PCF-3-R Equivalent & Substitute Parts Reference

Part Overview

The PCF-3-R is a 3 A board mount fuse rated for 250 V AC and 450 V DC operation, manufactured by Eaton - Electronics Division under the PC-Tron® series. This through-hole radial fuse features fast-blow response characteristics and is designed for direct PCB mounting applications. The part maintains Active product status with CSA and UL approval certifications. Substitute parts are identified when identical electrical specifications, mechanical dimensions, and regulatory compliance are maintained across alternative part numbers within the same manufacturer product line.

Key Parameters

Parameter	Specification
Current Rating	3 A
Voltage Rating - AC	250 V
Voltage Rating - DC	450 V
Fuse Type	Board Mount (Cartridge Style Excluded)
Mounting Type	Through Hole
Response Time	Fast Blow
Package / Case	Radial, Box
Breaking Capacity @ Rated Voltage	50 A AC, 4.4 kA DC
Melting I²t	0.75
Size / Dimension	0.350" L x 0.184" W x 0.345" H (8.89 mm x 4.67 mm x 8.76 mm)
Approval Agency	CSA, UL
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the PCF-3-R are classified as parametric equivalents based on strict electrical and mechanical parameter matching. All substitute parts maintain identical specifications across the following critical parameters:

Current Rating: 3 A
Voltage Rating: 250 V AC / 450 V DC
Response Time: Fast Blow
Mounting Type: Through Hole
Package Configuration: Radial, Box
Physical Dimensions: 0.350" L x 0.184" W x 0.345" H
Breaking Capacity: 50 A AC, 4.4 kA DC
Melting I²t: 0.75
Regulatory Certifications: CSA, UL
RoHS Compliance: ROHS3 Compliant
Series: PC-Tron®
Manufacturer: Eaton - Electronics Division

Substitution is valid only when all parameters listed above are identical. Differences in part number designation reflect internal manufacturer coding variations that do not affect functional or mechanical compatibility.

Parameter Comparison

Parameter	PCF-3-R	BK/PCB-3-R	BK/PCC-3-R	BK/PCH-3-R
Manufacturer	Eaton - Electronics Division	Eaton - Electronics Division	Eaton - Electronics Division	Eaton - Electronics Division
Series	PC-Tron®	PC-Tron®	PC-Tron®	PC-Tron®
Current Rating (Amps)	3 A	3 A	3 A	3 A
Voltage Rating - AC	250 V	250 V	250 V	250 V
Voltage Rating - DC	450 V	450 V	450 V	450 V
Fuse Type	Board Mount (Cartridge Style Excluded)	Board Mount (Cartridge Style Excluded)	Board Mount (Cartridge Style Excluded)	Board Mount (Cartridge Style Excluded)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Response Time	Fast Blow	Fast Blow	Fast Blow	Fast Blow
Package / Case	Radial, Box	Radial, Box	Radial, Box	Radial, Box
Breaking Capacity @ Rated Voltage	50 A AC, 4.4 kA DC	50 A AC, 4.4 kA DC	50 A AC, 4.4 kA DC	50 A AC, 4.4 kA DC
Melting I²t	0.75	0.75	0.75	0.75
Size / Dimension	0.350" L x 0.184" W x 0.345" H (8.89 mm x 4.67 mm x 8.76 mm)	0.350" L x 0.184" W x 0.345" H (8.89 mm x 4.67 mm x 8.76 mm)	0.350" L x 0.184" W x 0.345" H (8.89 mm x 4.67 mm x 8.76 mm)	0.350" L x 0.184" W x 0.345" H (8.89 mm x 4.67 mm x 8.76 mm)
Approval Agency	CSA, UL	CSA, UL	CSA, UL	CSA, UL
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active

Engineering Selection Recommendations

All substitute parts listed—BK/PCB-3-R, BK/PCC-3-R, and BK/PCH-3-R—are direct parametric equivalents to the PCF-3-R. Each part maintains Active product status and carries identical CSA and UL certifications. All parts comply with ROHS3 requirements and are manufactured by Eaton - Electronics Division within the PC-Tron® series.

Selection between the main part number and substitute parts is based on availability and inventory levels. The BK/PCB-3-R offers the highest inventory availability at 20,099 pieces. The BK/PCC-3-R provides 2,551 pieces in stock, while the BK/PCH-3-R maintains 1,690 pieces. The original PCF-3-R has 757 pieces available.

No technical differentiation exists between these part numbers. All electrical performance, mechanical fit, and regulatory compliance characteristics are identical. Component selection should be determined by supply chain requirements and procurement lead times.

Frequently Asked Questions (FAQ)

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

A: Yes. All substitute parts are parametric equivalents with identical electrical ratings (3 A, 250 V AC, 450 V DC), response characteristics (fast-blow), mechanical dimensions (0.350" L x 0.184" W x 0.345" H), and regulatory certifications (CSA, UL). Direct substitution is valid without circuit modification.

Q: Are there any differences in breaking capacity between the main part and substitutes?

A: No. All parts maintain identical breaking capacity specifications of 50 A AC and 4.4 kA DC at rated voltage.

Q: Do all substitute parts have the same RoHS compliance status?

A: Yes. The PCF-3-R and all substitute parts (BK/PCB-3-R, BK/PCC-3-R, BK/PCH-3-R) are ROHS3 Compliant.

Q: What is the significance of the different part number prefixes (PCF vs. BK/PCB, BK/PCC, BK/PCH)?

A: The part number variations reflect internal manufacturer coding designations. These differences do not affect electrical performance, mechanical compatibility, or functional characteristics. All parts are manufactured by Eaton - Electronics Division and belong to the PC-Tron® series.

Q: Are all substitute parts currently in Active product status?

A: Yes. The PCF-3-R and all substitute parts maintain Active product status, confirming ongoing manufacturer support and availability.

Q: Can these fuses be used in both AC and DC circuits?

A: Yes. All parts are rated for dual-voltage operation: 250 V AC and 450 V DC. Circuit application determines which voltage rating applies.

Q: Is the melting I²t value identical across all parts?

A: Yes. All parts maintain a melting I²t value of 0.75, ensuring consistent thermal response characteristics.

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