LHX2W271MELC30

The LHX2W271MELC30 is a Nichicon LHX series snap‑in aluminum electrolytic capacitor designed for high‑voltage, high‑temperature applications. It delivers 270 µF capacitance at a 450 V rating in a radial, snap‑in can package intended for general‑purpose power electronics where long life and elevated temperature support are required.

Key value drivers include a wide operating temperature range of −40 °C to +125 °C, a rated lifetime of 5000 h at 125 °C, and RoHS compliance, making it suitable for systems that demand reliable bulk capacitance and DC‑link performance under thermal stress.

Key Features

• Electrical Capacity and Rating — 270 µF capacitance with a 450 V rated voltage and ±20% tolerance, providing substantial bulk energy storage for high‑voltage circuits.
• High‑Temperature Long Life — Designed for operation from −40 °C to +125 °C with an endurance specification of 5000 h at 125 °C under DC bias plus rated ripple current.
• Robust Ripple Handling — Rated ripple currents include 1.34 A at 120 Hz (125 °C) and 1.916 A at 50 kHz, with frequency coefficients provided for scaling ripple specifications versus frequency.
• Leakage and Loss Characteristics — Leakage current specified by I ≤ 3√(C·V) µA (after 5 minutes at 20 °C), and tangent of loss angle (tan δ) max 0.20 at 120 Hz, 20 °C.
• Low‑Temperature Stability — Impedance ratio Z(−25 °C)/Z(+20 °C) ≤ 8 at 120 Hz, supporting stable performance in colder environments.
• Package & Mounting — Radial, can style with snap‑in terminals for secure PCB mounting; size defined as L: 3 cm × D: 3.5 cm (snap‑in radial can).
• Environmental Compliance — Compliant with the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• High‑voltage power supplies — Bulk smoothing and energy storage where a 450 V rating and 270 µF capacitance are required to stabilize DC rails.
• Power conversion and DC‑link circuits — DC‑link filtering in converters and inverters that operate at elevated temperatures and demand long service life.
• Industrial power electronics — Support for industrial drive systems and power modules that require high ripple tolerance and thermal endurance.

Unique Advantages

• High‑temperature endurance: Rated for 5000 h at 125 °C, enabling extended service life in thermally demanding installations.
• High voltage capability: 450 V rating provides margin for high‑voltage DC systems and DC‑link applications.
• Secure snap‑in mounting: Radial snap‑in can construction simplifies PCB retention and mechanical stability in heavy‑current assemblies.
• Measurable ripple performance: Specified ripple currents at 120 Hz and 50 kHz let designers size cooling and ripple margins accurately.
• Controlled leakage and dissipation: Leakage current defined by industry‑grade formula (I ≤ 3√CV µA) and tan δ ≤ 0.20 at 120 Hz for predictable loss and insulation behavior.
• RoHS compliant: Meets current RoHS requirements for restricted substances.

Why Choose LHX2W271MELC30?

The LHX2W271MELC30 combines a high 450 V rating with significant capacitance and a snap‑in radial package to address demanding power‑electronics designs that need reliable bulk energy storage at elevated temperatures. Its endurance rating of 5000 h at 125 °C and defined ripple and leakage characteristics make it a clear choice when predictable long‑term behavior under thermal and electrical stress is required.

This part is well suited to engineers and procurement teams specifying capacitors for high‑voltage power supplies, DC‑link filters, and industrial power systems where long life, thermal resilience, and RoHS compliance are key selection criteria.

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