Littelfuse 0216.500MXP Ceramic Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0216.500MXP is a 500 mA ceramic cartridge fuse rated for 250 V AC/DC operation in a 5mm x 20mm form factor. This fast-blow fuse is designed for applications requiring overcurrent protection in industrial and commercial equipment. The part is active in production with full compliance to international safety standards including CCC, CE, CSA, SEMKO, UR, and VDE certifications. Equivalent and substitute parts are identified when component availability is limited, supply chain disruptions occur, or design flexibility permits alternative manufacturers meeting identical electrical and mechanical specifications.

Substiute Parts

0216.500MXP

Littelfuse Inc.In Stock: 69460216.500MXP Datasheet

Current PartRFQ

0216.500HXP

Littelfuse Inc.In Stock: 11600216.500HXP Datasheet

DirectRFQ

0001.1001

SCHURTER Inc.In Stock: 12740001.1001 Datasheet

DirectRFQ

5HF 500-R

Bel Fuse Inc.In Stock: 38405HF 500-R Datasheet

DirectRFQ

BK/S501-500-R

Eaton - Electronics DivisionIn Stock: 1165BK/S501-500-R Datasheet

DirectRFQ

S501-500-R

Eaton - Electronics DivisionIn Stock: 1033S501-500-R Datasheet

MFR RecommendedRFQ

FCD-500MA

OptiFuseIn Stock: 2921FCD-500MA Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 0216.500MXP is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Current Rating: 500 mA (exact match required)
• Voltage Rating (AC): 250 V (exact match required)
• Package / Case: 5mm x 20mm (exact match required)
• Fuse Type: Cartridge, Ceramic (exact match required)
• Response Time: Fast Blow (exact match required)
• Breaking Capacity @ Rated Voltage: 1.5 kA (exact match required)
• Mounting Type: Requires Holder (exact match required)

Acceptable Variation Parameters:

• Melting I²t: Variation permitted within thermal design tolerance
• DC Cold Resistance: Variation permitted within electrical design tolerance
• Approval Agency: Subset of certifications acceptable if core safety standards present

All identified substitute parts meet these mandatory parameters and are therefore electrically and mechanically interchangeable with the 0216.500MXP in applications designed for this specification.

Parameter Comparison

Engineering Selection Recommendations

All identified substitute parts are active production components with ROHS3 compliance and international safety certifications. Selection among equivalent parts should be based on:

Littelfuse 0216.500HXP: Direct manufacturer equivalent from Littelfuse Inc. Identical electrical and thermal characteristics to the 0216.500MXP. Recommended for applications where manufacturer continuity is required.

SCHURTER 0001.1001: Certified to CCC, cURus, KC, and VDE standards. Suitable for applications where SCHURTER certification portfolio meets regulatory requirements. Lower melting I²t value (0.098) indicates faster thermal response.

Bel Fuse 5HF 500-R: Certified to CCC, CE, CSA, and cURus standards. Melting I²t of 0.16 provides thermal characteristics closely aligned with the 0216.500MXP. Suitable for applications requiring CE marking.

Eaton BK/S501-500-R and S501-500-R: Both certified to BSI, CCC, CSA, cURus, IMQ, SEMKO, and VDE standards. Significantly lower melting I²t (0.038) indicates faster thermal response compared to the 0216.500MXP. Recommended for applications where rapid fuse operation is required. S501-500-R is manufacturer-recommended equivalent.

OptiFuse FCD-500MA: Certified to IEC 60127 standard. Lowest melting I²t value (0.0309) among all substitutes, indicating fastest thermal response. Suitable for precision overcurrent protection applications. Voltage rating extends to 250 V DC.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts interchangeably with the 0216.500MXP?

A: Yes. All identified substitute parts meet the mandatory electrical and mechanical parameters: 500 mA current rating, 250 V AC voltage rating, 5mm x 20mm package, fast-blow response, 1.5 kA breaking capacity, and cartridge ceramic construction. Physical and electrical interchangeability is confirmed.

Q: What is the significance of different melting I²t values among the substitutes?

A: Melting I²t determines the thermal energy required to melt the fuse element. Lower values indicate faster thermal response to overcurrent conditions. The 0216.500MXP has a melting I²t of 0.165. Eaton parts (0.038) and OptiFuse FCD-500MA (0.0309) respond faster, while SCHURTER (0.098) and Bel Fuse (0.16) provide similar or slightly faster response. Selection depends on application thermal requirements.

Q: Are all substitute parts certified to the same safety standards?

A: No. While all parts carry ROHS3 compliance, certification agencies vary. The 0216.500MXP is certified to CCC, CE, CSA, SEMKO, UR, and VDE. Eaton parts offer the broadest certification portfolio (BSI, CCC, CSA, cURus, IMQ, SEMKO, VDE). Verify that the substitute part's certification meets your application's regulatory requirements.

Q: Does the 5mm x 20mm package dimension vary among substitutes?

A: Nominal package dimensions are 5mm x 20mm across all parts. Minor dimensional variations exist: Bel Fuse 5HF 500-R is specified as 0.201" diameter (5.10mm) versus 0.205" (5.20mm) for other parts. These variations are within standard manufacturing tolerance and do not affect holder compatibility.

Q: Which substitute is recommended as the primary alternative?

A: Eaton S501-500-R is designated as the manufacturer-recommended equivalent. It provides the broadest international certification coverage and is actively stocked. Littelfuse 0216.500HXP is recommended if manufacturer continuity with Littelfuse is required.

Q: Can I use FCD-500MA in applications requiring DC voltage protection?

A: FCD-500MA is rated for both 250 V AC and 250 V DC operation, providing extended voltage protection capability compared to the 0216.500MXP, which is specified for AC/DC without separate DC rating. This makes FCD-500MA suitable for DC applications within the 250 V rating.