C310T-6-3-R-TRS Equivalent & Substitute Parts

Part Overview

The C310T-6-3-R-TRS is a ceramic cartridge fuse manufactured by Eaton - Electronics Division, rated for 6.3 A at 250 V AC/DC with slow-blow response characteristics. This component is classified as Obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support legacy system maintenance where this fuse type is specified in circuit protection applications.

Substiute Parts

C310T-6-3-R-TRS

Eaton - Electronics DivisionIn Stock: 748C310T-6-3-R-TRS Datasheet

Current PartRFQ

C310T-SC-6-3-R-TR2

Eaton - Electronics DivisionIn Stock: 975C310T-SC-6-3-R-TR2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the C310T-6-3-R-TRS is determined by strict equivalence across the following electrical and mechanical parameters:

• Current Rating: Must be 6.3 A
• Voltage Rating (AC): Must be 250 V
• Fuse Type: Must be Cartridge, Ceramic
• Response Time: Must be Slow Blow
• Mounting Type: Must be Through Hole
• Breaking Capacity: Must be 63 A at rated voltage

The substitute part C310T-SC-6-3-R-TR2 meets all these core electrical requirements. Physical dimensions differ slightly (0.142" Dia x 0.394" L versus 0.157" Dia x 0.453" L), which reflects design evolution within the same product family while maintaining functional compatibility in standard through-hole mounting applications.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: C310T-SC-6-3-R-TR2

The C310T-SC-6-3-R-TR2 is the recommended substitute for the obsolete C310T-6-3-R-TRS. Selection rationale is based on:

1. Electrical Equivalence: Identical current rating (6.3 A), voltage rating (250 V AC), response time (Slow Blow), and breaking capacity (63 A).

2. Product Status: The substitute is Active status, ensuring ongoing availability and supply chain support, whereas the main part is Obsolete.

3. Regulatory Compliance: The substitute carries expanded approval certifications (CQC, cURus, KC, TUV, VDE) and RoHS Compliance status, meeting modern regulatory requirements.

4. Physical Compatibility: Both components are Through Hole mounted axial cartridge fuses with non-standard dimensions. The substitute's smaller physical footprint (3.60mm x 10.00mm versus 4.00mm x 11.50mm) is compatible with standard through-hole mounting applications.

5. Functional Performance: DC Cold Resistance differs (7.1 mOhms versus 163.6 mOhms), reflecting improved design in the active substitute. This lower resistance is consistent with modern ceramic fuse technology and does not affect circuit protection function.

Frequently Asked Questions (FAQ)

Q: Can C310T-SC-6-3-R-TR2 be used as a direct replacement for C310T-6-3-R-TRS?

A: Yes. Both components share identical electrical specifications: 6.3 A current rating, 250 V AC voltage rating, Slow Blow response, and 63 A breaking capacity. Both are ceramic cartridge fuses with Through Hole axial mounting. The substitute is the active product from the same manufacturer family.

Q: What is the significance of the different physical dimensions?

A: The C310T-SC-6-3-R-TR2 is slightly smaller (0.142" Dia x 0.394" L) compared to the C310T-6-3-R-TRS (0.157" Dia x 0.453" L). This reflects design evolution within the C310T product family. Both dimensions are compatible with standard through-hole fuse holders and mounting applications. Physical size difference does not affect electrical performance or circuit protection function.

Q: Why is the DC Cold Resistance different between the two parts?

A: The C310T-SC-6-3-R-TR2 exhibits lower DC Cold Resistance (7.1 mOhms) compared to the main part (163.6 mOhms). This difference reflects improved manufacturing and material technology in the active substitute. Lower resistance is a design improvement and does not compromise circuit protection or fuse operation.

Q: What certifications does the substitute carry?

A: The C310T-SC-6-3-R-TR2 carries certifications from CQC, cURus, KC, TUV, and VDE, with RoHS Compliance status. The obsolete main part carries CQC, cURus, KTL, and TUV certifications. The substitute's expanded certification profile supports compliance with current regulatory standards.

Q: Is the substitute RoHS compliant?

A: Yes. The C310T-SC-6-3-R-TR2 is RoHS Compliant. RoHS status is not specified for the obsolete C310T-6-3-R-TRS.

Q: Are there other substitute options listed?

A: The C310T-SC-6-3-R-TR2 documentation references additional substitute part numbers: C310T-SC-6-3-R-TR1 and 087706.3MRET1P. These are equivalent alternatives within the same product family and substitution group.