Equivalent & Substitute Parts for TR/PCB-1

Part Overview

The TR/PCB-1 is a 1 A, 250 V AC / 450 V DC board mount fuse manufactured by Eaton - Electronics Division under the PC-Tron® series. This through-hole radial fuse is designed for fast-blow response applications requiring CSA and UL approval. The TR/PCB-1 is classified as obsolete product status. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications currently utilizing this component.

Substiute Parts

TR/PCB-1

Eaton - Electronics DivisionIn Stock: 1029TR/PCB-1 Datasheet

Current PartRFQ

TR/PCB-1-R

Eaton - Electronics DivisionIn Stock: 4734TR/PCB-1-R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TR/PCB-1 is determined by strict equivalence across the following electrical and mechanical parameters:

• Current Rating: 1 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)
• Fuse Type: Board Mount (Cartridge Style Excluded) (exact match required)
• Package / Case: Radial, Box (exact match required)
• Breaking Capacity @ Rated Voltage: 50 A AC, 5.9 kA DC (exact match required)
• Melting I²t: 0.02 (exact match required)
• Approval Agency: CSA, UL (exact match required)
• Physical Dimensions: 0.350" L x 0.184" W x 0.345" H (exact match required)

The TR/PCB-1-R qualifies as a direct substitute based on complete alignment with all specified electrical and mechanical parameters. Packaging format differences (Box versus Cut Tape) do not affect functional equivalence or circuit performance.

Parameter Comparison

Engineering Selection Recommendations

The TR/PCB-1-R is the direct functional equivalent of the TR/PCB-1. All electrical parameters, mechanical dimensions, mounting characteristics, and regulatory certifications (CSA, UL) are identical between the two parts.

Product Status Consideration: The TR/PCB-1 is classified as obsolete, while the TR/PCB-1-R maintains active product status. For new designs and ongoing production, the TR/PCB-1-R is the appropriate selection to ensure long-term component availability and supply chain continuity.

Compliance Consideration: The TR/PCB-1-R is ROHS3 compliant, whereas the TR/PCB-1 is RoHS non-compliant. Applications subject to RoHS regulatory requirements must utilize the TR/PCB-1-R.

Packaging Consideration: The TR/PCB-1 is supplied in Box packaging, while the TR/PCB-1-R is supplied in Cut Tape (CT) packaging. Packaging format does not affect electrical performance or circuit compatibility. Selection between packaging options depends on assembly process requirements and inventory management practices.

Frequently Asked Questions (FAQ)

Q: Can TR/PCB-1-R be used as a direct replacement for TR/PCB-1 in existing circuits?

A: Yes. The TR/PCB-1-R is electrically and mechanically equivalent to the TR/PCB-1. All current ratings, voltage ratings, response characteristics, breaking capacity, and physical dimensions are identical. Direct substitution is functionally valid.

Q: What is the difference between Box and Cut Tape packaging?

A: Box packaging supplies components in bulk quantities within a box container. Cut Tape (CT) packaging supplies components on continuous tape, typically used for automated assembly processes. Both packaging formats contain identical components with no functional differences.

Q: Why is the TR/PCB-1 listed as obsolete?

A: Obsolete status indicates the TR/PCB-1 is no longer in active production. The TR/PCB-1-R serves as the active production equivalent. For new applications and ongoing supply requirements, the TR/PCB-1-R should be specified.

Q: Does RoHS3 compliance affect circuit performance?

A: RoHS3 compliance relates to material composition and environmental regulatory adherence, not electrical performance. The TR/PCB-1-R delivers identical electrical characteristics to the TR/PCB-1. RoHS3 compliance is a regulatory requirement for applications subject to environmental directives.

Q: Are the physical dimensions identical between TR/PCB-1 and TR/PCB-1-R?

A: Yes. Both parts measure 0.350" L x 0.184" W x 0.345" H (8.89 mm x 4.67 mm x 8.76 mm). PCB footprint and mounting hole spacing are identical, enabling direct board-level substitution without layout modifications.

Q: What certifications apply to both parts?

A: Both TR/PCB-1 and TR/PCB-1-R carry CSA and UL approval certifications, meeting North American regulatory standards for fuse components in board mount applications.