5TTP 10 Equivalent & Substitute Parts

Part Overview

The 5TTP 10 is a ceramic cartridge fuse manufactured by Bel Fuse Inc., rated for 10 A at 125 V AC/DC with a slow-blow response characteristic. This component features a 5mm x 20mm axial form factor and is designed for through-hole mounting applications. The product is currently listed as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system maintenance and component sourcing.

Substiute Parts

5TTP 10

Bel Fuse Inc.In Stock: 11815TTP 10 Datasheet

Current PartRFQ

5TTP 10-R

Bel Fuse Inc.In Stock: 18265TTP 10-R Datasheet

DirectRFQ

BK/S506-V-10-R

Eaton - Electronics DivisionIn Stock: 1846BK/S506-V-10-R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 5TTP 10 is determined by the following critical parameters:

• Current Rating: 10 A (exact match required)
• Voltage Rating: Minimum 125 V AC (equal or higher acceptable)
• Package / Case: 5mm x 20mm axial form factor (mechanical compatibility)
• Mounting Type: Through Hole (circuit board integration requirement)
• Response Time: Slow Blow (circuit protection characteristic)

The 5TTP 10-R from Bel Fuse Inc. qualifies as a direct equivalent substitute, matching all critical parameters while offering active product status and improved RoHS3 compliance.

The BK/S506-V-10-R from Eaton Electronics Division qualifies as a similar substitute with the following distinction: it is a glass-type cartridge fuse rated for 250 V AC, which exceeds the 125 V requirement. This higher voltage rating provides additional safety margin in applications where the 125 V specification is not a limiting constraint. The mechanical form factor and current rating remain identical.

Parameter Comparison

Engineering Selection Recommendations

For applications requiring direct replacement of the obsolete 5TTP 10, the 5TTP 10-R is the primary substitute. Both components are manufactured by Bel Fuse Inc., share identical electrical ratings and response characteristics, and maintain the same mechanical form factor. The 5TTP 10-R offers the additional advantage of active product status and ROHS3 compliance, addressing regulatory requirements for new designs and long-term availability.

The BK/S506-V-10-R from Eaton Electronics Division serves as an alternative where higher voltage rating tolerance is acceptable. This glass-type fuse maintains the same current rating, response time, and mechanical dimensions. The 250 V AC rating provides operational margin above the 125 V specification. Selection of this alternative should be based on circuit design requirements and voltage headroom considerations. The BK/S506-V-10-R carries broader international approvals including BSI, VDE, and IMQ certifications.

Frequently Asked Questions (FAQ)

Q: Can the 5TTP 10-R be used as a direct replacement for the 5TTP 10?

A: Yes. Both components share identical current ratings (10 A), voltage ratings (125 V AC), response characteristics (slow blow), and mechanical form factors (5mm x 20mm axial). The 5TTP 10-R is manufactured by the same supplier and is the recommended substitute for obsolete 5TTP 10 applications.

Q: What is the difference between ceramic and glass fuse types in this comparison?

A: The 5TTP 10 and 5TTP 10-R are ceramic cartridge fuses, while the BK/S506-V-10-R is a glass cartridge fuse. Both types function as current-limiting protective devices with identical mechanical mounting and electrical current ratings. The material difference does not affect compatibility in standard through-hole circuit board applications.

Q: Why does the BK/S506-V-10-R have a 250 V rating instead of 125 V?

A: The BK/S506-V-10-R is rated for 250 V AC, which exceeds the 125 V specification of the 5TTP 10. This higher voltage rating is acceptable for substitution in circuits designed for 125 V operation, as the fuse will provide equivalent protection at the lower voltage. Selection should confirm that the circuit design permits use of a higher-rated component.

Q: Are there compliance differences between the substitute parts?

A: The 5TTP 10 is RoHS non-compliant and obsolete. Both 5TTP 10-R and BK/S506-V-10-R are ROHS3 compliant and carry active product status. The BK/S506-V-10-R carries a broader set of international certifications (BSI, VDE, IMQ, SEMKO) compared to the 5TTP 10-R (CE, CSA, cULus, PSE).

Q: Can these fuses be used interchangeably in the same circuit board?

A: Yes, all three components share the identical 5mm x 20mm axial form factor and through-hole mounting configuration. Physical installation is interchangeable. Electrical performance differences are minimal and relate to voltage rating and material composition, neither of which affects mechanical fit or basic circuit protection function.