SSQC 1 Equivalent & Substitute Parts

Part Overview

The SSQC 1 is a 1A 125VAC/VDC surface mount board mount fuse manufactured by Bel Fuse Inc. in a 2-SMD square end block with clip package. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and procurement planning. Substitute parts must maintain identical electrical ratings and compatible mechanical interfaces to ensure direct replacement capability.

Substiute Parts

SSQC 1

Bel Fuse Inc.In Stock: 717SSQC 1 Datasheet

Current PartRFQ

3404.0009.22

SCHURTER Inc.In Stock: 38143404.0009.22 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SSQC 1 is determined by strict equivalence across the following parameters:

• Current Rating: 1 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)
• Package Configuration: 2-SMD format (mechanical compatibility required)
• Operating Temperature: -55°C ~ 125°C (minimum range required)
• RoHS Compliance: ROHS3 Compliant (regulatory requirement)

The SCHURTER Inc. part number 3404.0009.22 meets all substitution criteria. Both components share identical electrical specifications and operate within the same temperature envelope. The substitute part is active in production status, ensuring long-term availability.

Parameter Comparison

Engineering Selection Recommendations

The SCHURTER Inc. 3404.0009.22 is the qualified substitute for the obsolete SSQC 1. Selection is based on:

• Electrical equivalence across all rated parameters (current, voltage AC/DC, response time)
• Active production status ensuring procurement continuity
• ROHS3 compliance and REACH unaffected status matching regulatory requirements
• Surface mount 2-SMD package compatibility with existing board layouts
• Identical operating temperature range (-55°C ~ 125°C)

The substitute part is suitable for direct replacement in new designs and legacy system support applications.

Frequently Asked Questions (FAQ)

Q: Can the SCHURTER 3404.0009.22 be used as a direct replacement for the SSQC 1?

A: Yes. Both components share identical electrical ratings (1A, 125VAC/VDC, Fast Blow response) and surface mount 2-SMD package configuration. The substitute part is active in production, providing long-term availability.

Q: What is the difference between the square end block with clip and J-Lead package styles?

A: Both are 2-SMD surface mount packages with equivalent electrical performance. The package style difference reflects manufacturing variation between suppliers. Mechanical compatibility with existing fuse holders must be verified during board integration.

Q: Why is the SSQC 1 listed as obsolete?

A: Obsolete status indicates the part is no longer manufactured by Bel Fuse Inc. The SCHURTER substitute ensures continued access to equivalent 1A 125VAC/VDC fast blow fuse functionality.

Q: Are there compliance differences between the main part and substitute?

A: No. Both components are ROHS3 compliant and REACH unaffected, meeting identical regulatory requirements.

Q: What is the melting I²t difference between these parts?

A: The SSQC 1 has a melting I²t of 0.19, while the 3404.0009.22 has 0.078. Both maintain the same 1A current rating and fast blow response time. The I²t value reflects thermal energy dissipation characteristics during fault conditions.