476RZM025M Equivalent & Substitute Parts Reference

Part Overview

The 476RZM025M is a 47 µF, 25 V aluminum electrolytic capacitor in radial, can package manufactured by Cornell Dubilier / Illinois Capacitor. This component is classified as Active status and is designed for general purpose applications. The part features a rated lifetime of 2000 hours at 105°C operating temperature, with an operating range of -55°C to 105°C.

Equivalent and substitute parts are necessary when the primary part becomes unavailable due to inventory constraints, supply chain disruptions, or when design requirements permit selection from alternative manufacturers while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value	Unit
Capacitance	47	µF
Voltage - Rated	25	V
Tolerance	±20%	-
Lifetime @ Temperature	2000 Hrs @ 105°C	-
Operating Temperature Range	-55°C ~ 105°C	-
Polarization	Polar	-
Lead Spacing	0.079" (2.00mm)	-
Size / Dimension	0.197" Dia (5.00mm)	-
Mounting Type	Through Hole	-
Package / Case	Radial, Can	-
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitution eligibility for the 476RZM025M is determined by strict adherence to the following parameters:

Critical Parameters (Must Match Exactly):

Capacitance: 47 µF
Voltage - Rated: 25 V (or higher)
Tolerance: ±20%
Polarization: Polar
Mounting Type: Through Hole
Package / Case: Radial, Can
Lead Spacing: 0.079" (2.00mm)
Size / Dimension: 0.197" Dia (5.00mm)
Operating Temperature Range: -55°C ~ 105°C
Lifetime @ Temperature: 2000 Hrs @ 105°C

Compliance Parameters:

RoHS Status: ROHS3 Compliant
REACH Status: REACH Unaffected
ECCN: EAR99

The substitute parts listed below meet all critical electrical and mechanical parameters. Variations in ESR, impedance, and ripple current ratings are noted where applicable, as these parameters differ between manufacturers but remain within acceptable operational ranges for general purpose applications.

Parameter Comparison

Parameter	476RZM025M (Cornell Dubilier)	ELXZ250ELL470MEB5D (Chemi-Con)	UKA1E470MDD (Nichicon)	UKA1V470MDD (Nichicon)	UPS1E470MDD (Nichicon)
Capacitance	47 µF	47 µF	47 µF	47 µF	47 µF
Voltage - Rated	25 V	25 V	25 V	35 V	25 V
Tolerance	±20%	±20%	±20%	±20%	±20%
Lifetime @ Temperature	2000 Hrs @ 105°C	2000 Hrs @ 105°C	2000 Hrs @ 105°C	2000 Hrs @ 105°C	2000 Hrs @ 105°C
Operating Temperature Range	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C
Polarization	Polar	Polar	Polar	Polar	Polar
Lead Spacing	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)
Size / Dimension	0.197" Dia (5.00mm)	0.197" Dia (5.00mm)	0.197" Dia (5.00mm)	0.197" Dia (5.00mm)	0.197" Dia (5.00mm)
Height - Seated (Max)	0.492" (12.50mm)	0.512" (13.00mm)	0.492" (12.50mm)	0.492" (12.50mm)	0.492" (12.50mm)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	Radial, Can	Radial, Can	Radial, Can	Radial, Can	Radial, Can
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Obsolete	Obsolete	Obsolete

Engineering Selection Recommendations

Primary Selection: 476RZM025M (Cornell Dubilier / Illinois Capacitor)

The 476RZM025M remains the preferred choice for new designs and applications where the primary part is available. This part carries Active product status, ensuring continued manufacturer support and long-term availability. It is ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.

First Alternative: ELXZ250ELL470MEB5D (Chemi-Con)

The ELXZ250ELL470MEB5D is the recommended direct substitute when 476RZM025M availability is constrained. This part maintains identical electrical specifications (47 µF, 25 V, ±20% tolerance, 2000 Hrs @ 105°C) and mechanical compatibility. The part carries Active product status and includes AEC-Q200 automotive qualification rating. The maximum seated height is 0.512" (13.00mm), which is 0.020" taller than the primary part; verify PCB clearance before substitution. ROHS3 compliance and REACH unaffected status are confirmed.

Secondary Alternatives: UKA1E470MDD and UPS1E470MDD (Nichicon)

Both UKA1E470MDD and UPS1E470MDD meet all critical electrical and mechanical parameters. However, both parts carry Obsolete product status, indicating discontinued manufacturer support and potential long-term supply constraints. These parts are suitable for replacement applications or when existing inventory is available. ROHS3 compliance and REACH unaffected status are confirmed for both parts.

Upgrade Option: UKA1V470MDD (Nichicon)

The UKA1V470MDD is a voltage-upgraded variant rated at 35 V (versus 25 V for the primary part). This part is electrically and mechanically compatible and may be substituted in applications where higher voltage margin is acceptable or beneficial. The part carries Obsolete product status. ROHS3 compliance is confirmed.

Frequently Asked Questions (FAQ)

Q: Can I substitute ELXZ250ELL470MEB5D for 476RZM025M directly on the PCB?

A: Yes, with one consideration. The ELXZ250ELL470MEB5D has a maximum seated height of 0.512" (13.00mm) compared to 0.492" (12.50mm) for the 476RZM025M. Verify that the additional 0.020" height does not interfere with PCB clearance, adjacent components, or enclosure constraints before installation.

Q: Why are UKA1E470MDD and UPS1E470MDD listed as Obsolete?

A: Obsolete product status indicates that the manufacturer has discontinued production and support for these parts. While they remain electrically and mechanically compatible, they should be considered only for replacement applications or when existing inventory is available. For new designs, select from Active status parts (476RZM025M or ELXZ250ELL470MEB5D).

Q: What is the difference between UKA1E470MDD and UKA1V470MDD?

A: Both parts are manufactured by Nichicon and share identical mechanical dimensions and lead spacing. The primary difference is voltage rating: UKA1E470MDD is rated at 25 V, while UKA1V470MDD is rated at 35 V. The 35 V variant provides higher voltage margin and may be substituted in applications where the circuit voltage permits.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All parts listed (476RZM025M, ELXZ250ELL470MEB5D, UKA1E470MDD, UKA1V470MDD, and UPS1E470MDD) are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: Can I use these parts interchangeably in audio applications?

A: The electrical specifications (47 µF, 25 V, ±20% tolerance, 2000 Hrs @ 105°C) are identical across all parts, making them functionally interchangeable in audio applications. However, ripple current ratings and ESR values vary between manufacturers. Verify that the specific ripple current and impedance characteristics of the selected substitute meet the application's requirements.

Q: What is the significance of the 0.079" (2.00mm) lead spacing?

A: Lead spacing defines the distance between the two radial leads on the capacitor. All listed parts maintain identical 0.079" (2.00mm) lead spacing, ensuring direct PCB footprint compatibility without requiring layout modifications.

Q: Are there any compliance certifications beyond RoHS3?

A: The ELXZ250ELL470MEB5D carries AEC-Q200 automotive qualification, indicating suitability for automotive applications. The primary part (476RZM025M) and other Nichicon variants do not list specific automotive certifications in the provided data.

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