PCF-2-R Equivalent & Substitute Parts

Part Overview

The 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 board-level protection in industrial and commercial electronic equipment. The part maintains active product status with 1020 pieces in current inventory. Substitute parts are identified to address supply chain requirements, inventory availability, or design flexibility while maintaining electrical and mechanical compatibility within specified parameters.

Key Parameters

Parameter	Value
Current Rating	2 A
Voltage Rating - AC	250 V
Voltage Rating - DC	450 V
Response Time	Fast Blow
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 (8.89mm x 4.67mm x 8.76mm)
RoHS Status	ROHS3 Compliant
Approval Agency	CSA, UL

Substitute Part Grouping Explanation

Substitute parts are classified into three categories based on electrical and mechanical parameter alignment with the PCF-2-R:

Parametric Equivalents (Eaton PC-Tron® Series): Parts BK/PCB-2-R, BK/PCC-2-R, BK/PCH-2-R, and PCB-2-R share identical electrical specifications (2 A, 250 V AC, 450 V DC, fast-blow response) and mechanical dimensions (0.350" L x 0.184" W x 0.345" H). These parts are manufactured by Eaton - Electronics Division within the same PC-Tron® series and carry equivalent CSA and UL approvals. Substitution is based on matching current rating, voltage ratings (both AC and DC), response time classification, mounting configuration, and physical package dimensions.

Direct Manufacturer Equivalent (Littelfuse TE5® 808 Series): Part 80812000440 from Littelfuse Inc. matches the core electrical parameters (2 A, 250 V AC, 450 V DC, fast-blow) and mechanical footprint (0.350" L x 0.183" W x 0.350" H). While dimensional tolerance is within acceptable board-mount specifications and cULus approval is provided, this part exhibits higher breaking capacity (100A AC, 10kA DC versus 50A AC, 5.9kA DC) and lower melting I²t (0.061 versus 0.2), indicating faster response characteristics.

Similar Substitute (SCHURTER FRT 250F Series): Part 7100.1168.13 from SCHURTER Inc. maintains the 2 A current rating and fast-blow response but operates at reduced DC voltage (250 V DC versus 450 V DC). Physical dimensions differ (0.453" L x 0.197" W x 0.315" H), requiring board layout verification. This part is classified as similar rather than direct equivalent due to voltage rating deviation and dimensional variance.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Current Rating (A)	Voltage AC (V)	Voltage DC (V)	Response Time	Breaking Capacity AC	Breaking Capacity DC	Melting I²t	Size L x W x H (mm)	Approval Agency	Inventory (Pcs)
PCF-2-R	Eaton	2	250	450	Fast Blow	50A	5.9kA	0.2	8.89 x 4.67 x 8.76	CSA, UL	1020
BK/PCB-2-R	Eaton	2	250	450	Fast Blow	50A	5.9kA	0.2	8.89 x 4.67 x 8.76	CSA, UL	2481
BK/PCC-2-R	Eaton	2	250	450	Fast Blow	50A	5.9kA	0.2	8.89 x 4.67 x 8.76	CSA, UL	6446
BK/PCH-2-R	Eaton	2	250	450	Fast Blow	50A	5.9kA	0.2	8.89 x 4.67 x 8.76	CSA, UL	921
PCB-2-R	Eaton	2	250	450	Fast Blow	50A	5.9kA	0.2	8.89 x 4.67 x 8.76	CSA, UL	810
80812000440	Littelfuse	2	250	450	Fast Blow	100A	10kA	0.061	8.90 x 4.65 x 8.90	cULus	1844
7100.1168.13	SCHURTER	2	250	250	Fast Blow	63A	N/A	1	11.50 x 5.00 x 8.00	cURus	1069

Engineering Selection Recommendations

Primary Substitutes (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 suitable for one-to-one replacement with PCF-2-R. All parts maintain identical electrical ratings, response characteristics, and physical dimensions. Selection among these Eaton variants may be based on inventory availability: BK/PCC-2-R offers highest stock (6446 pcs), while BK/PCH-2-R has limited availability (921 pcs). All carry equivalent CSA and UL certifications required for industrial applications.

Secondary Substitute (Littelfuse 80812000440): This part is electrically compatible for applications requiring 2 A protection at 250 V AC / 450 V DC with fast-blow response. The dimensional tolerance (8.90 x 4.65 x 8.90 mm versus 8.89 x 4.67 x 8.76 mm) is within acceptable through-hole board-mount specifications. The higher breaking capacity and lower melting I²t indicate faster fault response, which may be advantageous in sensitive circuit protection but requires circuit analysis to confirm suitability. cULus certification provides equivalent regulatory compliance for North American applications.

Conditional Substitute (SCHURTER 7100.1168.13): This part is suitable only for applications where DC voltage requirement does not exceed 250 V. The reduced DC rating (250 V versus 450 V) makes this part unsuitable for circuits designed for 450 V DC operation. Physical dimensions (11.50 x 5.00 x 8.00 mm) differ significantly and require board layout verification for through-hole placement compatibility. Use this part only when circuit specifications explicitly permit 250 V DC maximum operation.

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 PCF-2-R?

A: Yes. These Eaton PC-Tron® series parts are parametric equivalents with identical current rating (2 A), voltage ratings (250 V AC / 450 V DC), response time (fast-blow), and physical dimensions (0.350" L x 0.184" W x 0.345" H). All carry CSA and UL approvals. Selection may be based on inventory availability and lead time requirements.

Q: What is the difference between PCF-2-R and 80812000440?

A: Both parts share identical electrical specifications (2 A, 250 V AC, 450 V DC, fast-blow). The Littelfuse part 80812000440 has higher breaking capacity (100A AC / 10kA DC versus 50A AC / 5.9kA DC) and lower melting I²t (0.061 versus 0.2), indicating faster response to fault conditions. Physical dimensions are within acceptable tolerance. Regulatory approval differs (cULus versus CSA/UL). Substitution is suitable for equivalent circuit protection requirements.

Q: Can 7100.1168.13 replace PCF-2-R in all applications?

A: No. The SCHURTER part 7100.1168.13 has reduced DC voltage rating (250 V DC versus 450 V DC) and different physical dimensions (11.50 x 5.00 x 8.00 mm). This part is suitable only for circuits where maximum DC voltage does not exceed 250 V and where board layout accommodates the larger footprint. Verify circuit specifications and PCB hole spacing before substitution.

Q: What does "fast-blow" response time mean?

A: Fast-blow fuses respond quickly to overcurrent conditions, typically within milliseconds. All listed substitute parts maintain this fast-blow characteristic, ensuring consistent circuit protection response across equivalent and substitute options.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts (PCF-2-R, BK/PCB-2-R, BK/PCC-2-R, BK/PCH-2-R, PCB-2-R, 80812000440, and 7100.1168.13) are ROHS3 compliant, meeting environmental and hazardous substance restrictions for electronic components.

Q: What is the significance of melting I²t values?

A: Melting I²t indicates the thermal energy required to melt the fuse element. Lower values (such as 0.061 in 80812000440) indicate faster response to overcurrent. Higher values (such as 1 in 7100.1168.13) indicate slower response. PCF-2-R has melting I²t of 0.2, representing moderate response speed. Selection should match circuit protection requirements.

Q: Which substitute part has the highest inventory availability?

A: BK/PCC-2-R from Eaton has the highest inventory with 6446 pieces in stock, followed by BK/PCB-2-R with 2481 pieces. These options provide optimal lead time and supply chain reliability for immediate procurement needs.

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