Equivalent & Substitute Parts for 5HTP 315-R Ceramic Fuse

Part Overview

The 5HTP 315-R is a ceramic cartridge fuse manufactured by Bel Fuse Inc., rated for 315 mA at 250 V AC/DC with slow-blow response characteristics. This component is designed for applications requiring overcurrent protection in a compact 5mm x 20mm form factor. The part maintains active product status with full RoHS3 compliance and multiple international certifications (CCC, CE, CSA, cULus). Alternative equivalent parts are available to support supply chain flexibility and procurement requirements.

Substiute Parts

5HTP 315-R

Bel Fuse Inc.In Stock: 21175HTP 315-R Datasheet

Current PartRFQ

5HT 315-R

Bel Fuse Inc.In Stock: 19905HT 315-R Datasheet

Parametric EquivalentRFQ

0215.315MXEP

Littelfuse Inc.In Stock: 21760215.315MXEP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 5HTP 315-R is determined by the following critical parameters:

• Current Rating: 315 mA (exact match required)
• Voltage Rating: 250 V AC (exact match required)
• Fuse Type: Cartridge, Ceramic (exact match required)
• Response Time: Slow Blow (exact match required)
• Breaking Capacity: 1.5 kA (exact match required)
• Operating Temperature: -55°C ~ 125°C (exact match required)

Two equivalent parts meet these criteria: the 5HT 315-R (Bel Fuse Inc.) and the 0215.315MXEP (Littelfuse Inc.). Both maintain identical electrical performance specifications and thermal operating ranges. Physical dimensions and mounting requirements differ slightly between manufacturers but remain within the 5mm x 20mm cartridge standard.

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain active product status with full RoHS3 compliance and international regulatory approvals. The 5HTP 315-R and 5HT 315-R are both manufactured by Bel Fuse Inc. and share identical electrical specifications, with the primary difference being the melting I²t characteristic (0.18 versus 0.22). The 0215.315MXEP from Littelfuse Inc. provides an alternative source with equivalent electrical performance but exhibits different thermal characteristics (melting I²t of 0.975) and lower DC cold resistance (0.88 Ohms versus 2.08 Ohms).

Selection between these parts should be based on supply availability, procurement lead times, and specific application requirements regarding thermal response characteristics. All three parts satisfy the core electrical and safety requirements for 315 mA, 250 V AC/DC ceramic cartridge fuse applications.

Frequently Asked Questions (FAQ)

Q: Can the 5HT 315-R be used as a direct replacement for the 5HTP 315-R?

A: Yes. Both parts share identical current rating (315 mA), voltage rating (250 V AC), fuse type (Cartridge, Ceramic), response time (Slow Blow), breaking capacity (1.5 kA), and operating temperature range (-55°C ~ 125°C). The melting I²t values differ slightly (0.22 versus 0.18), but both parts maintain the same electrical classification.

Q: What are the key differences between the Littelfuse 0215.315MXEP and the Bel Fuse alternatives?

A: The 0215.315MXEP maintains identical current, voltage, fuse type, response time, and breaking capacity specifications. However, it exhibits a higher melting I²t value (0.975) and lower DC cold resistance (0.88 Ohms) compared to the Bel Fuse parts. Physical dimensions are also slightly different (6.00mm x 22.50mm versus 5.10mm x 20.00mm).

Q: Are all three parts certified for the same regulatory standards?

A: The 5HTP 315-R carries CCC, CE, CSA, and cULus certifications. The 5HT 315-R carries CCC, CSA, and cURus certifications. The 0215.315MXEP carries CE, SEMKO, UL, and VDE certifications. All three parts are RoHS3 compliant and REACH unaffected.

Q: Does mounting type affect substitution compatibility?

A: The 5HTP 315-R and 5HT 315-R both require a holder for installation. The 0215.315MXEP is designed for through-hole mounting. Mounting compatibility depends on the specific application circuit design and holder availability.

Q: Can these parts be used interchangeably in all applications?

A: Substitution is valid only when the application circuit accommodates the specific mounting type and thermal response characteristics of the selected part. The melting I²t and DC cold resistance variations should be evaluated against application-specific requirements.