LQS2W151MELZ40

The LQS2W151MELZ40 is a snap‑in terminal aluminum electrolytic capacitor from Nichicon's LQS series, rated 450 V with a nominal capacitance of 150 µF and ±20% tolerance. It is specified for operation from −25°C to +105°C and is offered in a φ22 × 40 mm can (size: L 4 × D 2.2 cm) with tray packing for mass production.

Designed for demanding power‑electronic environments, this part targets high‑frequency regenerative circuits, inverters and rectifier stages where high voltage, high ripple and robust charge‑discharge endurance are required.

Key Features

• High Voltage & Capacitance — Rated at 450 V with 150 µF nominal capacitance and ±20% tolerance for energy storage and smoothing in high‑voltage power circuits.
• Wide Temperature Range & Long Life — Operating range −25°C to +105°C with a rated endurance of 3000 hours at 105°C.
• Snap‑in Can Package — Radial, can‑type snap‑in mounting for secure board installation and suitability for production assembly (tray packing available).
• High Ripple Current Capability — Rated ripple current of 790 mA at 120 Hz and 1.13 A at 50 kHz to handle AC ripple in rectifier and inverter applications.
• High‑speed Charge/Discharge Performance — Specified for high speed charge‑discharge behavior and endurance under repetitive cycling (endurance test: 50 million cycles at specified conditions).
• Leakage & Loss Characteristics — Leakage current specified I ≤ 3√(C·V) µA after 5 minutes at 20°C; tangent of loss angle (tan δ) for 450 V rated parts is specified (max. 0.20 at 120 Hz, 20°C).
• RoHS Compliant — Meets RoHS directive requirements.

Typical Applications

• AC Servomotor Drives — Suited for high‑frequency regenerative voltage handling in servomotor power stages.
• Power Inverters — Used in general inverter topologies for DC bus smoothing and energy buffering under fluctuating voltages.
• Voltage Doubler Rectifiers — Appropriate for rectifier circuits including voltage doubler configurations where high DC voltage rating is required.
• Equipment in Voltage‑Fluctuating Environments — Applied where systems experience varying mains or generated voltages and robust high‑voltage smoothing is needed.

Unique Advantages

• 450 V Rating for High‑Voltage Designs: Enables use in DC bus and high‑voltage rectifier stages without additional series stacking.
• 105°C Endurance with 3000 h Lifetime: Provides stable performance in elevated temperature environments and predictable long‑term behavior.
• Designed for Repetitive Charge/Discharge: Specified endurance for 50 million charge‑discharge cycles at test conditions, supporting regenerative and cycling applications.
• Robust Ripple Handling: Specified ripple current at both low and high frequencies (790 mA at 120 Hz, 1.13 A at 50 kHz) helps maintain filtering performance across operating conditions.
• Controlled Leakage and Dissipation: Leakage current formula (I ≤ 3√CV) and tan δ specification provide predictable loss and self‑discharge characteristics for system design.
• Production‑Ready Packaging: Tray packing and snap‑in construction support efficient assembly and handling for mass production builds.

Why Choose LQS2W151MELZ40?

The LQS2W151MELZ40 brings a combination of high voltage rating, substantial capacitance and thermal endurance in a snap‑in aluminum can tailored for power‑electronics applications. It is positioned for designers requiring reliable DC bus filtering, regenerative energy handling, and repetitive charge‑discharge capability in demanding environments.

This part is well suited to engineers specifying components for industrial inverters, motor drives and high‑voltage rectifier circuits who need measurable performance attributes—specified ripple currents, leakage limits and long‑term endurance—backed by Nichicon's LQS series documentation and RoHS compliance.

Request a quote or contact our sales team to discuss availability, lead times and volume pricing for the LQS2W151MELZ40.