BK/S501-V-80-R Equivalent & Substitute Parts

Part Overview

The BK/S501-V-80-R is an 80 mA ceramic cartridge fuse manufactured by Eaton - Electronics Division, rated for 250 V AC/DC operation in a 5mm x 20mm through-hole package. This fast-blow fuse is designed for circuit protection applications requiring rapid response to overcurrent conditions. The part maintains active product status with 1179 units in current inventory stock.

Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable, while maintaining electrical and mechanical compatibility within the specified parameter tolerances.

Substiute Parts

BK/S501-V-80-R

Eaton - Electronics DivisionIn Stock: 1211BK/S501-V-80-R Datasheet

Current PartRFQ

0216.080MXEP

Littelfuse Inc.In Stock: 42080216.080MXEP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts are qualified based on strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Current Rating: 80 mA (exact match required)
• Voltage Rating (AC): 250 V (exact match required)
• Fuse Type: Cartridge, Ceramic (exact match required)
• Package / Case: 5mm x 20mm (Axial) (exact match required)
• Response Time: Fast Blow (exact match required)
• Mounting Type: Through Hole (exact match required)
• Breaking Capacity @ Rated Voltage: 1.5 kA (exact match required)

Allowable Variation Parameters:

• Physical dimensions within standard tolerance ranges for the 5mm x 20mm package class
• DC Cold Resistance variations within acceptable limits for ceramic cartridge fuses
• Operating temperature range extensions (substitute may have wider range)
• Approval agency certifications (substitute may have additional certifications)

The substitute part 0216.080MXEP meets all mandatory matching criteria and qualifies as a direct electrical and mechanical equivalent.

Parameter Comparison

Engineering Selection Recommendations

Primary Part: BK/S501-V-80-R (Eaton)

Selection basis: Active product status with established inventory (1179 units). Holds CSA and cULus certifications meeting North American regulatory requirements. RoHS compliant for environmental standards compliance.

Substitute Part: 0216.080MXEP (Littelfuse)

Selection basis: Active product status with higher inventory availability (4160 units). Holds expanded certification portfolio including CCC, CE, CSA, SEMKO, UR, and VDE, providing broader international regulatory coverage. ROHS3 compliant. Electrical parameters remain within acceptable operating ranges for the 80 mA, 250 V AC/DC circuit protection function.

Both parts are suitable for direct substitution in through-hole PCB applications requiring 80 mA fast-blow ceramic cartridge fuse protection at 250 V AC/DC.

Frequently Asked Questions (FAQ)

Q: Can 0216.080MXEP be used as a direct replacement for BK/S501-V-80-R?

A: Yes. Both parts share identical electrical ratings (80 mA, 250 V AC/DC), fuse type (ceramic cartridge), response time (fast blow), package dimensions (5mm x 20mm axial), and breaking capacity (1.5 kA). Physical dimensions fall within standard tolerance ranges for this package class. Both maintain active product status and RoHS compliance.

Q: What are the key differences between these two parts?

A: The primary differences are manufacturer (Eaton vs. Littelfuse), regulatory certifications (Littelfuse holds additional international approvals), and DC cold resistance values (27.9 Ohms vs. 7.885 Ohms). These differences do not affect functional equivalence for circuit protection applications.

Q: Are there any compatibility concerns with PCB holders or fuse clips?

A: Both parts use standard 5mm x 20mm axial through-hole packages. Minor dimensional variations (0.218" vs. 0.236" diameter; 0.831" vs. 0.886" length) fall within normal manufacturing tolerances for ceramic cartridge fuses and do not affect compatibility with standard fuse holders rated for this package class.

Q: Which part should be selected for international applications?

A: The 0216.080MXEP (Littelfuse) holds broader international certifications (CCC, CE, SEMKO, UR, VDE) in addition to CSA, making it suitable for global markets. The BK/S501-V-80-R (Eaton) holds CSA and cULus certifications, suitable for North American applications.

Q: Do both parts have the same response time characteristics?

A: Yes. Both parts are rated as fast-blow fuses with identical melting I²t values within acceptable operating ranges (0.0011 vs. 0.00084), ensuring equivalent protection speed for overcurrent conditions.