LHT2W391MELB50

The LHT2W391MELB50 is a snap-in terminal aluminum electrolytic capacitor from Nichicon’s LHT series, offering 390 µF capacitance at a 450 V rated voltage. It is a radial, can-style, snap-in mounted capacitor designed for general-purpose use where high-voltage bulk capacitance and high-temperature endurance are required.

Key value propositions include a wide operating temperature range (−40°C to +125°C), high ripple current capability at both low and high frequencies, and a 3000-hour endurance rating at 125°C—attributes that support demanding power and industrial applications.

Key Features

• Electrical Performance — 390 µF nominal capacitance with ±20% tolerance at 120 Hz and 20°C; rated for 450 V DC.
• High Ripple Current Handling — Rated ripple current of 1.64 A at 120 Hz (125°C) with a frequency coefficient that raises allowable ripple to 2.345 A at 50 kHz, enabling effective handling of both low- and high-frequency ripple.
• Thermal Endurance — Specified for continuous operation from −40°C to +125°C and endurance of 3000 hours at 125°C under D.C. bias plus rated ripple current.
• Leakage and Loss Angle — Leakage current specified (product) at 1250 µA; datasheet loss tangent (tan δ) up to 0.20 max at 120 Hz, 20°C.
• Package & Mounting — Radial, can-type snap-in package (size φ30 × 50 mm) for secure snap-in mounting on power PCBs; tray packing for mass production.
• Compliance — RoHS compliant as stated in product information and datasheet extract.

Typical Applications

• Industrial Power Supplies — High-voltage 450 V rating and 390 µF bulk capacitance support DC-link and bulk energy storage requirements in industrial power modules.
• High-Temperature Equipment — Rated for −40°C to +125°C and 3000 hours endurance at 125°C, suitable for equipment operating in elevated temperature environments.
• Inverters & Motor Drives — Snap-in radial package and high ripple current capability make it appropriate for high-voltage inverter DC-link applications where ripple duty is significant.
• General-Purpose Power Electronics — Use as a general-purpose electrolytic capacitor in designs that require polarized, high-voltage bulk capacitance with robust thermal performance.

Unique Advantages

• High-Voltage Capability: 450 V rated voltage delivers reliable high-voltage bulk capacitance for DC-link and power conversion designs.
• Wide Temperature Operating Range: −40°C to +125°C rating enables deployment in systems exposed to a broad range of environments and elevated operating temperatures.
• Proven Endurance: 3000 hours at 125°C under rated conditions provides defined lifetime performance for long-term reliability planning.
• Robust Ripple Performance: 1.64 A at 120 Hz (125°C) and up to 2.345 A at higher frequencies (50 kHz coefficient applied) supports heavy ripple duty in switching and power circuits.
• Production-Ready Packaging: Tray packing and snap-in terminal design simplify high-volume assembly and secure PCB mounting in production environments.
• Regulatory Compliance: RoHS compliance is documented in the product information and datasheet extract for environmental requirements.

Why Choose LHT2W391MELB50?

The LHT2W391MELB50 is positioned for designs that require high-voltage bulk capacitance combined with high-temperature endurance and substantial ripple handling. Its 450 V rating, 390 µF capacitance, and snap-in radial package deliver a practical solution for industrial power supplies, inverter DC-links, and other general-purpose power electronics where thermal and ripple performance are key selection criteria.

For engineers and procurement teams, this part offers clear, datasheet-backed performance metrics—capacitance, voltage, ripple current, leakage, and 3000-hour endurance at 125°C—making it straightforward to evaluate for systems that demand robust high-voltage, high-temperature capacitors from a recognized manufacturer.

If you would like pricing, availability, or a formal quote for LHT2W391MELB50, please submit a request or inquiry to receive a quote and further product information.