ECA-2VM4R7 Equivalent & Substitute Parts

Part Overview

The Panasonic ECA-2VM4R7 is a 4.7 µF, 350 V aluminum electrolytic capacitor in radial, can package with a 2000-hour lifetime rating at 85°C. This component is classified as Active and suitable for general-purpose applications. Substitute parts are necessary when the original part becomes unavailable, when higher voltage ratings are required for circuit margin, or when extended temperature performance is needed for demanding environments.

Key Parameters

Parameter	Value
Capacitance	4.7 µF
Voltage Rating	350 V
Tolerance	±20%
Lifetime @ Temperature	2000 Hrs @ 85°C
Operating Temperature Range	-25°C ~ 85°C
Lead Spacing	0.197" (5.00 mm)
Case Diameter	0.394" (10.00 mm)
Height - Seated (Max)	0.531" (14.60 mm)
Mounting Type	Through Hole
Package / Case	Radial, Can
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the ECA-2VM4R7 are grouped based on the following criteria:

Primary Substitution Parameters:

Capacitance: 4.7 µF (exact match required)
Tolerance: ±20% (exact match required)
Lead Spacing: 0.197" (5.00 mm) (exact match required)
Case Diameter: 0.394" (10.00 mm) (exact match required)
Mounting Type: Through Hole (exact match required)
Package / Case: Radial, Can (exact match required)

Secondary Substitution Parameters (Allowable Variations):

Voltage Rating: 350 V or higher (upgrades to 450 V are acceptable)
Operating Temperature Range: -25°C ~ 85°C or extended ranges
Lifetime @ Temperature: 2000 Hrs @ 85°C or higher ratings
Height - Seated (Max): Up to 0.551" (14.00 mm) acceptable for through-hole applications

Substitute Parts Identified:

450PK4.7MEFC10X12.5 (Rubycon PK Series) – Voltage upgrade to 450 V, same lifetime and temperature range
450PX4.7MEFC10X12.5 (Rubycon PX Series) – Voltage upgrade to 450 V, extended temperature to 105°C, extended lifetime to 2000 Hrs @ 105°C
475CKE450MLN (Cornell Dubilier / Illinois Capacitor CKE Series) – Voltage upgrade to 450 V, extended temperature to 105°C, extended lifetime to 2000 Hrs @ 105°C
EKMQ451ELL4R7MJC5S (Chemi-Con KMQ Series) – Voltage upgrade to 450 V, extended temperature to 105°C, extended lifetime to 2000 Hrs @ 105°C
UVK2W4R7MPD (Nichicon UVK Series) – Voltage upgrade to 450 V, same lifetime and temperature range (Product Status: Not For New Designs)
UVR2V4R7MPD (Nichicon UVR Series) – Same voltage rating 350 V, extended temperature range to -40°C ~ 85°C (Product Status: Not For New Designs)

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage Rating	Tolerance	Lifetime @ Temp.	Operating Temp. Range	Lead Spacing	Case Diameter	Height (Max)	Product Status	RoHS Status
ECA-2VM4R7	Panasonic	4.7 µF	350 V	±20%	2000 Hrs @ 85°C	-25°C ~ 85°C	0.197" (5.00 mm)	0.394" (10.00 mm)	0.531" (14.60 mm)	Active	ROHS3 Compliant
450PK4.7MEFC10X12.5	Rubycon	4.7 µF	450 V	±20%	2000 Hrs @ 85°C	-25°C ~ 85°C	0.197" (5.00 mm)	0.394" (10.00 mm)	0.551" (14.00 mm)	Active	ROHS3 Compliant
450PX4.7MEFC10X12.5	Rubycon	4.7 µF	450 V	±20%	2000 Hrs @ 105°C	-25°C ~ 105°C	0.197" (5.00 mm)	0.394" (10.00 mm)	0.551" (14.00 mm)	Active	ROHS3 Compliant
475CKE450MLN	Cornell Dubilier / Illinois Capacitor	4.7 µF	450 V	±20%	2000 Hrs @ 105°C	-25°C ~ 105°C	0.197" (5.00 mm)	0.394" (10.00 mm)	0.551" (14.00 mm)	Active	ROHS3 Compliant
EKMQ451ELL4R7MJC5S	Chemi-Con	4.7 µF	450 V	±20%	2000 Hrs @ 105°C	-25°C ~ 105°C	0.197" (5.00 mm)	0.394" (10.00 mm)	0.551" (14.00 mm)	Active	ROHS3 Compliant
UVK2W4R7MPD	Nichicon	4.7 µF	450 V	±20%	2000 Hrs @ 85°C	-25°C ~ 85°C	0.197" (5.00 mm)	0.394" (10.00 mm)	0.551" (14.00 mm)	Not For New Designs	ROHS3 Compliant
UVR2V4R7MPD	Nichicon	4.7 µF	350 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.197" (5.00 mm)	0.394" (10.00 mm)	0.551" (14.00 mm)	Not For New Designs	ROHS3 Compliant

Engineering Selection Recommendations

For Active Product Status (Recommended for New Designs):

450PX4.7MEFC10X12.5 (Rubycon PX Series) or 475CKE450MLN (Cornell Dubilier CKE Series) or EKMQ451ELL4R7MJC5S (Chemi-Con KMQ Series) are preferred substitutes. All three offer voltage upgrade to 450 V, extended operating temperature to 105°C, and extended lifetime rating to 2000 Hrs @ 105°C. These parts are classified as Active and suitable for new designs.
450PK4.7MEFC10X12.5 (Rubycon PK Series) is an acceptable substitute with voltage upgrade to 450 V while maintaining the same temperature and lifetime specifications as the original part. This part is classified as Active.

For Obsolescence or Legacy Applications:

UVK2W4R7MPD (Nichicon UVK Series) and UVR2V4R7MPD (Nichicon UVR Series) are classified as "Not For New Designs" and should only be used for legacy system maintenance or repair of existing equipment.

Compliance Considerations:

All substitute parts listed are ROHS3 Compliant and REACH Unaffected, matching the regulatory status of the original ECA-2VM4R7.

Frequently Asked Questions (FAQ)

Q: Can I use a 450 V rated capacitor in place of a 350 V rated capacitor?

A: Yes. A higher voltage rating provides additional safety margin and is electrically compatible. The 450 V substitutes (450PK4.7MEFC10X12.5, 450PX4.7MEFC10X12.5, 475CKE450MLN, EKMQ451ELL4R7MJC5S, UVK2W4R7MPD) are direct functional replacements for the 350 V ECA-2VM4R7.

Q: What is the difference between the Rubycon PK and PX series substitutes?

A: Both maintain 4.7 µF capacitance and ±20% tolerance. The PK series (450PK4.7MEFC10X12.5) operates at -25°C ~ 85°C with 2000 Hrs @ 85°C lifetime. The PX series (450PX4.7MEFC10X12.5) extends the operating range to -25°C ~ 105°C with 2000 Hrs @ 105°C lifetime, making it suitable for higher-temperature applications.

Q: Are there physical size differences between the original part and substitutes?

A: The original ECA-2VM4R7 has a maximum seated height of 0.531" (14.60 mm). Most substitutes have a maximum seated height of 0.551" (14.00 mm). Both lead spacing (0.197" / 5.00 mm) and case diameter (0.394" / 10.00 mm) remain identical. Verify PCB layout clearance before substitution.

Q: Why are some substitutes marked "Not For New Designs"?

A: Parts marked "Not For New Designs" (UVK2W4R7MPD, UVR2V4R7MPD) are legacy products that manufacturers no longer recommend for new circuit designs. These parts are suitable only for repair and maintenance of existing equipment using the original part number.

Q: Are all substitutes ROHS3 compliant?

A: Yes. All substitute parts listed are ROHS3 Compliant and REACH Unaffected, matching the regulatory compliance of the original ECA-2VM4R7.

Q: Which substitute offers the best performance for high-temperature environments?

A: The 450PX4.7MEFC10X12.5 (Rubycon PX), 475CKE450MLN (Cornell Dubilier CKE), and EKMQ451ELL4R7MJC5S (Chemi-Con KMQ) all support extended operating temperatures to 105°C with 2000 Hrs @ 105°C lifetime rating, making them suitable for high-temperature applications.

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