Equivalent & Substitute Parts for BK/PCF-2

Part Overview

The BK/PCF-2 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 component is classified as obsolete, with 856 pieces currently in stock. The fuse features fast blow response characteristics, radial box packaging, and through-hole mounting configuration suitable for printed circuit board applications.

Due to the obsolete product status of BK/PCF-2, identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term product availability for applications requiring this fuse specification.

Substiute Parts

BK/PCF-2

Eaton - Electronics DivisionIn Stock: 951BK/PCF-2 Datasheet

Current PartRFQ

BK/PCF-2-R

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

DirectRFQ

PCF-2-R

Eaton - Electronics DivisionIn Stock: 1068PCF-2-R Datasheet

DirectRFQ

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

PCC-2-R

Eaton - Electronics DivisionIn Stock: 1053PCC-2-R Datasheet

Parametric EquivalentRFQ

PCH-2-R

Eaton - Electronics DivisionIn Stock: 1212PCH-2-R Datasheet

Parametric EquivalentRFQ

80812000075

Littelfuse Inc.In Stock: 107480812000075 Datasheet

DirectRFQ

80812000440

Littelfuse Inc.In Stock: 192680812000440 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for BK/PCF-2 are grouped into two primary categories based on electrical and mechanical compatibility:

Category 1: Direct Eaton PC-Tron® Series Equivalents

Parts BK/PCF-2-R, PCF-2-R, BK/PCB-2-R, BK/PCC-2-R, BK/PCH-2-R, PCB-2-R, PCC-2-R, and PCH-2-R are direct parametric equivalents manufactured by Eaton - Electronics Division. These parts maintain identical electrical specifications: 2 A current rating, 250 V AC / 450 V DC voltage ratings, fast blow response, 50 A AC / 5.9 kA DC breaking capacity, and 0.2 melting I²t. All feature through-hole radial box packaging with dimensions of 0.350" L x 0.184" W x 0.345" H. The primary distinction among these parts is product status and RoHS compliance. BK/PCF-2-R, PCF-2-R, BK/PCB-2-R, BK/PCC-2-R, and BK/PCH-2-R are active products with ROHS3 compliance, while PCB-2-R, PCC-2-R, and PCH-2-R are also active with ROHS3 compliance.

Category 2: Cross-Manufacturer Littelfuse TE5® 808 Series Equivalents

Parts 80812000075 and 80812000440 are manufactured by Littelfuse Inc. under the TE5® 808 series. These parts match the core electrical parameters: 2 A current rating, 250 V AC / 450 V DC voltage ratings, fast blow response, and through-hole radial box packaging. Littelfuse parts feature enhanced breaking capacity (100 A AC / 10 kA DC versus 50 A AC / 5.9 kA DC) and lower melting I²t (0.061 versus 0.2). Physical dimensions are 0.350" L x 0.183" W x 0.350" H, representing a minor variation in width and height. Both Littelfuse parts are active products with ROHS3 compliance and cULus certification.

Substitution is permissible when the following parameters are maintained: 2 A current rating, 250 V AC / 450 V DC voltage ratings, fast blow response, through-hole mounting, and radial box package configuration.

Parameter Comparison

Engineering Selection Recommendations

For Eaton PC-Tron® Series Substitution:

BK/PCF-2-R, PCF-2-R, BK/PCB-2-R, BK/PCC-2-R, BK/PCH-2-R, PCB-2-R, PCC-2-R, and PCH-2-R are direct substitutes for the obsolete BK/PCF-2. All Eaton alternatives are active products with ROHS3 compliance, providing regulatory alignment for new designs and manufacturing. BK/PCC-2-R offers the highest inventory availability at 6446 pieces, followed by BK/PCB-2-R at 2481 pieces. These parts maintain identical electrical performance and physical dimensions, ensuring direct board-level compatibility without circuit modification.

For Cross-Manufacturer Substitution:

Littelfuse 80812000440 and 80812000075 (TE5® 808 series) are functionally equivalent alternatives with enhanced electrical performance characteristics. Both parts maintain the 2 A current rating, 250 V AC / 450 V DC voltage ratings, and fast blow response. The Littelfuse parts feature superior breaking capacity (100 A AC / 10 kA DC) and lower melting I²t (0.061), providing enhanced protection margins in fault conditions. Physical dimensions vary slightly (0.350" L x 0.183" W x 0.350" H versus 0.350" L x 0.184" W x 0.345" H), with width and height differences of 0.001" and 0.005" respectively. Both Littelfuse parts carry cULus certification and ROHS3 compliance. 80812000440 provides superior inventory availability at 1844 pieces.

Selection Priority:

For direct replacement requiring identical specifications and maximum supply assurance, select BK/PCC-2-R (6446 pieces in stock). For cross-manufacturer alternatives with enhanced performance margins, select 80812000440 (1844 pieces in stock).

Frequently Asked Questions (FAQ)

Q: Can BK/PCF-2-R be used as a direct replacement for BK/PCF-2?

A: Yes. BK/PCF-2-R is a direct substitute with identical electrical specifications (2 A, 250 V AC / 450 V DC, fast blow response) and physical dimensions (0.350" L x 0.184" W x 0.345" H). The primary difference is product status: BK/PCF-2-R is active with ROHS3 compliance, while BK/PCF-2 is obsolete and RoHS non-compliant.

Q: What is the difference between Eaton PC-Tron® and Littelfuse TE5® 808 series fuses?

A: Both series meet the core electrical requirements for 2 A, 250 V AC / 450 V DC fast blow fuses. Littelfuse TE5® 808 parts feature higher breaking capacity (100 A AC / 10 kA DC versus 50 A AC / 5.9 kA DC) and lower melting I²t (0.061 versus 0.2). Physical dimensions are nearly identical with minor variations in width and height. Both series are ROHS3 compliant and actively manufactured.

Q: Are there packaging differences between substitute parts?

A: All substitute parts use identical radial box packaging for through-hole mounting. Bulk packaging is standard across all active alternatives. Physical dimensions are consistent within 0.005" tolerance across the Eaton series. Littelfuse parts have dimensions of 0.350" L x 0.183" W x 0.350" H, representing a 0.001" width reduction and 0.005" height increase compared to Eaton specifications.

Q: Which substitute part has the highest inventory availability?

A: BK/PCC-2-R offers the highest inventory at 6446 pieces. This Eaton PC-Tron® series part maintains identical specifications to BK/PCF-2 and is ROHS3 compliant.

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

A: Yes. 80812000440 meets all core electrical parameters: 2 A current rating, 250 V AC / 450 V DC voltage ratings, fast blow response, and through-hole radial box mounting. The enhanced breaking capacity and lower melting I²t provide additional protection margins. Physical dimensions vary by less than 0.005", which is within typical PCB tolerance specifications for through-hole components.

Q: What certifications apply to substitute parts?

A: Eaton PC-Tron® series parts (BK/PCF-2-R, PCF-2-R, BK/PCB-2-R, BK/PCC-2-R, BK/PCH-2-R, PCB-2-R, PCC-2-R, PCH-2-R) carry CSA and UL certifications. Littelfuse TE5® 808 series parts (80812000075, 80812000440) carry cULus certification. All active substitutes are ROHS3 compliant.

Q: Is the melting I²t difference between Eaton and Littelfuse parts significant?

A: The melting I²t values (0.2 for Eaton, 0.061 for Littelfuse) reflect different thermal response characteristics. Littelfuse parts respond faster to overcurrent conditions due to lower I²t. Both values are within acceptable ranges for 2 A fast blow fuses and do not preclude substitution. Application-specific thermal analysis determines whether the difference impacts circuit protection performance.