ECW-FD2J475KC Film Capacitor Equivalent & Substitute Parts

Part Overview

The ECW-FD2J475KC is a 4.7 µF film capacitor rated for 630V DC, manufactured by Panasonic Electronic Components. This polypropylene metallized radial capacitor is designed for EMI/RFI suppression, high-frequency switching, and high pulse applications. The part is currently active in production with 980 units in stock. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and design continuity when the primary part becomes unavailable or when alternative sourcing is required.

Substiute Parts

ECW-FD2J475KC

Panasonic Electronic ComponentsIn Stock: 1006ECW-FD2J475KC Datasheet

Current PartRFQ

ECW-FD2J475K

Panasonic Electronic ComponentsIn Stock: 1534ECW-FD2J475K Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the ECW-FD2J475KC is determined by strict equivalence across the following critical parameters:

• Capacitance value: 4.7 µF (exact match required)
• Tolerance: ±10% (exact match required)
• DC voltage rating: 630V (exact match or higher acceptable)
• Dielectric material: Polypropylene (PP), Metallized (exact match required)
• Operating temperature range: -40°C ~ 105°C (exact match required)
• Mounting type: Through Hole (exact match required)
• Package / Case: Radial (exact match required)
• Physical dimensions and lead spacing (exact match required for PCB compatibility)
• Termination type: PC Pins (exact match required)

The substitute part ECW-FD2J475K meets all these criteria and belongs to the same ECW-F(D) series, ensuring functional and mechanical interchangeability.

Parameter Comparison

Engineering Selection Recommendations

Both ECW-FD2J475KC and ECW-FD2J475K are active production parts manufactured by Panasonic Electronic Components and are fully compliant with ROHS3 and REACH regulations. The substitute part ECW-FD2J475K provides equivalent electrical and mechanical performance for all specified applications including EMI/RFI suppression, high-frequency switching, and high pulse/DV/DT circuits.

Selection between these parts should be based on inventory availability and procurement lead times. The ECW-FD2J475K currently has higher inventory (1455 units) compared to the main part (980 units), making it a viable alternative for immediate sourcing requirements. Both parts carry identical certifications and compliance status, ensuring no regulatory or quality trade-offs in substitution.

Frequently Asked Questions (FAQ)

Q: Can ECW-FD2J475K be used as a direct replacement for ECW-FD2J475KC?

A: Yes. Both parts share identical capacitance (4.7 µF), tolerance (±10%), DC voltage rating (630V), dielectric material (polypropylene metallized), operating temperature range (-40°C ~ 105°C), physical dimensions, lead spacing, and termination type. They are mechanically and electrically interchangeable for all specified applications.

Q: What is the difference between these two part numbers?

A: The primary difference is the AC voltage rating specification. ECW-FD2J475K includes an AC voltage rating of 141V, while ECW-FD2J475KC does not specify an AC rating. Both parts are identical in all other electrical and mechanical parameters.

Q: Are there any compliance or certification differences?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical regulatory certifications (ECCN: EAR99, HTSUS: 8532.25.0070).

Q: Will the substitute part fit the same PCB footprint?

A: Yes. Both parts have identical physical dimensions (0.996" L x 0.720" W / 25.30mm x 18.30mm), height (1.000" / 25.40mm), and lead spacing (0.886" / 22.50mm). They are pin-compatible and require no PCB layout modifications.

Q: Which part should I source if both are available?

A: Selection should be based on procurement lead time and inventory availability. ECW-FD2J475K currently has higher stock levels (1455 units vs. 980 units), making it preferable for immediate delivery requirements.