ECW-FD2W395KC Equivalent & Substitute Parts

Part Overview

The ECW-FD2W395KC is a 3.9 µF film capacitor rated for 450V DC operation, manufactured by Panasonic Electronic Components. This polypropylene metallized radial capacitor is designed for EMI/RFI suppression, high-frequency switching, and high pulse/DV/DT applications. The part is currently Active in product status with 939 pieces available in stock. Substitute parts are identified when equivalent electrical and mechanical parameters are required for circuit design continuity, inventory management, or supply chain optimization.

Substiute Parts

ECW-FD2W395KC

Panasonic Electronic ComponentsIn Stock: 970ECW-FD2W395KC Datasheet

Current PartRFQ

ECW-FD2W395K

Panasonic Electronic ComponentsIn Stock: 1204ECW-FD2W395K Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ECW-FD2W395KC are identified based on strict equivalence across the following critical parameters:

• Capacitance Value: 3.9 µF (exact match required)
• Tolerance: ±10% (exact match required)
• Voltage Rating (DC): 450V (exact match required)
• Dielectric Material: Polypropylene (PP), Metallized (exact match required)
• Operating Temperature Range: -40°C ~ 110°C (exact match required)
• Mounting Type: Through Hole (exact match required)
• Package Type: Radial (exact match required)
• Physical Dimensions: 25.30mm L x 10.70mm W (exact match required)
• Lead Spacing: 22.50mm (exact match required)
• Termination: PC Pins (exact match required)
• Compliance: ROHS3 Compliant, REACH Unaffected (exact match required)

Substitution is valid only when all parameters match exactly. Variations in any parameter render a part incompatible for direct substitution.

Parameter Comparison

Engineering Selection Recommendations

Both ECW-FD2W395KC and ECW-FD2W395K are Active products manufactured by Panasonic Electronic Components within the ECW-F(D) series. Both parts are ROHS3 Compliant and REACH Unaffected, meeting current regulatory requirements for electronic component manufacturing and distribution.

Selection between these parts is based on inventory availability and supply chain considerations. The ECW-FD2W395K currently maintains higher inventory levels (1149 pieces) compared to the ECW-FD2W395KC (939 pieces). Both parts are functionally and mechanically identical across all specified parameters and are suitable for direct substitution in circuit applications requiring 3.9 µF, 450V DC film capacitors with polypropylene dielectric material.

Frequently Asked Questions (FAQ)

Q: Can ECW-FD2W395K be used as a direct replacement for ECW-FD2W395KC?

A: Yes. Both parts are identical across all electrical and mechanical parameters, including capacitance, voltage rating, dielectric material, physical dimensions, lead spacing, and termination type. Direct substitution is valid for circuit applications.

Q: Are there any differences in performance between these two part numbers?

A: No. Both parts share identical specifications for capacitance (3.9 µF), tolerance (±10%), voltage rating (450V DC), operating temperature range (-40°C ~ 110°C), and all mechanical characteristics. Performance in circuit operation is equivalent.

Q: Do both parts meet the same compliance standards?

A: Yes. Both ECW-FD2W395KC and ECW-FD2W395K are ROHS3 Compliant and REACH Unaffected, meeting identical regulatory requirements.

Q: What is the significance of the different part number suffixes (KC vs K)?

A: The suffix variation does not indicate a functional or electrical difference. Both parts belong to the same ECW-F(D) series and maintain identical specifications. The suffix may reflect internal Panasonic manufacturing or packaging designations.

Q: Can these radial capacitors be mounted in any orientation on a PCB?

A: Radial capacitors with PC pin termination are mounted through holes in a vertical or horizontal orientation depending on PCB design requirements. The 22.50mm lead spacing must be accommodated by the PCB layout.

Q: What applications are these capacitors suitable for?

A: Both parts are specified for EMI/RFI suppression, high-frequency switching applications, and high pulse/DV/DT environments. The 450V DC rating and polypropylene dielectric material support these application categories.