LGX2W151MELZ40

The LGX2W151MELZ40 is a snap‑in terminal aluminum electrolytic capacitor from Nichicon’s LGX series, designed for long life and reliable power filtering. It provides 150 µF at 450 V in a compact φ22 × 40 mm can with radial snap‑in mounting, suited for industrial power electronics requiring robust DC-link and rectifier performance.

Optimized for applications such as rectifier circuits in general inverters and switching power supplies, this part combines high voltage capability, substantial ripple handling and a long endurance rating to support sustained operation in demanding thermal environments.

Key Features

• Capacitance & Voltage: 150 µF rated at 450 V, ±20% tolerance—sized for DC‑link and energy storage in medium‑voltage power stages.
• Long Life Assurance: Endurance of 5000 hours at 105°C with DC bias plus rated ripple current, supporting prolonged operation under elevated temperature.
• High Ripple Current Handling: 880 mA at 120 Hz (low frequency) and 1.258 A at 50 kHz (high frequency), enabling effective smoothing of rectified and switching currents.
• Low Dissipation: Tan δ (DF) ≤ 0.20 measured at 20°C and 120 Hz, contributing to lower internal heating and improved efficiency in filter applications.
• Leakage Current: Specified leakage current of 770 µA, suitable for high‑voltage applications where controlled leakage is important.
• Compact Snap‑In Package: φ22 × 40 mm radial can with snap‑in terminals for secure PCB mounting and mechanical stability in power modules.
• Operating Range & Compliance: Rated for −25°C to +105°C and RoHS compliant, supporting a broad set of industrial operating conditions.
• Production Ready: Tray packing and mass production status for predictable sourcing and assembly integration.

Typical Applications

• Inverter Rectifier Stages: Used in rectifier circuits for general inverters to provide DC‑link smoothing and energy buffering under continuous ripple stress.
• Switching Power Supplies: Serves as bulk filtering and ripple attenuation in switching power supplies where high voltage and ripple current capability are required.
• General Purpose Power Electronics: Suited for a range of industrial power modules and converters that require high‑voltage capacitors with long endurance.

Unique Advantages

• Designed for Long‑Term Reliability: 5000‑hour endurance at 105°C demonstrates sustained performance under elevated operating temperature.
• High Voltage Capability: 450 V rating enables use in medium‑voltage DC‑link and rectifier applications without additional series stacking.
• Effective Ripple Management: Measured ripple ratings at both 120 Hz and 50 kHz allow predictable thermal and electrical behavior across rectified and switching frequencies.
• Low Dissipation Factor: Tan δ ≤ 0.20 at standard test conditions reduces internal losses and helps limit temperature rise during operation.
• Compact, Robust Mounting: φ22 × 40 mm snap‑in can provides a space‑efficient footprint with secure board attachment for power assemblies.
• RoHS Compliant and Production Ready: Conforms to RoHS and is available in tray packing for streamlined manufacturing and procurement.

Why Choose LGX2W151MELZ40?

The LGX2W151MELZ40 balances high voltage rating, reliable ripple handling and long thermal endurance in a compact snap‑in package, making it a practical choice for engineers designing DC‑link, rectifier and power filter stages. Its combination of 150 µF at 450 V, specified ripple currents at both low and high frequencies, and 5000‑hour life at 105°C provides a clear, verifiable basis for component selection in industrial power electronics.

This part is well suited to development and production environments that require predictable performance, RoHS compliance, and tray‑packed availability for volume assembly.

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