Equivalent & Substitute Parts for 227RZM025M

Part Overview

The 227RZM025M is a 220 µF, 25 V aluminum electrolytic capacitor in radial, can package manufactured by Cornell Dubilier / Illinois Capacitor. This component is classified as obsolete, indicating that direct procurement from the original manufacturer is no longer available. Identifying equivalent and substitute parts is necessary to maintain design continuity and ensure uninterrupted supply for applications requiring this capacitor specification.

Key Parameters

Parameter	227RZM025M
Capacitance	220 µF
Voltage - Rated	25 V
Tolerance	±20%
Operating Temperature Range	-55°C ~ 105°C
Lifetime @ Temperature	3000 Hrs @ 105°C
Polarization	Polar
Mounting Type	Through Hole
Package / Case	Radial, Can
Lead Spacing	0.138" (3.50mm)
Size / Dimension	0.315" Dia (8.00mm)
Height - Seated (Max)	0.512" (13.00mm)

Substitute Part Grouping Explanation

Substitution of the 227RZM025M is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Criteria:

Capacitance: 220 µF (exact match required)
Voltage Rating: 25 V (exact match required)
Tolerance: ±20% (exact match required)
Operating Temperature Range: -55°C ~ 105°C (exact match required)
Polarization: Polar (exact match required)
Mounting Type: Through Hole (exact match required)
Package / Case: Radial, Can (exact match required)
Lead Spacing: 0.138" (3.50mm) (exact match required)
Size / Dimension: 0.315" Dia (8.00mm) (exact match required)

Allowable Variation Parameters:

ESR (Equivalent Series Resistance): Lower values are acceptable
Impedance: Lower values are acceptable
Lifetime @ Temperature: Equal or greater values are acceptable
Height - Seated (Max): Minor variations within mechanical tolerance are acceptable

All substitute parts listed meet or exceed the mandatory equivalence criteria and maintain compatibility with the original design specifications.

Parameter Comparison

Parameter	227RZM025M	227KXM025M	ELXZ250ELL221MH12D	MAL215056221E3	MAL215086221E3
Manufacturer	Cornell Dubilier / Illinois Capacitor	Cornell Dubilier / Illinois Capacitor	Chemi-Con	Vishay Beyschlag/Draloric/BC Components	Vishay Beyschlag/Draloric/BC Components
Series	RZM	KXM	LXZ	150 RMI	150 RMI
Product Status	Obsolete	Active	Active	Active	Active
Capacitance	220 µF	220 µF	220 µF	220 µF	220 µF
Voltage - Rated	25 V	25 V	25 V	25 V	25 V
Tolerance	±20%	±20%	±20%	±20%	±20%
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C
Lifetime @ Temp.	3000 Hrs @ 105°C	3000 Hrs @ 105°C	3000 Hrs @ 105°C	4000 Hrs @ 105°C	4000 Hrs @ 105°C
ESR @ 120Hz	1.206 Ohm	1.055 Ohm	Not Specified	Not Specified	Not Specified
Impedance	750 mOhms	220 mOhms	120 mOhms	117 mOhms	117 mOhms
Lead Spacing	0.138" (3.50mm)	0.138" (3.50mm)	0.138" (3.50mm)	0.138" (3.50mm)	0.138" (3.50mm)
Size / Dimension	0.315" Dia (8.00mm)	0.315" Dia (8.00mm)	0.315" Dia (8.00mm)	0.315" Dia (8.00mm)	0.315" Dia (8.00mm)
Height - Seated (Max)	0.512" (13.00mm)	0.512" (13.00mm)	0.531" (13.50mm)	0.512" (13.00mm)	0.512" (13.00mm)
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	Not Specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Ratings	Not Specified	Not Specified	AEC-Q200	AEC-Q200	AEC-Q200

Engineering Selection Recommendations

227KXM025M (Parametric Equivalent)

The 227KXM025M is an active product from Cornell Dubilier / Illinois Capacitor, the same manufacturer as the obsolete 227RZM025M. This part maintains identical electrical and mechanical specifications with the exception of improved ESR (1.055 Ohm versus 1.206 Ohm) and lower impedance (220 mOhms versus 750 mOhms). The 227KXM025M is suitable for direct substitution in general-purpose applications and offers superior electrical performance characteristics.

ELXZ250ELL221MH12D (Direct Manufacturer Alternative)

The ELXZ250ELL221MH12D is manufactured by Chemi-Con and meets all mandatory equivalence criteria. This part carries AEC-Q200 automotive qualification and ROHS3 compliance. The impedance is significantly lower at 120 mOhms. The height dimension is 0.531" (13.50mm), which is 0.019" greater than the original specification but remains within typical mechanical tolerance for radial can packages. This part is suitable for applications requiring automotive-grade reliability.

MAL215056221E3 and MAL215086221E3 (Upgrade Options)

Both MAL215056221E3 and MAL215086221E3 are manufactured by Vishay Beyschlag/Draloric/BC Components and provide extended lifetime performance at 4000 Hrs @ 105°C compared to the original 3000 Hrs @ 105°C. Both parts carry AEC-Q200 automotive qualification and ROHS3 compliance. Impedance is 117 mOhms, providing superior electrical performance. These parts are suitable for applications requiring extended operational life and automotive-grade reliability. The mechanical dimensions match the original specification exactly.

Frequently Asked Questions (FAQ)

Q: Can the 227KXM025M be used as a direct replacement for the 227RZM025M?

A: Yes. The 227KXM025M meets all mandatory equivalence criteria including capacitance, voltage rating, tolerance, operating temperature range, polarization, mounting type, package configuration, and lead spacing. The improved ESR and lower impedance represent enhanced electrical performance characteristics.

Q: What is the significance of the AEC-Q200 rating on the Chemi-Con and Vishay parts?

A: AEC-Q200 is an automotive qualification standard. Parts carrying this rating have undergone additional reliability testing and are suitable for automotive applications. The original 227RZM025M does not carry this designation.

Q: Why is the height of the ELXZ250ELL221MH12D slightly different?

A: The ELXZ250ELL221MH12D has a maximum seated height of 0.531" (13.50mm) compared to 0.512" (13.00mm) for the original part. This 0.019" difference is within typical mechanical tolerance for radial can capacitors and does not affect electrical performance or standard PCB mounting compatibility.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All active substitute parts listed (227KXM025M, ELXZ250ELL221MH12D, MAL215056221E3, and MAL215086221E3) are ROHS3 compliant. The original 227RZM025M does not specify ROHS status.

Q: What is the difference between the two Vishay parts, MAL215056221E3 and MAL215086221E3?

A: Both parts are electrically and mechanically identical. They share the same series designation (150 RMI), capacitance, voltage rating, tolerance, operating temperature range, lifetime rating, impedance, and physical dimensions. The difference in part number designation reflects internal Vishay manufacturing or packaging variations.

Q: Which substitute part offers the best electrical performance?

A: The MAL215056221E3 and MAL215086221E3 offer the lowest impedance at 117 mOhms. The ELXZ250ELL221MH12D provides impedance of 120 mOhms. The 227KXM025M provides impedance of 220 mOhms. Lower impedance values indicate superior high-frequency performance characteristics.

Q: Can these parts be used interchangeably in the same PCB design?

A: Yes. All substitute parts maintain identical lead spacing (0.138" / 3.50mm) and can diameter (0.315" / 8.00mm), ensuring compatibility with existing PCB footprints. The minor height variation of the ELXZ250ELL221MH12D does not affect standard through-hole mounting.

Q: What is the inventory status of these substitute parts?

A: The 227KXM025M has 5,672 units in stock. The ELXZ250ELL221MH12D has 13,002 units in stock. The MAL215056221E3 has 1,113 units in stock. The MAL215086221E3 has 703 units in stock. All substitute parts are available as new original stock.

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