SSQC 2 Surface Mount Fuse - Equivalent & Substitute Parts

Part Overview

The SSQC 2 is a 2A 125VAC/VDC surface mount board fuse manufactured by Bel Fuse Inc. in a 2-SMD square end block configuration with clip. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement. The part requires a compatible holder for installation and operates across a temperature range of -55°C to 125°C with fast-blow response characteristics.

Substiute Parts

SSQC 2

Bel Fuse Inc.In Stock: 1045SSQC 2 Datasheet

Current PartRFQ

0679L2000-01

Bel Fuse Inc.In Stock: 62010679L2000-01 Datasheet

SimilarRFQ

3404.0012.22

SCHURTER Inc.In Stock: 89023404.0012.22 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SSQC 2 is determined by strict equivalence across the following parameters:

• Current Rating: 2 A (exact match required)
• Voltage Rating: 125 V AC and 125 V DC (exact match required)
• Response Time: Fast Blow (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Fuse Type: Board Mount, Cartridge Style Excluded (exact match required)
• Package Configuration: 2-SMD (exact match required)
• Operating Temperature Range: -55°C to 125°C (exact match required)
• RoHS Compliance: ROHS3 Compliant (exact match required)

The following substitute parts meet all mandatory electrical and mechanical parameters:

1. 0679L2000-01 (Bel Fuse Inc.) - Active product status, Tape & Reel packaging
2. 3404.0012.22 (SCHURTER Inc.) - Active product status, Tape & Reel packaging

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts are active products with current manufacturing support, addressing the obsolescence status of the SSQC 2.

0679L2000-01 (Bel Fuse Inc.) maintains manufacturer continuity and is supplied by the same manufacturer as the original part. This part carries AEC-Q200 and cURus certifications, indicating automotive-grade reliability qualification. Packaging is available in Tape & Reel format with 6160 units in current inventory.

3404.0012.22 (SCHURTER Inc.) provides an alternative from a different manufacturer with cURus certification. This part offers higher breaking capacity at 100A AC and is available in Tape & Reel packaging with 8794 units in current inventory.

Selection between these substitutes depends on holder compatibility with the specific lead configuration (square end block versus J-lead) and any design requirements for automotive-grade qualification or breaking capacity specifications.

Frequently Asked Questions (FAQ)

Q: Can the SSQC 2 be directly replaced with 0679L2000-01?

A: Both parts meet identical electrical specifications (2A, 125VAC/VDC, fast-blow response). The primary difference is the package configuration: SSQC 2 features a square end block with clip, while 0679L2000-01 uses a square end block without clip. Compatibility depends on the holder design in your application.

Q: What is the difference between the two substitute parts?

A: Both meet all mandatory electrical parameters. Key differences include manufacturer (Bel Fuse Inc. versus SCHURTER Inc.), lead configuration (square end block versus J-lead), breaking capacity (50A AC/300A DC versus 100A AC), and certifications (AEC-Q200 available only with 0679L2000-01).

Q: Why is the SSQC 2 obsolete?

A: Product obsolescence is determined by the manufacturer. Active substitute parts with identical electrical specifications are available from both Bel Fuse Inc. and SCHURTER Inc.

Q: Are there any temperature or compliance differences between these parts?

A: All three parts operate across -55°C to 125°C and are ROHS3 compliant. Moisture sensitivity level is 1 (Unlimited) for SSQC 2 and 0679L2000-01. The 3404.0012.22 has MSL listed as Not Applicable.

Q: Which substitute should I choose for a new design?

A: Selection criteria include holder compatibility with the specific lead configuration, requirement for AEC-Q200 automotive qualification, and breaking capacity specifications. Both active substitutes are suitable for new designs based on these parameters.