ECW-FD2W125JC Equivalent & Substitute Parts

Part Overview

The ECW-FD2W125JC is a 1.2 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 designation. Substitute parts are identified when equivalent electrical and mechanical parameters align within the allowed specifications for this film capacitor category.

Substiute Parts

ECW-FD2W125JC

Panasonic Electronic ComponentsIn Stock: 912ECW-FD2W125JC Datasheet

Current PartRFQ

ECW-FD2W125J

Panasonic Electronic ComponentsIn Stock: 1059ECW-FD2W125J Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ECW-FD2W125JC is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Capacitance value: 1.2 µF (exact match required)
• DC voltage rating: 450V (exact match required)
• Tolerance: ±5% (exact match required)
• Dielectric material: Polypropylene (PP), Metallized (exact match required)

Mechanical Parameters:

• Mounting type: Through Hole (exact match required)
• Package configuration: Radial (exact match required)
• Lead spacing: 0.591" / 15.00mm (exact match required)
• Height seated maximum: 0.457" / 11.60mm (exact match required)
• Termination: PC Pins (exact match required)

Environmental & Compliance Parameters:

• Operating temperature range: -40°C ~ 110°C (exact match required)
• RoHS3 compliance status (required)
• REACH unaffected status (required)

The ECW-FD2W125J qualifies as a parametric equivalent based on full alignment with all electrical, mechanical, and compliance parameters listed above.

Parameter Comparison

Engineering Selection Recommendations

Both the ECW-FD2W125JC and ECW-FD2W125J maintain Active product status with full RoHS3 compliance and REACH unaffected designation. Selection between these parts is based on inventory availability and application requirements.

The ECW-FD2W125JC is the primary specification with 892 pieces in stock. The ECW-FD2W125J is available as a parametric equivalent with 999 pieces in stock. Both parts are manufactured by Panasonic Electronic Components within the ECW-F(D) series and share identical electrical, mechanical, and environmental specifications.

The substitute part ECW-FD2W125J includes an AC voltage rating specification of 84V, which is not declared in the main part ECW-FD2W125JC. This additional parameter does not affect DC circuit compatibility or performance in applications where AC voltage rating is not a design constraint.

Component selection should prioritize inventory availability and lead time requirements, as both parts are functionally equivalent for through-hole radial film capacitor applications requiring 1.2 µF capacitance at 450V DC with polypropylene dielectric construction.

Frequently Asked Questions (FAQ)

Q: Can ECW-FD2W125J be used as a direct replacement for ECW-FD2W125JC?

A: Yes. The ECW-FD2W125J is a parametric equivalent with identical capacitance (1.2 µF), DC voltage rating (450V), tolerance (±5%), dielectric material (polypropylene metallized), operating temperature range (-40°C ~ 110°C), and mechanical dimensions. Both parts feature radial through-hole mounting with identical lead spacing (15.00mm) and seated height (11.60mm).

Q: What is the difference between ECW-FD2W125JC and ECW-FD2W125J?

A: The primary difference is that ECW-FD2W125J includes an AC voltage rating specification of 84V, while ECW-FD2W125JC does not specify an AC rating. All other electrical and mechanical parameters are identical. Both parts are RoHS3 compliant and REACH unaffected.

Q: Are these parts interchangeable on printed circuit boards?

A: Yes. Both parts share identical mechanical specifications including radial package configuration, lead spacing of 0.591" (15.00mm), and maximum seated height of 0.457" (11.60mm). PCB footprints designed for either part accommodate both without modification.

Q: What applications are these capacitors suitable for?

A: Both ECW-FD2W125JC and ECW-FD2W125J are specified for EMI/RFI suppression, high-frequency switching circuits, and high pulse/DV/DT applications. The 450V DC rating and polypropylene dielectric construction support these performance requirements.

Q: Do both parts meet the same compliance standards?

A: Yes. Both ECW-FD2W125JC and ECW-FD2W125J are RoHS3 compliant and REACH unaffected. Both carry ECCN classification EAR99 and are suitable for applications requiring regulatory compliance in these areas.

Q: Which part should be selected based on availability?

A: Selection should be based on inventory status and procurement lead time. ECW-FD2W125JC has 892 pieces in stock, while ECW-FD2W125J has 999 pieces in stock. Both are Active products from Panasonic Electronic Components with equivalent performance characteristics.