Equivalent & Substitute Parts for BK/PCB-2-SD

Part Overview

The BK/PCB-2-SD is a 2 A, 250 V AC / 450 V DC board mount fuse manufactured by Eaton - Electronics Division, part of the PC-Tron® series. This component is classified as obsolete, with 857 pieces currently in stock. The fuse features fast blow response characteristics, radial box package configuration, and through-hole mounting for PCB integration. Due to its obsolete product status, equivalent and substitute parts from active product lines are necessary for new designs, production continuity, and long-term component availability.

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)
Approval Agency	CSA, UL
Breaking Capacity @ Rated Voltage	50A AC, 5.9kA DC
Melting I²t	0.2

Substitute Part Grouping Explanation

Substitution for BK/PCB-2-SD is determined by strict equivalence across the following critical parameters:

Primary Substitution Criteria:

Current Rating: 2 A (exact match required)
Voltage Rating - AC: 250 V (exact match required)
Voltage Rating - DC: 450 V (exact match required)
Response Time: Fast Blow (exact match required)
Mounting Type: Through Hole (exact match required)
Package / Case: Radial, Box (exact match required)
Physical Dimensions: 0.350" L x 0.184" W x 0.345" H (exact match required)

Substitute parts are grouped into two categories:

Eaton PC-Tron® Series (Active Status): BK/PCB-2-R, BK/PCC-2-R, BK/PCF-2-R, BK/PCH-2-R, PCB-2-R, PCC-2-R, PCF-2-R, PCH-2-R. These parts maintain identical electrical and mechanical specifications to BK/PCB-2-SD with upgraded RoHS3 compliance and active product status.
Littelfuse TE5® 808 Series (Active Status): 80812000075 and 80812000440. These parts meet all primary substitution criteria with enhanced breaking capacity (100A AC, 10kA DC versus 50A AC, 5.9kA DC) and extended operating temperature range (-40°C ~ 125°C).

Parameter Comparison

Part Number	Manufacturer	Series	Current (A)	Voltage AC (V)	Voltage DC (V)	Response Time	Breaking Capacity AC	Breaking Capacity DC	Melting I²t	Product Status	RoHS Status	Inventory (Pcs)
BK/PCB-2-SD	Eaton	PC-Tron®	2	250	450	Fast Blow	50A	5.9kA	0.2	Obsolete	RoHS non-compliant	857
BK/PCB-2-R	Eaton	PC-Tron®	2	250	450	Fast Blow	50A	5.9kA	0.2	Active	ROHS3 Compliant	2481
BK/PCC-2-R	Eaton	PC-Tron®	2	250	450	Fast Blow	50A	5.9kA	0.2	Active	ROHS3 Compliant	6446
BK/PCF-2-R	Eaton	PC-Tron®	2	250	450	Fast Blow	50A	5.9kA	0.2	Active	ROHS3 Compliant	966
BK/PCH-2-R	Eaton	PC-Tron®	2	250	450	Fast Blow	50A	5.9kA	0.2	Active	ROHS3 Compliant	921
PCB-2-R	Eaton	PC-Tron®	2	250	450	Fast Blow	50A	5.9kA	0.2	Active	ROHS3 Compliant	810
PCC-2-R	Eaton	PC-Tron®	2	250	450	Fast Blow	50A	5.9kA	0.2	Active	ROHS3 Compliant	965
PCF-2-R	Eaton	PC-Tron®	2	250	450	Fast Blow	50A	5.9kA	0.2	Active	ROHS3 Compliant	1020
PCH-2-R	Eaton	PC-Tron®	2	250	450	Fast Blow	50A	5.9kA	0.2	Active	ROHS3 Compliant	1165
80812000075	Littelfuse	TE5® 808	2	250	450	Fast Blow	100A	10kA	0.061	Active	ROHS3 Compliant	965
80812000440	Littelfuse	TE5® 808	2	250	450	Fast Blow	100A	10kA	0.061	Active	ROHS3 Compliant	1844

Engineering Selection Recommendations

For Direct Replacement (Identical Electrical and Mechanical Performance):

Select from the Eaton PC-Tron® active series: BK/PCB-2-R, BK/PCC-2-R, BK/PCF-2-R, BK/PCH-2-R, PCB-2-R, PCC-2-R, PCF-2-R, or PCH-2-R. These parts provide parametric equivalence to BK/PCB-2-SD with the advantage of active product status and RoHS3 compliance. BK/PCC-2-R offers the highest inventory availability (6446 pieces), ensuring supply chain continuity.

For Enhanced Performance Applications:

Select Littelfuse 80812000075 or 80812000440 from the TE5® 808 series. These parts maintain identical electrical ratings (2 A, 250 V AC, 450 V DC, Fast Blow) and physical dimensions but provide superior breaking capacity (100A AC, 10kA DC versus 50A AC, 5.9kA DC) and extended operating temperature range (-40°C ~ 125°C). The lower melting I²t value (0.061 versus 0.2) indicates faster response characteristics. Part 80812000440 provides higher inventory availability (1844 pieces).

Compliance Considerations:

All substitute parts carry RoHS3 compliance and cULus or CSA/UL approvals, meeting modern regulatory requirements. The original BK/PCB-2-SD is RoHS non-compliant; substitution with active parts resolves compliance gaps for new designs and production runs.

Frequently Asked Questions (FAQ)

Q: Can BK/PCB-2-SD be directly replaced with any of the Eaton PC-Tron® active series parts?

A: Yes. BK/PCB-2-R, BK/PCC-2-R, BK/PCF-2-R, BK/PCH-2-R, PCB-2-R, PCC-2-R, PCF-2-R, and PCH-2-R are parametric equivalents with identical current rating (2 A), voltage ratings (250 V AC, 450 V DC), response time (Fast Blow), mounting type (Through Hole), package configuration (Radial, Box), and physical dimensions (0.350" L x 0.184" W x 0.345" H).

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

A: Both meet the primary substitution criteria. Littelfuse TE5® 808 parts (80812000075, 80812000440) provide enhanced breaking capacity (100A AC, 10kA DC versus 50A AC, 5.9kA DC), extended operating temperature range (-40°C ~ 125°C), and lower melting I²t (0.061 versus 0.2). Eaton PC-Tron® parts maintain identical electrical performance characteristics to the original BK/PCB-2-SD.

Q: Are the physical dimensions identical across all substitute parts?

A: Eaton PC-Tron® substitutes maintain the exact dimensions of BK/PCB-2-SD (0.350" L x 0.184" W x 0.345" H / 8.89mm x 4.67mm x 8.76mm). Littelfuse TE5® 808 parts have marginally different dimensions (0.350" L x 0.183" W x 0.350" H / 8.90mm x 4.65mm x 8.90mm), which remain compatible with standard through-hole PCB layouts designed for radial box fuses.

Q: Which substitute part offers the best inventory availability?

A: BK/PCC-2-R from the Eaton PC-Tron® series provides the highest inventory (6446 pieces), followed by PCH-2-R (1165 pieces) and 80812000440 from Littelfuse (1844 pieces).

Q: Do all substitute parts carry the same regulatory approvals as BK/PCB-2-SD?

A: Eaton PC-Tron® substitutes carry CSA and UL approvals matching the original. Littelfuse TE5® 808 parts carry cULus approval, which encompasses both CSA and UL standards. All substitute parts are RoHS3 compliant, whereas BK/PCB-2-SD is RoHS non-compliant.

Q: Can Littelfuse 80812000075 and 80812000440 be used interchangeably?

A: Yes. Both parts are from the TE5® 808 series with identical electrical specifications, response time, breaking capacity, and physical dimensions. The primary difference is inventory availability, with 80812000440 offering higher stock (1844 pieces versus 965 pieces).

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message