Equivalent & Substitute Parts for ECA-2DM4R7

Part Overview

The Panasonic ECA-2DM4R7 is a 4.7 µF, 200 V aluminum electrolytic capacitor in radial, can package with a rated lifetime of 2000 hours at 85°C. This component is classified as Active and suitable for general-purpose applications. Substitute parts are identified based on matching capacitance, tolerance, and mechanical compatibility while allowing for voltage rating upgrades and improved thermal performance characteristics.

Substiute Parts

ECA-2DM4R7

Panasonic Electronic ComponentsIn Stock: 1154ECA-2DM4R7 Datasheet

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ECA-2EHG4R7

Panasonic Electronic ComponentsIn Stock: 4164ECA-2EHG4R7 Datasheet

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ECA-2EM4R7

Panasonic Electronic ComponentsIn Stock: 1945ECA-2EM4R7 Datasheet

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475CKS400MFH

Cornell Dubilier / Illinois CapacitorIn Stock: 31588475CKS400MFH Datasheet

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UVC2G4R7MPD

NichiconIn Stock: 10405UVC2G4R7MPD Datasheet

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UVR2D4R7MPD

NichiconIn Stock: 992UVR2D4R7MPD Datasheet

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UVR2E4R7MPD

NichiconIn Stock: 1188UVR2E4R7MPD Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ECA-2DM4R7 is determined by the following criteria:

Primary Matching Parameters:

• Capacitance: 4.7 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Polarization: Polar (exact match required)
• Lead Spacing: 0.138" (4.60mm) (exact match required)
• Size / Dimension: 0.315" Dia (8.00mm) (exact match required)
• Mounting Type: Through Hole (exact match required)
• Package / Case: Radial, Can (exact match required)

Allowable Variation Parameters:

• Voltage - Rated: May be equal to or greater than 200 V
• Height - Seated (Max): May be equal to or up to 0.512" (13.00mm)
• Lifetime @ Temperature: May be equal to or greater than 2000 Hrs @ 85°C
• Operating Temperature Range: May be equal to or extended beyond -25°C ~ 85°C
• RoHS Status: Must maintain ROHS3 Compliance

Substitute parts identified are grouped into two categories: direct voltage equivalents (200 V and 250 V ratings) and higher voltage alternatives (400 V ratings).

Parameter Comparison

Engineering Selection Recommendations

For Active Product Status: ECA-2EM4R7, ECA-2EHG4R7, 475CKS400MFH, and UVC2G4R7MPD are classified as Active and suitable for new designs. These parts maintain full manufacturer support and are recommended for applications requiring long-term component availability.

For Extended Thermal Performance: ECA-2EHG4R7 and UVC2G4R7MPD offer extended operating temperature ranges (-25°C ~ 105°C and -40°C ~ 105°C respectively) and higher temperature lifetime ratings (2000 Hrs @ 105°C), providing enhanced reliability in elevated temperature environments compared to the original ECA-2DM4R7.

For Voltage Margin: 475CKS400MFH and UVC2G4R7MPD provide 400 V ratings, offering increased voltage margin over the original 200 V specification. These are suitable for applications requiring higher voltage stress tolerance.

For Direct Replacement: ECA-2EM4R7 maintains identical electrical and thermal characteristics to ECA-2DM4R7 while offering a 250 V voltage rating, providing a direct upgrade path within the same Panasonic M-A series.

Not For New Designs: UVR2D4R7MPD and UVR2E4R7MPD are classified as Not For New Designs and should be used only for legacy system maintenance or repair applications.

Frequently Asked Questions (FAQ)

Q: Can ECA-2EM4R7 be used as a direct replacement for ECA-2DM4R7?

A: Yes. ECA-2EM4R7 matches all primary parameters (4.7 µF, ±20%, radial can package, 0.138" lead spacing, 0.315" diameter, through-hole mounting) and operates within the same temperature range (-25°C ~ 85°C). The 250 V rating provides a voltage upgrade from the original 200 V specification.

Q: What is the difference between the 250 V and 400 V substitute options?

A: ECA-2EM4R7 and ECA-2EHG4R7 provide 250 V ratings, while 475CKS400MFH and UVC2G4R7MPD provide 400 V ratings. Higher voltage ratings offer increased stress margin in applications subject to voltage transients or overvoltage conditions. Selection depends on circuit voltage requirements and design margin specifications.

Q: Are there height restrictions when using substitute parts?

A: The original ECA-2DM4R7 has a maximum seated height of 0.492" (12.50mm). Substitute parts 475CKS400MFH, UVC2G4R7MPD, UVR2D4R7MPD, and UVR2E4R7MPD have a maximum seated height of 0.512" (13.00mm). This 0.020" (0.50mm) increase must be verified against PCB layout constraints and enclosure clearances before selection.

Q: Why are UVR2D4R7MPD and UVR2E4R7MPD marked as Not For New Designs?

A: These Nichicon UVR series parts are classified as Not For New Designs, indicating they are in end-of-life status. They are available for legacy system support and repair but should not be specified for new product development. Active alternatives such as ECA-2EM4R7 or UVC2G4R7MPD are recommended for new designs.

Q: What is the significance of the extended operating temperature range in ECA-2EHG4R7 and UVC2G4R7MPD?

A: ECA-2EHG4R7 and UVC2G4R7MPD support operating temperature ranges of -25°C ~ 105°C and -40°C ~ 105°C respectively, compared to the original -25°C ~ 85°C. Extended upper temperature limits enable operation in high-temperature environments. The extended lower temperature limit in UVC2G4R7MPD (-40°C) supports cold-temperature applications.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All identified substitute parts maintain ROHS3 Compliance, matching the original ECA-2DM4R7 specification.

Q: Can 475CKS400MFH from Cornell Dubilier be used interchangeably with Panasonic or Nichicon alternatives?

A: Yes, provided circuit voltage and thermal requirements are met. 475CKS400MFH matches all primary mechanical and electrical parameters (4.7 µF, ±20%, 400 V, radial can, 0.138" lead spacing, 0.315" diameter, through-hole mounting). The 0.020" height difference must be verified against PCB layout constraints.