GSA 8 Equivalent & Substitute Parts

Part Overview

The GSA 8 is an 8 A, 250 V AC ceramic cartridge fuse manufactured by Bel Fuse Inc. with slow-blow response characteristics. This part is classified as obsolete, requiring identification of active equivalent alternatives for continued system support and procurement. Substitute parts must maintain identical electrical ratings, mechanical form factors, and approval certifications to ensure direct interchangeability in existing holder assemblies.

Substiute Parts

GSA 8

Bel Fuse Inc.In Stock: 984GSA 8 Datasheet

Current PartRFQ

GSA 8-R

Bel Fuse Inc.In Stock: 1419GSA 8-R Datasheet

DirectRFQ

0001.2513

SCHURTER Inc.In Stock: 559540001.2513 Datasheet

SimilarRFQ

TCA-8A

OptiFuseIn Stock: 9115TCA-8A Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the GSA 8 are classified based on adherence to the following critical parameters:

Direct Manufacturer Substitutes maintain identical electrical specifications (8 A, 250 V AC), mechanical form factor (3AB, 3AG, 1/4" x 1-1/4"), fuse type (ceramic cartridge), and response time (slow blow). These parts are interchangeable without modification to existing holder assemblies.

Similar Manufacturer Substitutes share the same current rating (8 A) and voltage rating (250 V AC) but differ in mechanical package dimensions or additional voltage ratings. These require verification of holder compatibility before deployment.

Parametric Equivalents match all critical electrical and mechanical parameters but may differ in compliance certifications or RoHS status. Selection depends on system regulatory requirements.

Parameter Comparison

Engineering Selection Recommendations

GSA 8-R (Bel Fuse Inc.) is the primary direct substitute. It maintains identical electrical and mechanical specifications with active product status and ROHS3 compliance. All approval certifications required by the original GSA 8 are retained or upgraded (cURus added). This part provides seamless interchangeability.

TCA-8A (OptiFuse) is a parametric equivalent suitable for applications requiring ROHS3 compliance and UL 248 certification. Mechanical and electrical parameters are identical to GSA 8. Selection is appropriate when OptiFuse supply chain or certification requirements are specified.

0001.2513 (SCHURTER Inc.) is a similar substitute with different mechanical packaging (5mm x 20mm versus 3AB, 3AG form factor). This part is not interchangeable in existing GSA 8 holder assemblies and requires holder replacement. Selection is limited to new designs or retrofit applications where holder modification is feasible.

Frequently Asked Questions (FAQ)

Q: Can GSA 8-R be used as a direct replacement for GSA 8? A: Yes. GSA 8-R maintains identical current rating (8 A), voltage rating (250 V AC), ceramic cartridge type, slow-blow response, and 3AB/3AG form factor. It is compatible with all existing GSA 8 holder assemblies.

Q: What is the primary difference between GSA 8 and GSA 8-R? A: GSA 8-R has active product status and ROHS3 compliance, whereas GSA 8 is obsolete and non-compliant. Electrical and mechanical specifications are identical.

Q: Is TCA-8A compatible with GSA 8 holders? A: Yes. TCA-8A shares identical dimensions (0.250" Dia x 1.252" L) and 3AB, 3AG form factor with GSA 8, ensuring mechanical compatibility with existing holder assemblies.

Q: Why is 0001.2513 not recommended as a direct substitute? A: 0001.2513 uses a 5mm x 20mm package form factor, which differs from the GSA 8's 3AB, 3AG, 1/4" x 1-1/4" specification. It requires a different holder assembly and is not mechanically interchangeable.

Q: Which substitute part offers the highest breaking capacity? A: 0001.2513 provides 1 kA AC and 1.5 kA DC breaking capacity, compared to 200 A for GSA 8, GSA 8-R, and TCA-8A. This higher capacity is a consequence of its different mechanical package.

Q: Are all substitute parts RoHS compliant? A: GSA 8-R and TCA-8A are ROHS3 compliant. 0001.2513 is also ROHS3 compliant. The original GSA 8 is non-compliant.

Q: What approval certifications should I verify for my application? A: GSA 8-R retains CE, CSA, and PSE certifications from the original part and adds cURus. TCA-8A provides cULus and UL 248 certifications. 0001.2513 provides cURus and VDE certifications. Verify that the selected substitute meets your system's regulatory requirements.