Equivalent & Substitute Parts for 225KXM100M

Part Overview

The 225KXM100M is a 2.2 µF, 100 V aluminum electrolytic capacitor manufactured by Cornell Dubilier / Illinois Capacitor in the KXM series. This radial, through-hole component is designed for general-purpose applications with a rated lifetime of 2000 hours at 105°C and an operating temperature range of -55°C to 105°C. The part maintains active product status with 1168 units currently in stock.

Substitute parts become necessary when the original KXM series component reaches end-of-life status, inventory depletion, or when design requirements necessitate alternative manufacturers while maintaining equivalent electrical and mechanical performance.

Key Parameters

Parameter	Value	Unit	Substitution Relevance
Capacitance	2.2	µF	Critical - must match exactly
Voltage Rating	100	V	Critical - must match or exceed
Tolerance	±20%	%	Critical - must match
Lifetime @ Temperature	2000	Hrs @ 105°C	Critical - must match or exceed
Operating Temperature Range	-55°C to 105°C	°C	Critical - must match or exceed
Lead Spacing	0.079"	(2.00 mm)	Critical - PCB layout compatibility
Diameter	0.197"	(5.00 mm)	Important - mechanical fit
Height (Seated Max)	0.492"	(12.50 mm)	Important - clearance verification
Mounting Type	Through Hole	-	Critical - assembly compatibility
Package Type	Radial, Can	-	Critical - form factor
Polarization	Polar	-	Critical - polarity marking required
RoHS Status	ROHS3 Compliant	-	Regulatory compliance

Substitute Part Grouping Explanation

Substitution eligibility for the 225KXM100M is determined by strict equivalence across the following parameters:

Electrical Parameters (Non-Negotiable):

Capacitance: 2.2 µF (exact match required)
Voltage Rating: 100 V (minimum requirement)
Tolerance: ±20% (must match)
Lifetime: 2000 Hrs @ 105°C (minimum requirement)
Operating Temperature: -55°C to 105°C (minimum requirement)
Polarization: Polar (must match)

Mechanical Parameters (Non-Negotiable):

Lead Spacing: 0.079" (2.00 mm) - PCB hole pattern compatibility
Diameter: 0.197" (5.00 mm) - component footprint
Mounting Type: Through Hole - assembly process compatibility
Package Type: Radial, Can - form factor

Compliance Parameters:

RoHS3 Compliant status required for regulatory alignment

The two substitute parts identified (UPJ2A2R2MDD and UPM2A2R2MDD) satisfy all critical electrical and mechanical parameters. Both are manufactured by Nichicon and maintain identical capacitance, voltage rating, tolerance, lifetime rating, operating temperature range, lead spacing, diameter, and mounting type as the original 225KXM100M.

Parameter Comparison

Parameter	225KXM100M (Cornell Dubilier)	UPJ2A2R2MDD (Nichicon)	UPM2A2R2MDD (Nichicon)
Capacitance	2.2 µF	2.2 µF	2.2 µF
Voltage Rating	100 V	100 V	100 V
Tolerance	±20%	±20%	±20%
Lifetime @ 105°C	2000 Hrs	2000 Hrs	2000 Hrs
Operating Temperature	-55°C to 105°C	-55°C to 105°C	-55°C to 105°C
Lead Spacing	0.079" (2.00 mm)	0.079" (2.00 mm)	0.079" (2.00 mm)
Diameter	0.197" (5.00 mm)	0.197" (5.00 mm)	0.197" (5.00 mm)
Height (Seated Max)	0.492" (12.50 mm)	0.472" (12.00 mm)	0.492" (12.50 mm)
Mounting Type	Through Hole	Through Hole	Through Hole
Package Type	Radial, Can	Radial, Can	Radial, Can
Polarization	Polar	Polar	Polar
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Obsolete	Obsolete
Series	KXM	UPJ	UPM
Ratings	-	-	AEC-Q200

Engineering Selection Recommendations

Primary Selection: 225KXM100M (Cornell Dubilier KXM Series)

The original 225KXM100M maintains active product status with current inventory availability (1168 units in stock). This part is the preferred choice for new designs and production runs where supply continuity is required.

Secondary Selection: UPM2A2R2MDD (Nichicon UPM Series)

The UPM2A2R2MDD is the recommended substitute when 225KXM100M availability is constrained. This part carries AEC-Q200 automotive qualification, providing additional reliability assurance for applications requiring automotive-grade components. The UPM series demonstrates higher inventory availability (6576 units in stock) and maintains identical electrical and mechanical specifications to the original part, including maximum seated height of 0.492" (12.50 mm).

Tertiary Selection: UPJ2A2R2MDD (Nichicon UPJ Series)

The UPJ2A2R2MDD serves as an alternative substitute with the highest inventory availability (3476 units in stock). This part meets all critical electrical and mechanical requirements. The seated height is 0.472" (12.00 mm), which is 0.020" lower than the original specification. This dimensional difference requires clearance verification in applications with height-constrained PCB layouts before implementation.

Compliance Alignment:

All three parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment with current environmental standards.

Frequently Asked Questions (FAQ)

Q: Can UPJ2A2R2MDD be used as a direct replacement for 225KXM100M?

A: UPJ2A2R2MDD meets all critical electrical parameters (capacitance, voltage, tolerance, lifetime, temperature range) and mechanical parameters (lead spacing, diameter, mounting type, package type). The seated height of 0.472" (12.00 mm) is 0.020" lower than the original 0.492" (12.50 mm). Direct substitution is permissible provided the reduced height does not conflict with PCB clearance requirements or component placement constraints.

Q: What is the difference between UPJ2A2R2MDD and UPM2A2R2MDD?

A: Both parts are manufactured by Nichicon and share identical electrical specifications (2.2 µF, 100 V, ±20%, 2000 Hrs @ 105°C). The primary differences are: (1) UPM2A2R2MDD carries AEC-Q200 automotive qualification; (2) UPM2A2R2MDD seated height matches the original specification at 0.492" (12.50 mm), while UPJ2A2R2MDD is 0.020" shorter at 0.472" (12.00 mm); (3) UPM2A2R2MDD is designated for automotive applications, while UPJ2A2R2MDD is general-purpose.

Q: Are there any performance differences in ESR or impedance between these parts?

A: The original 225KXM100M specifies ESR of 75.3575 Ohm @ 120 Hz and impedance of 18.36 Ohms. The substitute parts (UPJ2A2R2MDD and UPM2A2R2MDD) do not provide ESR specifications in the available data. Both substitutes specify impedance of 6.6 Ohms, which is lower than the original. Applications sensitive to ESR or impedance characteristics require direct electrical testing or manufacturer consultation before implementation.

Q: What is the significance of product status (Active vs. Obsolete)?

A: The 225KXM100M maintains active status, indicating ongoing manufacturing and supply availability. UPJ2A2R2MDD and UPM2A2R2MDD are obsolete, meaning production has ceased. Obsolete parts carry supply risk and may experience price volatility or availability constraints. Substitution to obsolete parts is appropriate only when the original part becomes unavailable or when design requirements specifically necessitate the substitute's characteristics (such as AEC-Q200 qualification for UPM2A2R2MDD).

Q: Can these parts be used interchangeably in automotive applications?

A: UPM2A2R2MDD carries AEC-Q200 automotive qualification and is suitable for automotive applications. The 225KXM100M and UPJ2A2R2MDD do not carry automotive ratings. Use of non-automotive-rated parts in automotive applications requires design review and customer approval.

Q: What should be verified before implementing a substitute part?

A: Before substitution, verify: (1) PCB hole pattern compatibility with 0.079" (2.00 mm) lead spacing; (2) component clearance with seated height (0.472" for UPJ2A2R2MDD or 0.492" for UPM2A2R2MDD); (3) polarity marking alignment on PCB silkscreen; (4) ripple current requirements against specified values; (5) regulatory compliance requirements for the application; (6) ESR or impedance sensitivity if the application is frequency-dependent.

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