ECW-FE2W155KA Equivalent & Substitute Parts

Part Overview

The ECW-FE2W155KA is a 1.5 µF film capacitor manufactured by Panasonic Electronic Components, rated for 450V DC operation with polypropylene metallized dielectric. This radial through-hole component is designed for EMI/RFI suppression, high-frequency switching, and high pulse applications. The part is currently active in production with 964 units in stock and maintains ROHS3 compliance and REACH unaffected status. Substitute parts are identified when equivalent electrical and mechanical parameters allow direct replacement in circuit applications.

Substiute Parts

ECW-FE2W155KA

Panasonic Electronic ComponentsIn Stock: 1067ECW-FE2W155KA Datasheet

Current PartRFQ

ECW-FE2W155K

Panasonic Electronic ComponentsIn Stock: 2300ECW-FE2W155K Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ECW-FE2W155KA is determined by strict equivalence across the following critical parameters:

• Capacitance value: 1.5 µF (exact match required)
• Tolerance: ±10% (exact match required)
• DC voltage rating: 450V (minimum requirement; higher ratings acceptable)
• Dielectric material: Polypropylene (PP), Metallized (exact match required)
• Operating temperature range: -40°C ~ 105°C (exact match required)
• Mounting type: Through Hole (exact match required)
• Package / Case: Radial (exact match required)
• Lead spacing: 0.591" (15.00mm) (exact match required)
• Physical dimensions: 0.689" L x 0.394" W (17.50mm x 10.00mm) (exact match required)
• Termination: PC Pins (exact match required)

The ECW-FE2W155K meets all substitution criteria and is classified as a parametric equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both the ECW-FE2W155KA and ECW-FE2W155K 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 manufacturing and distribution.

The ECW-FE2W155K is a direct parametric equivalent suitable for applications requiring the specified electrical and mechanical characteristics. Selection between these parts may be based on inventory availability, lead time, or procurement requirements, as both parts satisfy identical functional and compliance criteria.

Frequently Asked Questions (FAQ)

Q: Can ECW-FE2W155K replace ECW-FE2W155KA in all applications?

A: Yes. The ECW-FE2W155K is a parametric equivalent with identical capacitance (1.5 µF), tolerance (±10%), DC voltage rating (450V), dielectric material (polypropylene metallized), operating temperature range (-40°C ~ 105°C), mounting type (through hole), package configuration (radial), physical dimensions, lead spacing, and termination type. Both parts are ROHS3 compliant and REACH unaffected.

Q: Are there differences in AC voltage rating between these parts?

A: The ECW-FE2W155KA does not specify an AC voltage rating. The ECW-FE2W155K specifies 84V AC. For applications requiring AC voltage operation, the ECW-FE2W155K provides this specification. For DC-only applications, both parts are equivalent.

Q: Do these parts have identical physical footprints?

A: Yes. Both parts share identical dimensions (0.689" L x 0.394" W / 17.50mm x 10.00mm), height (0.610" / 15.50mm maximum seated), and lead spacing (0.591" / 15.00mm). They are mechanically interchangeable on PCB layouts designed for radial through-hole film capacitors with these specifications.

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 metallized dielectric support these use cases.

Q: Are both parts currently available?

A: Both parts maintain active production status. The ECW-FE2W155KA has 964 units in stock, and the ECW-FE2W155K has 2275 units in stock.