ECQ-B2123JF Film Capacitor Equivalent & Substitute Parts

Part Overview

The ECQ-B2123JF is a 0.012 µF film capacitor manufactured by Panasonic Electronic Components, rated for 200V DC operation with ±5% tolerance. This radial through-hole component uses polyester dielectric material and operates across the temperature range of -40°C to 105°C. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support and new design implementations.

Substiute Parts

ECQ-B2123JF

Panasonic Electronic ComponentsIn Stock: 1177ECQ-B2123JF Datasheet

Current PartRFQ

ECQ-E2123JF

Panasonic Electronic ComponentsIn Stock: 2117ECQ-E2123JF Datasheet

SimilarRFQ

DPFF2S12J-F

Cornell Dubilier Electronics (CDE)In Stock: 804DPFF2S12J-F Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ECQ-B2123JF is determined by the following critical parameters:

• Capacitance value must equal 0.012 µF
• Tolerance must be ±5% or tighter
• Voltage rating must meet or exceed 200V DC
• Mounting type must be through-hole radial configuration
• Lead spacing must be compatible with 0.295" (7.50mm) pitch
• Operating temperature range must encompass -40°C to 105°C minimum

Two substitute parts meet these criteria with variations in dielectric material composition and voltage rating elevation, both of which are acceptable for direct substitution in applications designed for the ECQ-B2123JF.

Parameter Comparison

Engineering Selection Recommendations

ECQ-E2123JF is the primary substitute for ECQ-B2123JF applications. Both components are manufactured by Panasonic Electronic Components within the same product family (ECQ series). The ECQ-E2123JF maintains identical capacitance, tolerance, and lead spacing while providing elevated voltage rating (250V DC versus 200V DC) and active product status. The metallized polyester dielectric offers improved performance characteristics compared to standard polyester. RoHS3 compliance and REACH unaffected status support modern manufacturing and environmental requirements.

DPFF2S12J-F from Cornell Dubilier Electronics serves as an alternative substitute when lead spacing accommodation is feasible. This component features polypropylene metallized dielectric with extended lower temperature rating (-55°C minimum) and elevated voltage rating (250V DC). The larger lead spacing (0.374" versus 0.295") requires PCB layout verification before implementation. RoHS3 compliance and REACH unaffected status align with current regulatory standards.

Frequently Asked Questions (FAQ)

Q: Can ECQ-E2123JF directly replace ECQ-B2123JF without PCB modification?

A: Yes. The ECQ-E2123JF maintains identical lead spacing (0.295" / 7.50mm) and radial through-hole configuration, enabling direct PCB substitution. The elevated voltage rating (250V versus 200V) and metallized polyester dielectric provide enhanced performance margins.

Q: What is the impact of dielectric material differences between substitutes?

A: The ECQ-B2123JF uses standard polyester dielectric. ECQ-E2123JF uses metallized polyester, and DPFF2S12J-F uses metallized polypropylene. All three materials are suitable for general-purpose film capacitor applications. Metallized variants offer improved volumetric efficiency and lower ESR characteristics.

Q: Does DPFF2S12J-F require PCB layout changes?

A: Yes. DPFF2S12J-F has lead spacing of 0.374" (9.50mm) compared to the original 0.295" (7.50mm). PCB hole pattern verification is required before implementation.

Q: Are both substitutes RoHS compliant?

A: Yes. ECQ-E2123JF and DPFF2S12J-F are both ROHS3 compliant, meeting current environmental and manufacturing standards.

Q: What is the temperature operating range difference?

A: ECQ-B2123JF and ECQ-E2123JF both operate from -40°C to 105°C. DPFF2S12J-F extends the lower limit to -55°C, providing broader temperature coverage for demanding applications.