5HTP 500-R Ceramic Fuse Equivalent & Substitute Parts

Part Overview

The 5HTP 500-R is a ceramic cartridge fuse manufactured by Bel Fuse Inc., rated for 500 mA at 250 V AC/DC with slow-blow response characteristics. This component is designed for applications requiring overcurrent protection in industrial and commercial equipment. The fuse operates across a temperature range of -55°C to 125°C and meets multiple international safety certifications including CCC, CE, CSA, and cULus. As an active product with robust inventory availability, substitute parts are identified for design flexibility, supply chain optimization, and application-specific mounting requirements.

Substiute Parts

5HTP 500-R

Bel Fuse Inc.In Stock: 21645HTP 500-R Datasheet

Current PartRFQ

5HT 500-R

Bel Fuse Inc.In Stock: 52705HT 500-R Datasheet

Parametric EquivalentRFQ

0215.500MXEP

Littelfuse Inc.In Stock: 20370215.500MXEP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 5HTP 500-R is determined by strict equivalence across the following critical parameters:

• Current Rating: 500 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 Range: -55°C to 125°C (exact match required)
• RoHS Compliance: ROHS3 Compliant (exact match required)

Two substitute parts meet these criteria: the 5HT 500-R (Bel Fuse Inc., parametric equivalent) and the 0215.500MXEP (Littelfuse Inc., direct manufacturer alternative). Both maintain identical electrical performance specifications and regulatory compliance. Differences in mounting type, physical dimensions, and DC cold resistance are secondary considerations that do not affect functional substitution within the specified electrical parameters.

Parameter Comparison

Engineering Selection Recommendations

All three fuse options maintain active product status and full regulatory compliance. The 5HT 500-R represents a direct parametric equivalent from the same manufacturer (Bel Fuse Inc.) with identical electrical characteristics and certifications. This option is optimal for applications where supply continuity from a single manufacturer is prioritized.

The 0215.500MXEP from Littelfuse Inc. provides an alternative from a different manufacturer while maintaining equivalent electrical performance and breaking capacity. This option is suitable for applications where multi-source qualification is required or where Littelfuse components are already integrated into the design. The Littelfuse part carries UL and VDE certifications in addition to CE and CSA, providing broader regulatory coverage in specific markets.

Selection between the Bel Fuse and Littelfuse options should be based on existing design qualification, supply chain strategy, and regional certification requirements. All three parts are suitable for direct substitution within the specified electrical parameters.

Frequently Asked Questions (FAQ)

Q: Can the 5HT 500-R be used as a direct replacement for the 5HTP 500-R?

A: Yes. Both parts are manufactured by Bel Fuse Inc. and share identical electrical specifications, current rating, voltage rating, response time, breaking capacity, and operating temperature range. The primary difference is the series designation (5HT versus 5HTP), which does not affect functional performance.

Q: What is the difference between the Bel Fuse and Littelfuse options?

A: The 5HT 500-R and 0215.500MXEP maintain equivalent electrical performance and breaking capacity. Differences include manufacturer, mounting type (Requires Holder versus Through Hole), physical dimensions (5.10mm x 20.00mm versus 6.00mm x 22.50mm), DC cold resistance (1.03 Ohms versus 1.1675 Ohms), and certification bodies. The Littelfuse part includes UL and VDE certifications.

Q: Are there any compatibility concerns with the 0215.500MXEP due to its larger physical dimensions?

A: The 0215.500MXEP has slightly larger dimensions (6.00mm x 22.50mm versus 5.10mm x 20.00mm) and is specified as Through Hole mounting, whereas the main part requires a holder. Physical space availability and mounting configuration must be evaluated for the specific application. Electrical performance remains equivalent.

Q: Does the difference in Melting I²t between the main part and the Littelfuse substitute affect substitution?

A: The Melting I²t values (0.46 versus 0.42) are within acceptable tolerance for ceramic fuse cartridges and do not prevent functional substitution. Both values support the same 500 mA current rating and slow-blow response characteristics.

Q: Which certifications should I prioritize for my application?

A: Selection depends on regional requirements and end-market standards. The 5HT 500-R carries CCC, CE, CSA, and cULus certifications. The 0215.500MXEP carries CE, CSA, SEMKO, UL, and VDE certifications. Verify that the selected part meets all applicable standards for your target market.