LQS2V331MELA40

The LQS2V331MELA40 is a snap‑in terminal aluminum electrolytic capacitor from Nichicon's LQS series designed for high‑speed charge‑discharge applications. It provides 330 µF nominal capacitance at a 350 V rating with a polarized radial can snap‑in package.

Engineered for power electronics, the part is suited for high‑frequency regenerative circuits such as AC servomotor drives and general inverters, equipment operating in fluctuating voltage environments, and rectifier circuits using voltage doublers. The device is RoHS compliant and rated for –25°C to 105°C operation.

Key Features

• Capacitance & Voltage — 330 µF nominal capacitance with a 350 V rated voltage and ±20% tolerance at 120 Hz, 20°C.
• High‑speed charge‑discharge — Designed for rapid charge/discharge duty; series endurance testing includes 50 million charge‑discharge cycles (6 Hz) with capacitance change within ±20%.
• High temperature endurance — Rated for operation from –25°C to 105°C with a specified endurance of 3000 hours at 105°C under D.C. bias plus rated ripple current.
• Ripple current performance — Specified ripple current of 1.2 A at 120 Hz and 1.716 A at 50 kHz to support high‑frequency power circuits.
• Leakage and dissipation characteristics — Leakage current specified as I ≤ 3√(C·V) µA after 5 minutes at 20°C; tan δ maximum 0.15 at 350 V (measurement at 120 Hz, 20°C).
• Package & mounting — Radial can, snap‑in terminal type for secure mounting in power assemblies commonly used in inverters and motor drives.
• Polarized design — Aluminum electrolytic construction with specified polarity; intended for DC and charge/discharge applications where polarized capacitors are required.

Typical Applications

• AC servomotor regenerative circuits — Handles high‑frequency regenerative voltages and rapid charge/discharge cycles in servo drive energy‑recovery paths.
• General inverters — Provides bulk energy storage and ripple handling in inverter DC bus and filter circuits for motor drives and power converters.
• Voltage‑doubler rectifier circuits — Suited for rectifier and voltage‑doubler topologies requiring high‑voltage polarized capacitors.
• Equipment in fluctuating voltage environments — Designed for systems exposed to frequent voltage swings where robust charge/discharge endurance and thermal stability are required.

Unique Advantages

• High‑voltage capability: 350 V rating provides headroom for DC bus and high‑voltage power circuits.
• Engineered for charge/discharge duty: Series‑level endurance tests (50 million cycles) and specified limits on capacitance, tan δ, and leakage after cycling support long‑term dynamic performance.
• Wide operating temperature range: –25°C to 105°C rating and 3000‑hour endurance at 105°C help maintain performance in thermally demanding installations.
• Measured high‑frequency ripple support: Ripple current specifications at 120 Hz and 50 kHz enable effective filtering and energy buffering in both line‑frequency and high‑frequency circuits.
• Snap‑in radial package: Robust snap‑in mounting simplifies assembly in power supply and inverter modules that require secure board attachment.
• RoHS compliance: Conforms to RoHS directive (2011/65/EU, (EU)2015/863), supporting regulatory requirements for restricted substances.

Why Choose LQS2V331MELA40?

The LQS2V331MELA40 combines high voltage rating, substantial capacitance, and a snap‑in radial package to address the needs of power electronics designers working on inverters, servo drives, and rectifier circuits. Its high‑speed charge/discharge design and measured ripple current capability make it suitable where dynamic energy handling and thermal endurance are critical.

As part of Nichicon's LQS series, this capacitor delivers verifiable endurance and electrical characteristics—including leakage, tan δ, and impedance behavior—documented for demanding regenerative and fluctuating‑voltage applications, providing predictable performance in production systems.

Request a quote or submit an inquiry to receive pricing and availability for LQS2V331MELA40 and to discuss specific configuration or ordering requirements.