Equivalent & Substitute Parts for TR/PCB-2

Part Overview

The TR/PCB-2 is a 2 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 part is currently classified as obsolete, with 1151 pieces available in new original stock. Identifying equivalent substitute parts is necessary to ensure design continuity and maintain supply chain reliability for applications currently utilizing this component.

Substiute Parts

TR/PCB-2

Eaton - Electronics DivisionIn Stock: 1213TR/PCB-2 Datasheet

Current PartRFQ

TR/PCB-2-R

Eaton - Electronics DivisionIn Stock: 4264TR/PCB-2-R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TR/PCB-2 is determined by strict equivalence across the following electrical and mechanical parameters:

• 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)
• Fuse Type: Board Mount (Cartridge Style Excluded) (exact match required)
• Mounting Type: Through Hole (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: 0.2 (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-2-R qualifies as a direct substitute because it maintains identical electrical specifications, breaking capacity, thermal characteristics, and physical dimensions. The primary distinction is product status and packaging format.

Parameter Comparison

Engineering Selection Recommendations

The TR/PCB-2-R is the direct substitute for the TR/PCB-2. Selection between these parts should be based on the following factors:

Product Status: The TR/PCB-2 is classified as obsolete, while the TR/PCB-2-R maintains active product status. For new designs or long-term supply chain planning, the TR/PCB-2-R is the appropriate selection.

Regulatory Compliance: The TR/PCB-2-R is ROHS3 compliant, whereas the TR/PCB-2 is RoHS non-compliant. Applications subject to RoHS regulations require the TR/PCB-2-R.

Packaging Format: The TR/PCB-2 is supplied in box packaging, while the TR/PCB-2-R is supplied in cut tape (CT) format. Packaging selection depends on assembly process requirements and inventory management practices.

Inventory Availability: The TR/PCB-2-R has higher inventory availability (4160 pieces) compared to the TR/PCB-2 (1151 pieces), supporting improved supply chain reliability.

All electrical and mechanical parameters are identical between the two parts, ensuring functional equivalence in circuit applications.

Frequently Asked Questions (FAQ)

Q: Can TR/PCB-2-R be used as a direct replacement for TR/PCB-2 in existing designs?

A: Yes. The TR/PCB-2-R is electrically and mechanically identical to the TR/PCB-2. All critical parameters including current rating, voltage ratings, breaking capacity, response time, and physical dimensions are equivalent. The parts are interchangeable from a functional standpoint.

Q: What is the difference between box packaging and cut tape (CT) packaging?

A: Box packaging supplies components in bulk quantities within a box container, suitable for manual assembly or small-scale production. Cut tape (CT) packaging supplies components on continuous tape that is cut to specified lengths, optimized for automated pick-and-place assembly equipment. Selection depends on manufacturing process requirements.

Q: Why is the TR/PCB-2 classified as obsolete?

A: The TR/PCB-2 is obsolete, meaning Eaton - Electronics Division has discontinued active production and support for this part number. The TR/PCB-2-R represents the current active equivalent and should be used for new designs and ongoing supply requirements.

Q: Does RoHS3 compliance affect electrical performance?

A: No. RoHS3 compliance relates to material composition and environmental restrictions, not electrical performance. The TR/PCB-2-R maintains identical electrical specifications to the TR/PCB-2 while meeting RoHS3 material requirements.

Q: Are the physical dimensions identical between TR/PCB-2 and TR/PCB-2-R?

A: Yes. Both parts have identical dimensions of 0.350" L x 0.184" W x 0.345" H (8.89 mm x 4.67 mm x 8.76 mm), ensuring mechanical compatibility in PCB layouts and through-hole mounting applications.

Q: What approval agencies certify these fuses?

A: Both the TR/PCB-2 and TR/PCB-2-R carry CSA and UL approvals, meeting North American safety standards for board mount fuses.