Equivalent & Substitute Parts for BK/S501-V-1-R

Part Overview

The BK/S501-V-1-R is a 1 A, 250 V AC/DC ceramic cartridge fuse manufactured by Eaton - Electronics Division. This fast-blow fuse is designed for through-hole mounting in a 5mm x 20mm axial package format. The part maintains active product status with 856 pieces currently in stock. Substitute parts are identified when equivalent electrical ratings, mechanical dimensions, and approval certifications align with the original specification, enabling direct replacement in circuit protection applications.

Substiute Parts

BK/S501-V-1-R

Eaton - Electronics DivisionIn Stock: 936BK/S501-V-1-R Datasheet

Current PartRFQ

0216001.MXEP

Littelfuse Inc.In Stock: 55870216001.MXEP Datasheet

DirectRFQ

5HFP 1-R

Bel Fuse Inc.In Stock: 30405HFP 1-R Datasheet

DirectRFQ

0216001.MXESPP

Littelfuse Inc.In Stock: 23080216001.MXESPP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the BK/S501-V-1-R are classified based on strict equivalence of electrical and mechanical parameters. The primary substitution criteria are:

Electrical Equivalence: Current rating of 1 A, voltage rating of 250 V AC, fast-blow response characteristic, and breaking capacity of 1.5 kA at rated voltage.

Mechanical Equivalence: Through-hole mounting type, ceramic cartridge fuse construction, and 5mm x 20mm axial package format.

Regulatory Compliance: Active product status and RoHS compliance status.

Parts are grouped as follows:

Direct Substitutes: Parts meeting all electrical and mechanical parameters with equivalent or superior approval agency certifications.

Similar Substitutes: Parts meeting all electrical and mechanical parameters with comparable approval certifications and operating temperature ranges.

Parameter Comparison

Engineering Selection Recommendations

0216001.MXEP (Littelfuse Inc., Series 216) is a direct substitute for the BK/S501-V-1-R. This part maintains identical electrical ratings, mechanical dimensions, and fast-blow response. The part carries expanded approval certifications including CCC, CE, CSA, KC, PSE, SEMKO, UL, and VDE. Operating temperature range of -55°C to 125°C is specified. Inventory availability is 5543 pieces. This part is suitable for direct replacement in applications requiring the original BK/S501-V-1-R specification.

5HFP 1-R (Bel Fuse Inc., Series 5HFP) is a direct substitute for the BK/S501-V-1-R. This part meets all electrical and mechanical requirements with identical current, voltage, and breaking capacity ratings. Approval certifications include CCC, CE, CSA, cULus, IMQ, PSE, SEMKO, and VDE. Operating temperature range is -55°C to 125°C. Inventory availability is 2962 pieces. Physical dimensions are 0.217" diameter x 0.827" length, closely matching the original specification.

0216001.MXESPP (Littelfuse Inc., Series 216SP) is a similar substitute for the BK/S501-V-1-R. This part maintains equivalent electrical ratings and fast-blow response with identical current and voltage specifications. Approval certifications include CE, CSA, CQC, KC, PSE, UR, and VDE. Operating temperature range is -55°C to 125°C. Physical dimensions are 0.205" diameter x 0.787" length, representing a compact variant within the 5mm x 20mm axial package category. Inventory availability is 2233 pieces.

Frequently Asked Questions (FAQ)

Q: Can 0216001.MXEP replace BK/S501-V-1-R in all applications?

A: Yes. The 0216001.MXEP meets all electrical parameters (1 A, 250 V AC, fast-blow, 1.5 kA breaking capacity) and mechanical specifications (5mm x 20mm axial, through-hole mounting, ceramic cartridge). Both parts carry equivalent or superior approval certifications.

Q: What is the difference between 0216001.MXEP and 0216001.MXESPP?

A: Both parts are manufactured by Littelfuse and share identical electrical ratings and response characteristics. The primary difference is physical dimension: 0216001.MXEP measures 0.228" diameter x 0.886" length, while 0216001.MXESPP measures 0.205" diameter x 0.787" length. Both fit the 5mm x 20mm axial package specification. Selection depends on available board space and holder compatibility.

Q: How does melting I²t affect substitution?

A: Melting I²t values provided (BK/S501-V-1-R: 0.146, 0216001.MXEP: 0.18, 5HFP 1-R: 0.65, 0216001.MXESPP: 0.18) indicate thermal response characteristics. All parts are rated for 1 A fast-blow operation at 250 V. Variations in I²t reflect manufacturing differences within the fast-blow category. All parts maintain the same current and voltage ratings.

Q: Are all substitute parts RoHS compliant?

A: Yes. The original BK/S501-V-1-R is RoHS Compliant. All substitute parts (0216001.MXEP, 5HFP 1-R, 0216001.MXESPP) are ROHS3 Compliant, meeting current RoHS requirements.

Q: What approval certifications should I verify for my application?

A: The BK/S501-V-1-R carries CCC, cULus, MITI/JET, SEMKO, and VDE certifications. Substitute parts carry expanded certification portfolios: 0216001.MXEP includes CCC, CE, CSA, KC, PSE, SEMKO, UL, and VDE; 5HFP 1-R includes CCC, CE, CSA, cULus, IMQ, PSE, SEMKO, and VDE; 0216001.MXESPP includes CE, CSA, CQC, KC, PSE, UR, and VDE. Verify that required certifications for your application are present on the selected substitute part.

Q: Can I use these parts interchangeably in existing designs?

A: All substitute parts maintain the 5mm x 20mm axial through-hole package format and identical electrical ratings. Physical dimension variations (diameter and length) are minor and fall within the specified package category. Verify holder compatibility before implementation.