ECQ-UBAF153KA Equivalent & Substitute Parts

Part Overview

The ECQ-UBAF153KA is a 0.015 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-UBAF153KA carries a "Not For New Designs" product status designation. This status indicates that while the part remains available in inventory and suitable for replacement, repair, and legacy system applications, it is not recommended for incorporation into new product designs. Identifying equivalent substitute parts is essential for maintaining design flexibility, ensuring supply chain continuity, and supporting long-term component availability for existing installations.

Substiute Parts

ECQ-UBAF153KA

Panasonic Electronic ComponentsIn Stock: 736ECQ-UBAF153KA Datasheet

Current PartRFQ

ECQ-UBAF153K

Panasonic Electronic ComponentsIn Stock: 1341ECQ-UBAF153K Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ECQ-UBAF153KA is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Capacitance value: 0.015 µF (exact match required)
• Tolerance: ±10% (exact match required)
• Voltage Rating - AC: 300V (exact match required)
• Dielectric Material: Polypropylene (PP), Metallized (exact match required)
• Operating Temperature Range: -40°C ~ 110°C (exact match required)
• Ratings Classification: X1 (exact match required)

Mechanical Parameters:

• Mounting Type: Through Hole (exact match required)
• Package / Case: Radial (exact match required)
• Lead Spacing: 0.591" (15.00mm) (exact match required)
• Physical Dimensions: 0.728" L x 0.236" W (18.50mm x 6.00mm) (exact match required)
• Height - Seated (Max): 0.433" (11.00mm) (exact match required)
• Termination: PC Pins (exact match required)

Compliance Parameters:

• RoHS Status: ROHS3 Compliant (exact match required)

Substitute parts must satisfy all parameters listed above to ensure direct functional and mechanical interchangeability without circuit modification or PCB rework.

Parameter Comparison

Engineering Selection Recommendations

The ECQ-UBAF153K is a direct parametric equivalent to the ECQ-UBAF153KA. Both components are manufactured by Panasonic Electronic Components within the ECQUB series and share identical electrical, mechanical, and compliance specifications.

Product Status Consideration: Both the main part (ECQ-UBAF153KA) and the substitute part (ECQ-UBAF153K) carry "Not For New Designs" status. This designation applies uniformly across the ECQUB series and reflects the manufacturer's product lifecycle positioning. For applications requiring components suitable for new product development, alternative series from current-generation film capacitor lines should be evaluated.

Compliance and Regulatory Status: Both parts maintain ROHS3 compliance and REACH Unaffected status, ensuring compatibility with current environmental and regulatory requirements for electronic component procurement and deployment.

Inventory and Availability: The ECQ-UBAF153K maintains higher inventory availability (1267 Pcs) compared to the ECQ-UBAF153KA (705 Pcs), providing improved supply chain flexibility for replacement and repair applications.

Frequently Asked Questions (FAQ)

Q: Can the ECQ-UBAF153K be used as a direct replacement for the ECQ-UBAF153KA?

A: Yes. The ECQ-UBAF153K is a direct parametric equivalent. All electrical specifications (capacitance, voltage rating, tolerance, dielectric material, temperature range), mechanical dimensions (lead spacing, physical size, height), mounting configuration (through-hole radial), and termination type (PC pins) are identical. No circuit modification or PCB rework is required.

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

A: This designation indicates that both the ECQ-UBAF153KA and ECQ-UBAF153K are in the mature or end-of-life phase of their product lifecycle. These parts remain available for replacement, repair, and legacy system support. For new product development, current-generation film capacitor alternatives should be evaluated.

Q: Are there any differences in RoHS or REACH compliance between these parts?

A: No. Both the ECQ-UBAF153KA and ECQ-UBAF153K are ROHS3 Compliant and REACH Unaffected. Compliance status is identical.

Q: Do these capacitors have identical physical dimensions and lead spacing?

A: Yes. Both parts have identical dimensions of 0.728" L x 0.236" W (18.50mm x 6.00mm), maximum seated height of 0.433" (11.00mm), and lead spacing of 0.591" (15.00mm). They are mechanically interchangeable without PCB modification.

Q: What applications are these capacitors designed for?

A: Both the ECQ-UBAF153KA and ECQ-UBAF153K are specified for EMI and RFI suppression applications. The X1 rating classification indicates suitability for line-to-ground filtering in AC mains circuits.

Q: Is there a difference in inventory availability between these parts?

A: Yes. The ECQ-UBAF153K has higher current inventory (1267 Pcs) compared to the ECQ-UBAF153KA (705 Pcs). For applications requiring immediate availability, the ECQ-UBAF153K may offer supply chain advantages.

Q: What is the operating temperature range for these capacitors?

A: Both parts operate across the identical temperature range of -40°C to 110°C, ensuring consistent performance across standard industrial and commercial temperature environments.