TR35R Equivalent & Substitute Parts

Part Overview

The TR35R is a 250V 35A fuse cartridge manufactured by Mersen USA Newburyport-MA L.L.C., classified as an RK5 time-delay fuse in a 3X13/16 form factor. This component is actively produced and maintains ROHS3 compliance. Equivalent and substitute parts are identified based on matching electrical ratings, mechanical dimensions, and functional classifications to ensure direct interchangeability in circuit protection applications.

Substiute Parts

TR35R

Mersen USA Newburyport-MA L.L.C.In Stock: 1093TR35R Datasheet

Current PartRFQ

FRN-R-35

Eaton - Bussmann Electrical DivisionIn Stock: 899FRN-R-35 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TR35R is determined by the following critical parameters:

• Current Rating: 35A (exact match required)
• Voltage Rating - AC: 250V (exact match required)
• Fuse Class: RK5 (exact match required)
• Response Time: Time-delay (slow blow) characteristic
• Mechanical Compatibility: Cartridge form factor compatible with RK5 holders

The FRN-R-35 manufactured by Eaton - Bussmann Electrical Division meets these substitution criteria. Both parts share identical electrical ratings (35A, 250VAC), RK5 classification, and time-delay response characteristics. Mechanical compatibility is maintained through standard cartridge fuse holder requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the TR35R and FRN-R-35 are active production components suitable for circuit protection in electrical and industrial applications. Selection between these parts should be based on:

• Compliance Requirements: The FRN-R-35 carries CE, CSA, and UL certifications. Verify that your application requirements align with available certifications for each part.
• RoHS Status: The TR35R is ROHS3 compliant. The FRN-R-35 is RoHS non-compliant. Applications subject to RoHS regulations must use the TR35R.
• DC Voltage Capability: The FRN-R-35 is rated for 125VDC operation. If DC voltage protection is required, the FRN-R-35 provides this capability; the TR35R specification does not include DC ratings.
• Holder Compatibility: The FRN-R-35 requires a dedicated holder. Ensure your existing installation uses a compatible RK5 cartridge fuse holder.

Frequently Asked Questions (FAQ)

Q: Can the FRN-R-35 directly replace the TR35R in all applications?

A: Direct replacement is possible only when RoHS compliance is not a regulatory requirement. Both parts share identical AC voltage and current ratings and RK5 classification. However, if your application is subject to RoHS regulations, the TR35R must be used due to its ROHS3 compliance status.

Q: What is the significance of RK5 classification for substitution?

A: RK5 is a fuse class designation that defines the interrupting rating and time-delay characteristics. Both the TR35R and FRN-R-35 are RK5-classified fuses, ensuring equivalent protection performance and holder compatibility.

Q: Does the FRN-R-35 require special installation considerations?

A: The FRN-R-35 is a cartridge fuse that requires a holder. Ensure your circuit protection assembly includes a compatible RK5 cartridge fuse holder. The TR35R operates under the same mechanical requirement.

Q: Are there voltage rating differences between these parts?

A: Both parts are rated for 250VAC operation. The FRN-R-35 additionally supports 125VDC operation. If your application requires DC voltage protection, the FRN-R-35 provides this extended capability.

Q: What certifications should I verify for my application?

A: The FRN-R-35 carries CE, CSA, and UL certifications. Confirm that these certifications meet your application's regulatory and safety standards. The TR35R certification status should be verified with the manufacturer for your specific application requirements.