ECQ-UBAF105KA Equivalent & Substitute Parts

Part Overview

The ECQ-UBAF105KA is a 1 µF film capacitor rated for 300V AC operation, utilizing polypropylene (PP) metallized dielectric technology in a radial through-hole configuration. This component is designed for EMI and RFI suppression applications with an operating temperature range of -40°C to 110°C.

The ECQ-UBAF105KA carries a "Not For New Designs" product status designation. This status indicates that while the part remains available in inventory (735 Pcs), Panasonic has discontinued active development and support for this series. Identifying equivalent substitute parts ensures design continuity and provides access to components with extended lifecycle support or improved availability.

Substiute Parts

ECQ-UBAF105KA

Panasonic Electronic ComponentsIn Stock: 780ECQ-UBAF105KA Datasheet

Current PartRFQ

ECQ-UBAF105K

Panasonic Electronic ComponentsIn Stock: 1315ECQ-UBAF105K Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ECQ-UBAF105KA is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Capacitance value: 1 µF (exact match required)
• Tolerance: ±10% (exact match required)
• Voltage Rating - AC: 300V (exact match required)
• Dielectric Material: Polypropylene (PP), Metallized (exact match required)

Mechanical Parameters:

• Mounting Type: Through Hole (exact match required)
• Package / Case: Radial (exact match required)
• Lead Spacing: 0.886" (22.50mm) (exact match required)
• Termination: PC Pins (exact match required)

Environmental & Compliance Parameters:

• Operating Temperature Range: -40°C ~ 110°C (exact match required)
• RoHS Status: ROHS3 Compliant (exact match required)

Substitute parts must satisfy all parameters listed above without deviation. Parts that differ in any of these specifications are not considered equivalent and cannot be used as direct replacements.

Parameter Comparison

Engineering Selection Recommendations

Both the ECQ-UBAF105KA and ECQ-UBAF105K are designated as "Not For New Designs" by Panasonic. This status applies uniformly across both parts, indicating that neither component is recommended for incorporation into new product development initiatives.

The ECQ-UBAF105K demonstrates higher current inventory availability (1269 Pcs) compared to the ECQ-UBAF105KA (735 Pcs). For applications requiring component replacement or repair of existing systems, the ECQ-UBAF105K provides equivalent electrical and mechanical performance with improved supply accessibility.

Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for industrial and commercial applications. The identical electrical specifications, mechanical dimensions, and environmental ratings ensure direct functional interchangeability in EMI and RFI suppression circuit applications.

Frequently Asked Questions (FAQ)

Q: Can the ECQ-UBAF105K be used as a direct replacement for the ECQ-UBAF105KA?

A: Yes. The ECQ-UBAF105K is a parametric equivalent that matches all critical electrical, mechanical, and environmental specifications of the ECQ-UBAF105KA. Both components share identical capacitance (1 µF), voltage rating (300V AC), dielectric material (polypropylene metallized), lead spacing (22.50mm), and operating temperature range (-40°C to 110°C). Direct substitution is supported without circuit modification.

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

A: This designation indicates that Panasonic has discontinued active development and lifecycle support for the ECQUB series. While both parts remain available in inventory, they are not recommended for new product designs. For new applications, consultation with component suppliers regarding current-generation alternatives is advised.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both the ECQ-UBAF105KA and ECQ-UBAF105K share identical physical dimensions: 1.024" L x 0.748" W (26.00mm x 19.00mm) with a maximum seated height of 1.043" (26.50mm) and lead spacing of 0.886" (22.50mm). PCB layout and mechanical clearance requirements are identical.

Q: Do these parts meet current regulatory compliance standards?

A: Both parts are ROHS3 compliant and REACH unaffected. They satisfy regulatory requirements for industrial and commercial applications. ECCN classification is EAR99 for both components.

Q: What is the difference between the ECQ-UBAF105KA and ECQ-UBAF105K part numbers?

A: The part numbers differ only in the final character designation (A versus K). Both parts belong to the same ECQUB series and share identical electrical and mechanical specifications. The difference reflects internal Panasonic product coding and does not indicate functional variation.

Q: Are these capacitors suitable for AC applications?

A: Yes. Both components are rated for 300V AC operation and are specifically designed for EMI and RFI suppression applications. The X1 rating classification confirms suitability for AC line voltage applications.