GSAP 160-R Equivalent & Substitute Parts

Part Overview

The GSAP 160-R is a 160 mA ceramic cartridge fuse manufactured by Bel Fuse Inc., rated for 250 V AC/DC operation with slow-blow response characteristics. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system maintenance and component procurement. The 3AB, 3AG form factor (1/4" x 1-1/4" axial) and ceramic construction define the primary substitution criteria for this product category.

Substiute Parts

GSAP 160-R

Bel Fuse Inc.In Stock: 1220GSAP 160-R Datasheet

Current PartRFQ

0325.175MXP

Littelfuse Inc.In Stock: 11240325.175MXP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the GSAP 160-R is determined by the following critical parameters:

• Current Rating: The substitute must operate within the same or compatible current range. The 0325.175MXP operates at 175 mA, representing a 9.4% increase above the 160 mA rating of the main part.
• Voltage Rating: Both parts are rated for 250 V AC, ensuring voltage compatibility in the circuit.
• Fuse Type and Response Characteristics: Both are ceramic cartridge fuses with slow-blow response, maintaining identical protection behavior.
• Physical Form Factor: Both conform to the 3AB, 3AG standard with 1/4" x 1-1/4" axial dimensions, ensuring mechanical compatibility in through-hole mounting applications.
• Operating Temperature Range: Both support -55°C ~ 125°C operation, maintaining thermal compatibility.
• Regulatory Compliance: Both are ROHS3 compliant and REACH unaffected, meeting modern environmental standards.

Parameter Comparison

Engineering Selection Recommendations

The 0325.175MXP from Littelfuse Inc. serves as the primary equivalent substitute for the obsolete GSAP 160-R. Selection of this substitute is supported by the following factors:

• Form Factor Compatibility: Identical 3AB, 3AG package dimensions ensure direct mechanical replacement in through-hole applications without circuit board modification.
• Electrical Compatibility: Both parts operate at 250 V AC with slow-blow response characteristics, maintaining circuit protection behavior.
• Current Rating Consideration: The 175 mA rating of the substitute represents a 9.4% increase over the 160 mA main part. This elevation is within acceptable tolerance for slow-blow ceramic fuse substitution in applications where the circuit design accommodates this variance.
• Active Product Status: The 0325.175MXP is classified as active, ensuring ongoing availability and supply chain continuity.
• Regulatory Compliance: Both parts meet ROHS3 requirements and REACH compliance standards, satisfying modern environmental and regulatory obligations.
• Certification Alignment: While the substitute carries CE certification, the main part includes additional CSA and cULus approvals. Circuit designers must confirm that CE certification alone satisfies the application's regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can the 0325.175MXP directly replace the GSAP 160-R without circuit modification?

A: Yes, the 0325.175MXP provides direct mechanical and electrical compatibility. Both parts conform to the 3AB, 3AG form factor and operate at 250 V AC with identical slow-blow response. The 15 mA current rating increase (160 mA to 175 mA) is within acceptable substitution tolerance for ceramic cartridge fuses in this category.

Q: What is the significance of the different breaking capacities (35 A vs. 100 A)?

A: Breaking capacity indicates the maximum fault current the fuse can safely interrupt. The 0325.175MXP's higher breaking capacity (100 A) provides enhanced fault protection capability compared to the main part (35 A). This represents an improvement in safety margin and does not create compatibility issues.

Q: Are there differences in thermal performance between these parts?

A: Both parts operate across the identical temperature range (-55°C ~ 125°C). The melting I²t values differ (0.499 vs. 0.22), indicating different thermal response characteristics. The substitute's lower I²t value means it responds more quickly to thermal stress, which is acceptable for slow-blow fuse substitution.

Q: Does the substitute meet all regulatory requirements of the original part?

A: The 0325.175MXP carries CE certification and is ROHS3 compliant and REACH unaffected, matching the environmental compliance of the main part. However, the main part includes CSA and cULus certifications that the substitute does not carry. Applications requiring CSA or cULus approval must confirm that CE certification alone satisfies regulatory obligations.

Q: What is the impact of the different DC cold resistance values?

A: DC cold resistance (12.3 Ohms vs. 8.92 Ohms) affects voltage drop under normal operation. The substitute's lower resistance results in slightly reduced voltage drop, which is operationally beneficial and does not create compatibility concerns.