Equivalent & Substitute Parts for BK-S505SC-10-R

Part Overview

The BK-S505SC-10-R is a ceramic cartridge fuse manufactured by Eaton - Electronics Division, rated for 10 A at 250 V AC/DC with slow-blow response characteristics. This through-hole component features a 5mm x 20mm axial package and is designed for circuit protection applications requiring a breaking capacity of 1.5 kA at rated voltage. The part maintains active product status with 704 units currently in stock. Equivalent substitute parts are identified based on matching electrical ratings, mechanical dimensions, response time classification, and approval agency certifications to ensure direct functional interchangeability in circuit protection applications.

Substiute Parts

BK-S505SC-10-R

Eaton - Electronics DivisionIn Stock: 782BK-S505SC-10-R Datasheet

Current PartRFQ

0215010.MXESPP

Littelfuse Inc.In Stock: 14680215010.MXESPP Datasheet

Parametric EquivalentRFQ

TUC UDA-P 10A 250V (PF)

ConquerIn Stock: 2144TUC UDA-P 10A 250V (PF) Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the BK-S505SC-10-R are qualified based on the following mandatory parameters:

Electrical Equivalence Criteria:

• Current Rating: 10 A (exact match required)
• Voltage Rating (AC): 250 V (exact match required)
• Response Time: Slow Blow (exact match required)
• Breaking Capacity @ Rated Voltage: 1.5 kA (exact match required)

Mechanical Equivalence Criteria:

• Fuse Type: Cartridge, Ceramic (exact match required)
• Package / Case: 5mm x 20mm (Axial) (exact match required)
• Mounting Type: Through Hole (exact match required)
• Size / Dimension: 0.205" Dia x 0.787" L (5.20mm x 20.00mm) (exact match required)

All identified substitute parts meet these criteria and are therefore suitable for direct replacement in applications where the BK-S505SC-10-R is specified.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (BK-S505SC-10-R - Eaton): The original Eaton part maintains active product status with established inventory availability. Approval agencies include BSI, CCC/CQC, CSA, cURus, IMQ, KC, PSE/JET, SEMKO, and VDE, providing comprehensive global compliance coverage.

Secondary Selection (0215010.MXESPP - Littelfuse): This Littelfuse equivalent maintains all required electrical and mechanical parameters with active product status. Approval agencies include CE, CSA, PSE, TUV, and UR. Operating temperature range specified as -55°C ~ 125°C. Inventory availability is 1377 units.

Tertiary Selection (TUC UDA-P 10A 250V - Conquer): This Conquer equivalent meets all electrical and mechanical substitution criteria with active product status. Approval agencies include CCC, cURus, KC, PSE, and TUV. Operating temperature range specified as -55°C ~ 125°C. Inventory availability is 2089 units.

All three parts are suitable for direct substitution based on matching electrical ratings, mechanical dimensions, response time classification, and active product status.

Frequently Asked Questions (FAQ)

Q: What determines if a fuse can substitute for the BK-S505SC-10-R?

A: Substitution requires exact matching of current rating (10 A), voltage rating (250 V AC), response time (Slow Blow), breaking capacity (1.5 kA), fuse type (Cartridge, Ceramic), package dimensions (5mm x 20mm axial), and mounting type (Through Hole). All identified substitute parts meet these criteria.

Q: Are the substitute parts mechanically compatible with existing PCB footprints?

A: Yes. All substitute parts share identical package specifications: 5mm x 20mm axial through-hole configuration with 0.205" diameter and 0.787" length. They are mechanically interchangeable in applications designed for the BK-S505SC-10-R.

Q: Do the substitute parts have different approval certifications?

A: The substitute parts maintain different approval agency certifications. The Littelfuse part (0215010.MXESPP) includes CE, CSA, PSE, TUV, and UR certifications. The Conquer part (TUC UDA-P 10A 250V) includes CCC, cURus, KC, PSE, and TUV certifications. Selection should align with regional compliance requirements for the application.

Q: What is the difference in melting I²t values between the parts?

A: The BK-S505SC-10-R has a melting I²t of 397, while the Littelfuse part measures 333.565 and the Conquer part measures 331.2. These variations fall within acceptable ranges for slow-blow ceramic fuses at the 10 A rating and do not affect functional interchangeability for standard circuit protection applications.

Q: Are there differences in DC cold resistance?

A: DC cold resistance values are 0.0061 Ohms (Eaton), 0.0066 Ohms (Littelfuse), and 0.0059 Ohms (Conquer). These minor variations are within acceptable tolerances for ceramic cartridge fuses and do not impact circuit protection performance.

Q: What is the inventory status for each part?

A: BK-S505SC-10-R has 704 units in stock, 0215010.MXESPP has 1377 units in stock, and TUC UDA-P 10A 250V has 2089 units in stock.