LHX2W331MELC35

The LHX2W331MELC35 from Nichicon is a snap‑in terminal aluminum electrolytic capacitor in the LHX series designed for high‑voltage, high‑temperature applications. With a rated voltage of 450V and a nominal capacitance of 330 µF, this polarized, radial can capacitor delivers bulk energy storage and smoothing in equipment that requires elevated temperature endurance and reliable long‑life performance.

Engineered for general‑purpose use, the LHX2W331MELC35 combines snap‑in mounting for secure mechanical retention with specifications that support operation up to 125°C and long endurance under DC bias plus ripple stress.

Key Features

• Voltage & Capacitance — Rated for 450V with 330 µF nominal capacitance and ±20% tolerance (measured at 120Hz, 20°C), providing substantial bulk capacitance for high‑voltage circuits.
• High‑Temperature Long Life — Qualified for operation from −40°C to +125°C with a rated endurance of 5000 hours at 125°C under DC bias plus rated ripple current (meets the LHX series long‑life specification).
• Snap‑In Radial Can Package — Snap‑in terminal type and radial can (35 × 35 mm) for secure board mounting and reliable mechanical retention in power assemblies.
• Loss and Leakage Characteristics — Tangent of loss angle (tan δ) ≤ 0.20 (120Hz, 20°C); leakage current specified per datasheet as I ≤ 3√(C·V) (µA) after 5 minutes at 20°C, with initial leakage current shown as 1.15 mA for this size in the datasheet table.
• Rated Ripple Performance — Rated ripple current 1.51 A (120Hz, 125°C) for this size; higher frequency ripple capability noted with frequency coefficients in the datasheet (e.g., 1.43× at 50 kHz and above).
• RoHS Compliant — Conforms to the RoHS directive (2011/65/EU, (EU)2015/863) for restricted substances.

Typical Applications

• General‑Purpose Electronic Equipment — Provides high‑voltage bulk capacitance and smoothing where durable, high‑temperature operation is required.
• High‑Temperature Power Modules — Suitable for assemblies that require capacitors rated to 125°C and specified long‑life endurance under DC bias plus ripple current.
• Chassis‑Mounted Power Assemblies — Snap‑in package and radial can construction deliver secure mechanical retention for board or module installation in industrial equipment.

Unique Advantages

• High Voltage Capacity: 450V rating supports applications requiring elevated DC bus voltages without series stacking.
• Long‑Life Endurance: 5000 hours at 125°C under rated stress helps extend maintenance intervals and system uptime in high‑temperature environments.
• High Ripple Handling: 1.51 A rated ripple at 120Hz (125°C) with frequency coefficients for higher frequencies supports effective ripple absorption across a wide range of operating frequencies.
• Defined Leakage Limits: Leakage current specified by I ≤ 3√(C·V) (µA) ensures predictable behavior after initial application of rated voltage; datasheet lists an initial leakage current reference for this size.
• Robust Mounting: Snap‑in terminal design and radial can package provide secure mechanical attachment for high‑vibration or module‑level assemblies.
• Regulatory Compliance: RoHS conformity aligns the component with restricted‑substance requirements for international equipment manufacturing.

Why Choose LHX2W331MELC35?

The LHX2W331MELC35 balances high voltage capability, substantial bulk capacitance, and elevated temperature endurance for designs that demand reliable long‑term performance. Its snap‑in radial can package simplifies mechanical integration while delivering the ripple and leakage characteristics engineers need to predict circuit behavior under DC bias and ripple stress.

This part is well suited to designers and procurement teams specifying capacitors for industrial and high‑temperature electronic equipment where 450V rating, 330 µF capacitance, and long life at 125°C are required. Supported by Nichicon’s LHX series specifications and RoHS compliance, the LHX2W331MELC35 offers a documented, verifiable component choice for robust power and energy‑storage needs.

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