FD-4030-12A-C3-C Equivalent & Substitute Parts

Part Overview

The FD-4030-12A-C3-C is a 12A/35VDC surface mount board fuse manufactured by Delta Electronics/Cyntec. This component is designed for battery protection applications with fast-blow response characteristics and triggerable functionality in the 7.4–14V range. The part is currently obsolete, making identification of compatible substitute components essential for ongoing system support and procurement planning.

Substiute Parts

FD-4030-12A-C3-C

Delta Electronics/CyntecIn Stock: 2020FD-4030-12A-C3-C Datasheet

Current PartRFQ

SCF4030-12-03

Eaton - Electronics DivisionIn Stock: 10678SCF4030-12-03 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the FD-4030-12A-C3-C is determined by the following critical parameters:

• Current Rating: 12A (exact match required)
• Voltage Rating: 35 VDC minimum (36 VDC acceptable within standard tolerance)
• Response Time: Fast Blow (functional equivalence)
• Package / Case: 1612 (4030 Metric) (physical and electrical compatibility)
• Mounting Type: Surface Mount (assembly compatibility)
• Breaking Capacity: 50A @ rated voltage (safety and performance)
• Triggerable Range: 7.4–14V operational window (application-specific requirement)

The SCF4030-12-03 manufactured by Eaton meets all substitution criteria within these parameters.

Parameter Comparison

Engineering Selection Recommendations

The SCF4030-12-03 is the qualified substitute for the FD-4030-12A-C3-C based on the following engineering criteria:

Electrical Compatibility: Both components share identical current ratings (12A), fast-blow response characteristics, and breaking capacity (50A). The SCF4030-12-03 operates at 36 VDC, which exceeds the 35 VDC requirement of the main part, ensuring adequate voltage margin for battery protection applications.

Physical Compatibility: Both parts use the 1612 (4030 Metric) package with surface mount board fuse configuration. Dimensional differences (0.95mm vs. 0.90mm height) are within standard PCB assembly tolerances and do not affect mounting or electrical performance.

Regulatory Compliance: Both components are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. The SCF4030-12-03 carries cURus certification, meeting North American regulatory requirements.

Product Availability: The FD-4030-12A-C3-C is obsolete. The SCF4030-12-03 is in active production with substantial inventory availability, ensuring long-term procurement viability.

Application Suitability: Both components are rated for battery protection with triggerable functionality. The SCF4030-12-03 operates within the 7.4–13.8V triggerable range, covering the primary operating window of the original design.

Frequently Asked Questions (FAQ)

Q: Can the SCF4030-12-03 be used as a direct replacement for the FD-4030-12A-C3-C?

A: Yes. Both components meet the critical substitution parameters: 12A current rating, fast-blow response, 50A breaking capacity, 1612 (4030 Metric) package, and surface mount board fuse configuration. The 36 VDC rating of the SCF4030-12-03 exceeds the 35 VDC requirement, providing adequate voltage margin.

Q: What is the difference in the triggerable voltage range?

A: The FD-4030-12A-C3-C operates at 7.4–14V, while the SCF4030-12-03 operates at 7.4–13.8V. For battery protection applications operating at or below 13.8V, the SCF4030-12-03 provides full functional equivalence. Applications requiring triggering above 13.8V require design review.

Q: Are there dimensional compatibility concerns?

A: The height difference (0.95mm vs. 0.90mm) is within standard PCB assembly tolerances. Both components use identical length and width dimensions (4.00mm x 3.00mm) and the same 1612 (4030 Metric) package footprint, ensuring PCB layout compatibility.

Q: What certifications does the substitute part carry?

A: The SCF4030-12-03 carries cURus certification and is ROHS3 compliant with MSL 1 rating. The original FD-4030-12A-C3-C carried TUV and UL approvals. Design teams should confirm that cURus certification meets system-level regulatory requirements.

Q: Is the SCF4030-12-03 available for procurement?

A: Yes. The SCF4030-12-03 is in active production status with substantial inventory availability, providing reliable long-term supply for replacement and new designs.

Q: Are there operating temperature differences?

A: The FD-4030-12A-C3-C operates at -10°C to 65°C, while the SCF4030-12-03 operates at -20°C to 60°C. The overlapping range (-10°C to 60°C) covers standard battery protection applications. Applications requiring operation above 60°C require design review.