Equivalent & Substitute Parts for 5HTP 1.6

Part Overview

The 5HTP 1.6 is a ceramic cartridge fuse manufactured by Bel Fuse Inc., rated for 1.6 A at 250 V AC with a slow-blow response characteristic. This component is designed for through-hole mounting in a 5mm x 20mm axial package format. The main part number 5HTP 1.6 has reached obsolete status, making substitute parts necessary for ongoing system support and new designs. Identifying equivalent alternatives ensures continuity of supply while maintaining electrical and mechanical compatibility.

Substiute Parts

5HTP 1.6

Bel Fuse Inc.In Stock: 11235HTP 1.6 Datasheet

Current PartRFQ

5HTP 1.6-R

Bel Fuse Inc.In Stock: 17975HTP 1.6-R Datasheet

DirectRFQ

0001.2506.PT

SCHURTER Inc.In Stock: 33140001.2506.PT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 5HTP 1.6 are qualified based on the following critical parameters:

• Current Rating: 1.6 A (exact match required)
• Voltage Rating (AC): 250 V (minimum requirement)
• Fuse Type: Cartridge, Ceramic (form factor and technology match)
• Response Time: Slow Blow (thermal response characteristic)
• Package / Case: 5mm x 20mm (Axial) (physical and electrical interface)
• Mounting Type: Through Hole (circuit board integration method)
• Breaking Capacity: 1.5 kA (fault current handling capability)
• Operating Temperature Range: -55°C ~ 125°C (environmental compatibility)

Two substitute parts meet these criteria: 5HTP 1.6-R (Bel Fuse Inc.) and 0001.2506.PT (SCHURTER Inc.). Both maintain identical current ratings, AC voltage ratings, fuse type, response time, package dimensions, and mounting configuration. The 0001.2506.PT additionally provides 300 V DC rating, extending application flexibility without compromising AC performance.

Parameter Comparison

Engineering Selection Recommendations

The 5HTP 1.6-R is the direct functional equivalent from the same manufacturer, maintaining identical electrical characteristics and mechanical form factor. This part is currently in active production status with ROHS3 compliance, making it the primary choice for direct replacement in existing designs.

The 0001.2506.PT from SCHURTER Inc. provides equivalent AC performance with the additional capability of 300 V DC rating. This part is suitable for applications requiring dual AC/DC voltage protection. The slightly lower Melting I²t value (4.35 versus 5.4) indicates a marginally faster thermal response, which remains within the slow-blow classification. Both substitute parts carry active product status and ROHS3 compliance, ensuring long-term availability and environmental regulatory alignment.

Frequently Asked Questions (FAQ)

Q: Can 5HTP 1.6-R be used as a direct replacement for 5HTP 1.6?

A: Yes. Both parts share identical current rating (1.6 A), AC voltage rating (250 V), fuse type (ceramic cartridge), response time (slow blow), package dimensions (5mm x 20mm axial), and mounting configuration (through hole). The 5HTP 1.6-R is manufactured by the same company and is in active production status.

Q: What is the difference between 5HTP 1.6-R and 0001.2506.PT?

A: Both parts meet the core AC specifications (1.6 A, 250 V, ceramic cartridge, slow blow, 5mm x 20mm). The 0001.2506.PT additionally provides 300 V DC rating capability, extending application scope to mixed AC/DC circuits. The 0001.2506.PT has a slightly lower Melting I²t value (4.35 versus 5.4), indicating marginally faster thermal response while remaining within slow-blow classification.

Q: Are there physical compatibility concerns when substituting these parts?

A: No. All three parts use identical 5mm x 20mm axial package dimensions and through-hole mounting configuration. Physical fit and electrical interface compatibility are maintained across all substitutes.

Q: Which substitute part should be selected for new designs?

A: For AC-only applications, either 5HTP 1.6-R or 0001.2506.PT is acceptable. For applications requiring DC voltage protection capability, 0001.2506.PT is the appropriate selection. Both parts are in active production with ROHS3 compliance.

Q: Does the Melting I²t difference between substitutes affect circuit protection?

A: The Melting I²t parameter characterizes thermal response time. The 0001.2506.PT value of 4.35 indicates slightly faster thermal response compared to 5.4 for the 5HTP 1.6-R. Both values maintain slow-blow classification. Selection should be based on specific circuit protection requirements and thermal response characteristics needed for the application.