ECW-FD2W684JC Equivalent & Substitute Parts

Part Overview

The ECW-FD2W684JC is a 0.68 µF film capacitor manufactured by Panasonic Electronic Components, rated for 450V DC operation with ±5% tolerance. 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 production with 1587 pieces available in stock. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and design continuity when the primary part number becomes unavailable or when alternative sourcing is required.

Substiute Parts

ECW-FD2W684JC

Panasonic Electronic ComponentsIn Stock: 1679ECW-FD2W684JC Datasheet

Current PartRFQ

ECW-FD2W684J

Panasonic Electronic ComponentsIn Stock: 1741ECW-FD2W684J Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ECW-FD2W684JC is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Capacitance: 0.68 µF
• Tolerance: ±5%
• Voltage Rating - DC: 450V
• Dielectric Material: Polypropylene (PP), Metallized
• Operating Temperature Range: -40°C ~ 110°C
• Mounting Type: Through Hole
• Package / Case: Radial
• Lead Spacing: 0.591" (15.00mm)
• Termination: PC Pins
• Series: ECW-F(D)

The substitute part ECW-FD2W684J meets all mandatory matching parameters. Both parts are manufactured by Panasonic Electronic Components within the same ECW-F(D) series and share identical mechanical and electrical specifications for the core application requirements. Both parts maintain ROHS3 compliance and are classified as active products.

Parameter Comparison

Engineering Selection Recommendations

Both the ECW-FD2W684JC and ECW-FD2W684J are active products manufactured by Panasonic Electronic Components and maintain full ROHS3 compliance. The parts are mechanically and electrically interchangeable for applications requiring 0.68 µF capacitance at 450V DC with polypropylene dielectric material and radial through-hole mounting.

The ECW-FD2W684J provides an additional AC voltage rating specification of 84V, which is not declared for the ECW-FD2W684JC. This specification difference does not affect DC-only applications but may be relevant for dual-voltage or AC/DC hybrid circuit designs.

Both parts are suitable for EMI/RFI suppression, high-frequency switching, and high pulse/DV/DT applications. Selection between these parts should be based on availability, lead time requirements, and specific application voltage specifications. The substitute part ECW-FD2W684J currently maintains higher inventory levels at 1690 pieces compared to 1587 pieces for the main part number.

Frequently Asked Questions (FAQ)

Q: Can ECW-FD2W684J be used as a direct replacement for ECW-FD2W684JC?

A: Yes. Both parts share identical capacitance (0.68 µF), tolerance (±5%), DC voltage rating (450V), dielectric material (polypropylene metallized), operating temperature range (-40°C ~ 110°C), mechanical dimensions, lead spacing (15.00mm), and radial through-hole mounting configuration. The parts are electrically and mechanically interchangeable.

Q: What is the difference between ECW-FD2W684JC and ECW-FD2W684J?

A: The primary difference is the AC voltage rating specification. ECW-FD2W684J includes an AC voltage rating of 84V, while ECW-FD2W684JC does not specify an AC rating. All other electrical and mechanical parameters are identical. Both parts are ROHS3 compliant and manufactured by Panasonic Electronic Components.

Q: Are these parts suitable for high-frequency applications?

A: Yes. Both ECW-FD2W684JC and ECW-FD2W684J are specified for high-frequency and switching applications. The polypropylene metallized dielectric material and radial configuration support these application requirements.

Q: What is the lead spacing for these capacitors?

A: The lead spacing is 0.591 inches (15.00mm) for both parts. This spacing is consistent with standard through-hole PCB layouts for radial film capacitors in this size class.

Q: Are these parts RoHS compliant?

A: Yes. Both ECW-FD2W684JC and ECW-FD2W684J are ROHS3 compliant and meet current environmental and regulatory requirements for electronic component manufacturing.

Q: What applications are these capacitors designed for?

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