Equivalent & Substitute Parts for UES1V4R7MDM

Part Overview

The UES1V4R7MDM is a 4.7 µF, 35 V aluminum electrolytic capacitor in radial, can package manufactured by Nichicon. This component is classified as obsolete, necessitating identification of equivalent and substitute parts for ongoing design support and procurement. The original part specification includes a 1000-hour lifetime rating at 85°C with bi-polar polarization suitable for audio applications.

Key Parameters

Parameter	Value
Capacitance	4.7 µF
Voltage Rating	35 V
Tolerance	±20%
Lifetime @ Temperature	1000 Hrs @ 85°C
Operating Temperature Range	-40°C ~ 85°C
Polarization	Bi-Polar
Lead Spacing	0.079" (2.00 mm)
Package / Case	Radial, Can
Mounting Type	Through Hole
Size / Dimension	0.197" Dia (5.00 mm)
Height - Seated (Max)	0.492" (12.50 mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the UES1V4R7MDM is determined by the following critical parameters:

Capacitance: Must be 4.7 µF (no tolerance variation)
Voltage Rating: Minimum 35 V (equal or higher voltage ratings are acceptable)
Tolerance: ±20% (matching tolerance specification)
Package / Case: Radial, Can format with identical lead spacing (0.079" / 2.00 mm) and physical dimensions (0.197" Dia / 5.00 mm, Height 0.492" / 12.50 mm)
Mounting Type: Through Hole
Polarization: Bi-Polar
Compliance: ROHS3 Compliant

Substitute parts are grouped into two categories based on thermal performance characteristics:

Category A - Enhanced Thermal Performance (1000 Hrs @ 105°C): UEP1H4R7MDD, UEP1V4R7MDD, 50NXA4.7MEFC5X11

Category B - Extended Lifetime at Operating Temperature (2000 Hrs @ 85°C): UVP1H4R7MDD, UVP1V4R7MDD, 50NA4.7MEFC5X11

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage Rating	Tolerance	Lifetime @ Temp.	Operating Temp. Range	Lead Spacing	Size / Dimension	Height (Max)	Product Status	RoHS Status
UES1V4R7MDM	Nichicon	4.7 µF	35 V	±20%	1000 Hrs @ 85°C	-40°C ~ 85°C	0.079" (2.00 mm)	0.197" Dia (5.00 mm)	0.492" (12.50 mm)	Obsolete	ROHS3 Compliant
UEP1H4R7MDD	Nichicon	4.7 µF	50 V	±20%	1000 Hrs @ 105°C	-55°C ~ 105°C	0.079" (2.00 mm)	0.197" Dia (5.00 mm)	0.492" (12.50 mm)	Obsolete	ROHS3 Compliant
UEP1V4R7MDD	Nichicon	4.7 µF	35 V	±20%	1000 Hrs @ 105°C	-55°C ~ 105°C	0.079" (2.00 mm)	0.197" Dia (5.00 mm)	0.492" (12.50 mm)	Obsolete	ROHS3 Compliant
UVP1H4R7MDD	Nichicon	4.7 µF	50 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.079" (2.00 mm)	0.197" Dia (5.00 mm)	0.492" (12.50 mm)	Obsolete	ROHS3 Compliant
UVP1V4R7MDD	Nichicon	4.7 µF	35 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.079" (2.00 mm)	0.197" Dia (5.00 mm)	0.492" (12.50 mm)	Obsolete	ROHS3 Compliant
50NA4.7MEFC5X11	Rubycon	4.7 µF	50 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	0.079" (2.00 mm)	0.197" Dia (5.00 mm)	0.492" (12.50 mm)	Obsolete	ROHS3 Compliant
50NXA4.7MEFC5X11	Rubycon	4.7 µF	50 V	±20%	1000 Hrs @ 105°C	-55°C ~ 105°C	0.079" (2.00 mm)	0.197" Dia (5.00 mm)	0.492" (12.50 mm)	Active	ROHS3 Compliant

Engineering Selection Recommendations

All substitute parts maintain identical physical dimensions, lead spacing, and mounting configuration, ensuring direct mechanical compatibility with the original UES1V4R7MDM footprint. Selection between substitute options depends on application thermal requirements and product lifecycle status:

For applications requiring extended component availability: 50NXA4.7MEFC5X11 (Rubycon) is the only active product status part in the substitute group, providing ongoing procurement access and supply chain continuity.

For applications operating at elevated ambient temperatures (above 85°C): UEP1H4R7MDD, UEP1V4R7MDD, and 50NXA4.7MEFC5X11 offer 1000-hour lifetime ratings at 105°C, extending operational reliability in thermally demanding environments.

For applications requiring maximum lifetime at standard operating temperatures (85°C): UVP1H4R7MDD, UVP1V4R7MDD, and 50NA4.7MEFC5X11 provide 2000-hour lifetime ratings at 85°C, doubling the endurance specification of the original part.

For voltage margin applications: UEP1H4R7MDD, UVP1H4R7MDD, 50NA4.7MEFC5X11, and 50NXA4.7MEFC5X11 offer 50 V ratings, providing 15 V additional voltage headroom compared to the original 35 V specification.

All substitute parts maintain ROHS3 compliance and bi-polar polarization matching the original specification.

Frequently Asked Questions (FAQ)

Q: Can UEP1V4R7MDD be used as a direct replacement for UES1V4R7MDM?

A: Yes. UEP1V4R7MDD maintains identical capacitance (4.7 µF), voltage rating (35 V), tolerance (±20%), and physical dimensions. The primary difference is enhanced thermal performance with 1000-hour lifetime at 105°C versus 85°C, and extended operating temperature range (-55°C to 105°C versus -40°C to 85°C).

Q: What is the advantage of selecting a 50 V rated part over the original 35 V specification?

A: Higher voltage-rated capacitors (50 V) provide additional safety margin in circuits with voltage transients or ripple. This does not affect circuit functionality at 35 V operation but extends component reliability under stress conditions.

Q: Why is 50NXA4.7MEFC5X11 recommended for new designs?

A: 50NXA4.7MEFC5X11 is the only substitute part with active product status, ensuring long-term availability and supply chain support. All other substitutes are classified as obsolete.

Q: Are all substitute parts mechanically interchangeable?

A: Yes. All substitute parts share identical lead spacing (0.079" / 2.00 mm), package diameter (0.197" / 5.00 mm), and height (0.492" / 12.50 mm), enabling direct PCB footprint compatibility without layout modifications.

Q: What is the difference between Category A and Category B substitutes?

A: Category A substitutes (UEP series and 50NXA) provide enhanced thermal performance with 1000-hour lifetime at 105°C and extended operating temperature range (-55°C to 105°C). Category B substitutes (UVP series and 50NA) provide extended lifetime (2000 hours) at the original operating temperature (85°C) with the original temperature range (-40°C to 85°C).

Q: Can bi-polar capacitors be used in polarized applications?

A: Bi-polar capacitors are designed for non-polarized applications. Verify circuit polarity requirements before substitution. If the original application requires polarized operation, bi-polar substitutes are not appropriate.

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