Eaton BK/S505SC-5-R Ceramic Fuse Equivalent & Substitute Parts

Part Overview

The Eaton BK/S505SC-5-R is a 5 A, 250 V AC/DC ceramic cartridge fuse with slow-blow response characteristics, designed for through-hole mounting in 5mm x 20mm form factor applications. This fuse is classified as Active product status and is RoHS3 compliant. Equivalent and substitute parts are identified when component availability is limited, supply chain disruptions occur, or design flexibility permits cross-manufacturer sourcing while maintaining electrical and mechanical compatibility.

Substiute Parts

BK/S505SC-5-R

Eaton - Electronics DivisionIn Stock: 965BK/S505SC-5-R Datasheet

Current PartRFQ

BK-S505SC-5-R

Eaton - Electronics DivisionIn Stock: 6337BK-S505SC-5-R Datasheet

Parametric EquivalentRFQ

0215005.MXESPP

Littelfuse Inc.In Stock: 14360215005.MXESPP Datasheet

Parametric EquivalentRFQ

0659P5000-13

Bel Fuse Inc.In Stock: 16070659P5000-13 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Eaton BK/S505SC-5-R ceramic fuse is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

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

All identified substitute parts meet these electrical and mechanical specifications. Variations in secondary parameters such as melting I²t, DC cold resistance, and operating temperature range do not preclude substitution when the primary parameters align. Approval agency certifications and RoHS compliance status are provided for regulatory verification but do not restrict substitution eligibility.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: BK-S505SC-5-R (Eaton)

The BK-S505SC-5-R represents the closest parametric equivalent to the BK/S505SC-5-R, both manufactured by Eaton - Electronics Division within the S505 series. This part maintains identical electrical specifications and mechanical form factor. Both parts carry Active product status and meet RoHS compliance requirements. The melting I²t value (71.3) and DC cold resistance (0.0131 Ohms) are within negligible variance of the primary part. This substitute is suitable for direct replacement in all applications where the original part is specified.

Secondary Selection: 0215005.MXESPP (Littelfuse Inc.)

The Littelfuse 0215005.MXESPP ceramic cartridge fuse meets all mandatory electrical and mechanical parameters. This part is manufactured by Littelfuse Inc. within the 215SP series and carries Active product status with ROHS3 compliance. The melting I²t value (66.095) represents a lower thermal energy threshold compared to the primary part. Operating temperature range is specified as -55°C to 125°C. This substitute is suitable for applications where Littelfuse sourcing is preferred or required.

Tertiary Selection: 0659P5000-13 (Bel Fuse Inc.)

The Bel Fuse 0659P5000-13 ceramic cartridge fuse satisfies all mandatory electrical and mechanical specifications. This part is manufactured by Bel Fuse Inc. within the 0659P series and carries Active product status with ROHS3 compliance. The melting I²t value (92.5) represents a higher thermal energy threshold compared to the primary part. Operating temperature range is specified as -55°C to 125°C. Moisture Sensitivity Level is rated as 1 (Unlimited). This substitute is suitable for applications where Bel Fuse sourcing is preferred or required.

Frequently Asked Questions (FAQ)

Q: Can the BK-S505SC-5-R be used as a direct replacement for the BK/S505SC-5-R?

A: Yes. Both parts are manufactured by Eaton - Electronics Division and share identical electrical ratings (5 A, 250 V AC/DC), fuse type (ceramic cartridge), response time (slow blow), and mechanical form factor (5mm x 20mm through-hole). The parts are parametrically equivalent and suitable for direct substitution.

Q: What is the difference between the Littelfuse 0215005.MXESPP and the Eaton BK/S505SC-5-R?

A: The parts are electrically and mechanically equivalent across all mandatory parameters. The primary difference is manufacturer (Littelfuse vs. Eaton). Secondary differences include melting I²t value (66.095 vs. 71.2) and DC cold resistance (0.0153 vs. 0.013 Ohms). Both parts carry ROHS3 compliance and Active product status. The Littelfuse part specifies an operating temperature range of -55°C to 125°C.

Q: What is the difference between the Bel Fuse 0659P5000-13 and the Eaton BK/S505SC-5-R?

A: The parts are electrically and mechanically equivalent across all mandatory parameters. The primary difference is manufacturer (Bel Fuse vs. Eaton). Secondary differences include melting I²t value (92.5 vs. 71.2) and DC cold resistance (0.013 vs. 0.013 Ohms). Both parts carry ROHS3 compliance and Active product status. The Bel Fuse part specifies an operating temperature range of -55°C to 125°C and Moisture Sensitivity Level of 1 (Unlimited).

Q: Are all substitute parts RoHS compliant?

A: Yes. The BK-S505SC-5-R, 0215005.MXESPP, and 0659P5000-13 are all RoHS compliant. The BK/S505SC-5-R, BK-S505SC-5-R, and 0215005.MXESPP carry ROHS3 designation. The 0659P5000-13 carries ROHS3 designation. All parts meet REACH compliance requirements.

Q: Can these fuses be used interchangeably in the same circuit board?

A: Yes. All substitute parts share the identical 5mm x 20mm (Axial) form factor and through-hole mounting type. Physical installation is identical. Electrical performance is equivalent across the mandatory parameters (5 A, 250 V AC/DC, 1.5 kA breaking capacity, slow-blow response).

Q: What approval agencies certify these fuses?

A: The Eaton BK/S505SC-5-R carries certifications from BSI, CCC/CQC, CSA, cURus, IMQ, KC, PSE/JET, SEMKO, and VDE. The Littelfuse 0215005.MXESPP carries certifications from CE, CQC, CSA, KC, PSE, UR, and VDE. The Bel Fuse 0659P5000-13 carries certifications from CQC, cURus, PSE, and VDE. Certification overlap includes CQC, PSE, and VDE across all three manufacturers.

Q: Is there a difference in breaking capacity between these parts?

A: No. All parts specify a breaking capacity of 1.5 kA at rated voltage (250 V AC).

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

A: The melting I²t value indicates the thermal energy required to melt the fuse element. The Eaton BK/S505SC-5-R specifies 71.2, the Littelfuse 0215005.MXESPP specifies 66.095, and the Bel Fuse 0659P5000-13 specifies 92.5. These variations reflect different fuse element designs but do not affect substitution eligibility when all mandatory electrical and mechanical parameters match.