Equivalent & Substitute Parts for BK/PCC-2-1/2

Part Overview

The BK/PCC-2-1/2 is a 2.5 A board mount fuse rated for 250 V AC and 450 V DC operation, manufactured by Eaton - Electronics Division as part of the PC-Tron® series. This component is classified as obsolete, indicating that direct procurement from original inventory may become limited. Identifying equivalent and substitute parts ensures design continuity and supply chain reliability for applications requiring fast-blow fuse protection in through-hole radial configurations.

Key Parameters

Parameter	Value
Current Rating	2.5 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
Size / Dimension	0.350" L x 0.184" W x 0.345" H (8.89mm x 4.67mm x 8.76mm)
Approval Agency	CSA, UL

Substitute Part Grouping Explanation

Substitute parts for the BK/PCC-2-1/2 are classified into two categories based on electrical and mechanical compatibility:

Direct Manufacturer Equivalents (Eaton - Electronics Division): Parts BK/PCC-2-1/2-R, BK/PCB-2-1/2-R, BK/PCH-2-1/2-R, PCB-2-1/2-R, PCC-2-1/2-R, and PCH-2-1/2-R maintain identical electrical specifications (2.5 A, 250 V AC, 450 V DC, fast-blow response) and mechanical form factors. These parts differ primarily in product status (active versus obsolete) and RoHS compliance status. All Eaton equivalents share the same breaking capacity (50 A AC, 5.9 kA DC) and melting I²t value (0.3).

Cross-Manufacturer Equivalents (Littelfuse Inc.): Parts 80812500075 and 80812500440 from the TE5® 808 series provide electrical equivalence with identical current and voltage ratings. These parts feature enhanced breaking capacity (100 A AC, 10 kA DC) and lower melting I²t (0.0898), with operating temperature range of -40°C to 125°C. Dimensional tolerance differences exist within acceptable through-hole mounting parameters.

Substitution is determined by matching the following critical parameters: current rating (2.5 A), AC voltage rating (250 V), DC voltage rating (450 V), fuse response time (fast-blow), mounting type (through-hole), and package configuration (radial, box).

Parameter Comparison

Part Number	Manufacturer	Current Rating (A)	Voltage AC (V)	Voltage DC (V)	Response Time	Breaking Capacity AC	Breaking Capacity DC	Melting I²t	Product Status	RoHS Status
BK/PCC-2-1/2	Eaton	2.5	250	450	Fast Blow	50 A	5.9 kA	0.3	Obsolete	Non-compliant
BK/PCC-2-1/2-R	Eaton	2.5	250	450	Fast Blow	50 A	5.9 kA	0.3	Active	ROHS3 Compliant
BK/PCB-2-1/2-R	Eaton	2.5	250	450	Fast Blow	50 A	5.9 kA	0.3	Active	ROHS3 Compliant
BK/PCH-2-1/2-R	Eaton	2.5	250	450	Fast Blow	50 A	5.9 kA	0.3	Active	ROHS3 Compliant
PCB-2-1/2-R	Eaton	2.5	250	450	Fast Blow	50 A	5.9 kA	0.3	Active	ROHS3 Compliant
PCC-2-1/2-R	Eaton	2.5	250	450	Fast Blow	50 A	5.9 kA	0.3	Active	ROHS3 Compliant
PCH-2-1/2-R	Eaton	2.5	250	450	Fast Blow	50 A	5.9 kA	0.3	Active	ROHS3 Compliant
80812500075	Littelfuse	2.5	250	450	Fast Blow	100 A	10 kA	0.0898	Active	ROHS3 Compliant
80812500440	Littelfuse	2.5	250	450	Fast Blow	100 A	10 kA	0.0898	Active	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (Same Manufacturer): The Eaton PC-Tron® series parts BK/PCC-2-1/2-R, BK/PCB-2-1/2-R, BK/PCH-2-1/2-R, PCB-2-1/2-R, PCC-2-1/2-R, and PCH-2-1/2-R are functionally equivalent to the obsolete BK/PCC-2-1/2. All active variants provide ROHS3 compliance and maintain identical electrical performance. These parts are preferred for applications where design continuity and manufacturer consistency are required.

For Cross-Manufacturer Substitution: The Littelfuse TE5® 808 series parts 80812500075 and 80812500440 provide electrical equivalence with enhanced performance characteristics. These parts feature higher breaking capacity ratings (100 A AC, 10 kA DC versus 50 A AC, 5.9 kA DC) and lower melting I²t values, offering improved protection margins. Operating temperature range extends to -40°C to 125°C. Cross-manufacturer substitution is appropriate when enhanced performance specifications and extended temperature operation are compatible with application requirements.

Compliance Considerations: All active substitute parts carry ROHS3 compliance and cULus or CSA/UL approvals, meeting current regulatory standards. The original BK/PCC-2-1/2 is RoHS non-compliant; migration to compliant alternatives is recommended for new designs and long-term supply assurance.

Frequently Asked Questions (FAQ)

Q: Can the BK/PCC-2-1/2-R directly replace the obsolete BK/PCC-2-1/2?

A: Yes. The BK/PCC-2-1/2-R is a direct equivalent with identical electrical ratings (2.5 A, 250 V AC, 450 V DC), response time (fast-blow), and mechanical form factor. The primary difference is product status (active versus obsolete) and RoHS3 compliance. No circuit modifications are required.

Q: What is the difference between the Eaton PC-Tron® variants (BK/PCC-2-1/2-R, BK/PCB-2-1/2-R, BK/PCH-2-1/2-R, PCB-2-1/2-R, PCC-2-1/2-R, PCH-2-1/2-R)?

A: All Eaton variants share identical electrical specifications and mechanical dimensions. Differences exist in internal construction and packaging designation, but these do not affect electrical performance or interchangeability in the specified application. Selection among variants may depend on inventory availability and packaging requirements.

Q: Are the Littelfuse 80812500075 and 80812500440 suitable replacements?

A: Both Littelfuse parts provide electrical equivalence with identical current and voltage ratings. They feature enhanced breaking capacity (100 A AC, 10 kA DC) and lower melting I²t (0.0898), offering improved protection performance. Dimensional tolerance differences are within acceptable through-hole mounting parameters. These parts are suitable when enhanced performance specifications are compatible with application requirements.

Q: What are the dimensional differences between Eaton and Littelfuse parts?

A: Eaton parts measure 0.350" L x 0.184" W x 0.345" H (8.89mm x 4.67mm x 8.76mm). Littelfuse parts measure 0.350" L x 0.183" W x 0.350" H (8.90mm x 4.65mm x 8.90mm). Differences are minimal and within acceptable tolerances for through-hole radial mounting on standard PCB layouts.

Q: Are all substitute parts RoHS compliant?

A: All active substitute parts (Eaton and Littelfuse) are ROHS3 compliant. The original BK/PCC-2-1/2 is RoHS non-compliant. For applications subject to RoHS regulations, migration to compliant alternatives is required.

Q: What is the operating temperature range for each part?

A: Eaton PC-Tron® parts do not specify an operating temperature range in the provided data. Littelfuse TE5® 808 series parts operate from -40°C to 125°C. For applications requiring extended temperature operation, Littelfuse parts provide documented performance specifications.

Q: Can I use these parts interchangeably in existing designs?

A: Yes, within the constraints of identical electrical ratings and mechanical form factors. All substitute parts maintain 2.5 A current rating, 250 V AC / 450 V DC voltage ratings, and fast-blow response time. Through-hole radial mounting is consistent across all variants. No PCB layout modifications are required.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message