FD-4030-12A-C2-C Equivalent & Substitute Parts

Part Overview

The FD-4030-12A-C2-C is a 12A/35VDC surface mount board fuse manufactured by Delta Electronics/Cyntec, designed for battery protection applications with fast-blow response characteristics and 4~9V triggerable features. This part is classified as obsolete, making equivalent substitutes necessary for ongoing design support and procurement continuity. The part carries TUV and UL approvals and is ROHS3 compliant.

Substiute Parts

FD-4030-12A-C2-C

Delta Electronics/CyntecIn Stock: 1068FD-4030-12A-C2-C Datasheet

Current PartRFQ

SCF4030-12-02

Eaton - Electronics DivisionIn Stock: 11021SCF4030-12-02 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the FD-4030-12A-C2-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)
• Package / Case: 1612 (4030 Metric) (exact match required)
• Response Time: Fast Blow (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Features: 4 ~ 9V Triggerable (exact match required)
• Breaking Capacity: 50A (exact match required)

The SCF4030-12-02 manufactured by Eaton - Electronics Division meets all substitution criteria. The voltage rating differential (36 VDC vs. 35 VDC) falls within acceptable operating parameters for this fuse category, and all mechanical and electrical characteristics align with the original specification.

Parameter Comparison

Engineering Selection Recommendations

The SCF4030-12-02 is the qualified substitute for the FD-4030-12A-C2-C. Selection is based on the following factors:

• All critical electrical parameters (current, voltage, breaking capacity, response time) are equivalent or exceed the original specification
• Mechanical compatibility is confirmed through identical package designation and compatible physical dimensions
• Both parts carry ROHS3 compliance and MSL Level 1 ratings
• The substitute part maintains active product status, ensuring long-term availability and supply chain continuity
• Regulatory approvals (cURus for substitute vs. TUV/UL for original) are appropriate for battery protection applications
• The 1 VDC voltage rating increase (36 VDC vs. 35 VDC) is within standard tolerance for fuse specifications

Frequently Asked Questions (FAQ)

Q: Can the SCF4030-12-02 be used as a direct replacement for the FD-4030-12A-C2-C?

A: Yes. The SCF4030-12-02 meets all critical substitution parameters including current rating, voltage rating, package type, response time, and triggerable features. Physical dimensions are compatible with PCB footprints designed for the original part.

Q: What is the significance of the voltage rating difference (35 VDC vs. 36 VDC)?

A: The 1 VDC difference is within acceptable tolerance for fuse specifications in this category. The substitute part's higher voltage rating does not compromise performance in circuits designed for 35 VDC operation.

Q: Are there differences in operating temperature ranges?

A: Yes. The original part operates from -10°C to 65°C, while the substitute operates from -20°C to 60°C. The substitute provides extended low-temperature capability but slightly reduced high-temperature operation. Selection should be based on specific application requirements.

Q: Do both parts have equivalent regulatory approvals?

A: Both parts carry appropriate regulatory certifications for battery protection applications. The original holds TUV and UL approvals; the substitute holds cURus approval. Both are ROHS3 compliant with MSL Level 1 ratings.

Q: Is the physical dimension difference (0.037" vs. 0.035" height) significant?

A: No. The 0.002" height difference (0.05mm) is negligible for PCB assembly and does not affect footprint compatibility or board-level clearance considerations.

Q: What is the product status implication?

A: The original part is obsolete, making the active-status substitute necessary for new procurement and design continuity. The SCF4030-12-02 ensures uninterrupted supply for applications requiring this fuse specification.