Equivalent & Substitute Parts for 5TTP 1.6-R

Part Overview

The 5TTP 1.6-R is a 1.6 A, 250 V AC/DC slow-blow glass cartridge fuse in a 5mm x 20mm through-hole package, manufactured by Bel Fuse Inc. The part is currently active in production with 2152 units in stock. Alternative equivalent parts may be required due to supply chain considerations, design revisions, or specific application requirements where substitute fuses meet identical electrical and mechanical specifications.

Substiute Parts

5TTP 1.6-R

Bel Fuse Inc.In Stock: 21825TTP 1.6-R Datasheet

Current PartRFQ

5ETP 1.6-R

Bel Fuse Inc.In Stock: 21735ETP 1.6-R Datasheet

Parametric EquivalentRFQ

023901.6MXEP

Littelfuse Inc.In Stock: 2229023901.6MXEP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 5TTP 1.6-R are qualified based on the following mandatory parameters:

• Current Rating: 1.6 A (exact match required)
• Voltage Rating (AC): 250 V (exact match required)
• Fuse Type: Cartridge, Glass (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)
• Operating Temperature Range: -55°C ~ 125°C (exact match required)
• RoHS Status: ROHS3 Compliant (exact match required)

All substitute parts listed below meet these core electrical and mechanical requirements and are therefore directly interchangeable in applications designed for the 5TTP 1.6-R.

Parameter Comparison

Engineering Selection Recommendations

All three parts listed are active products with ROHS3 compliance and full regulatory approvals. Selection between the 5TTP 1.6-R and its substitutes should be based on the following factors:

5TTP 1.6-R (Bel Fuse Inc.): Primary part with CE, CSA, cULus, and PSE approvals. Breaking capacity of 100 A and melting I²t of 19.7 are suitable for standard circuit protection applications.

5ETP 1.6-R (Bel Fuse Inc.): Parametric equivalent with enhanced breaking capacity of 150 A and higher melting I²t of 62. Includes additional certifications: CCC, SEMKO, and VDE. Offers lower DC cold resistance (0.059 Ohms). Suitable for applications requiring higher breaking capacity or broader international compliance.

023901.6MXEP (Littelfuse Inc.): Direct manufacturer alternative with CE, CSA, KC, PSE, and UL approvals. Breaking capacity of 100 A matches the primary part. Physical dimension length is 21.50mm versus 21.00mm for Bel Fuse parts; verify clearance in confined spaces. Moisture Sensitivity Level (MSL) is 1 (Unlimited).

Frequently Asked Questions (FAQ)

Q: Can the 5ETP 1.6-R be used as a direct replacement for the 5TTP 1.6-R?

A: Yes. Both parts share identical current rating (1.6 A), voltage rating (250 V), fuse type (cartridge glass), response time (slow blow), package dimensions (5mm x 20mm), and operating temperature range (-55°C ~ 125°C). The 5ETP 1.6-R offers higher breaking capacity (150 A vs. 100 A) and lower DC cold resistance, making it suitable for the same applications.

Q: What is the difference between the Littelfuse 023901.6MXEP and the Bel Fuse 5TTP 1.6-R?

A: Both parts meet identical electrical specifications (1.6 A, 250 V, slow-blow cartridge glass). The primary difference is physical length: 023901.6MXEP is 21.50mm long versus 21.00mm for the 5TTP 1.6-R. Verify mounting clearance before substitution. The Littelfuse part includes UL and KC certifications in addition to CE, CSA, and PSE.

Q: Are all three parts suitable for the same circuit protection application?

A: Yes, provided the application requirements do not exceed the specified electrical parameters. All three parts are rated for 1.6 A at 250 V AC/DC with slow-blow response and -55°C ~ 125°C operating temperature. Verify physical dimensions fit the fuse holder, particularly the 0.5mm length difference of the Littelfuse part.

Q: Which part should be selected for international applications?

A: The 5ETP 1.6-R offers the broadest regulatory coverage with CCC, CE, CSA, cULus, SEMKO, and VDE approvals. The 023901.6MXEP includes UL and KC certifications. Select based on the specific regulatory requirements of the target market.

Q: Is there a difference in response time between these parts?

A: No. All three parts are classified as slow-blow fuses with identical response characteristics suitable for circuits with inrush current.