SLPX221M350C3P3 Equivalent & Substitute Parts Reference

Part Overview

The SLPX221M350C3P3 is a 220 µF, 350 V aluminum electrolytic capacitor manufactured by Cornell Dubilier Electronics (CDE) in a radial, can snap-in package. This component is classified as Active product status and is designed for general-purpose applications requiring polarized capacitive energy storage in through-hole mounting configurations.

Equivalent and substitute parts are identified when alternative manufacturers offer capacitors with matching or superior electrical and mechanical specifications within the same package category. Substitution becomes necessary due to inventory availability, supply chain optimization, or design flexibility across multiple qualified component sources.

Key Parameters

Parameter	Value	Unit
Capacitance	220	µF
Voltage - Rated	350	V
Tolerance	±20%	-
ESR @ 120Hz	905	mOhm
Lifetime @ Temperature	3000 Hrs @ 85°C	-
Operating Temperature Range	-25°C to 85°C	-
Ripple Current @ 120 Hz	1.53	A
Ripple Current @ 20 kHz	2.25	A
Lead Spacing	10.00	mm
Diameter	25.00	mm
Height - Seated (Max)	32.00	mm
Package Type	Radial, Can - Snap-In	-
Mounting Type	Through Hole	-
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitute parts for the SLPX221M350C3P3 are classified into two functional groups based on voltage rating:

Group 1: Same Voltage Rating (350 V) Parts LGN2V221MELA30 and LQS2V221MELA30 maintain the 350 V rated voltage specification. These substitutes are electrically compatible in circuits designed for 350 V operation. Both parts share identical capacitance (220 µF), tolerance (±20%), lead spacing (10.00 mm), diameter (25.00 mm), and height (32.00 mm). Operating temperature range extends to 105°C, and lifetime rating is 3000 Hrs @ 105°C.

Group 2: Upgraded Voltage Rating (400 V) Parts 400MXK220MEFCSN25X30, 400USG220MEFCSN25X30, 400VXH220MEFCSN25X30, and EKMS401VSN221MQ30S operate at 400 V rated voltage. These components are suitable for applications where the circuit voltage does not exceed 350 V, as the higher voltage rating provides additional safety margin. All four parts maintain 220 µF capacitance and ±20% tolerance. Physical dimensions remain consistent: 10.00 mm lead spacing, 25.00 mm diameter, and 32.00 mm height (with minor tolerance variations in EKMS401VSN221MQ30S).

Critical Substitution Parameters:

Capacitance: 220 µF (fixed across all substitutes)
Tolerance: ±20% (fixed across all substitutes)
Package: Radial, Can - Snap-In (fixed across all substitutes)
Lead Spacing: 10.00 mm (fixed across all substitutes)
Mounting: Through Hole (fixed across all substitutes)
Polarization: Polar (fixed across all substitutes)

Parameter Comparison

Part Number	Manufacturer	Series	Capacitance (µF)	Voltage (V)	Tolerance	Lifetime @ Temp	Operating Temp (°C)	Ripple Current @ 120 Hz (A)	Diameter (mm)	Height (mm)	Inventory (Pcs)
SLPX221M350C3P3	Cornell Dubilier Electronics	SLPX	220	350	±20%	3000 Hrs @ 85°C	-25 to 85	1.53	25.00	32.00	995
LGN2V221MELA30	Nichicon	LGN	220	350	±20%	3000 Hrs @ 105°C	-25 to 105	1.00	25.00	32.00	5515
LQS2V221MELA30	Nichicon	LQS	220	350	±20%	3000 Hrs @ 105°C	-25 to 105	1.00	25.00	32.00	1212
400MXK220MEFCSN25X30	Rubycon	MXK	220	400	±20%	3000 Hrs @ 105°C	-25 to 105	1.32	25.00	32.00	1248
400USG220MEFCSN25X30	Rubycon	USG	220	400	±20%	3000 Hrs @ 85°C	-25 to 85	1.58	25.00	32.00	952
400VXH220MEFCSN25X30	Rubycon	VXH	220	400	±20%	5000 Hrs @ 105°C	-25 to 105	1.28	25.00	32.00	16377
EKMS401VSN221MQ30S	Chemi-Con	KMS	220	400	±20%	3000 Hrs @ 105°C	-25 to 105	1.13	25.40	32.50	865

Engineering Selection Recommendations

Same Voltage Rating Selection (350 V):

LGN2V221MELA30 and LQS2V221MELA30 are direct electrical equivalents to SLPX221M350C3P3 with identical voltage specifications. Both are manufactured by Nichicon and maintain ROHS3 compliance. LGN2V221MELA30 offers higher inventory availability (5515 pcs) compared to LQS2V221MELA30 (1212 pcs). Both parts extend operating temperature range to 105°C and provide 3000 Hrs lifetime at 105°C, compared to the original part's 3000 Hrs @ 85°C rating.

Upgraded Voltage Rating Selection (400 V):

Four substitute options operate at 400 V rated voltage and are suitable for circuits where the maximum operating voltage does not exceed 350 V. Selection among these four parts depends on specific application requirements:

400VXH220MEFCSN25X30 (Rubycon VXH series) provides the longest operational lifetime (5000 Hrs @ 105°C) and highest inventory availability (16377 pcs). This part is recommended for applications requiring extended service life and maximum supply chain flexibility.

400MXK220MEFCSN25X30 (Rubycon MXK series) offers 3000 Hrs @ 105°C lifetime with moderate inventory (1248 pcs) and is suitable for standard industrial applications.

400USG220MEFCSN25X30 (Rubycon USG series) maintains 3000 Hrs @ 85°C lifetime, matching the original part's temperature rating, with inventory of 952 pcs.

EKMS401VSN221MQ30S (Chemi-Con KMS series) provides 3000 Hrs @ 105°C lifetime with the smallest inventory (865 pcs). Physical dimensions show minor variations: 25.40 mm diameter and 32.50 mm height compared to standard 25.00 mm and 32.00 mm specifications.

All substitute parts maintain ROHS3 compliance and REACH unaffected status, consistent with the original component.

Frequently Asked Questions (FAQ)

Q1: Can I use a 400 V rated capacitor in place of a 350 V rated capacitor?

A: Yes. A capacitor with higher voltage rating can be used in circuits designed for lower voltage operation. The 400 V rated substitutes (400MXK220MEFCSN25X30, 400USG220MEFCSN25X30, 400VXH220MEFCSN25X30, EKMS401VSN221MQ30S) are electrically compatible with the 350 V SLPX221M350C3P3 when the circuit voltage does not exceed 350 V. The higher voltage rating provides additional safety margin.

Q2: What is the difference between LGN2V221MELA30 and LQS2V221MELA30?

A: Both parts are manufactured by Nichicon with identical electrical specifications: 220 µF, 350 V, ±20% tolerance, 3000 Hrs @ 105°C lifetime, and identical physical dimensions. The primary difference is inventory availability: LGN2V221MELA30 has 5515 pcs in stock, while LQS2V221MELA30 has 1212 pcs. Both are ROHS3 compliant direct equivalents.

Q3: Why does 400VXH220MEFCSN25X30 have a longer lifetime rating than other substitutes?

A: 400VXH220MEFCSN25X30 is rated for 5000 Hrs @ 105°C, compared to 3000 Hrs @ 105°C for most other substitutes. This extended lifetime is a design characteristic of the Rubycon VXH series and reflects the component's capability to operate longer under specified temperature conditions. This part is suitable for applications requiring extended service intervals.

Q4: Are all substitute parts physically interchangeable with SLPX221M350C3P3?

A: All substitute parts share the same lead spacing (10.00 mm), diameter (25.00 mm), and height (32.00 mm), with one exception. EKMS401VSN221MQ30S has slightly larger dimensions: 25.40 mm diameter and 32.50 mm height. This minor variation may affect fit in space-constrained applications. All parts use radial, can snap-in package with through-hole mounting.

Q5: Which substitute part offers the best inventory availability?

A: 400VXH220MEFCSN25X30 has the highest inventory with 16377 pcs in stock. This part also provides the longest operational lifetime (5000 Hrs @ 105°C) and extended operating temperature range (-25°C to 105°C), making it suitable for applications requiring both supply chain reliability and extended service life.

Q6: What compliance certifications do all substitute parts maintain?

A: All substitute parts are ROHS3 compliant and REACH unaffected, consistent with the original SLPX221M350C3P3. These certifications ensure compliance with environmental and hazardous substance regulations applicable to electronic components.

Q7: How do ripple current ratings affect part selection?

A: Ripple current ratings indicate the maximum AC current the capacitor can handle at specified frequencies. The original SLPX221M350C3P3 is rated for 1.53 A @ 120 Hz and 2.25 A @ 20 kHz. Substitute parts have varying ripple current ratings depending on series design. Selection should ensure the chosen substitute meets or exceeds the ripple current requirements of the target application.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message