LGW2D122MELC30

The LGW2D122MELC30 is a Nichicon LGW series aluminum electrolytic capacitor in a snap-in radial can package. It delivers 1.2 mF (1200 µF) at 200 V with polarized construction and snap-in terminals for board or chassis mounting.

Designed for high ripple applications, this part provides elevated ripple current capability and long endurance at elevated temperature, making it suitable for general-purpose power filtering where sustained performance at up to 105°C is required.

Key Features

• Capacitance & Voltage: 1.2 mF (1200 µF) rated at 200 V, ±20% tolerance at 120 Hz, 20°C.
• High ripple current: Rated ripple current of 4.2 A at 120 Hz and 6.3 A at 50 kHz; frequency coefficient of rated ripple current (200–250 V): 50 Hz = 0.81, 60 Hz = 0.85, 120 Hz = 1.00, 300 Hz = 1.17, 1 kHz = 1.32, 10 kHz = 1.45, ≥50 kHz = 1.50.
• High-temperature endurance: Withstands rated ripple current applied for 3000 hours at 105°C (endurance test conditions from the LGW series datasheet).
• Wide operating temperature range: Specified for –40°C to +105°C (for the 200 V rating).
• Low leakage and dissipation characteristics: Leakage current specified as I ≤ 3√(CV) µA after 5 minutes at 20°C; tangent of loss angle (tan δ) max 0.15 at 120 Hz, 20°C for 200–400 V ratings.
• Package & mounting: Snap-in terminal radial can for secure mechanical mounting; nominal size approximately L: 3 cm × D: 3.5 cm.
• Regulatory compliance: RoHS compliant (meets RoHS directive requirements noted in the datasheet).

Typical Applications

• General-purpose power filtering: Provides bulk capacitance and smoothing for general-purpose power circuits at up to 200 V.
• High-ripple power circuits: Suited to applications that require elevated ripple handling thanks to rated ripple current and frequency coefficients.
• PCB/chassis mounted power assemblies: Snap-in radial can package supports secure board or chassis mounting in power modules and assemblies.

Unique Advantages

• Designed for sustained thermal stress: 3000-hour endurance at 105°C under rated ripple current supports long-term operation in hot environments.
• Measurable ripple capability: Explicit ripple current ratings at both low and high frequencies allow predictable thermal and life management in design.
• Quantified low-temperature behavior: Impedance stability data (per datasheet for 200–250 V) helps predict performance down to –40°C.
• Engineer-focused electrical specs: Clear limits for leakage current (I ≤ 3√CV µA) and tan δ (max 0.15) enable straightforward design trade-offs.
• RoHS compliance: Meets environmental directive requirements, simplifying regulatory considerations for assemblies.

Why Choose LGW2D122MELC30?

The LGW2D122MELC30 brings together a high-capacitance 200 V rating, robust snap-in packaging, and explicit high-ripple specifications with documented endurance at 105°C. It is positioned for engineers who need reliable, quantifiable performance for general-purpose power filtering and high-ripple circuits where long-term thermal endurance and predictable electrical behavior matter.

This part is appropriate for designs that require polarized aluminum electrolytic capacitance with secure mechanical mounting and clear datasheet parameters for ripple, leakage, and dissipation — supporting design decisions and long-term reliability planning.

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