476KXM025M Equivalent & Substitute Parts

Part Overview

The Cornell Dubilier/Illinois Capacitor 476KXM025M is a 47 µF, 25 V aluminum electrolytic radial capacitor designed for general purpose applications. This component is currently active in production. Alternative models are necessary when the primary part becomes unavailable, when application requirements demand higher voltage ratings, or when automotive-grade compliance is required for specific end-use specifications.

Key Parameters

Parameter	476KXM025M
Capacitance	47 µF
Voltage Rating	25 V
Tolerance	±20%
ESR @ 120 Hz	4.9383 Ohm
Lifetime @ 105°C	2000 Hrs
Operating Temperature Range	-55°C ~ 105°C
Ripple Current @ 120 Hz	100 mA
Ripple Current @ 100 kHz	250 mA
Lead Spacing	0.079" (2.00 mm)
Case Diameter	0.197" (5.00 mm)
Height (Max)	0.492" (12.50 mm)
Mounting Type	Through Hole
Package	Radial, Can
RoHS Status	ROHS3 Compliant
Polarization	Polar

Substitute Part Grouping Explanation

Substitute parts are classified into three categories based on electrical and mechanical compatibility with the 476KXM025M:

Direct Equivalents: Parts with identical or functionally equivalent capacitance (47 µF), voltage rating (25 V), tolerance (±20%), lead spacing (0.079"), case diameter (0.197"), height (0.492"), and package type (Radial, Can). These parts are interchangeable without modification.

Upgrade Equivalents: Parts with identical capacitance and tolerance but higher voltage ratings (35 V vs. 25 V). These provide backward compatibility while offering enhanced voltage headroom. Physical dimensions and mounting characteristics remain identical.

Parametric Equivalents: Parts with matching capacitance, voltage, and tolerance but potentially different ripple current ratings, ESR specifications, or operating characteristics. These are substitutable where the application's electrical requirements are satisfied by the specified parameters.

Substitution validity is determined by:

Capacitance: 47 µF (exact match required)
Voltage Rating: ≥25 V (equal or higher acceptable)
Tolerance: ±20%
Case Diameter: 0.197" (5.00 mm)
Lead Spacing: 0.079" (2.00 mm)
Height: ≤0.512" (13.00 mm max)
Mounting: Through Hole, Radial orientation
Lifetime: 2000 Hrs @ 105°C

Parameter Comparison

Parameter	476KXM025M (Main)	ELXZ250ELL470MEB5D	UKA1E470MDD	UKA1V470MDD	UPS1E470MDD
Manufacturer	Cornell Dubilier/Illinois Capacitor	Chemi-Con	Nichicon	Nichicon	Nichicon
Series	KXM	LXZ	UKA	UKA	UPS
Capacitance	47 µF	47 µF	47 µF	47 µF	47 µF
Voltage Rating	25 V	25 V	25 V	35 V	25 V
Tolerance	±20%	±20%	±20%	±20%	±20%
Lifetime @ 105°C	2000 Hrs	2000 Hrs	2000 Hrs	2000 Hrs	2000 Hrs
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C
Case Diameter	0.197" (5.00 mm)	0.197" (5.00 mm)	0.197" (5.00 mm)	0.197" (5.00 mm)	0.197" (5.00 mm)
Lead Spacing	0.079" (2.00 mm)	0.079" (2.00 mm)	0.079" (2.00 mm)	0.079" (2.00 mm)	0.079" (2.00 mm)
Height (Max)	0.492" (12.50 mm)	0.512" (13.00 mm)	0.492" (12.50 mm)	0.492" (12.50 mm)	0.492" (12.50 mm)
Ripple Current @ 120 Hz	100 mA	70 mA	83 mA	93 mA	27.2 mA
Ripple Current @ 100 kHz	250 mA	175 mA	166 mA @ 10 kHz	186 mA @ 10 kHz	160 mA
Impedance	1 Ohm	500 mOhm	—	—	1.5 Ohm
Product Status	Active	Active	Obsolete	Obsolete	Obsolete
Applications	General Purpose	Automotive	Audio	Audio	General Purpose
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

ELXZ250ELL470MEB5D (Chemi-Con LXZ Series): This part is the preferred active production alternative. It maintains identical capacitance, voltage, and tolerance specifications with full mechanical compatibility. The part carries AEC-Q200 automotive qualification and ROHS3 compliance. Availability is high (3300 units in stock). The 0.512" height represents a marginal increase from the 0.492" specification but remains within acceptable PCB spacing tolerances. Lower ripple current ratings require verification against application-specific power dissipation limits.

UKA1V470MDD (Nichicon UKA Series, 35 V Upgrade): This obsolete part provides increased voltage rating (35 V) with identical physical dimensions and mounting characteristics. The higher voltage rating offers design margin and backward compatibility. Obsolete status limits availability (3704 units in stock); use only when existing inventory covers lifecycle requirements.

UKA1E470MDD (Nichicon UKA Series, 25 V): Direct equivalent with identical specifications. Obsolete status and audio application focus limit production availability. Inventory (6234 units) supports applications requiring continued supply from existing stock only.

UPS1E470MDD (Nichicon UPS Series): Parametric equivalent with matching core specifications. Significantly reduced ripple current capacity (27.2 mA @ 120 Hz) restricts use to applications with minimal AC current requirements. Obsolete status and limited inventory (1061 units) make this option suitable only for specific legacy designs.

Frequently Asked Questions (FAQ)

Q: Can I use the ELXZ250ELL470MEB5D as a direct drop-in replacement for the 476KXM025M?

A: Yes. The ELXZ250ELL470MEB5D maintains identical capacitance (47 µF), voltage rating (25 V), tolerance (±20%), and physical dimensions (5.00 mm diameter, 2.00 mm lead spacing, 12.50 mm height maximum). The 0.512" height of the ELXZ250ELL470MEB5D exceeds the 476KXM025M by 0.020" but remains compatible with standard PCB layout tolerances. Both parts feature radial through-hole mounting and ROHS3 compliance.

Q: What is the difference between a direct equivalent and an upgrade equivalent?

A: Direct equivalents match all electrical and mechanical parameters of the main part. Upgrade equivalents, such as the UKA1V470MDD, provide higher voltage ratings (35 V vs. 25 V) while maintaining identical capacitance and physical form factor. Upgrade parts offer enhanced voltage margin and backward compatibility but are suitable only when higher voltage tolerance is acceptable for the application.

Q: Are the Nichicon UKA series parts still available?

A: Both UKA1E470MDD and UKA1V470MDD are listed as obsolete. Although inventory is currently available (6234 and 3704 units respectively), these parts are no longer in active production. Use obsolete parts only when existing stock inventory supports the required product lifecycle without additional sourcing.

Q: Why does the UPS1E470MDD show lower ripple current ratings?

A: The UPS1E470MDD has significantly lower ripple current specifications (27.2 mA @ 120 Hz vs. 100 mA for the 476KXM025M). This reflects different internal construction and thermal characteristics within the same case size. This part is suitable only for applications with minimal AC ripple current demands; verification against specific application requirements is required before selection.

Q: What compliance certifications are critical for my application?

A: All listed parts carry ROHS3 compliance and REACH unaffected status. The ELXZ250ELL470MEB5D additionally carries AEC-Q200 automotive qualification, making it suitable for automotive-grade applications. For general purpose or audio applications, standard ROHS3 compliance is sufficient.

Q: Does height tolerance matter for PCB layout?

A: Case height tolerance affects PCB clearance and component density. The 476KXM025M and most substitutes specify 0.492" (12.50 mm) maximum height. The ELXZ250ELL470MEB5D specifies 0.512" (13.00 mm)—a 0.020" increase. Verify PCB layout clearance requirements before selection, particularly in applications with tight vertical spacing constraints.

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

A: Only the ELXZ250ELL470MEB5D carries AEC-Q200 automotive qualification. Use this part exclusively for automotive-grade applications. The remaining substitutes are qualified for general purpose or audio applications only and lack automotive-level qualification.

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