BK/PCF-2-R Equivalent & Substitute Parts

Part Overview

The BK/PCF-2-R is a 2 A, 250 V AC / 450 V DC board mount fuse manufactured by Eaton - Electronics Division as part of the PC-Tron® series. This through-hole radial fuse is designed for fast-blow response applications requiring CSA and UL approval. The component is currently active in production with 966 units in stock. Equivalent and substitute parts are identified to support procurement flexibility, design revisions, and supply chain continuity for applications requiring identical or compatible electrical and mechanical specifications.

Substiute Parts

BK/PCF-2-R

Eaton - Electronics DivisionIn Stock: 1007BK/PCF-2-R Datasheet

Current PartRFQ

BK/PCB-2-R

Eaton - Electronics DivisionIn Stock: 2565BK/PCB-2-R Datasheet

Parametric EquivalentRFQ

BK/PCC-2-R

Eaton - Electronics DivisionIn Stock: 6541BK/PCC-2-R Datasheet

Parametric EquivalentRFQ

BK/PCH-2-R

Eaton - Electronics DivisionIn Stock: 1007BK/PCH-2-R Datasheet

Parametric EquivalentRFQ

PCB-2-R

Eaton - Electronics DivisionIn Stock: 883PCB-2-R Datasheet

Parametric EquivalentRFQ

80812000440

Littelfuse Inc.In Stock: 192680812000440 Datasheet

DirectRFQ

7100.1168.13

SCHURTER Inc.In Stock: 11797100.1168.13 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the BK/PCF-2-R are classified into three categories based on electrical and mechanical compatibility:

Parametric Equivalents (Eaton PC-Tron® Series): Parts BK/PCB-2-R, BK/PCC-2-R, BK/PCH-2-R, and PCB-2-R are direct parametric equivalents manufactured by Eaton. These parts share identical electrical specifications (2 A, 250 V AC, 450 V DC, fast-blow response), mechanical dimensions, mounting configuration, and approval certifications (CSA, UL). The melting I²t value of 0.2 is consistent across all parametric equivalents. These parts are interchangeable for applications requiring the specified current and voltage ratings.

Direct Manufacturer Equivalent (Littelfuse TE5® 808 Series): Part 80812000440 is manufactured by Littelfuse Inc. and meets the core electrical requirements (2 A, 250 V AC, 450 V DC, fast-blow response). This part features enhanced breaking capacity (100A AC, 10kA DC versus 50A AC, 5.9kA DC) and operates across a wider temperature range (-40°C to 125°C). The melting I²t value differs at 0.061. Mechanical dimensions are nearly identical with negligible variation. Approval certification is cULus. This part is suitable for applications where higher breaking capacity and extended temperature operation are beneficial.

Similar Manufacturer Part (SCHURTER FRT 250F Series): Part 7100.1168.13 is manufactured by SCHURTER Inc. and shares the 2 A current rating and fast-blow response characteristic. However, the DC voltage rating is 250 V (not 450 V), and the breaking capacity is 63A. The melting I²t value is 1.0. Mechanical dimensions differ (0.453" L x 0.197" W x 0.315" H). Approval certification is cURus. This part is suitable only for applications where the 250 V DC rating is sufficient and the larger physical footprint is acceptable.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement: Select BK/PCB-2-R, BK/PCC-2-R, BK/PCH-2-R, or PCB-2-R when procurement of the original BK/PCF-2-R is unavailable. These Eaton PC-Tron® series parts are parametric equivalents with identical electrical specifications, mechanical dimensions, and regulatory certifications (CSA, UL). All four parts are ROHS3 compliant and suitable for immediate substitution in existing designs without circuit modification.

For Enhanced Performance: Select 80812000440 (Littelfuse TE5® 808) when the application benefits from higher breaking capacity (100A AC, 10kA DC) and extended operating temperature range (-40°C to 125°C). This part meets the core electrical requirements and is cULus certified. The lower melting I²t value (0.061) indicates faster response to overcurrent conditions. Mechanical dimensions are nearly identical, supporting direct board-level substitution.

For Limited DC Voltage Applications: Select 7100.1168.13 (SCHURTER FRT 250F) only when the application operates at 250 V DC or lower. This part is not suitable for applications requiring 450 V DC operation. The larger physical footprint (0.453" L x 0.197" W x 0.315" H) requires verification of available board space. The higher melting I²t value (1.0) results in slower response compared to the main part.

All substitute parts are active products with current production status and ROHS3 compliance.

Frequently Asked Questions (FAQ)

Q: Can BK/PCB-2-R, BK/PCC-2-R, BK/PCH-2-R, and PCB-2-R be used interchangeably with BK/PCF-2-R?

A: Yes. These four Eaton PC-Tron® series parts are parametric equivalents with identical current rating (2 A), AC voltage rating (250 V), DC voltage rating (450 V), response time (fast-blow), melting I²t (0.2), mechanical dimensions, and regulatory certifications (CSA, UL). They are direct substitutes for the BK/PCF-2-R.

Q: What is the difference between the Littelfuse 80812000440 and the Eaton PC-Tron® equivalents?

A: The Littelfuse 80812000440 shares the same current rating (2 A), AC voltage (250 V), and DC voltage (450 V) as the Eaton parts. However, it features higher breaking capacity (100A AC, 10kA DC versus 50A AC, 5.9kA DC), a lower melting I²t value (0.061 versus 0.2), and operates across a wider temperature range (-40°C to 125°C). The regulatory certification is cULus rather than CSA/UL. Mechanical dimensions are nearly identical.

Q: Is the SCHURTER 7100.1168.13 a suitable replacement for BK/PCF-2-R?

A: The SCHURTER 7100.1168.13 is not a direct replacement. While it shares the 2 A current rating and 250 V AC rating, its DC voltage rating is limited to 250 V (not 450 V). The breaking capacity (63A) and melting I²t (1.0) differ significantly. The physical dimensions are larger (0.453" L x 0.197" W x 0.315" H). This part is suitable only for applications where 250 V DC operation is acceptable and board space permits the larger footprint.

Q: What does melting I²t indicate, and why does it vary among substitutes?

A: Melting I²t is a measure of the thermal energy required to melt the fuse element. The BK/PCF-2-R and Eaton equivalents have a melting I²t of 0.2. The Littelfuse 80812000440 has a lower value (0.061), indicating faster response to overcurrent. The SCHURTER 7100.1168.13 has a higher value (1.0), indicating slower response. Selection depends on the specific overcurrent protection requirements of the application.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed (BK/PCB-2-R, BK/PCC-2-R, BK/PCH-2-R, PCB-2-R, 80812000440, and 7100.1168.13) are ROHS3 compliant.

Q: What regulatory certifications apply to each substitute?

A: The Eaton PC-Tron® series parts (BK/PCB-2-R, BK/PCC-2-R, BK/PCH-2-R, PCB-2-R) carry CSA and UL certifications. The Littelfuse 80812000440 carries cULus certification. The SCHURTER 7100.1168.13 carries cURus certification. Selection should align with the regulatory requirements of the target application.

Q: Can the Littelfuse 80812000440 be used in applications originally designed for BK/PCF-2-R?

A: Yes, for applications where the enhanced breaking capacity and extended temperature range are compatible with the design. The core electrical specifications (2 A, 250 V AC, 450 V DC, fast-blow) are met. However, the lower melting I²t (0.061 versus 0.2) results in faster fuse operation. Verify that the application's overcurrent protection scheme accommodates this faster response characteristic.

Q: What is the physical footprint difference between BK/PCF-2-R and 7100.1168.13?

A: The BK/PCF-2-R measures 0.350" L x 0.184" W x 0.345" H. The SCHURTER 7100.1168.13 measures 0.453" L x 0.197" W x 0.315" H. The SCHURTER part is longer (0.103" additional length) and slightly wider (0.013" additional width). Board layout verification is required before substitution.

Q: Are there inventory considerations when selecting a substitute?

A: Current inventory levels are: BK/PCF-2-R (966 units), BK/PCB-2-R (2481 units), BK/PCC-2-R (6446 units), BK/PCH-2-R (921 units), PCB-2-R (810 units), 80812000440 (1844 units), and 7100.1168.13 (1069 units). BK/PCC-2-R has the highest availability among Eaton equivalents.