ECQ-V1124JM3 Equivalent & Substitute Parts

Part Overview

The ECQ-V1124JM3 is a 0.12 µF film capacitor rated for 100V DC with ±5% tolerance, manufactured by Panasonic Electronic Components. This radial through-hole component uses polyester metallized-stacked dielectric technology and operates across -40°C to 105°C. The product is currently obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and component procurement.

Substiute Parts

ECQ-V1124JM3

Panasonic Electronic ComponentsIn Stock: 1139ECQ-V1124JM3 Datasheet

Current PartRFQ

B32529C1124J289

EPCOS - TDK ElectronicsIn Stock: 1144B32529C1124J289 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The B32529C1124J289 qualifies as a direct substitute based on the following critical parameters:

• Capacitance Match: Both parts are 0.12 µF
• Tolerance Match: Both maintain ±5% tolerance
• Voltage Rating: B32529C1124J289 supports 100V DC, meeting or exceeding the original specification
• Dielectric Technology: Both use polyester metallized-stacked construction
• Mounting Configuration: Both are radial through-hole components with identical 0.197" (5.00mm) lead spacing
• Termination: Both use PC pins for PCB mounting
• Physical Compatibility: Identical lead spacing ensures direct PCB footprint compatibility

The substitute part expands the operating temperature range to -55°C ~ 125°C and includes additional AC voltage rating (63V), providing enhanced performance margins without compromising the original application requirements.

Parameter Comparison

Engineering Selection Recommendations

The B32529C1124J289 is the appropriate substitute for ECQ-V1124JM3 applications. The substitute part maintains electrical equivalence across all critical parameters: identical capacitance, tolerance, and DC voltage rating. Physical compatibility is assured through matching lead spacing and radial through-hole configuration.

The substitute part offers additional advantages: active product status ensures ongoing availability, ROHS3 compliance satisfies current regulatory requirements, and extended operating temperature range (-55°C ~ 125°C versus -40°C ~ 105°C) provides enhanced thermal margin. Both parts carry REACH Unaffected and EAR99 ECCN classifications.

Frequently Asked Questions (FAQ)

Q: Can B32529C1124J289 be used as a direct replacement on existing PCBs designed for ECQ-V1124JM3?

A: Yes. Both parts share identical lead spacing (0.197" / 5.00mm), radial package configuration, and PC pin termination. No PCB layout modifications are required.

Q: Are the electrical characteristics identical between these parts?

A: The critical electrical parameters are identical: 0.12 µF capacitance, ±5% tolerance, and 100V DC rating. The substitute part includes an additional 63V AC rating not specified in the original part.

Q: What is the significance of the extended temperature range in B32529C1124J289?

A: The substitute operates from -55°C to 125°C compared to the original -40°C to 105°C range. This provides additional thermal margin but does not affect compatibility with applications designed for the original temperature specification.

Q: Why is the original ECQ-V1124JM3 marked as obsolete?

A: Panasonic has discontinued this product line. The B32529C1124J289 from EPCOS - TDK Electronics remains in active production with equivalent specifications.

Q: Does the substitute part meet current compliance standards?

A: Yes. B32529C1124J289 is ROHS3 compliant and carries REACH Unaffected status, meeting current regulatory requirements for electronic component procurement.

Q: Is packaging format a consideration when selecting between these parts?

A: The original ECQ-V1124JM3 packaging format is not specified in available data. The substitute B32529C1124J289 is supplied in Tape & Box (TB) format, standard for through-hole radial capacitors in production environments.