LNU2H182MTEH

The LNU2H182MTEH from Nichicon is a screw‑terminal aluminum electrolytic capacitor in the LNU series, specified for high‑voltage industrial applications. With a 1.8 mF (1800 µF) capacitance and a 500 V rated voltage, this polarized capacitor is designed for inverter and regenerative circuits where high voltage, repeated charge/discharge loading and compact packaging are required.

Engineered for industrial power supplies, motor drive regenerative circuits and general inverters, the LNU2H182MTEH combines high ripple capability, high‑frequency performance and extended endurance at elevated temperature to support demanding power‑electronic designs.

Key Features

• High Voltage & Capacitance — Rated at 500 V with 1.8 mF capacitance to support high‑voltage DC bus and filtering applications.
• High‑Temperature Endurance — Specified for operation to 105°C with a rated load life of 5000 hours under ripple current, providing long service in hot environments.
• High Ripple and High‑Frequency Performance — Ripple current capability of 7.4 A at 120 Hz and 10.36 A at 10 kHz for effective smoothing under both low and high frequency ripple conditions.
• Screw‑Terminal, Stud/Bolt Mount — Radial can with screw terminals and stud bolt mounting for secure, low‑impedance connections in high‑current power assemblies.
• Charge–Discharge Endurance — Designed to withstand charge–discharge cycling; specified endurance includes performance verification after 50 million charge–discharge cycles (3 Hz) under stated conditions.
• Leakage and Insulation Characteristics — Leakage current specification after 5 minutes follows the datasheet formula (≤ 3√CV μA or 5 mA, whichever is smaller) and insulation resistance is greater than 100 MΩ at DC 500 V between terminal and bracket.
• Proven Safety Margins — Voltage proof testing of AC 2500 V for 1 minute between terminal and bracket is specified to validate dielectric integrity.
• RoHS Compliant — Conforms to RoHS directives (2011/65/EU and (EU)2015/863).

Typical Applications

• Industrial Inverters — DC bus filtering and energy storage for inverter circuitry in industrial power supplies where elevated voltage and temperature endurance are required.
• AC Servomotor Regeneration — Handles high‑frequency regenerative voltages and fast charge/discharge cycles typical of motor drive regenerative circuits.
• General Power Electronics — Bulk smoothing and ripple suppression in high‑voltage assemblies and power converters used across industrial equipment.

Unique Advantages

• High Voltage Capability: Supports rated voltages up to 500 V (series rated to DC 525 V), enabling use on higher‑voltage DC buses.
• Compact High‑Voltage Option: LNU series provides a smaller sized, high‑voltage footprint compared to larger family members, aiding in space‑constrained power designs.
• High Ripple Handling: Measured ripple current performance at both 120 Hz and 10 kHz makes the part suitable for mixed‑frequency ripple environments.
• Robust Thermal Life: 5000 hours of rated life at 105°C under ripple load—supporting sustained operation in harsh thermal conditions.
• Secure Electrical Termination: Screw terminals and stud bolt mounting deliver reliable, low‑resistance connections for high‑current applications.
• Manufactured by Nichicon: Backed by Nichicon engineering and datasheet‑defined test criteria for insulation, voltage proof and leakage behavior.

Why Choose LNU2H182MTEH?

The LNU2H182MTEH is positioned for engineers who need a high‑voltage, high‑endurance electrolytic capacitor for industrial power electronics. Its combination of 500 V rating, 1.8 mF capacitance, strong ripple performance at both low and high frequencies, and a 105°C, 5000‑hour endurance profile make it well suited to inverter DC buses, regenerative motor drives and other demanding power‑conversion roles.

Designed and manufactured by Nichicon with screw‑terminal mounting and datasheet‑specified electrical and endurance tests, this part delivers verifiable performance and long‑term robustness for production designs that require high voltage handling and repeated charge/discharge capability.

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