuse substitutes have a melting I²t of 0.00891. This difference reflects manufacturing variations between suppliers but does not affect functional equivalence for the specified 250 mA, 250 V application.