ECQ-E2184KS Equivalent & Substitute Parts

Part Overview

The ECQ-E2184KS is a 0.18 µF film capacitor rated for 250V DC operation with polyester metallized dielectric construction. Manufactured by Panasonic Electronic Components as part of the ECQ-E(K) series, this component is classified as obsolete. Due to its discontinued status, identifying functionally equivalent substitute parts is essential for ongoing design support, maintenance, and production continuity.

Substiute Parts

ECQ-E2184KS

Panasonic Electronic ComponentsIn Stock: 858ECQ-E2184KS Datasheet

Current PartRFQ

ECQ-E2184KF

Panasonic Electronic ComponentsIn Stock: 1188ECQ-E2184KF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ECQ-E2184KS is determined by strict equivalence across the following critical parameters:

• Capacitance Value: Must be 0.18 µF
• Tolerance: Must be ±10%
• Voltage Rating - DC: Must be 250V or higher
• Dielectric Material: Must be Polyester, Metallized
• Mounting Type: Must be Through Hole Radial
• Termination: Must be PC Pins

The ECQ-E2184KF qualifies as a direct substitute based on matching all mandatory electrical parameters. Physical dimensions and lead spacing differ slightly, but both components maintain radial through-hole configuration with PC pin termination, permitting board-level compatibility with appropriate PCB layout verification.

Parameter Comparison

Engineering Selection Recommendations

The ECQ-E2184KF is the qualified substitute for the obsolete ECQ-E2184KS. Both components share identical electrical specifications: 0.18 µF capacitance, ±10% tolerance, and 250V DC rating with polyester metallized dielectric.

The ECQ-E2184KF offers extended operating temperature range (-40°C ~ 105°C versus -40°C ~ 85°C) and active product status, ensuring long-term availability and supply chain stability. The substitute carries ROHS3 compliance and REACH unaffected certification, meeting current regulatory requirements.

Physical dimensions differ: the ECQ-E2184KF is more compact (12.00mm x 5.00mm versus 17.50mm x 5.50mm) with reduced lead spacing (10.00mm versus 15.00mm). PCB layout modification is required to accommodate the smaller footprint and adjusted lead spacing. Electrical performance and functional equivalence remain unaffected by these dimensional changes.

Frequently Asked Questions (FAQ)

Q: Can the ECQ-E2184KF directly replace the ECQ-E2184KS without circuit modification?

A: Electrical substitution is direct. The capacitance, tolerance, voltage rating, and dielectric material are identical. However, PCB layout modification is necessary due to different physical dimensions and lead spacing. The ECQ-E2184KF requires a smaller footprint pattern with 10.00mm lead spacing instead of 15.00mm.

Q: What is the impact of the extended operating temperature range on the ECQ-E2184KF?

A: The ECQ-E2184KF operates to 105°C maximum versus 85°C for the ECQ-E2184KS. This provides additional thermal margin in applications approaching the original temperature limit. No circuit redesign is required; the substitute is functionally superior in this parameter.

Q: Are there compliance differences between the two parts?

A: The ECQ-E2184KF carries ROHS3 compliance and REACH unaffected certification. The ECQ-E2184KS compliance status is not specified. For applications requiring regulatory compliance documentation, the ECQ-E2184KF provides certified compliance status.

Q: Does the smaller physical size of the ECQ-E2184KF affect electrical performance?

A: No. Electrical characteristics remain identical. The compact design reflects manufacturing improvements in the active ECQ-E(F) series. Capacitance, tolerance, voltage rating, and dielectric properties are unaffected by the reduced physical dimensions.

Q: What is the lead spacing difference and why does it matter?

A: The ECQ-E2184KS has 15.00mm lead spacing; the ECQ-E2184KF has 10.00mm lead spacing. This difference requires PCB footprint redesign. Verify hole spacing and trace routing compatibility before board layout finalization.