LGR2E331MELA35

The LGR2E331MELA35 is a Nichicon LGR series aluminum electrolytic capacitor in a snap-in radial can package. It delivers 330 µF nominal capacitance at a 250 V rating and is polarized for general-purpose electronic use.

Engineered for long-life operation, this part is specified for continuous use up to 105 °C with a guaranteed endurance of 10,000 hours at 105 °C. The component is RoHS compliant and intended for applications requiring high-voltage bulk capacitance with secure snap-in mounting.

Key Features

• Rated Capacitance & Voltage — 330 µF at 250 V nominal, providing bulk energy storage in a single, compact component.
• High-Temperature Long Life — Endurance specified for 10,000 hours at 105 °C, allowing deployment in elevated-temperature systems where long service life is required.
• Operating Temperature Range — Specified for –40 °C to +105 °C operation, supporting a wide thermal envelope for general-purpose equipment.
• Ripple Current Performance — Rated ripple current values include 1.2 A at 120 Hz and 1.8 A at 50 kHz; frequency coefficients for the 200/250 V curve (datasheet) show increased allowable ripple at higher frequencies (e.g., coefficient up to 1.50 at 50 kHz or more).
• Electrical Loss and Leakage — Maximum tangent of loss angle (tan δ) is 0.15 (measured at 120 Hz, 20 °C for 200–400 V range). Leakage current meets the datasheet formula I ≤ 3√CV (µA) after 5 minutes at rated voltage and 20 °C.
• Tolerance & Polarization — Capacitance tolerance is –20% to +20%; unit is polarized for correct circuit orientation.
• Mechanical Package — Radial, can-type snap-in package with secure snap-in mounting for PCB installation; nominal size 3.5 cm (L) × 2.5 cm (D).
• Regulatory — Compliant with RoHS directive.
• Endurance and Shelf Life Specifications — After endurance testing (10,000 h at 105 °C under DC bias plus rated ripple), capacitance change is within ±25% and leakage current remains within initial specification. Shelf-life recovery conditions are defined in the datasheet.

Typical Applications

• Power supply bulk filtering — Provides bulk capacitance and smoothing in general-purpose power supplies.
• Energy buffering in electronic equipment — Serves as energy storage and decoupling for industrial and commercial electronics where long life at elevated temperature is required.
• General-purpose high-voltage circuits — Suitable for polarized, high-voltage circuits that require robust ripple handling and long-term stability.

Unique Advantages

• Long-duration 105 °C rating — 10,000-hour endurance at 105 °C reduces the need for frequent replacements in higher-temperature installations.
• High-voltage bulk capacitance — 330 µF at 250 V supplies significant stored energy in a single component for simplified BOM and compact designs.
• Strong ripple capability across frequency — Rated ripple current and frequency coefficients allow predictable performance from mains-frequency to high-frequency switching environments.
• Predictable electrical limits — Clear tan δ and leakage current specifications (including the I ≤ 3√CV rule) support reliable design margins and verification.
• Robust snap-in mounting — Radial snap-in can simplifies PCB assembly and secures the capacitor mechanically for through-hole applications.
• RoHS compliant — Meets regulatory requirements for lead-free assemblies.

Why Choose LGR2E331MELA35?

The LGR2E331MELA35 combines high-voltage bulk capacitance with long-life assurance from Nichicon’s LGR series, making it a practical choice for general-purpose electronic equipment that requires durable energy storage and reliable ripple handling. Its electrical specifications and endurance data provide clear, verifiable limits for engineering design.

This part is well suited to designers and procurement teams seeking a polarized aluminum electrolytic capacitor that balances high-voltage capability, thermal endurance, and a secure snap-in package for through-hole assembly. The documented leakage, tan δ, and endurance criteria support predictable long-term performance in demanding environments.

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