Equivalent & Substitute Parts for BK/PCH-5-R Board Mount Fuse

Part Overview

The BK/PCH-5-R is a 5 A, 125 V AC board mount fuse manufactured by Eaton - Electronics Division under the PC-Tron® series. This through-hole radial fuse is designed for fast-blow response in circuit protection applications requiring board-level mounting. The part is currently active in production with 761 pieces in stock inventory. Alternative equivalent and similar parts are available to support design flexibility, supply chain continuity, and application-specific voltage or certification requirements.

Substiute Parts

BK/PCH-5-R

Eaton - Electronics DivisionIn Stock: 865BK/PCH-5-R Datasheet

Current PartRFQ

BK/PCD-5-R

Eaton - Electronics DivisionIn Stock: 12364BK/PCD-5-R Datasheet

Parametric EquivalentRFQ

BK/PCI-5-R

Eaton - Electronics DivisionIn Stock: 816BK/PCI-5-R Datasheet

Parametric EquivalentRFQ

80815000000

Littelfuse Inc.In Stock: 280880815000000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BK/PCH-5-R is determined by the following critical parameters:

Primary Matching Criteria:

• Current Rating: 5 A (exact match required)
• Fuse Type: Board Mount (Cartridge Style Excluded)
• Mounting Type: Through Hole
• Response Time: Fast Blow
• Package / Case: Radial, Box
• Physical Dimensions: 0.350" L x 0.184" W x 0.345" H

Voltage Compatibility Considerations:

• AC Voltage Rating: 125 V minimum
• DC Voltage Rating: When specified, must equal or exceed application requirements

Compliance Requirements:

• RoHS3 Compliance required
• Approval agencies (CSA, UL, cULus) enhance suitability but are not mandatory for basic substitution

Substitute Classification:

Parametric Equivalents (BK/PCD-5-R, BK/PCI-5-R): These parts match all primary criteria and share identical current, AC voltage, mounting, and physical specifications. Both feature enhanced DC voltage ratings (400 V DC) and higher breaking capacity ratings, making them suitable for applications requiring extended voltage range coverage.

Similar Part (80815000000): This Littelfuse Inc. TE5® 808 series fuse matches current rating, fuse type, mounting, and response time. It features higher AC/DC voltage ratings (250 V AC / 250 V DC) and different breaking capacity specifications. Physical dimensions are nearly identical with minor tolerance variations.

Parameter Comparison

Engineering Selection Recommendations

For Direct Substitution (Parametric Equivalents):

BK/PCD-5-R and BK/PCI-5-R are parametric equivalents suitable for direct substitution in applications currently using BK/PCH-5-R. Both parts maintain identical current rating, AC voltage rating, mounting configuration, and physical dimensions. The addition of 400 V DC voltage rating in these equivalents provides enhanced capability for dual-voltage applications without compromising 125 V AC performance. Both parts carry CSA and UL approvals and maintain ROHS3 compliance. BK/PCD-5-R offers superior inventory availability (12292 pieces) compared to BK/PCI-5-R (742 pieces).

For Extended Voltage Applications:

The Littelfuse 80815000000 (TE5® 808 series) is suitable when applications require higher voltage ratings (250 V AC / 250 V DC). This part maintains the 5 A current rating, fast-blow response, through-hole radial mounting, and board mount configuration. Physical dimensions are nearly identical with minor width and height variations (0.183" W vs 0.184" W; 0.350" H vs 0.345" H). The part carries cULus certification and ROHS3 compliance. Operating temperature range (-40°C ~ 125°C) is specified for this part. Selection of this part is appropriate only when application voltage requirements exceed 125 V AC or when higher breaking capacity (100A AC, 10kA DC) is required.

Compliance and Certification:

All substitute parts maintain ROHS3 compliance and active product status. BK/PCD-5-R and BK/PCI-5-R carry CSA and UL approvals. The Littelfuse part carries cULus certification. Selection should be based on specific application certification requirements.

Frequently Asked Questions (FAQ)

Q: Can BK/PCD-5-R or BK/PCI-5-R be used as direct replacements for BK/PCH-5-R?

A: Yes. Both BK/PCD-5-R and BK/PCI-5-R are parametric equivalents with identical current rating (5 A), AC voltage rating (125 V), fuse type, mounting type, response time, package configuration, and physical dimensions. The addition of 400 V DC rating does not affect 125 V AC operation.

Q: What is the difference between BK/PCD-5-R and BK/PCI-5-R?

A: Both parts are parametric equivalents with identical electrical and mechanical specifications. The primary difference is inventory availability: BK/PCD-5-R has 12292 pieces in stock, while BK/PCI-5-R has 742 pieces.

Q: When should I use the Littelfuse 80815000000 instead of Eaton equivalents?

A: The Littelfuse 80815000000 should be selected when your application requires voltage ratings higher than 125 V AC or 400 V DC, or when higher breaking capacity (100A AC, 10kA DC) is specified. This part is rated for 250 V AC / 250 V DC operation.

Q: Are there physical dimension differences between substitute parts?

A: BK/PCH-5-R, BK/PCD-5-R, and BK/PCI-5-R share identical dimensions (0.350" L x 0.184" W x 0.345" H). The Littelfuse 80815000000 has minor variations: 0.350" L x 0.183" W x 0.350" H. These differences are within typical PCB layout tolerances for through-hole radial components.

Q: Do all substitute parts have the same approval certifications?

A: No. BK/PCD-5-R and BK/PCI-5-R carry CSA and UL approvals. The Littelfuse 80815000000 carries cULus certification. Selection should align with your application's certification requirements.

Q: Are all parts RoHS3 compliant?

A: Yes. BK/PCH-5-R, BK/PCD-5-R, BK/PCI-5-R, and 80815000000 are all ROHS3 compliant.

Q: What is the packaging difference between Eaton and Littelfuse parts?

A: Eaton parts (BK/PCH-5-R, BK/PCD-5-R, BK/PCI-5-R) are supplied in Bulk packaging. The Littelfuse 80815000000 is supplied in Cut Tape (CT) packaging. Packaging format does not affect component performance or compatibility.

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

A: Yes, provided all parts meet your application's voltage, current, and certification requirements. However, using a single part number throughout a design simplifies procurement, inventory management, and traceability.