LGX2E391MELZ35

The LGX2E391MELZ35 is a snap-in terminal aluminum electrolytic capacitor from Nichicon’s LGX series designed for long-life operation at elevated temperatures. It delivers 390 µF capacitance at a 250 V rating in a compact radial snap-in can suitable for power electronics assemblies.

Engineered for power conversion and rectification applications, this capacitor is specifically suited for rectifier circuits in general inverters and switching power supplies, offering long-life assurance under rated ripple current at 105°C.

Key Features

• Electrical Characteristics — 390 µF nominal capacitance with ±20% tolerance (at 120 Hz, 20°C) and a rated voltage of 250 V.
• High-Temperature Long Life — Designed to withstand 5000 hours of D.C. bias plus rated ripple current at 105°C; endurance criteria include capacitance change within ±20% and leakage current within the initial specified value after test.
• Ripple Current Capability — Rated ripple current of 1.44 A at 120 Hz and 2.16 A at 50 kHz for effective smoothing and filtering in power circuits.
• Operating Temperature Range — Specified for operation from −25°C to +105°C to accommodate elevated junction temperatures in power assemblies.
• Package and Mounting — Radial, can-style snap-in package for robust PCB retention and reliable power-trace connections.
• Low-Temperature Stability — Impedance stability characterized by Z(−25°C)/Z(+20°C) up to 4 for the 200–250 V range, maintaining performance in cooler environments.
• Leakage and Loss Characteristics — Leakage current specified by I ≤ 3√(C·V) μA (after 5 minutes at 20°C); tangent of loss angle (tan δ) max 0.15 for 200–400 V ratings at 120 Hz, 20°C.
• Environmental Compliance — RoHS compliant (2011/65/EU, (EU)2015/863).
• Compact Footprint — Smaller-sized construction with dimensions L: 3.5 × D: 2.2 cm to save board area in dense power assemblies.

Typical Applications

• General Inverter Rectifiers — Used in rectifier circuits to smooth and stabilize DC outputs where long life at elevated temperature is required.
• Switching Power Supplies — Provides bulk filtering and ripple handling for mid-voltage rails in power supply front ends.
• General Purpose Power Filtering — Suitable for power conversion and regulation circuits that demand stable capacitance and controlled leakage over time.

Unique Advantages

• Proven High-Temperature Endurance: 5000-hour rating at 105°C under rated ripple current delivers predictable ageing behavior for thermal-stressed designs.
• Mid-Voltage Capability: 250 V rating supports common inverter and power-supply voltage rails without overspecifying parts.
• Measurable Ripple Performance: Specified ripple currents at 120 Hz and 50 kHz let designers size capacitors for both low- and high-frequency filtering tasks.
• Compact Snap-In Packaging: Radial snap-in can reduces assembly time while providing robust mechanical retention for power modules.
• Quantified Low-Temp Behavior: Specified impedance ratio at −25°C helps predict filtering performance across the operating temperature range.
• Regulatory Compliance: RoHS conformity simplifies regulatory tracking and product acceptance in restricted-substance environments.

Why Choose LGX2E391MELZ35?

The LGX2E391MELZ35 combines a 250 V rating and 390 µF capacitance in a compact snap-in package engineered for long life at elevated temperatures. Its defined endurance tests (5000 hours at 105°C under rated ripple) and explicit ripple-current specifications make it a practical choice for designers of inverters and switching power supplies who need predictable, durable bulk capacitance.

This capacitor is well suited to power-electronics designs that require a balance of board-space efficiency, mid-voltage handling, and verifiable long-term performance with RoHS compliance for broad market acceptance.

If you would like pricing, lead-time, or a formal quote for LGX2E391MELZ35, please request a quote or contact sales to discuss quantity pricing and delivery options.