Bel Fuse Inc. 5TTP 7 Ceramic Cartridge Fuse - Equivalent & Substitute Parts

Part Overview

The Bel Fuse Inc. 5TTP 7 is a ceramic cartridge fuse rated at 7A, 125V AC/DC with slow-blow response characteristics. This component is classified as obsolete, making identification of suitable substitutes essential for ongoing system maintenance and component procurement. The 5mm x 20mm axial form factor and through-hole mounting design are standard for this fuse category. Locating equivalent parts ensures design continuity and system reliability for applications requiring this specific electrical and mechanical configuration.

Substiute Parts

5TTP 7

Bel Fuse Inc.In Stock: 10405TTP 7 Datasheet

Current PartRFQ

5TTP 7-R

Bel Fuse Inc.In Stock: 19215TTP 7-R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 5TTP 7 is determined by strict equivalence across the following critical parameters:

• Current Rating: 7 A (exact match required)
• Voltage Rating - AC: 125 V (exact match required)
• Fuse Type: Cartridge, Ceramic (exact match required)
• Response Time: Slow Blow (exact match required)
• Package / Case: 5mm x 20mm (Axial) (exact match required)
• Mounting Type: Through Hole (exact match required)
• Breaking Capacity @ Rated Voltage: 10kA (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (exact match required)

The substitute part 5TTP 7-R from Bel Fuse Inc. meets all critical electrical and mechanical parameters, ensuring direct functional equivalence. The primary distinction is product status: the original part is obsolete while the substitute is active, with improved compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The 5TTP 7-R is the direct equivalent substitute for the obsolete 5TTP 7. Both components share identical electrical ratings, mechanical dimensions, and thermal operating ranges. The substitute part offers the advantage of active product status, ensuring continued availability and supply chain reliability. Additionally, the 5TTP 7-R achieves ROHS3 compliance, whereas the original part does not meet current RoHS standards. For new designs or system upgrades, the 5TTP 7-R is the appropriate selection. For legacy system maintenance requiring the original part specification, the 5TTP 7-R provides full functional equivalence with enhanced regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can the 5TTP 7-R be used as a direct replacement for the 5TTP 7?

A: Yes. The 5TTP 7-R meets all critical electrical and mechanical specifications of the original part, including current rating, voltage rating, response time, package dimensions, and breaking capacity. Direct substitution is appropriate for all applications.

Q: What is the primary difference between these two parts?

A: The 5TTP 7 is classified as obsolete, while the 5TTP 7-R is an active product. The substitute part also achieves ROHS3 compliance, whereas the original does not. All functional electrical and mechanical parameters are identical.

Q: Are the physical dimensions identical?

A: Yes. Both parts use the same 5mm x 20mm (Axial) package with through-hole mounting. No PCB layout or mechanical redesign is required for substitution.

Q: Do both parts carry the same regulatory approvals?

A: Both parts carry CE, CSA, and PSE approvals. The 5TTP 7-R additionally meets ROHS3 compliance standards.

Q: What is the operating temperature range for both parts?

A: Both the 5TTP 7 and 5TTP 7-R operate across the range of -55°C to 125°C.

Q: Is the breaking capacity the same?

A: Yes. Both parts have a breaking capacity of 10kA at rated voltage.