ECQ-V1J124JM5 Equivalent & Substitute Parts

Part Overview

The ECQ-V1J124JM5 is a 0.12 µF film capacitor rated for 63V DC, manufactured by Panasonic Electronic Components in the ECQ-V series. This component features a polyester metallized-stacked radial configuration with ±5% tolerance and is designed for general-purpose applications. The part is currently obsolete, making identification of compatible substitute components essential for ongoing system support and maintenance.

Substiute Parts

ECQ-V1J124JM5

Panasonic Electronic ComponentsIn Stock: 745ECQ-V1J124JM5 Datasheet

Current PartRFQ

B32529C0124J189

EPCOS - TDK ElectronicsIn Stock: 745B32529C0124J189 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ECQ-V1J124JM5 is determined by strict equivalence across the following critical parameters:

• Capacitance Value: 0.12 µF (exact match required)
• Tolerance: ±5% (acceptable range for general-purpose applications)
• Voltage Rating - DC: 63V minimum (equal or higher ratings are acceptable)
• Dielectric Type: Polyester metallized-stacked construction
• Mounting Configuration: Through-hole radial package
• Lead Spacing: 0.197" (5.00mm) for PCB compatibility
• Termination Style: PC pins for direct board insertion

The substitute part B32529C0124J189 meets all these criteria, providing functional and mechanical compatibility with the original ECQ-V1J124JM5 in applications requiring this specific capacitance and voltage rating.

Parameter Comparison

Engineering Selection Recommendations

The B32529C0124J189 from EPCOS - TDK Electronics is a direct functional substitute for the obsolete ECQ-V1J124JM5. Selection is based on the following factors:

Electrical Equivalence: Both components share identical capacitance (0.12 µF), tolerance (±5%), and DC voltage rating (63V). The substitute provides an extended operating temperature range (-55°C ~ 125°C versus -40°C ~ 105°C), which offers improved performance margin in temperature-sensitive applications.

Mechanical Compatibility: Lead spacing (0.197" / 5.00mm), termination style (PC pins), and radial package configuration are identical, ensuring direct PCB mounting compatibility without layout modifications.

Product Status and Compliance: The B32529C0124J189 is an active product with ROHS3 compliance certification, providing long-term availability and regulatory alignment for new designs and system updates.

Application Suitability: The substitute is rated for automotive applications and EMI/RFI suppression, confirming its capability for general-purpose use cases equivalent to the original component.

Frequently Asked Questions (FAQ)

Q: Can the B32529C0124J189 be used as a direct replacement for ECQ-V1J124JM5 without PCB modifications?

A: Yes. Both components feature identical lead spacing (0.197" / 5.00mm), radial package configuration, and PC pin termination. Direct board-level substitution is possible without layout changes.

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

A: The B32529C0124J189 operates from -55°C to 125°C, compared to the original -40°C to 105°C range. This wider temperature envelope provides additional performance margin in applications subject to thermal stress, though both parts meet the original specification requirements.

Q: Are there any compliance differences between the two parts?

A: The B32529C0124J189 carries ROHS3 compliance certification. Both components are REACH Unaffected and classified as EAR99 for export purposes. The substitute's active product status ensures ongoing regulatory support and availability.

Q: Does the AC voltage rating difference affect substitution suitability?

A: The original ECQ-V1J124JM5 does not specify an AC voltage rating. The substitute B32529C0124J189 is rated for 40V AC. For applications requiring AC voltage operation, the substitute's AC rating must be verified against circuit requirements.

Q: What packaging formats are available for the substitute part?

A: The B32529C0124J189 is supplied in Tape & Reel (TR) format, suitable for automated assembly processes. Verify packaging compatibility with your procurement and assembly workflow.