ECQ-V1184JM9 Equivalent & Substitute Parts

Part Overview

The ECQ-V1184JM9 is a 0.18 µF film capacitor rated for 100V DC, manufactured by Panasonic Electronic Components. This radial through-hole component uses polyester metallized-stacked dielectric technology and operates across a temperature range of -40°C to 105°C. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and production continuity.

Substiute Parts

ECQ-V1184JM9

Panasonic Electronic ComponentsIn Stock: 844ECQ-V1184JM9 Datasheet

Current PartRFQ

B32529C1184J189

EPCOS - TDK ElectronicsIn Stock: 8975B32529C1184J189 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ECQ-V1184JM9 is based on the following critical parameters:

• Capacitance Value: 0.18 µF (exact match required)
• Tolerance: ±5% (exact match required)
• Voltage Rating - DC: 100V (minimum requirement; higher ratings are acceptable)
• Dielectric Material: Polyester-based metallized-stacked construction
• Mounting Type: Through Hole radial configuration
• Lead Spacing: 0.197" (5.00mm) for PCB compatibility
• Termination: PC Pins

The B32529C1184J189 from EPCOS - TDK Electronics meets all substitution criteria. This part maintains identical capacitance, tolerance, DC voltage rating, dielectric composition, mounting configuration, and lead spacing. The substitute operates across an extended temperature range (-55°C ~ 125°C) compared to the original, providing enhanced thermal performance.

Parameter Comparison

Engineering Selection Recommendations

The B32529C1184J189 is a direct functional equivalent for the ECQ-V1184JM9. Selection of this substitute is supported by:

• Electrical Equivalence: Identical capacitance (0.18 µF), tolerance (±5%), and DC voltage rating (100V)
• Physical Compatibility: Matching radial through-hole package, lead spacing (5.00mm), and PC pin termination ensure direct PCB substitution without layout modification
• Product Status: The substitute is an active production component, ensuring long-term availability and supply chain stability
• Compliance: The B32529C1184J189 carries ROHS3 compliance certification, meeting current regulatory requirements
• Enhanced Performance: Extended operating temperature range (-55°C ~ 125°C) provides thermal margin beyond the original specification

Frequently Asked Questions (FAQ)

Q: Can the B32529C1184J189 be used as a direct replacement for the ECQ-V1184JM9 without PCB modification?

A: Yes. Both components share identical lead spacing (5.00mm), radial through-hole configuration, and PC pin termination. Direct substitution on existing PCBs is possible without layout changes.

Q: What is the significance of the extended temperature range in the substitute part?

A: The B32529C1184J189 operates from -55°C to 125°C, compared to the original -40°C to 105°C range. This provides additional thermal margin for applications subject to extreme environmental conditions, though it does not alter electrical performance within the original operating window.

Q: Are there any differences in dielectric material between the two parts?

A: Both use polyester-based metallized-stacked dielectric construction. The B32529C1184J189 specifies polyethylene terephthalate (PET) as the polyester type, which is a standard formulation for this capacitor class and maintains electrical equivalence.

Q: Does the AC voltage rating on the substitute part affect DC-only applications?

A: No. The AC voltage rating (63V) on the B32529C1184J189 is independent of its DC performance. For DC-only circuits, the 100V DC rating is the controlling specification for both parts.

Q: What compliance certifications apply to the substitute part?

A: The B32529C1184J189 is ROHS3 compliant and carries REACH Unaffected status, meeting current environmental and regulatory requirements for electronic components.