LGW2G121MELA25

The LGW2G121MELA25 is a snap‑in terminal aluminum electrolytic capacitor rated 400V with 120µF capacitance and ±20% tolerance. Designed as a high‑ripple current, general‑purpose power capacitor, it combines a compact φ25 × 25 mm can with polarized snap‑in mounting and long‑term endurance at elevated temperature.

This part targets applications that require high DC voltage capability and sustained ripple handling at temperatures up to 105°C, offering a combination of ripple current performance, controlled dissipation factor, and a 3000‑hour endurance rating at 105°C.

Key Features

• Rated Capacitance and Voltage — 120 µF at 400 V, ±20% tolerance, suitable for high‑voltage DC circuits and general‑purpose power applications.
• High Ripple Current — 1.220 A at 120 Hz (low frequency) and 1.7446 A at 100 kHz (high frequency) to support demanding ripple and smoothing requirements.
• Thermal Endurance — 3000 hours rated life at 105°C when subjected to DC bias plus rated ripple current, providing documented long‑term stability under high temperature stress.
• Low Dissipation Factor — tan δ (DF) max 0.15 measured at 20°C, 120 Hz, indicating controlled losses for power applications.
• Leakage Current — 650 µA initial leakage current, specified after rated voltage application, useful for predicting standby and bias currents in power designs.
• Mechanical & Mounting — φ25 × 25 mm radial can with snap‑in terminals for secure vertical board mounting; packaged in trays and available for mass production.
• Environmental Compliance — RoHS compliant.
• Operating Temperature — −25°C to +105°C, matching the 400 V series category temperature range for this voltage class.

Typical Applications

• Power rail filtering — Bulk smoothing and filtering on high‑voltage DC rails, leveraging the 400 V rating and high ripple current capability.
• Switching power supplies — Energy storage and ripple handling where sustained high ripple current and 105°C endurance are required.
• Industrial power electronics — General‑purpose DC link and decoupling roles in equipment that require a polarized, high‑voltage capacitor with robust thermal endurance.

Unique Advantages

• High ripple tolerance: Specified low‑ and high‑frequency ripple currents (1.220 A at 120 Hz; 1.7446 A at 100 kHz) let designers manage heat and lifetime in demanding power circuits.
• Documented 105°C endurance: 3000 hours of rated performance at 105°C under DC bias plus ripple current supports reliable long‑term operation in hot environments.
• Controlled dissipation: tan δ ≤ 0.15 at 20°C, 120 Hz helps limit losses and thermal rise in high‑voltage applications.
• Compact, serviceable package: φ25 × 25 mm snap‑in can provides a secure board mount and tray packing for production assembly.
• Predictable leakage: 650 µA initial leakage current simplifies bias and standby current budgeting in designs.
• Regulatory compliance: RoHS compliance facilitates use in regulated markets and reduces materials‑handling concerns.

Why Choose LGW2G121MELA25?

The LGW2G121MELA25 positions itself as a robust, general‑purpose high‑voltage electrolytic capacitor for designers who need 400 V capability, strong ripple handling, and proven thermal endurance. Its specification set — including a 120 µF capacitance, low dissipation factor, quantified leakage current, and a 3000‑hour rating at 105°C — makes it well suited for power filtering and smoothing tasks in industrial and high‑voltage DC applications.

Available in a φ25 × 25 mm snap‑in can with tray packing for mass production, this capacitor offers predictable electrical behavior and lifecycle characteristics that help simplify BOM decisions and thermal budgeting for long‑running equipment.

If you would like pricing or availability for LGW2G121MELA25, request a quote or contact sales to submit a quote request and receive ordering details tailored to your production needs.