UVR2E4R7MPD Equivalent & Substitute Parts

Part Overview

The Nichicon UVR2E4R7MPD is a 4.7 µF, 250 V aluminum electrolytic capacitor in radial, can package with a rated lifetime of 2000 hours at 85°C. This part carries a "Not For New Designs" status, indicating it has been superseded in Nichicon's product line. Finding equivalent or substitute components is necessary for ongoing maintenance, repair, and legacy system support where the original specification must be maintained or where performance can be enhanced through upgraded alternatives.

Key Parameters

Parameter	Value
Capacitance	4.7 µF
Voltage Rating	250 V
Tolerance	±20%
Lifetime @ Temperature	2000 Hrs @ 85°C
Operating Temperature Range	-40°C ~ 85°C
Lead Spacing	0.138" (4.60mm)
Case Diameter	0.315" Dia (8.00mm)
Height (Seated Max)	0.512" (13.00mm)
Mounting Type	Through Hole
Package / Case	Radial, Can

Substitute Part Grouping Explanation

Substitution of the UVR2E4R7MPD is determined by the following criteria:

Direct Mechanical Compatibility: Lead spacing (0.138" / 4.60mm), case diameter (0.315" / 8.00mm), and height (0.512" / 13.00mm) must match to ensure PCB footprint compatibility without layout modifications.

Electrical Compatibility: Capacitance (4.7 µF) and tolerance (±20%) must be identical. Voltage rating must be equal to or greater than 250 V. Operating temperature range must support the application's thermal requirements.

Allowed Substitution Parameters: Voltage rating may be upgraded (higher voltage rating in same package). Lifetime at temperature may be upgraded (longer operational life). Operating temperature range may be extended. Ripple current ratings may vary within the same package constraints.

Substitution Categories:

Upgrade Substitutes: Higher voltage rating (400 V) or extended temperature operation (105°C) in identical mechanical package
Similar Substitutes: Same electrical specifications but different mechanical dimensions or obsolete status
Parametric Equivalents: Identical electrical and mechanical specifications from alternative manufacturers

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ Temp	Operating Temp	Lead Spacing	Case Dia	Height	Status
UVR2E4R7MPD	Nichicon	4.7 µF	250 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.138" (4.60mm)	0.315" (8.00mm)	0.512" (13.00mm)	Not For New Designs
UVC2G4R7MPD	Nichicon	4.7 µF	400 V	±20%	2000 Hrs @ 105°C	-40°C ~ 105°C	0.138" (4.60mm)	0.315" (8.00mm)	0.512" (13.00mm)	Active
UVK2E4R7MED	Nichicon	4.7 µF	250 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.098" (2.50mm)	0.248" (6.30mm)	0.492" (12.50mm)	Obsolete
475KFM400MFH	Cornell Dubilier / Illinois Capacitor	4.7 µF	400 V	±20%	10000 Hrs @ 105°C	-40°C ~ 105°C	0.138" (4.60mm)	0.315" (8.00mm)	0.512" (13.00mm)	Active
ESMQ351ELL4R7MHB5D	Chemi-Con	4.7 µF	350 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.138" (4.60mm)	0.315" (8.00mm)	0.512" (13.00mm)	Active
ECA-2EM4R7	Panasonic Electronic Components	4.7 µF	250 V	±20%	2000 Hrs @ 85°C	-25°C ~ 85°C	0.138" (4.60mm)	0.315" (8.00mm)	0.492" (12.50mm)	Active
ESMG251ELL4R7MHB5D	Chemi-Con	4.7 µF	250 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.138" (4.60mm)	0.315" (8.00mm)	0.512" (13.00mm)	Active

Engineering Selection Recommendations

For Direct Replacement (Same Specifications): ESMG251ELL4R7MHB5D (Chemi-Con) provides identical electrical and mechanical specifications with Active product status. This part maintains 250 V rating, 4.7 µF capacitance, and identical physical dimensions, making it a direct PCB-compatible substitute.

For Performance Enhancement (Upgraded Voltage Rating): UVC2G4R7MPD (Nichicon) or 475KFM400MFH (Cornell Dubilier / Illinois Capacitor) both offer 400 V rating in the same mechanical package. UVC2G4R7MPD extends operating temperature to 105°C. The 475KFM400MFH provides extended lifetime (10000 Hrs @ 105°C) and is suitable for applications requiring higher reliability margins.

For Intermediate Voltage Upgrade: ESMQ351ELL4R7MHB5D (Chemi-Con) offers 350 V rating in identical mechanical package, providing voltage margin between the original 250 V and full 400 V upgrades.

Avoid: UVK2E4R7MED carries Obsolete status and features different mechanical dimensions (smaller case), requiring PCB layout modification. ECA-2EM4R7 has slightly reduced height (0.492" vs 0.512"), which may affect clearance in space-constrained applications.

Frequently Asked Questions (FAQ)

Q: Can I use a 400 V rated capacitor in place of the 250 V UVR2E4R7MPD? A: Yes. Higher voltage ratings are electrically compatible in applications designed for lower voltages. The 400 V alternatives (UVC2G4R7MPD, 475KFM400MFH, ESMQ351ELL4R7MHB5D at 350 V) fit the same PCB footprint and provide additional voltage margin.

Q: What is the difference between the Nichicon UVC2G4R7MPD and Cornell Dubilier 475KFM400MFH? A: Both are 4.7 µF, 400 V, radial can capacitors with identical mechanical dimensions. The 475KFM400MFH offers significantly extended lifetime (10000 Hrs @ 105°C vs 2000 Hrs @ 105°C), making it suitable for applications requiring higher reliability or longer service intervals.

Q: Why does the UVK2E4R7MED have different dimensions? A: The UVK2E4R7MED belongs to a different Nichicon series (UVK vs UVR) with a smaller case diameter (6.30mm vs 8.00mm) and different lead spacing (2.50mm vs 4.60mm). This part requires PCB layout modification and is not a direct substitute.

Q: Is ESMG251ELL4R7MHB5D a true equivalent to UVR2E4R7MPD? A: Yes. ESMG251ELL4R7MHB5D matches all electrical specifications (4.7 µF, 250 V, ±20%, 2000 Hrs @ 85°C) and mechanical dimensions (lead spacing, case diameter, height). It is manufactured by Chemi-Con and carries Active product status.

Q: Can I use ECA-2EM4R7 as a substitute? A: ECA-2EM4R7 is electrically compatible (4.7 µF, 250 V, ±20%) and has matching lead spacing and case diameter. However, its seated height is 0.492" versus the original 0.512", which may affect clearance in applications with tight vertical constraints. Verify clearance before substitution.

Q: What does "Not For New Designs" status mean for the UVR2E4R7MPD? A: This designation indicates Nichicon has superseded this part in their product line. While existing inventory may be available, the manufacturer recommends using active alternatives for new designs. For legacy system support and repairs, equivalent parts from the substitute list are appropriate.

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