ECQ-UAAF105KA Film Capacitor Equivalent & Substitute Parts

Part Overview

The ECQ-UAAF105KA is a 1 µF film capacitor rated for 275V AC, featuring polypropylene (PP) metallized dielectric construction in a radial through-hole package. This component is classified as "Not For New Designs," indicating it has been superseded in Panasonic's product portfolio. Organizations using this part in existing designs or requiring replacement stock must identify functionally equivalent alternatives that maintain identical electrical and mechanical specifications.

Substiute Parts

ECQ-UAAF105KA

Panasonic Electronic ComponentsIn Stock: 1910ECQ-UAAF105KA Datasheet

Current PartRFQ

ECQ-UAAF105T1

Panasonic Electronic ComponentsIn Stock: 1085ECQ-UAAF105T1 Datasheet

Parametric EquivalentRFQ

ECQ-UAAF105TA

Panasonic Electronic ComponentsIn Stock: 1333ECQ-UAAF105TA Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the ECQ-UAAF105KA is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute parts ECQ-UAAF105T1 and ECQ-UAAF105TA are classified as parametric equivalents because they maintain identical specifications in the following categories:

• Capacitance value and tolerance (1 µF ±10%)
• Voltage rating (275V AC)
• Dielectric composition (Polypropylene, Metallized)
• Operating temperature range (-40°C to 110°C)
• Physical dimensions and lead spacing (26.00mm × 12.00mm, 22.50mm spacing)
• Mounting configuration (Through Hole, Radial)
• Compliance certifications (AEC-Q200, X2, ROHS3)

All three parts belong to the ECQ-UA series and share the same base product number designation, confirming their functional interchangeability within the specified parameter set.

Parameter Comparison

Engineering Selection Recommendations

All three parts—ECQ-UAAF105KA, ECQ-UAAF105T1, and ECQ-UAAF105TA—are classified as "Not For New Designs" by Panasonic, indicating they represent legacy product lines. Selection among these equivalents should be based on current inventory availability and supply chain considerations rather than technical differentiation, as they are electrically and mechanically identical.

Both substitute parts carry AEC-Q200 automotive qualification and X2 safety ratings, matching the original part's compliance profile. All three maintain ROHS3 compliance and are suitable for applications requiring EMI/RFI suppression in automotive environments.

Frequently Asked Questions (FAQ)

Q: Can ECQ-UAAF105T1 or ECQ-UAAF105TA be used as direct replacements for ECQ-UAAF105KA?

A: Yes. Both parts are parametric equivalents with identical capacitance, voltage rating, dielectric material, physical dimensions, lead spacing, and compliance certifications. Direct substitution is supported without circuit redesign.

Q: Are there any differences in the radial package configuration between these three parts?

A: No. All three parts share identical physical dimensions (26.00mm × 12.00mm), seated height (19.50mm maximum), and lead spacing (22.50mm). PCB layout and mounting procedures remain unchanged.

Q: Do all three parts meet automotive qualification requirements?

A: Yes. ECQ-UAAF105KA, ECQ-UAAF105T1, and ECQ-UAAF105TA all carry AEC-Q200 qualification and X2 safety ratings, confirming suitability for automotive applications.

Q: What is the significance of the "Not For New Designs" status?

A: This designation indicates that Panasonic has discontinued active development of these parts. While existing inventory remains available and parts are fully functional, new product designs should evaluate current-generation alternatives from Panasonic's active portfolio. Existing designs using these parts may continue to source from available stock or equivalent alternatives.

Q: How do I determine which substitute part to order?

A: Selection should be based on current inventory availability from your supplier. Since all three parts are electrically and mechanically identical, choose the part with the most favorable lead time and pricing.