FD-4030-12A-C4-C Equivalent & Substitute Parts

Part Overview

The FD-4030-12A-C4-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. The part is currently classified as obsolete, making identification of equivalent substitute components essential for ongoing system support and procurement planning.

Substiute Parts

FD-4030-12A-C4-C

Delta Electronics/CyntecIn Stock: 2066FD-4030-12A-C4-C Datasheet

Current PartRFQ

SCF4030-12-04

Eaton - Electronics DivisionIn Stock: 10565SCF4030-12-04 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the FD-4030-12A-C4-C is determined by the following critical parameters:

• Current Rating: 12A (exact match required)
• Voltage Rating (DC): 35 VDC minimum (36 VDC acceptable as higher rating)
• Fuse Type: Board Mount (surface mount configuration)
• Response Time: Fast Blow
• Package / Case: 1612 (4030 Metric)
• Physical Dimensions: Compatible with 4.00mm x 3.00mm footprint
• Breaking Capacity: 50A minimum
• Triggerable Range: 10.5 ~ 19.6V

The SCF4030-12-04 manufactured by Eaton - Electronics Division meets all substitution criteria. This part maintains identical current rating, fuse type, response characteristics, and package configuration while providing equivalent or superior electrical performance.

Parameter Comparison

Engineering Selection Recommendations

The SCF4030-12-04 is the qualified substitute for the obsolete FD-4030-12A-C4-C. Selection is based on the following engineering criteria:

• The substitute maintains active product status, ensuring long-term availability and supply chain continuity.
• Electrical parameters are equivalent or superior: 36 VDC rating exceeds the 35 VDC requirement of the original part.
• Physical footprint compatibility is confirmed within acceptable manufacturing tolerances (height variance of 0.05mm is within standard PCB assembly specifications).
• Both parts carry equivalent regulatory certifications (TUV/UL for the original; cURus for the substitute), confirming compliance for battery protection applications.
• ROHS3 compliance is maintained across both parts, meeting environmental and regulatory requirements.
• DC cold resistance specification (0.001 Ohms) for the substitute indicates low contact resistance performance suitable for battery protection circuits.

Frequently Asked Questions (FAQ)

Q: Can the SCF4030-12-04 be used as a direct replacement for the FD-4030-12A-C4-C?

A: Yes. The SCF4030-12-04 meets all electrical and mechanical substitution criteria. Current rating, voltage rating, fuse type, response time, package configuration, and breaking capacity are compatible. The 36 VDC rating of the substitute exceeds the 35 VDC requirement, providing additional safety margin.

Q: What is the significance of the 0.05mm height difference between the two parts?

A: The physical height variance (0.95mm vs. 0.90mm) falls within standard PCB assembly tolerances and does not affect board-level compatibility or reflow soldering processes. Both parts use the identical 1612 (4030 Metric) package footprint.

Q: Are the regulatory certifications equivalent between the two parts?

A: Both parts carry recognized third-party certifications. The original part holds TUV and UL approval; the substitute holds cURus certification. All certifications are appropriate for battery protection applications and meet industry standards.

Q: Why is the original part classified as obsolete?

A: Product obsolescence typically results from manufacturer discontinuation decisions. The SCF4030-12-04 is an active product from Eaton - Electronics Division, ensuring continued availability and supply chain support.

Q: Does the substitute part maintain the same triggerable voltage range?

A: Yes. Both parts feature identical 10.5 ~ 19.6V triggerable characteristics, ensuring equivalent circuit protection behavior in battery protection applications.

Q: What packaging formats are available for the substitute part?

A: The SCF4030-12-04 is supplied in Tape & Reel (TR) format, compared to the original part's Cut Tape (CT) & Digi-Reel® packaging. Both formats are standard for surface mount component procurement and assembly.