GSAP 5-R Equivalent & Substitute Parts

Part Overview

The GSAP 5-R is a 5A 250VAC ceramic cartridge fuse manufactured by Bel Fuse Inc., designed for Through Hole mounting in 3AB, 3AG package format. This component is classified as Obsolete, making identification of equivalent substitute parts essential for ongoing system maintenance and component procurement. The slow-blow response characteristic and ceramic construction provide protection in applications requiring moderate inrush current tolerance while maintaining reliable circuit interruption at rated fault conditions.

Substiute Parts

GSAP 5-R

Bel Fuse Inc.In Stock: 938GSAP 5-R Datasheet

Current PartRFQ

0325005.MXP

Littelfuse Inc.In Stock: 10440325005.MXP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the GSAP 5-R is determined by strict equivalence across the following critical parameters:

• Current Rating: 5 A (exact match required)
• Voltage Rating (AC): 250 V (exact match required)
• Fuse Type: Cartridge, Ceramic (exact match required)
• Response Time: Slow Blow (exact match required)
• Package / Case: 3AB, 3AG, 1/4" x 1-1/4" (Axial) (exact match required)
• Mounting Type: Through Hole (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (minimum required)
• RoHS Compliance: ROHS3 Compliant (required for regulatory alignment)

The substitute part 0325005.MXP manufactured by Littelfuse Inc. meets all critical electrical and mechanical parameters for direct substitution with the GSAP 5-R.

Parameter Comparison

Engineering Selection Recommendations

The 0325005.MXP from Littelfuse Inc. is the qualified substitute for the obsolete GSAP 5-R. Selection is based on the following engineering criteria:

• Electrical equivalence: Both components share identical current rating (5 A), voltage rating (250 V AC), and response time (Slow Blow) characteristics.
• Mechanical compatibility: Package format (3AB, 3AG), physical dimensions, and Through Hole mounting are equivalent within acceptable tolerance ranges.
• Regulatory compliance: Both components maintain ROHS3 compliance and hold equivalent international approvals (CE, CSA, PSE). The 0325005.MXP carries additional UL certification.
• Product status: The 0325005.MXP is Active, ensuring continued availability and supply chain stability compared to the Obsolete GSAP 5-R.
• Temperature performance: Operating temperature range (-55°C ~ 125°C) is identical, confirming thermal equivalence.

Frequently Asked Questions (FAQ)

Q: Can the 0325005.MXP be used as a direct replacement for the GSAP 5-R in existing designs?

A: Yes. The 0325005.MXP meets all critical electrical and mechanical parameters required for direct substitution. Physical dimensions are within acceptable tolerance for Through Hole mounting in standard fuse holders designed for 3AB, 3AG cartridge format.

Q: What are the key differences between these two fuses?

A: The primary differences are manufacturer identity and product status. The GSAP 5-R is Obsolete, while the 0325005.MXP is Active. Secondary differences include Breaking Capacity (200A vs. 400A), Melting I²t values (349 vs. 25), and DC Cold Resistance (0.029 Ohms vs. 0.0522 Ohms). These differences do not affect substitution eligibility for applications requiring 5A, 250VAC protection with slow-blow response.

Q: Are there any packaging or inventory considerations?

A: The GSAP 5-R is supplied in standard packaging with 847 pieces available. The 0325005.MXP is supplied in Bulk packaging with 989 pieces available. Both are new original stock. Packaging format should be confirmed with procurement requirements.

Q: Do both fuses carry the same regulatory approvals?

A: Both components are ROHS3 compliant and REACH Unaffected. The GSAP 5-R carries CE, CSA, cULus, and PSE approvals. The 0325005.MXP carries CE, CSA, PSE, and UL approvals. Both approval sets are suitable for industrial and consumer applications requiring international compliance.

Q: What is the significance of the different Breaking Capacity ratings?

A: The 0325005.MXP has a higher Breaking Capacity (400A vs. 200A). This indicates the substitute can safely interrupt higher fault currents. For applications where the original GSAP 5-R was specified, the higher Breaking Capacity of the 0325005.MXP provides equivalent or improved performance and does not create compatibility issues.