LNUN7272MSEHBN

The LNUN7272MSEHBN is a screw‑terminal aluminum electrolytic capacitor from Nichicon's LNU series designed for high‑voltage power electronics. It delivers 2.7 mF capacitance at a rated DC voltage of 525 V and is optimized for industrial power supplies and inverter circuitry where high voltage, high ripple handling and compact size are required.

Engineered for demanding environments, this capacitor supports operation from −40 °C to +105 °C, a 5000‑hour load life at 105 °C under rated ripple current, and charge‑discharge endurance suited to high‑frequency regenerative and inverter applications. It is RoHS‑compliant.

Key Features

• High Voltage Capability — Rated up to DC 525 V, enabling use in high‑voltage inverter and industrial power supply designs.
• Large Capacitance — 2.7 mF nominal capacitance to support energy buffering and smoothing in power electronics circuits.
• High Ripple Current Performance — Supports 10.6 A at 120 Hz and 14.84 A at 10 kHz, addressing both low‑ and high‑frequency ripple demands.
• Wide Operating Temperature — Specified for −40 °C to +105 °C operation, suitable for industrial ambient ranges.
• Long‑Life Endurance — 5000 hours of rated load life at 105 °C with DC bias plus rated ripple current, maintaining capacitance, tan δ and leakage current within specified limits after test.
• Screw Terminal, Radial Can Package — Robust screw‑terminal mounting in a radial can package for secure electrical and mechanical connection in power assemblies.
• Charge‑Discharge Endurance — Designed to withstand extensive charge‑discharge cycling (datasheet endurance test: 50 million cycles), suitable for high‑speed switching environments.
• Dielectric & Safety Characteristics — Meets insulation resistance and voltage proof criteria as specified in the product datasheet for reliable high‑voltage operation.
• RoHS Compliant — Conforms to the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Industrial Inverters and Motor Drives — Energy storage and smoothing for inverter DC links and motor drive power stages.
• AC Servomotor Regenerative Circuits — Handles high‑frequency regenerative voltages and fast charge/discharge cycles in servo systems.
• High‑Voltage Power Supplies — Bulk capacitance and ripple filtering in high‑voltage industrial power supplies.
• High‑Speed Charge/Discharge Systems — Suitable where repeated high‑speed switching and regenerative energy flow require robust cycle endurance.

Unique Advantages

• High‑Voltage, Smaller Footprint — Provides DC 525 V capability in a smaller package relative to comparable LNT family parts, enabling more compact power designs.
• Designed for High Ripple and Frequency — Specified ripple currents at 120 Hz and 10 kHz support both mains‑frequency smoothing and high‑frequency switching applications.
• Proven Endurance at Elevated Temperature — 5000‑hour rated life at 105 °C under ripple load demonstrates longevity in hot operating conditions.
• Robust Mechanical Termination — Screw‑terminal radial can package ensures reliable electrical and mechanical connections in industrial assemblies.
• Charge‑Discharge Reliability — Endurance validated over extensive charge‑discharge cycling, addressing designs with frequent voltage swings.
• Regulatory Compliance — RoHS conformity supports restricted‑substance requirements for industrial equipment.

Why Choose LNUN7272MSEHBN?

LNUN7272MSEHBN combines high voltage capability, substantial capacitance, and high ripple handling in a compact screw‑terminal aluminum electrolytic package. Its 525 V rating, specified ripple currents at both low and high frequencies, and datasheet‑specified endurance and life tests make it a practical choice for industrial inverter, motor drive and high‑frequency regenerative applications where reliability under stress is required.

This capacitor is suited for engineers specifying robust DC‑link and energy‑buffering components in power electronics systems that demand long operational life at elevated temperatures and frequent charge‑discharge cycling.

Request a quote or submit an inquiry to learn about pricing, availability, and integration support for LNUN7272MSEHBN in your next power electronics design.