Nichicon LLS2V331MELZ Equivalent & Substitute Parts

Part Overview

The Nichicon LLS2V331MELZ is a 330 µF, 350 V aluminum electrolytic capacitor in a radial, can snap-in package designed for general purpose applications. This component is currently active in production and widely used in power supply circuits, filtering applications, and energy storage systems requiring high voltage tolerance and extended operational life. Equivalent and substitute parts are identified when component availability is limited, supply chain disruptions occur, or design flexibility is required while maintaining electrical and mechanical compatibility.

Substiute Parts

LLS2V331MELZ

NichiconIn Stock: 1267LLS2V331MELZ Datasheet

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LLS2V331MELA

NichiconIn Stock: 744LLS2V331MELA Datasheet

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380LQ331M350J032

Cornell Dubilier Electronics (CDE)In Stock: 1439380LQ331M350J032 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Nichicon LLS2V331MELZ is determined by the following critical parameters:

• Capacitance Value: 330 µF (exact match required)
• Voltage Rating: 350 V (minimum; higher ratings acceptable)
• Tolerance: ±20% (as specified)
• Package Configuration: Radial, Can - Snap-In (mechanical compatibility)
• Lead Spacing: 0.394" (10.00 mm) (PCB footprint requirement)
• Mounting Type: Through Hole (assembly process compatibility)
• Polarization: Polar (circuit polarity requirement)
• Operating Temperature Range: -25°C to 85°C (minimum requirement)
• Compliance: ROHS3 Compliant (regulatory requirement)

Two substitute parts meet these criteria: Nichicon LLS2V331MELA and Cornell Dubilier Electronics 380LQ331M350J032. Both maintain identical electrical specifications and mechanical compatibility with the main part.

Parameter Comparison

Engineering Selection Recommendations

All three parts—Nichicon LLS2V331MELZ, Nichicon LLS2V331MELA, and Cornell Dubilier Electronics 380LQ331M350J032—are active production components with full ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for industrial and commercial applications.

The Nichicon LLS2V331MELZ and LLS2V331MELA are both Nichicon series components with identical electrical ratings and 3000-hour lifetime specifications at 85°C. The primary difference is physical dimension: LLS2V331MELA has a larger diameter (25.00 mm vs. 22.00 mm) and shorter height (37.00 mm vs. 47.00 mm). PCB layout space availability determines which Nichicon variant is appropriate.

The Cornell Dubilier Electronics 380LQ331M350J032 provides an alternative from a different manufacturer with equivalent electrical performance. This part has a 2000-hour lifetime at 85°C, which is lower than the Nichicon options. Physical dimensions match the LLS2V331MELA (25.00 mm diameter, 37.00 mm height). Selection of this part is appropriate when manufacturer diversity is required or when the reduced lifetime specification is acceptable for the application.

Frequently Asked Questions (FAQ)

Q: Can LLS2V331MELA be used as a direct replacement for LLS2V331MELZ?

A: Yes. Both parts are Nichicon LLS series components with identical electrical specifications: 330 µF, 350 V, ±20% tolerance, and 3000-hour lifetime at 85°C. The primary difference is physical size. LLS2V331MELA has a larger diameter (25.00 mm) and shorter height (37.00 mm) compared to LLS2V331MELZ (22.00 mm diameter, 47.00 mm height). Verify PCB layout space accommodates the larger diameter before substitution.

Q: Is the Cornell Dubilier 380LQ331M350J032 electrically equivalent?

A: Yes, electrically equivalent. The 380LQ331M350J032 maintains the same capacitance (330 µF), voltage rating (350 V), tolerance (±20%), and operating temperature range (-25°C to 85°C). The lifetime specification is 2000 hours at 85°C, compared to 3000 hours for Nichicon parts. This difference is relevant only for applications requiring extended operational life at elevated temperatures.

Q: Will physical dimension differences affect PCB assembly?

A: Yes. The LLS2V331MELZ has a smaller diameter (22.00 mm) and greater height (47.00 mm) than both substitute parts (25.00 mm diameter, 37.00 mm height). Verify that PCB layout, component spacing, and mechanical clearances accommodate the substitute part's dimensions before assembly. Lead spacing remains constant at 0.394" (10.00 mm) across all three parts.

Q: Are all three parts RoHS and REACH compliant?

A: Yes. All three parts—LLS2V331MELZ, LLS2V331MELA, and 380LQ331M350J032—are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for industrial and commercial electronics applications.

Q: What is the difference in ripple current ratings?

A: Ripple current specifications vary slightly across the three parts. LLS2V331MELZ: 1.87 A @ 120 Hz, 2.6741 A @ 50 kHz. LLS2V331MELA: 1.97 A @ 120 Hz, 2.8171 A @ 50 kHz. 380LQ331M350J032: 1.88 A @ 120 Hz, 2.63 A @ 20 kHz. These differences are within acceptable tolerance for general purpose applications. Verify ripple current requirements for high-frequency switching power supplies before selection.