SLPX331M200A3P3 Equivalent & Substitute Parts

Part Overview

The SLPX331M200A3P3 is a 330 µF, 200 V aluminum electrolytic capacitor manufactured by Cornell Dubilier Electronics (CDE) in a radial, can snap-in package. This component is classified as obsolete but remains in stock with 1,129 units available. The part is designed for general-purpose applications requiring stable capacitance and extended operational life at elevated temperatures.

Due to its obsolete status, identifying equivalent and substitute parts is essential for design continuity, procurement planning, and system reliability. Active alternatives from both CDE and other manufacturers provide comparable electrical performance with improved availability and product support.

Key Parameters

Parameter	Value	Unit
Capacitance	330	µF
Tolerance	±20%	-
Voltage - Rated	200	V
ESR @ 120 Hz	603	mOhm
Lifetime @ 85°C	3000	Hrs
Operating Temperature Range	-40°C ~ 85°C	-
Lead Spacing	10.00	mm
Diameter	22.00	mm
Height (Seated Max)	30.00	mm
Mounting Type	Through Hole	-
Package / Case	Radial, Can - Snap-In	-
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitution of aluminum electrolytic capacitors is determined by strict alignment of the following parameters:

Primary Substitution Criteria:

Capacitance value (330 µF)
Voltage rating (200 V minimum for direct substitution; higher ratings acceptable as upgrades)
Tolerance (±20%)
Package type (Radial, Can - Snap-In)
Lead spacing (10.00 mm)
Mounting type (Through Hole)
Polarization (Polar)

Secondary Compatibility Factors:

Physical dimensions (diameter and height must fit PCB layout constraints)
ESR characteristics (affects ripple current handling and thermal performance)
Lifetime rating at operating temperature (3000 Hrs @ 85°C or better)
Operating temperature range (-40°C ~ 85°C or extended)
RoHS and REACH compliance

Substitute parts are categorized as follows:

Direct Substitutes: Parts with identical or equivalent electrical specifications and physical dimensions, differing only in series designation or minor manufacturing variations.

Upgrade Substitutes: Parts with higher voltage ratings (220 V, 250 V) or improved temperature performance (105°C lifetime rating), maintaining all other critical parameters. These provide enhanced reliability margins.

Similar Substitutes: Parts with the same capacitance and voltage but different physical dimensions, ESR characteristics, or ripple current ratings. These require PCB layout verification before implementation.

Parameter Comparison

Part Number	Manufacturer	Capacitance (µF)	Voltage (V)	ESR @ 120Hz (mOhm)	Lifetime @ Temp	Diameter (mm)	Height (mm)	Status
SLPX331M200A3P3	CDE	330	200	603	3000 Hrs @ 85°C	22.00	30.00	Obsolete
380LX331M200H022	CDE	330	200	600	3000 Hrs @ 85°C	22.00	32.00	Active
SLPX331M200A1P3	CDE	330	200	603	3000 Hrs @ 85°C	22.00	25.00	Active
SLPX331M220A3P3	CDE	330	220	603	3000 Hrs @ 85°C	22.00	30.00	Active
SLPX331M250A3P3	CDE	330	250	603	3000 Hrs @ 85°C	22.00	30.00	Active
380LX331M200J012	CDE	330	200	470	3000 Hrs @ 85°C	25.00	27.00	Active
380LX331M200K202	CDE	330	200	603	3000 Hrs @ 85°C	30.00	22.00	Active
SLP331M200A3P3	CDE	330	200	603	3000 Hrs @ 105°C	22.00	30.00	Active
LGU2D331MELZ	Nichicon	330	200	-	3000 Hrs @ 105°C	22.00	30.00	Active
LGW2E331MELZ30	Nichicon	330	250	-	3000 Hrs @ 105°C	22.00	30.00	Active
LLS2E331MELZ	Nichicon	330	250	-	3000 Hrs @ 85°C	22.00	30.00	Active

Engineering Selection Recommendations

Direct Replacement (Same Electrical & Physical Specifications):

SLPX331M200A1P3 is the primary direct substitute. This active CDE part maintains identical capacitance, voltage, ESR, and lifetime specifications. The height difference (25.00 mm vs. 30.00 mm) represents a space optimization and does not affect electrical compatibility. This part is preferred for immediate replacement due to active product status and higher inventory availability (3,431 units).

Voltage Upgrade Substitutes (Enhanced Reliability Margin):

SLPX331M220A3P3 and SLPX331M250A3P3 provide higher voltage ratings (220 V and 250 V respectively) while maintaining identical physical dimensions and electrical characteristics. These upgrades are suitable for applications where circuit voltage may fluctuate or where design margin improvement is required. Both parts are active with adequate inventory.

Cross-Manufacturer Alternatives (Nichicon):

LGU2D331MELZ (Nichicon, 200 V) and LGW2E331MELZ30 (Nichicon, 250 V) are active alternatives with extended temperature performance (3000 Hrs @ 105°C). These parts maintain identical physical dimensions and capacitance specifications. Nichicon parts are ROHS3 compliant and REACH unaffected, matching CDE compliance status. Selection of Nichicon alternatives requires verification of ESR specifications in application-specific ripple current calculations, as ESR data is not provided in the specification sheet.

Similar Substitutes (Dimensional Variations):

380LX331M200J012 features reduced ESR (470 mOhm vs. 603 mOhm), improving ripple current handling capability. However, physical dimensions differ (25.00 mm diameter, 27.00 mm height), requiring PCB layout verification before implementation.

380LX331M200K202 presents inverted dimensions (30.00 mm diameter, 22.00 mm height) compared to the original part. This configuration may not fit existing PCB footprints and requires mechanical clearance verification.

Product Status Consideration:

All recommended substitutes carry active product status, ensuring continued availability and manufacturer support. The original SLPX331M200A3P3 is obsolete; transition to an active equivalent is recommended for new designs and long-term procurement planning.

Frequently Asked Questions (FAQ)

Q: Can SLPX331M200A1P3 replace SLPX331M200A3P3 directly on the PCB?

A: Yes. Both parts share identical electrical specifications (330 µF, 200 V, 603 mOhm ESR, 3000 Hrs @ 85°C) and lead spacing (10.00 mm). The height difference (25.00 mm vs. 30.00 mm) is a space optimization that does not affect electrical function. Verify that the reduced height does not create mechanical clearance issues with adjacent components or enclosure constraints.

Q: What is the advantage of using SLPX331M220A3P3 or SLPX331M250A3P3 instead of the original 200 V part?

A: Higher voltage ratings provide increased design margin and improved reliability in applications subject to voltage transients or supply fluctuations. These upgrades maintain identical physical dimensions and capacitance, making them direct mechanical replacements. The higher voltage rating does not degrade performance in 200 V applications.

Q: Why are ESR values not specified for Nichicon parts LGU2D331MELZ and LGW2E331MELZ30?

A: ESR specifications are not provided in the available technical documentation for these Nichicon parts. Before selecting these alternatives for applications with strict ripple current requirements, obtain detailed ESR data from the manufacturer to ensure compatibility with circuit design specifications.

Q: Can 380LX331M200J012 be used as a substitute despite its different physical dimensions?

A: 380LX331M200J012 is electrically compatible (330 µF, 200 V, 3000 Hrs @ 85°C) and offers superior ESR performance (470 mOhm vs. 603 mOhm). However, its larger diameter (25.00 mm vs. 22.00 mm) and different height (27.00 mm vs. 30.00 mm) require PCB layout verification. Use this part only if mechanical clearance is confirmed.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 Compliant status and are REACH Unaffected, matching the compliance profile of the original SLPX331M200A3P3.

Q: What is the difference between CDE and Nichicon alternatives?

A: Both manufacturers provide ROHS3-compliant, REACH-unaffected parts with identical physical dimensions and capacitance values. Nichicon alternatives (LGU2D331MELZ, LGW2E331MELZ30, LLS2E331MELZ) offer extended temperature performance (3000 Hrs @ 105°C vs. 85°C), providing improved thermal margin. CDE alternatives maintain the original thermal specification or offer voltage upgrades. Selection depends on application temperature requirements and supply chain preferences.

Q: Is the original SLPX331M200A3P3 still available for procurement?

A: The part is classified as obsolete but remains in stock with 1,129 units available. For new designs and long-term production planning, transition to an active equivalent such as SLPX331M200A1P3 is recommended to ensure continued availability and manufacturer support beyond current inventory depletion.

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