ECW-FD2W185KC Equivalent & Substitute Parts

Part Overview

The ECW-FD2W185KC is a 1.8 µF film capacitor manufactured by Panasonic Electronic Components, rated for 450V DC operation with polypropylene (PP) metallized dielectric construction. This radial through-hole component is designed for EMI/RFI suppression, high-frequency switching, and high pulse/DV/DT applications. The part maintains Active product status with full ROHS3 compliance and REACH unaffected certification. Substitute parts are identified when electrical specifications, mechanical dimensions, and compliance certifications remain equivalent across the component family.

Substiute Parts

ECW-FD2W185KC

Panasonic Electronic ComponentsIn Stock: 994ECW-FD2W185KC Datasheet

Current PartRFQ

ECW-FD2W185K

Panasonic Electronic ComponentsIn Stock: 2194ECW-FD2W185K Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ECW-FD2W185KC is determined by strict equivalence across the following parameters:

Electrical Specifications:

• Capacitance value: 1.8 µF
• Tolerance: ±10%
• Voltage rating: 450V DC
• Dielectric type: Polypropylene (PP), Metallized

Mechanical Specifications:

• Mounting configuration: Through Hole Radial
• Lead spacing: 15.00mm
• Physical dimensions: 17.50mm L x 10.10mm W
• Termination style: PC Pins

Compliance & Regulatory:

• RoHS3 Compliant
• REACH Unaffected status
• Active product status

Substitute parts must match all parameters listed above. Variations in any electrical, mechanical, or compliance specification disqualify a part from substitution eligibility.

Parameter Comparison

Engineering Selection Recommendations

The ECW-FD2W185K is a direct parametric equivalent to the ECW-FD2W185KC. Both parts are manufactured by Panasonic Electronic Components within the ECW-F(D) series and maintain identical electrical, mechanical, and compliance specifications. Selection between these parts is based on availability and inventory status. The ECW-FD2W185K currently maintains higher inventory availability (2136 pcs) compared to the ECW-FD2W185KC (970 pcs). Both parts carry Active product status with full ROHS3 compliance and REACH unaffected certification, ensuring long-term supply continuity and regulatory compliance for applications requiring EMI/RFI suppression, high-frequency switching, and high pulse/DV/DT performance.

Frequently Asked Questions (FAQ)

Q: Can ECW-FD2W185K be used as a direct replacement for ECW-FD2W185KC?

A: Yes. The ECW-FD2W185K is a parametric equivalent with identical capacitance (1.8 µF), voltage rating (450V DC), tolerance (±10%), dielectric material (polypropylene metallized), physical dimensions (17.50mm x 10.10mm), lead spacing (15.00mm), and compliance certifications (ROHS3, REACH unaffected). Direct substitution is supported without circuit modification.

Q: Are there any mechanical compatibility concerns when substituting these parts?

A: No. Both parts share identical through-hole radial package specifications, physical dimensions, lead spacing (15.00mm), and PC pin termination. PCB footprints and mounting procedures remain unchanged.

Q: Do both parts operate across the same temperature range?

A: Yes. Both ECW-FD2W185KC and ECW-FD2W185K operate across the identical temperature range of -40°C to 110°C.

Q: Are regulatory certifications equivalent between these parts?

A: Yes. Both parts maintain ROHS3 compliance and REACH unaffected status. No regulatory differences exist between the two part numbers.

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

A: The ECW-FD2W185KC and ECW-FD2W185K are functionally and mechanically identical. The difference is limited to internal Panasonic part numbering conventions and current inventory availability.