LGY1K392MELC30

The LGY1K392MELC30 is an aluminum electrolytic, snap-in terminal capacitor rated 80 V and 3900 µF, supplied in a radial can (φ35 × 30 mm) and packaged for tray mass production. It is designed for general-purpose applications with a long-life assurance profile—engineered to withstand extended ripple stress and elevated temperature operation up to 105°C.

Typical market segments include industrial power supplies and ballast applications where dependable capacitance, elevated voltage rating and long operating life at high temperature are required. Key value propositions include high capacitance at 80 V, long life (5000 hours at 105°C) and robust ripple-current capability across low and high frequencies.

Key Features

• Capacitance & Rated Voltage — 3900 µF nominal capacitance with a rated voltage of 80 V and tolerance ±20% (120 Hz, 20°C).
• High-temperature Long Life — Rated for operation up to 105°C with long-life endurance specified as 5000 hours at 105°C under rated ripple and DC bias.
• Snap-in Radial Can Package — Snap-in terminal type in a radial can (φ35 × 30 mm) suited for secure board mounting and volume assembly; supplied in tray packing for mass production.
• Ripple Current Performance — Rated ripple current of 2.6 A at 120 Hz and 2.99 A at 50 kHz; frequency coefficients provided in the series datasheet allow scaling of ripple capability across frequencies.
• Wide Operating Temperature Range — Specified for −40°C to +105°C operation, with defined impedance stability at low temperatures (Z(−25°C)/Z(+20°C) up to 4, Z(−40°C)/Z(+20°C) up to 20 for 16–100 V ratings in the series).
• Leakage Current Specification — Leakage current limit defined by the series formula I ≤ 3√(C·V) µA after 5 minutes at 20°C, enabling predictable design margins for standby and bias currents.
• Tangent of Loss Angle (tan δ) — Series specification lists tan δ maximum of 0.20 for 80–100 V ratings (measured at 120 Hz, 20°C), providing a quantifiable dissipation characteristic for thermal and loss budgeting.
• RoHS Compliant — Conforms to RoHS directive requirements as noted for the series.

Typical Applications

• Industrial Power Supplies — Bulk smoothing and filtering in high-voltage industrial supplies where extended high-temperature endurance and sustained ripple handling are required.
• Ballast Circuits — Energy storage and filtering in ballast applications as identified in the LGY series datasheet.
• General-purpose Power Filtering — Decoupling and smoothing in industrial electronics and control equipment that need a high-capacitance, high-voltage snap-in solution.

Unique Advantages

• Long-life assurance: 5000 hours endurance at 105°C under rated conditions provides a predictable lifetime for high-temperature designs.
• High-voltage, high-capacitance combination: 3900 µF at 80 V supports energy storage and filtering needs where both voltage rating and capacitance are required in a compact can.
• Robust ripple capability across frequencies: Published ripple current values at 120 Hz and 50 kHz and frequency coefficients enable designers to size capacitors for real-world AC stress.
• Predictable leakage behavior: Leakage current limited by a defined formula (I ≤ 3√CV µA) ensures repeatable bias current planning.
• Tray packing for production: Supplied for mass production to streamline assembly and inventory handling in volume manufacturing.
• RoHS compliance: Meets RoHS requirements for environmental and regulatory conformity.

Why Choose LGY1K392MELC30?

The LGY1K392MELC30 positions itself as a robust, high-capacitance snap-in aluminum electrolytic for industrial-grade power applications. Its combination of 3900 µF at 80 V, 105°C rating, and 5000-hour endurance makes it suitable for designs that demand sustained performance in elevated-temperature environments and continuous ripple conditions.

This part is well suited to engineers specifying components for industrial power supplies, ballast circuits, and other general-purpose power-filtering roles where long-term reliability and clear, datasheet-backed electrical behavior are priorities. RoHS compliance and tray packing support production-scale deployment and regulatory needs.

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