Equivalent & Substitute Parts for Eaton BK/PCF-1 Board Mount Fuse

Part Overview

The Eaton BK/PCF-1 is a 1 A, 250 V AC / 450 V DC board mount fuse with fast blow response characteristics, designed for through-hole radial mounting in PC-Tron® series applications. The original BK/PCF-1 carries an obsolete product status with 672 units in stock. Direct manufacturer equivalents and parametric alternatives are available with active product status and improved compliance ratings, including RoHS3 compliance and higher inventory availability. Substitution is necessary to ensure long-term component availability and compliance with current regulatory standards.

Substiute Parts

BK/PCF-1

Eaton - Electronics DivisionIn Stock: 764BK/PCF-1 Datasheet

Current PartRFQ

BK/PCF-1-R

Eaton - Electronics DivisionIn Stock: 1149BK/PCF-1-R Datasheet

DirectRFQ

PCF-1-R

Eaton - Electronics DivisionIn Stock: 773PCF-1-R Datasheet

DirectRFQ

BK/PCB-1-R

Eaton - Electronics DivisionIn Stock: 4092BK/PCB-1-R Datasheet

Parametric EquivalentRFQ

BK/PCC-1-R

Eaton - Electronics DivisionIn Stock: 6606BK/PCC-1-R Datasheet

Parametric EquivalentRFQ

BK/PCH-1-R

Eaton - Electronics DivisionIn Stock: 899BK/PCH-1-R Datasheet

Parametric EquivalentRFQ

PCB-1-R

Eaton - Electronics DivisionIn Stock: 816PCB-1-R Datasheet

Parametric EquivalentRFQ

PCC-1-R

Eaton - Electronics DivisionIn Stock: 797PCC-1-R Datasheet

Parametric EquivalentRFQ

PCH-1-R

Eaton - Electronics DivisionIn Stock: 930PCH-1-R Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BK/PCF-1 is determined by strict equivalence across all electrical and mechanical parameters. The following criteria establish valid substitutes:

Electrical Parameters (Must Match Exactly):

• Current Rating: 1 A
• Voltage Rating - AC: 250 V
• Voltage Rating - DC: 450 V
• Response Time: Fast Blow
• Breaking Capacity @ Rated Voltage: 50 A AC, 5.9 kA DC
• Melting I²t: 0.02

Mechanical Parameters (Must Match Exactly):

• Mounting Type: Through Hole
• Fuse Type: Board Mount (Cartridge Style Excluded)
• Package / Case: Radial, Box
• Size / Dimension: 0.350" L x 0.184" W x 0.345" H (8.89 mm x 4.67 mm x 8.76 mm)

Certification Requirements:

• Approval Agency: CSA, UL

All substitute parts listed maintain identical electrical performance, mechanical compatibility, and regulatory certifications. Differences in product status, RoHS compliance, and packaging format do not affect functional interchangeability in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: BK/PCF-1-R

The BK/PCF-1-R is the direct manufacturer equivalent of the obsolete BK/PCF-1. This part maintains identical electrical and mechanical specifications while offering active product status and RoHS3 compliance. With 1065 units in inventory, BK/PCF-1-R provides the most direct path for component replacement in existing designs.

Secondary Recommendations: BK/PCB-1-R, BK/PCC-1-R, BK/PCH-1-R

These parametric equivalents deliver identical performance across all critical electrical parameters, breaking capacity, and mechanical dimensions. All three parts carry active product status and RoHS3 compliance. BK/PCB-1-R offers the highest inventory availability at 4046 units, followed by BK/PCC-1-R at 6550 units. Selection among these alternatives depends on internal part numbering conventions and supply chain preferences.

Alternative Options: PCF-1-R, PCB-1-R, PCC-1-R, PCH-1-R

These parts represent simplified part number variants without the BK/ prefix. All maintain identical electrical specifications, mechanical compatibility, and regulatory certifications. These alternatives are suitable for applications where part number format flexibility exists.

Compliance Consideration:

All substitute parts listed carry RoHS3 compliance status, addressing regulatory requirements that the original BK/PCF-1 does not meet. This compliance upgrade is particularly relevant for new designs or systems subject to RoHS directives.

Frequently Asked Questions (FAQ)

Q: Can BK/PCF-1-R be used as a direct replacement for BK/PCF-1 in existing circuit boards?

A: Yes. BK/PCF-1-R maintains identical electrical ratings (1 A, 250 V AC, 450 V DC), response time (Fast Blow), breaking capacity (50 A AC, 5.9 kA DC), and physical dimensions (0.350" L x 0.184" W x 0.345" H). Through-hole radial mounting is identical. No circuit modifications are required.

Q: What is the difference between BK/PCF-1-R and PCF-1-R?

A: Both parts are electrically and mechanically identical. The difference is in part number nomenclature. BK/PCF-1-R includes the BK/ prefix designation, while PCF-1-R uses a simplified format. Selection depends on internal part numbering systems and supplier availability.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed (BK/PCF-1-R, PCF-1-R, BK/PCB-1-R, BK/PCC-1-R, BK/PCH-1-R, PCB-1-R, PCC-1-R, PCH-1-R) carry RoHS3 compliance status. The original BK/PCF-1 is RoHS non-compliant.

Q: Which substitute part has the best inventory availability?

A: BK/PCC-1-R offers the highest inventory with 6550 units in stock, followed by BK/PCB-1-R with 4046 units. Both parts maintain identical electrical and mechanical specifications to the original BK/PCF-1.

Q: Can I mix different substitute part numbers in the same circuit board design?

A: Yes. All substitute parts are parametrically equivalent across electrical performance, breaking capacity, response time, and physical dimensions. Mixing part numbers within a single design does not affect circuit functionality or safety.

Q: What certifications do the substitute parts carry?

A: All substitute parts carry CSA and UL approvals, identical to the original BK/PCF-1. These certifications confirm compliance with North American safety standards for board mount fuses.

Q: Is the melting I²t value the same across all substitute parts?

A: Yes. All substitute parts maintain a melting I²t value of 0.02, ensuring identical thermal response characteristics and protection performance in circuit applications.