SLP331M250C3P3 Equivalent & Substitute Parts

Part Overview

The SLP331M250C3P3 is a 330 µF, 250 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 reliable energy storage and filtering in power supply circuits. The part is ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

Substitute parts become necessary when the primary part number reaches end-of-life status, inventory constraints occur, or design flexibility is required across manufacturing locations. The substitute parts listed maintain electrical equivalence through identical capacitance, voltage rating, tolerance, and lifetime specifications while offering variations in physical dimensions and manufacturer options.

Key Parameters

Parameter	Value	Unit
Capacitance	330	µF
Voltage - Rated	250	V
Tolerance	±20%	-
ESR (Equivalent Series Resistance)	603	mOhm
Lifetime @ Temperature	3000	Hrs @ 105°C
Operating Temperature Range	-25°C to 105°C	-
Lead Spacing	0.394	inches (10.00 mm)
Package Type	Radial, Can - Snap-In	-
Mounting Type	Through Hole	-
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitution eligibility for the SLP331M250C3P3 is determined by strict electrical and mechanical parameter matching. All substitute parts must maintain the following core specifications:

Electrical Equivalence Requirements:

Capacitance: 330 µF (exact match)
Voltage Rating: 250 V (exact match)
Tolerance: ±20% (exact match)
Lifetime: 3000 Hrs @ 105°C (exact match)

Mechanical Compatibility Requirements:

Package Type: Radial, Can - Snap-In (exact match)
Mounting Type: Through Hole (exact match)
Lead Spacing: 0.394 inches / 10.00 mm (exact match)

Regulatory Compliance Requirements:

RoHS3 Compliant
REACH Unaffected

Physical dimensions (diameter and height) may vary within the snap-in package envelope, provided the lead spacing and mounting footprint remain constant. ESR values are provided where available but do not restrict substitution eligibility when not specified by the substitute manufacturer.

Parameter Comparison

Parameter	SLP331M250C3P3 (Main)	SLP331M250A3P3	SLP331M250A7P3	LGU2E331MELA
Manufacturer	Cornell Dubilier Electronics	Cornell Dubilier Electronics	Cornell Dubilier Electronics	Nichicon
Capacitance	330 µF	330 µF	330 µF	330 µF
Voltage - Rated	250 V	250 V	250 V	250 V
Tolerance	±20%	±20%	±20%	±20%
ESR	603 mOhm	603 mOhm	603 mOhm	Not Specified
Lifetime @ Temp.	3000 Hrs @ 105°C	3000 Hrs @ 105°C	3000 Hrs @ 105°C	3000 Hrs @ 105°C
Operating Temperature	-25°C to 105°C	-25°C to 105°C	-25°C to 105°C	-40°C to 105°C
Lead Spacing	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)	0.394" (10.00 mm)
Size / Dimension (Diameter)	0.984" (25.00 mm)	0.866" (22.00 mm)	0.866" (22.00 mm)	0.984" (25.00 mm)
Height - Seated (Max)	1.181" (30.00 mm)	1.181" (30.00 mm)	1.575" (40.00 mm)	1.181" (30.00 mm)
Package / Case	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In	Radial, Can - Snap-In
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

All listed substitute parts maintain full electrical equivalence to the SLP331M250C3P3 and are qualified for direct substitution based on the following criteria:

SLP331M250A3P3 (Cornell Dubilier Electronics): This substitute offers identical electrical specifications and operating temperature range. The reduced diameter (0.866 inches versus 0.984 inches) provides a more compact footprint while maintaining the same height and lead spacing. This part is suitable for applications where PCB space optimization is beneficial without compromising electrical performance.

SLP331M250A7P3 (Cornell Dubilier Electronics): This substitute maintains identical electrical specifications but features an increased height of 1.575 inches (40.00 mm) compared to the main part's 1.181 inches (30.00 mm). The reduced diameter (0.866 inches) provides a narrower profile. This configuration is applicable in designs where vertical clearance is available and horizontal space is constrained.

LGU2E331MELA (Nichicon): This substitute is manufactured by Nichicon and provides identical electrical specifications with an extended operating temperature range of -40°C to 105°C, compared to the main part's -25°C to 105°C. The physical dimensions match the main part exactly (0.984 inches diameter, 1.181 inches height). This part is suitable for applications requiring enhanced low-temperature performance.

All substitute parts carry Active product status, ROHS3 compliance, and REACH unaffected certification, ensuring regulatory alignment with the original component.

Frequently Asked Questions (FAQ)

Q: Can SLP331M250A3P3 be used as a direct replacement for SLP331M250C3P3?

A: Yes. Both parts share identical electrical specifications: 330 µF capacitance, 250 V rating, ±20% tolerance, 603 mOhm ESR, and 3000 Hrs @ 105°C lifetime. The lead spacing (0.394 inches) and mounting type (through-hole, snap-in) are identical. The primary difference is the reduced diameter (0.866 inches versus 0.984 inches), which does not affect electrical performance or PCB footprint compatibility.

Q: What is the difference between SLP331M250A7P3 and the main part SLP331M250C3P3?

A: The SLP331M250A7P3 maintains all electrical specifications but features a taller profile (1.575 inches versus 1.181 inches height) and a smaller diameter (0.866 inches versus 0.984 inches). This configuration is suitable for designs with vertical clearance availability and horizontal space constraints. Electrical performance remains identical.

Q: Is LGU2E331MELA compatible with the SLP331M250C3P3 in all applications?

A: LGU2E331MELA is electrically and mechanically compatible with the SLP331M250C3P3. The Nichicon part offers an extended operating temperature range (-40°C to 105°C versus -25°C to 105°C), making it suitable for applications requiring enhanced low-temperature performance. Physical dimensions are identical, ensuring direct PCB compatibility.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed—SLP331M250A3P3, SLP331M250A7P3, and LGU2E331MELA—are ROHS3 compliant and REACH unaffected, maintaining regulatory alignment with the original SLP331M250C3P3.

Q: Does the reduced diameter of SLP331M250A3P3 and SLP331M250A7P3 affect snap-in mounting?

A: No. Both parts maintain the identical lead spacing of 0.394 inches (10.00 mm) and snap-in package type. The reduced diameter does not compromise the snap-in mounting mechanism or PCB footprint compatibility.

Q: Which substitute part should be selected for low-temperature applications?

A: LGU2E331MELA is specified for operation down to -40°C, compared to -25°C for the main part and other CDE substitutes. This part is appropriate for applications requiring extended low-temperature performance.

Q: Can physical dimension variations affect circuit performance?

A: Physical dimension variations (diameter and height) do not affect electrical performance. All substitute parts maintain identical capacitance, voltage rating, tolerance, ESR, and lifetime specifications. Dimension differences are relevant only for PCB layout and mechanical clearance considerations.

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