ECW-FD2W225KQ Equivalent & Substitute Parts

Part Overview

The ECW-FD2W225KQ is a 2.2 µF film capacitor rated for 450V DC operation with polypropylene dielectric material in a radial through-hole package. This component is designed for EMI/RFI suppression, high-frequency switching, and high pulse applications. The part maintains Active product status with full ROHS3 compliance and REACH unaffected certification. Substitute parts are identified to provide design flexibility while maintaining electrical and mechanical compatibility within specified parameter tolerances.

Substiute Parts

ECW-FD2W225KQ

Panasonic Electronic ComponentsIn Stock: 1074ECW-FD2W225KQ Datasheet

Current PartRFQ

ECW-FD2W225KB

Panasonic Electronic ComponentsIn Stock: 2081ECW-FD2W225KB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ECW-FD2W225KQ is determined by the following critical parameters:

• Capacitance value: 2.2 µF (exact match required)
• Tolerance: ±10% (exact match required)
• DC voltage rating: 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 and lead spacing (exact match required)
• Termination type: PC Pins (exact match required)

The ECW-FD2W225KB qualifies as a parametric equivalent based on matching all critical electrical and mechanical parameters. The presence of an AC voltage rating (84V) in the substitute part does not affect DC circuit compatibility, as the DC rating remains the controlling specification for this application category.

Parameter Comparison

Engineering Selection Recommendations

Both the ECW-FD2W225KQ and ECW-FD2W225KB maintain Active product status with identical compliance certifications (ROHS3 Compliant, REACH Unaffected). Selection between these parts is based on inventory availability and supply chain considerations, as electrical and mechanical parameters are equivalent. The ECW-FD2W225KB currently maintains higher inventory levels (2027 Pcs vs. 1013 Pcs), which may influence procurement decisions for high-volume applications. Both parts are suitable for direct substitution in circuits designed for the ECW-FD2W225KQ specification.

Frequently Asked Questions (FAQ)

Q: Can the ECW-FD2W225KB replace the ECW-FD2W225KQ in my circuit?

A: Yes. Both parts share identical capacitance (2.2 µF), tolerance (±10%), DC voltage rating (450V), dielectric material (Polypropylene metallized), operating temperature range (-40°C ~ 110°C), and physical dimensions. The AC voltage rating present in the ECW-FD2W225KB does not affect DC circuit operation.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both parts have identical dimensions (0.689" L x 0.437" W / 17.50mm x 11.10mm), maximum seated height (0.760" / 19.30mm), and lead spacing (0.295" / 7.50mm). They are mechanically interchangeable in through-hole PCB layouts.

Q: Do both parts meet the same compliance requirements?

A: Yes. Both the ECW-FD2W225KQ and ECW-FD2W225KB are ROHS3 Compliant and REACH Unaffected, meeting identical regulatory standards.

Q: What is the significance of the AC voltage rating on the ECW-FD2W225KB?

A: The AC voltage rating (84V) is an additional specification that does not affect DC circuit compatibility. For DC applications, the 450V DC rating is the controlling parameter for both parts.

Q: Are there any differences in termination or mounting between these parts?

A: No. Both parts use PC Pins termination and Through Hole mounting type, ensuring identical PCB assembly compatibility.