Equivalent & Substitute Parts for BK/PCF-3/4-R

Part Overview

The BK/PCF-3/4-R is a 750 mA, 250 V AC / 450 V DC board mount fuse manufactured by Eaton - Electronics Division. This fast-blow fuse is designed for through-hole radial mounting in PCB applications requiring reliable overcurrent protection. The part is active in production with 1155 units in current inventory stock. Substitute parts are identified to support procurement flexibility, design revisions, and supply chain continuity while maintaining electrical and mechanical compatibility.

Substiute Parts

BK/PCF-3/4-R

Eaton - Electronics DivisionIn Stock: 1202BK/PCF-3/4-R Datasheet

Current PartRFQ

BK/PCB-3/4-R

Eaton - Electronics DivisionIn Stock: 2006BK/PCB-3/4-R Datasheet

Parametric EquivalentRFQ

BK/PCC-3/4-R

Eaton - Electronics DivisionIn Stock: 1580BK/PCC-3/4-R Datasheet

Parametric EquivalentRFQ

PCB-3/4-R

Eaton - Electronics DivisionIn Stock: 1029PCB-3/4-R Datasheet

Parametric EquivalentRFQ

7100.1164.13

SCHURTER Inc.In Stock: 13437100.1164.13 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts are classified into two categories based on parametric equivalence:

Parametric Equivalents (Full Compatibility): Parts BK/PCB-3/4-R, BK/PCC-3/4-R, and PCB-3/4-R are direct parametric equivalents. These parts share identical electrical specifications (750 mA, 250 V AC, 450 V DC), response time (Fast Blow), breaking capacity (50A AC, 5.9kA DC), melting I²t (0.016), physical dimensions (0.350" L x 0.184" W x 0.345" H), mounting type (Through Hole), package style (Radial, Box), and regulatory approvals (CSA, UL). All are manufactured by Eaton - Electronics Division within the PC-Tron® series and maintain ROHS3 compliance. These parts are interchangeable in applications where the BK/PCF-3/4-R is specified.

Similar Part (Limited Compatibility): Part 7100.1164.13 manufactured by SCHURTER Inc. is classified as a similar part with parameter variations. While this part shares the same mounting type (Through Hole), package style (Radial, Box), response time (Fast Blow), and regulatory compliance (cURus, ROHS3), it differs in current rating (800 mA vs. 750 mA), DC voltage rating (250 V vs. 450 V), breaking capacity (35A vs. 50A AC, 5.9kA DC), melting I²t (0.21 vs. 0.016), and physical dimensions (0.453" L x 0.197" W x 0.315" H vs. 0.350" L x 0.184" W x 0.345" H). This part is suitable only for applications where the higher current rating and lower DC voltage specification are acceptable.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement: Select BK/PCB-3/4-R, BK/PCC-3/4-R, or PCB-3/4-R when the BK/PCF-3/4-R is unavailable. These parts are parametrically identical and maintain the same electrical performance, breaking capacity, and regulatory certifications (CSA, UL). All three are manufactured by Eaton within the PC-Tron® series and are ROHS3 compliant. Selection among these three may be based on inventory availability: BK/PCB-3/4-R (1946 units), BK/PCC-3/4-R (1485 units), or PCB-3/4-R (983 units).

For Applications with Modified Requirements: The SCHURTER 7100.1164.13 is suitable only when the application circuit can tolerate an 800 mA current rating and 250 V DC maximum voltage. This part is not interchangeable with the BK/PCF-3/4-R in circuits designed for 450 V DC operation. The higher melting I²t value (0.21 vs. 0.016) indicates a slower thermal response, which may affect circuit protection timing. The SCHURTER part carries cURus certification and is ROHS3 compliant but operates within a defined temperature range (-40°C ~ 85°C).

Compliance Considerations: All substitute parts maintain ROHS3 compliance and are active in production. The Eaton equivalents (BK/PCB-3/4-R, BK/PCC-3/4-R, PCB-3/4-R) retain identical CSA and UL approvals. The SCHURTER alternative carries cURus certification, which is distinct from CSA/UL. Verify that cURus certification is acceptable within your application's regulatory framework before selecting the 7100.1164.13.

Frequently Asked Questions (FAQ)

Q: Can BK/PCB-3/4-R, BK/PCC-3/4-R, and PCB-3/4-R be used interchangeably with BK/PCF-3/4-R?

A: Yes. These three parts are parametric equivalents with identical electrical specifications (750 mA, 250 V AC, 450 V DC), response time (Fast Blow), breaking capacity (50A AC, 5.9kA DC), melting I²t (0.016), physical dimensions, and regulatory approvals (CSA, UL). They are direct substitutes for the BK/PCF-3/4-R in all applications.

Q: What are the key differences between the Eaton equivalents and the SCHURTER 7100.1164.13?

A: The SCHURTER part differs in four critical parameters: current rating (800 mA vs. 750 mA), DC voltage rating (250 V vs. 450 V), breaking capacity (35A vs. 50A AC, 5.9kA DC), and melting I²t (0.21 vs. 0.016). Physical dimensions also differ (0.453" L x 0.197" W x 0.315" H vs. 0.350" L x 0.184" W x 0.345" H). The SCHURTER part is not a direct substitute for applications requiring 450 V DC operation.

Q: Can the SCHURTER 7100.1164.13 be used in a circuit designed for the BK/PCF-3/4-R?

A: Only if the circuit can tolerate the parameter differences. The SCHURTER part is suitable for applications where the maximum DC voltage is 250 V (not 450 V), the current rating can be 800 mA (not 750 mA), and the slower thermal response (melting I²t 0.21) is acceptable. Verify these conditions before substitution.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All five parts listed (BK/PCF-3/4-R, BK/PCB-3/4-R, BK/PCC-3/4-R, PCB-3/4-R, and 7100.1164.13) are ROHS3 compliant.

Q: What certifications do the substitute parts carry?

A: The Eaton parts (BK/PCF-3/4-R, BK/PCB-3/4-R, BK/PCC-3/4-R, PCB-3/4-R) carry CSA and UL approvals. The SCHURTER 7100.1164.13 carries cURus certification. Confirm that the certification type is acceptable for your application's regulatory requirements.

Q: Do the physical dimensions of the SCHURTER part affect PCB layout compatibility?

A: Yes. The SCHURTER 7100.1164.13 has different dimensions (0.453" L x 0.197" W x 0.315" H) compared to the Eaton parts (0.350" L x 0.184" W x 0.345" H). Verify that the PCB footprint and mounting holes accommodate the larger SCHURTER package before substitution.

Q: Which substitute part has the highest inventory availability?

A: BK/PCB-3/4-R has the highest inventory with 1946 units in stock, followed by BK/PCC-3/4-R (1485 units), 7100.1164.13 (1238 units), BK/PCF-3/4-R (1155 units), and PCB-3/4-R (983 units).