LGX2E821MELB35

The LGX2E821MELB35 is a snap‑in terminal aluminum electrolytic capacitor designed for high-voltage power applications. It combines an 820 µF capacitance with a 250 V rating in a smaller-sized, radial can snap‑in package optimized for general-purpose power electronics.

Engineered for long-life operation up to 105°C, this part is suited for rectifier circuits in general inverters and switching power supplies where sustained ripple handling and thermal endurance are required.

Key Features

• Electrical Performance — 820 µF nominal capacitance with a rated voltage of 250 V and capacitance tolerance of ±20% (at 120 Hz, 20°C).
• High‑Temperature Endurance — Rated for operation from −25°C to +105°C with a long-life assurance of 5000 hours under DC bias plus rated ripple current at 105°C.
• Ripple Current Capability — Rated ripple current of 2.06 A at 120 Hz (low frequency) and 3.09 A at 50 kHz (high frequency), supporting rectifier and switching applications.
• Leakage and Loss Characteristics — Leakage current specified as I ≤ 3√CV (µA) after 5 minutes' application of rated voltage at 20°C; tan δ limit for the 200–400 V range is 0.15 (measured at 120 Hz, 20°C).
• Stability at Low Temperature — Impedance ratio Z(−25°C)/Z(+20°C) ≤ 4 for the 200–250 V category (measured at 120 Hz).
• Mechanical / Package — Radial, can type with snap‑in terminals for PCB mounting; smaller-sized footprint (L: 3.5 × D: 3 cm) and seated height max 1.378 inch.
• Compliance — RoHS compliant (2011/65/EU, (EU)2015/863).

Typical Applications

• Rectifier circuits for inverters — Provides bulk capacitance and ripple smoothing in the rectifier stages of general inverter designs.
• Switching power supplies — Used for energy storage, smoothing, and ripple handling in high-voltage switching regulator rails.
• General-purpose power electronics — Suitable where polarized, high-voltage electrolytic bulk capacitance with long thermal life is required.

Unique Advantages

• Long-life thermal reliability: 5000-hour endurance at 105°C ensures sustained performance under elevated operating temperatures.
• Strong ripple handling: Specified ripple currents at both 120 Hz and 50 kHz support a range of rectifier and switching frequencies.
• Compact snap‑in package: Smaller-sized radial can with snap‑in terminals simplifies PCB mounting and saves chassis space compared to larger high-voltage capacitors.
• Low-temperature stability: Controlled impedance increase at −25°C (Z ratio ≤ 4) helps maintain performance across the rated operating range.
• Verified leakage and dissipation limits: Leakage current and tan δ specifications allow predictable sizing for power and thermal design.
• RoHS compliance: Meets current RoHS directives for environmental and materials considerations.

Why Choose LGX2E821MELB35?

LGX2E821MELB35 delivers a balanced combination of high-voltage capacitance, sustained high-temperature endurance, and practical PCB-friendly snap‑in packaging. Its defined ripple current ratings and series-specified electrical limits make it suitable for engineers designing rectifier stages and switching power supplies that require reliable bulk energy storage at 250 V.

This capacitor is appropriate for designers and procurement teams seeking a RoHS‑compliant, long-life electrolytic solution with verifiable leakage, dissipation, and low‑temperature stability characteristics, backed by series-level endurance and shelf‑life performance data.

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