ECQ-V1273JM Film Capacitor - Equivalent & Substitute Parts

Part Overview

The ECQ-V1273JM is a 0.027 µF film capacitor manufactured by Panasonic Electronic Components, rated for 100V DC operation with ±5% tolerance. This component features a polyester metallized-stacked dielectric construction in a radial through-hole package. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support and procurement planning.

Substiute Parts

ECQ-V1273JM

Panasonic Electronic ComponentsIn Stock: 817ECQ-V1273JM Datasheet

Current PartRFQ

168273J100A-F

Cornell Dubilier Electronics (CDE)In Stock: 932168273J100A-F Datasheet

DirectRFQ

B32529C1273J289

EPCOS - TDK ElectronicsIn Stock: 743B32529C1273J289 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ECQ-V1273JM is determined by strict equivalence across the following critical parameters:

• Capacitance Value: 0.027 µF (exact match required)
• DC Voltage Rating: Minimum 100V (equal or higher acceptable)
• Tolerance: ±5% (matching specification)
• Dielectric Type: Polyester-based metallized film (functionally equivalent variants acceptable)
• Mounting Configuration: Through-hole radial package
• Lead Spacing: 0.197" (5.00mm) center-to-center
• Termination Style: PC pins

Both identified substitute parts meet these criteria. The Cornell Dubilier Electronics 168273J100A-F and EPCOS B32529C1273J289 maintain identical capacitance, tolerance, voltage rating, and lead spacing specifications. Physical dimensions vary slightly, but both components fit standard PCB layouts designed for 5.00mm radial lead spacing.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts are classified as active products with current manufacturing status, addressing the obsolescence of the ECQ-V1273JM. The Cornell Dubilier 168273J100A-F and EPCOS B32529C1273J289 are ROHS3 compliant, meeting modern regulatory requirements. Both maintain REACH unaffected status consistent with the original component.

The Cornell Dubilier part offers an extended operating temperature range (-55°C ~ 125°C) compared to the original specification (-40°C ~ 105°C), providing additional thermal margin for demanding applications. The EPCOS component similarly extends the temperature range and is specified for automotive and EMI/RFI suppression applications, indicating suitability for industrial environments.

Physical dimensions differ marginally between the three parts. The original ECQ-V1273JM measures 0.295" L × 0.126" W with 0.315" seated height. The Cornell Dubilier substitute is slightly more compact at 0.283" L × 0.098" W with 0.256" seated height. The EPCOS part does not specify seated height but maintains the same lead spacing. These dimensional variations are within typical PCB layout tolerances for radial component footprints.

Frequently Asked Questions (FAQ)

Q: Can the Cornell Dubilier 168273J100A-F or EPCOS B32529C1273J289 be used as direct replacements for the ECQ-V1273JM?

A: Yes. Both parts meet the critical electrical specifications: 0.027 µF capacitance, ±5% tolerance, 100V DC rating, and 5.00mm lead spacing. Physical dimensions vary slightly, but both fit standard radial capacitor footprints designed for the original component.

Q: What is the difference between the two substitute parts?

A: Both maintain identical electrical specifications. The Cornell Dubilier part is packaged in bulk; the EPCOS part is supplied in tape and box format. The EPCOS component specifies automotive and EMI/RFI suppression applications. Operating temperature ranges are equivalent (-55°C ~ 125°C for both).

Q: Does the extended temperature range of the substitute parts affect circuit performance?

A: The extended operating range (-55°C ~ 125°C versus -40°C ~ 105°C) provides additional thermal margin but does not alter electrical performance within the original design specifications. Capacitance tolerance and voltage rating remain equivalent.

Q: Are there packaging considerations when substituting these parts?

A: The Cornell Dubilier part is supplied in bulk packaging; the EPCOS part is supplied in tape and box format. Procurement and assembly processes may require adjustment based on packaging preference and manufacturing workflow.

Q: Do the substitute parts meet current regulatory compliance?

A: Yes. Both substitute parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards. The original ECQ-V1273JM does not specify RoHS status but maintains REACH unaffected status.