LQS2G221MELA35

The LQS2G221MELA35 is an aluminum electrolytic, snap-in terminal capacitor from Nichicon’s LQS series. It provides 220 µF capacitance at a 400 V rating in a radial can snap-in package sized 25 mm × 35 mm (φ25 × L35 mm).

Designed for power-electronic applications, this capacitor is suited to high-frequency regenerative voltages and inverter environments, including AC servomotor drives, general inverters, equipment operating in voltage-fluctuating areas, and rectifier circuits using a voltage-doubler topology. It combines high-voltage capability, high-frequency ripple handling, and elevated temperature endurance for robust operation in demanding power systems.

Key Features

• Rated performance — 220 µF capacitance at 400 V nominal, with ±20% tolerance at 120 Hz, 20 °C.
• Snap-in terminal package — Radial, can-type snap-in mounting for secure mechanical and electrical installation in power assemblies.
• High-temperature endurance — Operates over –25 °C to +105 °C with an endurance specification of 3000 hours at 105 °C under rated conditions.
• High-frequency ripple capability — Specified ripple current of 1.1 A at 120 Hz and 1.573 A at 50 kHz for high-frequency regenerative or switching environments.
• Charge–discharge durability — Designed to withstand specified charge–discharge behavior: tested for repeated charge–discharge cycles (50 million cycles at room temperature, 6 Hz cycle) while meeting capacitance, dissipation factor, and leakage criteria.
• Electrical stability and loss characteristics — Leakage current defined as I ≤ 3√(C·V) µA after 5 minutes at 20 °C; tangent of loss angle (tan δ) max 0.15 at 400 V (measurement at 120 Hz, 20 °C).
• Low-temperature impedance behavior — Impedance stability characterized at –25 °C (Z(–25 °C) / Z(+20 °C) = up to 8 for 350–450 V range at 120 Hz), enabling performance in cooler ambient conditions.
• RoHS compliant — Meets RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• AC servomotor drives — Handles high-frequency regenerative voltages encountered in motor control applications.
• General inverters — Provides bulk energy storage and ripple smoothing in inverter DC-link and regenerative networks.
• Voltage-fluctuating equipment — Suited to equipment deployed in environments with variable supply conditions that demand robust voltage endurance.
• Rectifier / voltage-doubler circuits — Applicable for DC-link and smoothing roles in rectifier topologies including voltage doublers.

Unique Advantages

• High-voltage capability: 400 V rating supports demanding DC-link and regenerative circuits without the need for series stacking.
• Designed for high-frequency duty: Specified ripple current at 50 kHz (1.573 A) and 120 Hz (1.1 A) aligns the part to switching and regenerative applications.
• Robust thermal life: 3000 hours at 105 °C endurance provides predictable long-term performance in elevated-temperature power assemblies.
• Durability under cycling: Engineered and tested for extensive charge–discharge cycling (50 million cycles at specified test conditions), supporting frequent regenerative events.
• Compact power form factor: φ25 × 35 mm radial can with snap-in terminals optimizes board-space for power electronics racks and assemblies.
• Manufactured by Nichicon: Part of the LQS series from Nichicon, providing series-level datasheet and specification continuity for system design.

Why Choose LQS2G221MELA35?

The LQS2G221MELA35 is positioned for designers seeking a proven, high-voltage electrolytic solution for power-electronic DC-link, regenerative and inverter applications. Its combination of 400 V rating, 220 µF capacitance, high-frequency ripple handling and elevated temperature endurance makes it suitable for equipment exposed to frequent voltage swings and regenerative energy flow.

This capacitor targets engineers and procurement teams building motor drives, inverters, and rectifier circuits where predictable lifecycle behavior, thermal endurance and compact snap-in packaging matter. The RoHS compliance and documented electrical characteristics support reliable integration into production designs backed by manufacturer specifications.

Request a quote or submit an inquiry for pricing and availability to evaluate LQS2G221MELA35 for your next power-electronics design.