Equivalent & Substitute Parts for BK/S501-V-2-R

Part Overview

The BK/S501-V-2-R is a ceramic cartridge fuse manufactured by Eaton - Electronics Division, rated for 2 A at 250 V AC/DC with fast-blow response characteristics. This through-hole component is designed for 5mm x 20mm axial mounting applications and is currently in active production status. 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-2-R

Eaton - Electronics DivisionIn Stock: 803BK/S501-V-2-R Datasheet

Current PartRFQ

0216002.MXEP

Littelfuse Inc.In Stock: 16590216002.MXEP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BK/S501-V-2-R is determined by strict equivalence across the following critical parameters:

Electrical Equivalence:

• Current Rating: 2 A (exact match required)
• Voltage Rating (AC): 250 V (exact match required)
• Breaking Capacity: 1.5 kA (exact match required)
• Response Time: Fast Blow (exact match required)

Mechanical Equivalence:

• Package / Case: 5mm x 20mm (Axial) (exact match required)
• Mounting Type: Through Hole (exact match required)

Compliance Equivalence:

• RoHS Compliance Status (compliant or equivalent regulatory status)
• Approval Agency certifications (CSA, UL, VDE, or equivalent recognized standards bodies)

The substitute part 0216002.MXEP from Littelfuse Inc. meets all electrical and mechanical equivalence criteria and maintains active product status with recognized international approvals.

Parameter Comparison

Engineering Selection Recommendations

Both the BK/S501-V-2-R and 0216002.MXEP maintain active product status and satisfy the core electrical and mechanical requirements for 2 A, 250 V AC/DC ceramic cartridge fuse applications in 5mm x 20mm through-hole configurations.

BK/S501-V-2-R (Eaton) is the original specification component with established supply availability (752 pcs in stock) and comprehensive international approvals including BSI, CCC, CSA, cULus, IMQ, MITI/JET, SEMKO, and VDE certification.

0216002.MXEP (Littelfuse) provides equivalent electrical performance with higher inventory availability (1590 pcs in stock) and certifications covering CCC, CE, CSA, KC, SEMKO, UL, and VDE standards. This substitute maintains ROHS3 compliance and operates across the temperature range of -55°C to 125°C.

Both components are suitable for direct substitution based on electrical equivalence, mechanical compatibility, and regulatory compliance. Physical dimensions show minor variations within acceptable tolerances for standard through-hole mounting applications.

Frequently Asked Questions (FAQ)

Q: Can 0216002.MXEP be used as a direct replacement for BK/S501-V-2-R?

A: Yes. Both components share identical electrical ratings (2 A, 250 V AC/DC), fuse type (ceramic cartridge), response time (fast blow), breaking capacity (1.5 kA), and package dimensions (5mm x 20mm axial). Both maintain active product status and hold recognized international approvals.

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

A: The primary differences are manufacturer identity (Eaton vs. Littelfuse), melting I²t values (2 vs. 1.87), DC cold resistance (0.073 vs. 0.0764 ohms), physical dimensions (minor variations within tolerance), and operating temperature specification (Littelfuse specifies -55°C to 125°C). These differences do not affect substitution eligibility for standard circuit protection applications.

Q: Are the physical dimensions identical?

A: Physical dimensions show minor variations. BK/S501-V-2-R measures 0.218" Dia x 0.831" L (5.54mm x 21.10mm), while 0216002.MXEP measures 0.228" Dia x 0.886" L (5.80mm x 22.50mm). Both conform to the 5mm x 20mm axial package specification and are compatible with standard through-hole mounting footprints.

Q: Which approvals are common to both components?

A: Both components hold CCC, CSA, SEMKO, and VDE certifications. BK/S501-V-2-R additionally includes BSI, cULus, IMQ, and MITI/JET approvals. 0216002.MXEP additionally includes CE, KC, and UL approvals. Selection should be based on specific regional or application-level certification requirements.

Q: What is the significance of the melting I²t difference?

A: Melting I²t (2 vs. 1.87) represents the thermal energy required to melt the fuse element. This minor difference (approximately 6.5% variation) falls within acceptable tolerance for equivalent fast-blow ceramic cartridge fuses and does not preclude substitution in standard applications.

Q: Is RoHS compliance maintained with the substitute part?

A: Yes. BK/S501-V-2-R is RoHS Compliant, and 0216002.MXEP is ROHS3 Compliant. Both meet current regulatory requirements for hazardous substance restrictions.