LQS2W101MELZ30

The LQS2W101MELZ30 from Nichicon is a snap‑in terminal aluminum electrolytic capacitor designed for high‑speed charge‑discharge applications. With a 100 µF capacitance at a 450 V rating and a wide operating temperature range, it targets industrial power electronics requiring high voltage handling and robust thermal performance.

Engineered for regenerative and high‑frequency environments, this snap‑in, radial can package is suited for inverter and motor‑drive circuits, voltage doubler rectifiers, and equipment exposed to fluctuating voltages, while meeting RoHS requirements.

Key Features

• Nominal electricals — 100 µF capacitance at 450 V with ±20% tolerance, polarized design for DC energy storage and filtering.
• High temperature rating — Rated for operation from −25°С to +105°С with endurance specified for 3000 hours at 105°С under DC bias plus rated ripple current.
• High‑speed charge/discharge endurance — Specified endurance after 50 million charge/discharge cycles (6 Hz, ΔV = rated voltage + 0.35) with capacitance change within ±20% and leakage current within initial limits.
• Ripple current capability — Rated ripple current of 690 mA at 120 Hz and 986.7 mA at 50 kHz, supporting both low‑ and high‑frequency applications.
• Leakage current specification — I ≤ 3√(C·V) µA after 5 minutes at 20°С (C: µF, V: V), enabling verifiable leakage performance.
• Low‑temperature stability — Impedance ratio Z(−25°С)/Z(+20°С) up to 8, supporting performance in colder ambient conditions.
• Robust snap‑in package — Radial, can‑style snap‑in termination for secure PCB mounting and mechanical stability in power assemblies.
• Regulatory compliance — Compliant with the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Inverters and motor drives — Handles high voltage and regenerative currents typical in AC servomotor drives and general inverter power stages.
• Regenerative circuits — Designed for high‑frequency regenerative voltage environments where rapid charge/discharge is required.
• Rectifier and voltage‑doubler stages — Suited for rectifier circuits, including voltage doubler configurations requiring stable high‑voltage capacitance.
• Industrial equipment in fluctuating voltage environments — Intended for systems exposed to wide or varying supply conditions, offering thermal and electrical endurance.

Unique Advantages

• High voltage capability: 450 V rating enables use in high‑voltage DC link and energy storage sections.
• Thermal endurance: 105°С maximum operating temperature and 3000 hours endurance at 105°С deliver predictable long‑term performance under heat stress.
• Demonstrated charge/discharge durability: Specified performance after 50 million cycles at room temperature supports applications with frequent energy transfer.
• Broad ripple handling: Clear ripple current specifications at both 120 Hz and 50 kHz help designers manage thermal rise and lifetime in mixed‑frequency systems.
• Measured leakage behavior: Leakage current limit defined by I ≤ 3√CV µA provides a calculable baseline for system leakage budgeting and testing.
• Snap‑in mounting for reliability: Radial snap‑in construction offers a robust mechanical connection appropriate for industrial PCBs and power modules.

Why Choose LQS2W101MELZ30?

The LQS2W101MELZ30 balances high voltage capability, thermal endurance, and charge/discharge robustness in a snap‑in aluminum electrolytic package from Nichicon. Its specification set — including 450 V rating, 100 µF capacitance, wide operating temperature range, and defined ripple and leakage metrics — makes it a practical choice for industrial power electronics where reliable high‑voltage energy storage and frequent charge cycling are required.

This capacitor is well suited for designers of inverters, motor drives, regenerative power stages, and rectifier/voltage‑doubler circuits who need verifiable endurance and clear electrical limits. Its RoHS compliance and documented endurance characteristics support long‑term deployment in regulated industrial applications.

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