ECW-FE2W334QD Film Capacitor Equivalent & Substitute Parts

Part Overview

The ECW-FE2W334QD is a 0.33 µF film capacitor manufactured by Panasonic Electronic Components, designed for applications requiring EMI/RFI suppression, high-frequency switching, and high pulse DV/DT performance. This radial through-hole component operates across a temperature range of -40°C to 105°C and is rated for 450V DC operation. The part is currently active in production with 1771 units in stock. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the same product series, ensuring direct interchangeability in circuit designs.

Substiute Parts

ECW-FE2W334QD

Panasonic Electronic ComponentsIn Stock: 1858ECW-FE2W334QD Datasheet

Current PartRFQ

ECW-FE2W334Q5

Panasonic Electronic ComponentsIn Stock: 1922ECW-FE2W334Q5 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ECW-FE2W334QD is determined by strict equivalence across the following critical parameters:

• Capacitance value: 0.33 µF
• Tolerance specification: ±10%
• Voltage ratings: 450V DC / 84V AC
• Dielectric material: Polypropylene (PP), Metallized
• Operating temperature range: -40°C to 105°C
• Mounting configuration: Through Hole, Radial
• Lead spacing: 0.591" (15.00mm)
• Termination type: PC Pins
• Compliance certifications: ROHS3 Compliant

The ECW-FE2W334Q5 meets all these parameters and is classified as a parametric equivalent within the ECWFE series. Both parts share identical electrical specifications and mechanical dimensions, enabling direct substitution in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Both ECW-FE2W334QD and ECW-FE2W334Q5 are active production components manufactured by Panasonic Electronic Components within the ECWFE series. Both parts maintain ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component procurement. Selection between these parts may be based on inventory availability: ECW-FE2W334QD has 1771 units in stock, while ECW-FE2W334Q5 has 1905 units available. From an engineering perspective, either part provides equivalent performance in circuit applications requiring 0.33 µF capacitance at 450V DC with polypropylene dielectric construction.

Frequently Asked Questions (FAQ)

Q: Can ECW-FE2W334Q5 be used as a direct replacement for ECW-FE2W334QD?

A: Yes. Both parts are parametric equivalents with identical capacitance, voltage ratings, dielectric material, operating temperature range, and mechanical dimensions. Direct substitution is supported without circuit modification.

Q: Are there any differences in the physical package between these parts?

A: No. Both parts share identical dimensions: 0.689" L x 0.197" W (17.50mm x 5.00mm), with a maximum seated height of 0.433" (11.00mm) and lead spacing of 0.591" (15.00mm). PCB layout compatibility is maintained.

Q: Do both parts meet the same compliance standards?

A: Yes. Both ECW-FE2W334QD and ECW-FE2W334Q5 are ROHS3 compliant and REACH unaffected, meeting equivalent regulatory requirements.

Q: What applications are these capacitors suitable for?

A: Both parts are specified for EMI/RFI suppression, high-frequency switching, and high pulse DV/DT applications, with operating capability across -40°C to 105°C.

Q: Is there a performance difference between the two part numbers?

A: No. Electrical and mechanical specifications are identical. Both parts utilize polypropylene metallized dielectric construction and are rated for 450V DC / 84V AC operation with ±10% tolerance.