ECQ-UBAF392KA Equivalent & Substitute Parts

Part Overview

The ECQ-UBAF392KA is a 3900 pF film capacitor manufactured by Panasonic Electronic Components, designed for EMI and RFI suppression applications. This radial polypropylene metallized capacitor operates at 300V AC with a ±10% tolerance and is rated for X1, Y2 safety classifications. The part is currently active in production with full RoHS3 compliance and REACH unaffected status. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the same product series, ensuring direct functional replacement without circuit redesign.

Substiute Parts

ECQ-UBAF392KA

Panasonic Electronic ComponentsIn Stock: 1119ECQ-UBAF392KA Datasheet

Current PartRFQ

ECQ-UBAF392K

Panasonic Electronic ComponentsIn Stock: 1807ECQ-UBAF392K Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ECQ-UBAF392KA is determined by strict parametric matching within the ECQUB series. The following parameters must remain identical for direct substitution:

• Capacitance value: 3900 pF
• Tolerance: ±10%
• Voltage Rating - AC: 300V
• Dielectric Material: Polypropylene (PP), Metallized
• Operating Temperature Range: -40°C ~ 110°C
• Mounting Type: Through Hole
• Package / Case: Radial
• Lead Spacing: 0.492" (12.50mm)
• Safety Ratings: X1, Y2
• Compliance: RoHS3 Compliant, REACH Unaffected

The ECQ-UBAF392K is classified as a parametric equivalent within this product category, maintaining all critical electrical and mechanical specifications required for direct board-level replacement.

Parameter Comparison

Engineering Selection Recommendations

Both ECQ-UBAF392KA and ECQ-UBAF392K are active production parts from Panasonic Electronic Components with identical electrical and mechanical specifications. Selection between these parts is based on inventory availability and supply chain considerations rather than technical performance differences.

The ECQ-UBAF392KA maintains 1068 pieces in current stock inventory, while the ECQ-UBAF392K has 1749 pieces available. Both parts carry full RoHS3 compliance and REACH unaffected status, meeting all regulatory requirements for industrial and commercial applications.

For applications requiring EMI and RFI suppression at 300V AC with X1, Y2 safety ratings, either part provides equivalent performance and board-level compatibility. The selection should be determined by procurement lead times, cost structure, and existing supply agreements.

Frequently Asked Questions (FAQ)

Q: Can ECQ-UBAF392K be used as a direct replacement for ECQ-UBAF392KA?

A: Yes. Both parts are parametric equivalents with identical capacitance (3900 pF), voltage rating (300V AC), tolerance (±10%), dielectric material (polypropylene metallized), operating temperature range (-40°C ~ 110°C), and physical dimensions. They share the same lead spacing (0.492"), radial package configuration, and safety ratings (X1, Y2).

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

A: No. Both ECQ-UBAF392KA and ECQ-UBAF392K carry identical RoHS3 compliance and REACH unaffected status. Both are classified as active production parts with no differences in regulatory standing.

Q: What is the significance of the lead spacing specification?

A: Lead spacing of 0.492" (12.50mm) is a critical mechanical parameter that determines PCB footprint compatibility. Both substitute parts maintain this specification, ensuring they fit existing board layouts without modification.

Q: Are these parts suitable for safety-critical applications?

A: Both parts carry X1, Y2 safety ratings, which classify them for use in EMI and RFI suppression circuits. The specific application requirements should be evaluated against these ratings and the operating voltage conditions of the circuit.

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

A: Both parts operate across -40°C to 110°C. This range must be verified against the thermal environment of the intended application to ensure reliable performance throughout the product lifecycle.