LQS2W121MELA30

The LQS2W121MELA30 is a snap‑in terminal aluminum electrolytic capacitor from Nichicon’s LQS series, rated 450 V with 120 µF capacitance. It is designed for high‑speed charge‑discharge performance in power electronics environments.

Typical use cases include high‑frequency regenerative circuits and inverter systems where voltage fluctuation and robust ripple handling are required. The part combines high voltage capability, compact radial can packaging, and long‑life endurance for demanding industrial power applications.

Key Features

• Capacitance & Voltage — 120 µF nominal capacitance with a rated voltage of 450 V and a tolerance of ±20% (120 Hz, 20°C).
• High‑speed charge/discharge — Designed for rapid charge–discharge behavior as specified for the LQS series, suitable for regenerative and switching environments.
• Thermal range & lifetime — Operates from −25°C to +105°C with an endurance specification of 3000 hours at 105°C.
• Charge‑discharge endurance verification — Series specifications include an endurance verification after 50 million charge–discharge cycles (cycle conditions and limits per datasheet) showing controlled capacitance change, tan δ and leakage behavior.
• Ripple current capability — Rated ripple current of 720 mA at 120 Hz and 1.03 A at 50 kHz for handling low‑ and high‑frequency stress in power circuits.
• Leakage and loss characteristics — Leakage current follows I ≤ 3√(C·V) (µA) after 5 minutes at 20°C; tangent of loss angle (tan δ) specified up to 0.20 at 450 V.
• Package & mounting — Radial can, snap‑in terminal configuration with compact dimensions (≈25 mm diameter × 30 mm length) for secure PCB installation.
• Regulatory — RoHS compliant (2011/65/EU, (EU)2015/863).

Typical Applications

• AC servomotor regenerative systems — Handles high‑frequency regenerative voltage and rapid charge/discharge cycles encountered in motor drive feedback.
• General inverters — Provides DC link energy storage and ripple handling for inverter stages in industrial and commercial drives.
• Voltage‑fluctuation environments — Suited for equipment operating where supply voltages vary, offering stable capacitance and leakage behavior across stress conditions.
• Rectifier / voltage doubler circuits — Intended for use in rectifier topologies including voltage doubler configurations where reliable high‑voltage capacitance is needed.

Unique Advantages

• High voltage capability: 450 V rating supports DC link and high‑voltage power circuits without series stacking.
• Compact, serviceable package: Snap‑in radial can (≈25 mm × 30 mm) enables robust mounting and straightforward replacement in power assemblies.
• Designed for frequent switching: Endurance tests for high‑speed charge/discharge and a defined 50 million cycle validation provide verifiable durability in switching applications.
• Wide operating temperature: −25°C to +105°C operation with 3000 hours endurance at 105°C supports demanding industrial thermal environments.
• Measured ripple handling: Specified ripple currents at both 120 Hz and 50 kHz give designers concrete limits for low‑ and high‑frequency ripple budgeting.
• RoHS compliance: Meets applicable RoHS directives for environmental and regulatory alignment.

Why Choose LQS2W121MELA30?

The LQS2W121MELA30 brings a combination of high voltage, verified charge/discharge endurance, and practical mounting in a compact snap‑in aluminum can—attributes aligned to power electronics applications such as inverters, motor drives, and rectifier networks. Its ripple current specifications and thermal endurance make it a practical choice for designers balancing performance, reliability, and board space.

Produced under Nichicon’s LQS series specifications, this capacitor suits engineering teams and procurement professionals seeking a documented, series‑specified electrolytic capacitor with established electrical and endurance characteristics for industrial power designs.

Request a quote or submit a quotation request for LQS2W121MELA30 to obtain pricing and lead‑time information for your project requirements.