LLS2E331MELZ Equivalent & Substitute Parts

Part Overview

The LLS2E331MELZ is a 330 µF, 250 V aluminum electrolytic capacitor in radial, can snap-in package manufactured by Nichicon. This component is rated for 3000 hours at 85°C and is designed for general-purpose applications requiring high-capacitance energy storage in through-hole configurations. The part is Active status and ROHS3 compliant.

Equivalent and substitute parts are necessary when the primary part is unavailable, when design requirements demand extended temperature performance, or when alternative manufacturers' components meet identical electrical and mechanical specifications within allowed tolerances.

Key Parameters

Parameter	Value
Capacitance	330 µF
Voltage Rating	250 V
Tolerance	±20%
Package Type	Radial, Can - Snap-In
Mounting Type	Through Hole
Lead Spacing	0.394" (10.00 mm)
Operating Temperature Range	-40°C to 85°C
Lifetime Rating	3000 Hrs @ 85°C
Polarization	Polar
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the LLS2E331MELZ is determined by strict equivalence in the following parameters:

Capacitance: 330 µF (exact match required)
Voltage Rating: 250 V (exact match required)
Tolerance: ±20% (exact match required)
Package Type: Radial, Can - Snap-In (exact match required)
Lead Spacing: 0.394" (10.00 mm) (exact match required)
Mounting Type: Through Hole (exact match required)
Polarization: Polar (exact match required)

Substitute parts are grouped into the following categories:

Upgrade Category: Parts with improved thermal performance (higher temperature rating or extended lifetime) while maintaining all core electrical parameters.

Similar Category: Parts from the same manufacturer series with identical electrical specifications but variations in physical dimensions (diameter and height) that remain compatible with standard through-hole PCB layouts.

Cross-Manufacturer Category: Parts from alternative manufacturers (Cornell Dubilier Electronics) that match all electrical and mechanical specifications, with documented ESR and ripple current ratings.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Voltage	Tolerance	Lifetime @ Temp.	Operating Temp. Range	Diameter (mm)	Height (mm)	Lead Spacing (mm)	Ripple Current @ 120 Hz	Ripple Current @ 50 kHz	RoHS Status
LLS2E331MELZ	Nichicon	330 µF	250 V	±20%	3000 Hrs @ 85°C	-40°C ~ 85°C	22.00	30.00	10.00	1.66 A	2.49 A	ROHS3
LGW2E331MELZ30	Nichicon	330 µF	250 V	±20%	3000 Hrs @ 105°C	-40°C ~ 105°C	22.00	30.00	10.00	1.8 A	2.7 A	ROHS3
LLS2E331MELA	Nichicon	330 µF	250 V	±20%	3000 Hrs @ 85°C	-40°C ~ 85°C	25.00	25.00	10.00	1.61 A	2.415 A	ROHS3
LLS2E331MELY	Nichicon	330 µF	250 V	±20%	3000 Hrs @ 85°C	-40°C ~ 85°C	20.00	35.00	10.00	1.68 A	2.52 A	ROHS3
380LQ331M250H022	Cornell Dubilier Electronics	330 µF	250 V	±20%	2000 Hrs @ 85°C	-40°C ~ 85°C	22.00	32.00	10.00	1.66 A	2.32 A	ROHS3
LPX331M250A5P3	Cornell Dubilier Electronics	330 µF	250 V	±20%	1000 Hrs @ 85°C	-40°C ~ 85°C	22.00	35.00	10.00	1.7 A	1.87 A	ROHS3
SLPX331M250C1P3	Cornell Dubilier Electronics	330 µF	250 V	±20%	3000 Hrs @ 85°C	-40°C ~ 85°C	25.00	25.00	10.00	1.61 A	2.37 A	ROHS3
SLPX331M250A3P3	Cornell Dubilier Electronics	330 µF	250 V	±20%	3000 Hrs @ 85°C	-40°C ~ 85°C	22.00	30.00	10.00	1.66 A	2.44 A	ROHS3

Engineering Selection Recommendations

LGW2E331MELZ30 (Nichicon Upgrade): Select this part when extended operating temperature performance is required. This part maintains identical physical dimensions and lead spacing as the primary part while extending the maximum operating temperature to 105°C and providing increased ripple current capacity. All compliance certifications match the primary part.

LLS2E331MELA and LLS2E331MELY (Nichicon Similar): These parts are direct electrical equivalents with identical lifetime ratings and operating temperature ranges. Physical dimensions differ (diameter and height variations), but lead spacing remains constant at 10.00 mm. Selection depends on available PCB space. Both maintain ROHS3 compliance.

SLPX331M250A3P3 (Cornell Dubilier Parametric Equivalent): This part matches the primary part in all critical electrical parameters and physical dimensions (22.00 mm diameter, 30.00 mm height, 10.00 mm lead spacing). It provides 3000-hour lifetime at 85°C with documented ESR and ripple current specifications. ROHS3 compliant.

SLPX331M250C1P3 (Cornell Dubilier Cross-Manufacturer): Provides 3000-hour lifetime rating with identical electrical specifications. Physical dimensions differ (25.00 mm diameter, 25.00 mm height), but lead spacing is maintained. ROHS3 compliant.

380LQ331M250H022 (Cornell Dubilier Alternative): Provides equivalent electrical performance with 2000-hour lifetime rating at 85°C. Physical dimensions vary slightly (22.00 mm diameter, 32.00 mm height). ROHS3 compliant. Select only when reduced lifetime is acceptable for the application.

LPX331M250A5P3 (Cornell Dubilier Limited Lifetime): Provides equivalent electrical specifications with reduced 1000-hour lifetime rating at 85°C. Physical dimensions differ (22.00 mm diameter, 35.00 mm height). ROHS3 compliant. Select only when application duration is limited or cost is the primary constraint.

Frequently Asked Questions (FAQ)

Q: Can I substitute LLS2E331MELZ with LGW2E331MELZ30?

A: Yes. LGW2E331MELZ30 is a direct upgrade with identical physical dimensions and lead spacing. It provides extended temperature operation to 105°C while maintaining all electrical specifications. No PCB layout changes are required.

Q: What is the difference between the Nichicon LLS series parts?

A: LLS2E331MELA, LLS2E331MELY, and LLS2E331MELZ are electrically identical 330 µF, 250 V capacitors with 3000-hour lifetime ratings at 85°C. They differ only in physical dimensions (diameter and height). All maintain the required 10.00 mm lead spacing for standard through-hole PCB compatibility.

Q: Can I use Cornell Dubilier parts as direct replacements?

A: Yes, provided the specific part meets your lifetime and ripple current requirements. SLPX331M250A3P3 and SLPX331M250C1P3 are direct electrical and mechanical equivalents. Other Cornell Dubilier options have reduced lifetime ratings (380LQ331M250H022 at 2000 hours, LPX331M250A5P3 at 1000 hours) and should be selected only when application requirements permit.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant and REACH unaffected, matching the compliance status of the primary part.

Q: What happens if I use a part with reduced lifetime rating?

A: Parts with reduced lifetime ratings (such as LPX331M250A5P3 at 1000 hours or 380LQ331M250H022 at 2000 hours) will reach end-of-life sooner than the primary part rated for 3000 hours. Select these only when application duration is known to be shorter than the rated lifetime.

Q: Do physical dimension differences affect PCB compatibility?

A: Lead spacing remains constant at 10.00 mm across all substitute parts, ensuring PCB hole compatibility. Diameter and height variations may affect available space on the board. Verify available clearance before selecting parts with different physical dimensions.

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