ECQ-M2184KZ Equivalent & Substitute Parts

Part Overview

The ECQ-M2184KZ is a 0.18 µF film capacitor rated for 200V DC with ±10% tolerance, manufactured by Panasonic Electronic Components in the ECQ-M series. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The radial through-hole configuration with PC pin termination serves general-purpose applications in electronic circuits requiring stable capacitance performance across the -40°C to 85°C operating range.

Substiute Parts

ECQ-M2184KZ

Panasonic Electronic ComponentsIn Stock: 1105ECQ-M2184KZ Datasheet

Current PartRFQ

ECQ-E2184KF

Panasonic Electronic ComponentsIn Stock: 1188ECQ-E2184KF Datasheet

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BFC237341184

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 1225BFC237341184 Datasheet

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DME2P18K-F

Cornell Dubilier Electronics (CDE)In Stock: 886DME2P18K-F Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ECQ-M2184KZ are qualified based on the following criteria:

• Capacitance Match: All substitutes maintain 0.18 µF nominal value with ±10% tolerance
• Voltage Rating: Substitute parts rated at 250V DC exceed the original 200V requirement, providing backward compatibility
• Dielectric Type: Polyester film construction maintained across all substitutes
• Mounting Configuration: Through-hole radial package with PC pin termination preserved
• Tolerance Class: ±10% tolerance specification consistent across all parts

The three qualified substitutes (ECQ-E2184KF, BFC237341184, DME2P18K-F) meet these core electrical and mechanical parameters. Physical dimensions and lead spacing vary among substitutes; verification against PCB layout is required prior to implementation.

Parameter Comparison

Engineering Selection Recommendations

ECQ-E2184KF (Panasonic): Active product status with ROHS3 compliance. Maintains Panasonic manufacturer continuity. Lead spacing of 0.394" (10.00mm) differs from original; PCB layout verification required. Extended operating temperature range to 105°C provides improved thermal margin.

BFC237341184 (Vishay Beyschlag): Active product with ROHS3 compliance and Long Life feature designation. Lead spacing of 0.591" (15.00mm) provides intermediate spacing option. Extended temperature range to 105°C and wider operating envelope (-55°C to 105°C) support demanding applications.

DME2P18K-F (Cornell Dubilier): Active product with ROHS3 compliance and highest operating temperature rating (125°C). Lead spacing of 0.394" (10.00mm) matches ECQ-E2184KF. Suitable for high-temperature environments. REACH Unaffected status confirmed.

All three substitutes provide 250V DC rating, exceeding the original 200V specification and ensuring electrical compatibility in the original circuit application.

Frequently Asked Questions (FAQ)

Q: Can ECQ-E2184KF, BFC237341184, or DME2P18K-F be used directly as drop-in replacements for ECQ-M2184KZ?

A: Electrical compatibility is confirmed for all three substitutes. However, lead spacing differs from the original part. ECQ-E2184KF and DME2P18K-F feature 0.394" (10.00mm) lead spacing, while BFC237341184 uses 0.591" (15.00mm). PCB layout verification is required to confirm mechanical fit before implementation.

Q: What is the significance of the higher voltage ratings on substitute parts?

A: All substitutes are rated at 250V DC, compared to the original 200V DC rating. This higher voltage rating provides additional safety margin and ensures the substitute will function reliably in the original circuit application without derating.

Q: Are all substitute parts RoHS compliant?

A: Yes. ECQ-E2184KF, BFC237341184, and DME2P18K-F are all ROHS3 compliant, meeting current environmental and regulatory requirements for electronic component manufacturing.

Q: How do operating temperature ranges compare?

A: The original ECQ-M2184KZ operates from -40°C to 85°C. Substitutes extend this range: ECQ-E2184KF to -40°C to 105°C, BFC237341184 to -55°C to 105°C, and DME2P18K-F to -55°C to 125°C. Extended ranges provide flexibility for applications with broader thermal requirements.

Q: What is the difference between standard polyester and metallized polyester dielectric?

A: The original part uses polyester film dielectric. All substitutes use polyester with metallization, which provides improved performance characteristics while maintaining the same capacitance and tolerance specifications. This is a standard evolution in film capacitor technology.

Q: Which substitute should be selected for space-constrained PCB layouts?

A: ECQ-E2184KF and DME2P18K-F both feature 0.394" (10.00mm) lead spacing, the smallest among the three options. Physical dimensions should be verified against available PCB footprint space.