GSA 250 Equivalent & Substitute Parts

Part Overview

The GSA 250 is a 250 mA, 250 V AC/DC ceramic cartridge fuse manufactured by Bel Fuse Inc. with slow-blow response characteristics. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system maintenance and component procurement. The GSA 250 requires a 3AB or 3AG fuse holder and is designed for applications requiring reliable overcurrent protection in the 250 mA range at 250 V.

Substiute Parts

GSA 250

Bel Fuse Inc.In Stock: 1222GSA 250 Datasheet

Current PartRFQ

TCA-250MA

OptiFuseIn Stock: 1355TCA-250MA Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the GSA 250 is determined by strict equivalence across the following electrical and mechanical parameters:

• Current Rating: 250 mA (exact match required)
• Voltage Rating: 250 V AC (exact match required)
• Fuse Type: Ceramic cartridge (exact match required)
• Response Time: Slow Blow (exact match required)
• Package / Case: 3AB, 3AG, 1/4" x 1-1/4" (exact match required)
• Breaking Capacity: 35 A (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (exact match required)

The TCA-250MA from OptiFuse meets all substitution criteria and is classified as an equivalent alternative.

Parameter Comparison

Engineering Selection Recommendations

The TCA-250MA is a direct functional equivalent to the GSA 250. The primary distinction between these components relates to product status and regulatory compliance. The GSA 250 is obsolete and RoHS non-compliant, whereas the TCA-250MA is active and ROHS3 compliant. Both components carry equivalent electrical certifications (UL, CSA/cULus) and meet the same breaking capacity and thermal operating specifications. Selection of the TCA-250MA is appropriate for new designs and ongoing maintenance applications where RoHS compliance is required.

Frequently Asked Questions (FAQ)

Q: Can the TCA-250MA be used as a direct replacement for the GSA 250?

A: Yes. The TCA-250MA meets all electrical and mechanical substitution criteria, including current rating, voltage rating, fuse type, response time, package dimensions, breaking capacity, and operating temperature range.

Q: Are there any compatibility concerns with existing 3AB or 3AG fuse holders?

A: No. Both the GSA 250 and TCA-250MA use identical package specifications (3AB, 3AG, 1/4" x 1-1/4") and are mechanically compatible with standard fuse holders designed for this package type.

Q: What is the significance of the RoHS compliance difference?

A: The TCA-250MA is ROHS3 compliant, while the GSA 250 is RoHS non-compliant. For applications subject to RoHS regulations or customer requirements, the TCA-250MA is the appropriate selection.

Q: Are the electrical certifications equivalent?

A: Both components carry UL certification. The GSA 250 includes CE and CSA approvals, while the TCA-250MA carries cULus and UL 248 certifications. Both meet industry safety standards for ceramic cartridge fuses in this current and voltage range.