PCH-3-R Equivalent & Substitute Parts

Part Overview

The PCH-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 circuit protection in electronic equipment. The part maintains Active product status with CSA and UL approval certifications. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and regulatory compliance are maintained across alternative part numbers within the same manufacturer's product line.

Substiute Parts

PCH-3-R

Eaton - Electronics DivisionIn Stock: 976PCH-3-R Datasheet

Current PartRFQ

BK/PCH-3-R

Eaton - Electronics DivisionIn Stock: 1745BK/PCH-3-R Datasheet

DirectRFQ

BK/PCB-3-R

Eaton - Electronics DivisionIn Stock: 20155BK/PCB-3-R Datasheet

Parametric EquivalentRFQ

BK/PCC-3-R

Eaton - Electronics DivisionIn Stock: 2654BK/PCC-3-R Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PCH-3-R are identified based on strict electrical and mechanical parameter equivalence. All substitute parts maintain identical specifications across the following critical parameters:

• Current Rating: 3 A
• Voltage Rating - AC: 250 V
• Voltage Rating - DC: 450 V
• Response Time: Fast Blow
• Mounting Type: Through Hole
• Package / Case: Radial, Box
• Breaking Capacity @ Rated Voltage: 50A AC, 4.4kA DC
• Melting I²t: 0.75
• Physical Dimensions: 0.350" L x 0.184" W x 0.345" H (8.89mm x 4.67mm x 8.76mm)
• Approval Agencies: CSA, UL
• RoHS Compliance: ROHS3 Compliant
• Series: PC-Tron®
• Manufacturer: Eaton - Electronics Division

Substitution is valid when all parameters listed above are identical between the main part and substitute part. Variations in part numbering reflect internal manufacturer designations without affecting functional or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed—BK/PCH-3-R, BK/PCB-3-R, and BK/PCC-3-R—are functionally equivalent to the PCH-3-R and maintain Active product status. Each part carries identical CSA and UL certifications and meets ROHS3 compliance requirements. Selection among these equivalent parts may be based on inventory availability or internal supply chain requirements, as all parts satisfy identical electrical, mechanical, and regulatory specifications for 3 A board mount fuse applications rated at 250 V AC and 450 V DC.

Frequently Asked Questions (FAQ)

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

A: Yes. All substitute parts maintain 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), mounting configuration (through-hole radial), and regulatory certifications (CSA, UL). Direct substitution is valid in circuit designs specified for PCH-3-R.

Q: What determines whether a part is a valid substitute for PCH-3-R?

A: Valid substitutes must match all critical parameters: current rating (3 A), AC voltage rating (250 V), DC voltage rating (450 V), response time (fast-blow), fuse type (board mount, cartridge style excluded), mounting type (through-hole), package configuration (radial, box), breaking capacity (50A AC, 4.4kA DC), melting I²t (0.75), physical dimensions, and approval certifications (CSA, UL).

Q: Are there differences in performance between PCH-3-R and its substitutes?

A: No. All parts are specified identically across electrical performance, mechanical characteristics, and regulatory compliance. Differences in part numbering reflect manufacturer internal designations only.

Q: What is the significance of the PC-Tron® series designation?

A: PC-Tron® is the product series identifier for this fuse family manufactured by Eaton - Electronics Division. All substitute parts belong to the same series and share identical design specifications.

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

A: Yes. All parts are rated for 250 V AC and 450 V DC operation, enabling use in dual-voltage applications within these specified limits.

Q: What does ROHS3 compliance indicate?

A: ROHS3 compliance indicates that all parts meet Restriction of Hazardous Substances Directive requirements and are free from specified hazardous materials.

Q: Are there inventory considerations when selecting among substitute parts?

A: Inventory levels differ among substitute parts. BK/PCB-3-R maintains the highest inventory (20,099 pcs), followed by BK/PCH-3-R (1,690 pcs) and BK/PCC-3-R (2,551 pcs). Selection may account for supply availability and lead time requirements.