LNUN7472MSEHBB

The LNUN7472MSEHBB is an aluminum electrolytic capacitor in a screw-terminal radial can designed for high-voltage industrial power applications. It provides 4.7 mF capacitance at a rated DC voltage of 525 V with a polarized construction and screw-terminal mounting for secure connections.

Engineered for inverter and regenerative-power environments, the capacitor is specified for operation from –40 °C to +105 °C, a load life of 5000 hours at 105 °C under applied ripple current, and RoHS compliance.

Key Features

• Capacitance & Voltage: 4.7 mF (4700 µF) nominal capacitance with a rated voltage of 525 V DC; capacitance tolerance ±20% (120 Hz, 20 °C).
• High-temperature endurance: Rated for operation to +105 °C with a specified load life of 5000 hours at 105 °C under DC bias plus rated ripple current.
• Ripple current capability: 15.2 A at 120 Hz and 21.28 A at 10 kHz, supporting high-frequency charge/discharge and regenerative loads.
• Mounting & package: Screw terminal, radial can with screw terminals for robust electrical and mechanical connections; bracket supplied separately (as noted in series documentation).
• Temperature range & low-temperature behavior: Operating range –40 °C to +105 °C with an impedance ratio Z(–40 °C)/Z(+20 °C) of 8 for the 400–525 V range.
• Endurance specification: After 5000 hours at 105 °C (DC bias plus rated ripple), capacitance change ∈ ±20%, tan δ ≤ 200% of initial, and leakage current ≤ initial specified value.
• Leakage current: After 5 minutes at rated voltage, leakage current is ≤ 3√(C·V) µA or 5 mA, whichever is smaller (measured at 20 °C).
• Insulation & voltage proof: Insulation resistance >100 MΩ at DC 500 V between terminal and bracket; no abnormality at AC 2500 V for 1 minute between terminal and bracket.
• Compliance: RoHS compliant (2011/65/EU, (EU)2015/863).
• Physical dimensions: Length 18.5 cm × diameter 7.62 cm; height (seated) maximum 7.283 inch.

Typical Applications

• Industrial Inverters: DC-link filtering and energy buffering in inverter circuitry where high voltage (up to 525 V) and high ripple capability are required.
• AC Servomotor Drives: Handling high-frequency regenerative voltage and rapid charge–discharge cycles in servo motor drive systems.
• Industrial Power Supplies: Bulk energy storage and smoothing for high-voltage industrial power supplies used in manufacturing and motion control.

Unique Advantages

• High-voltage capability: Rated up to 525 V DC to support demanding DC-link and regenerative applications.
• Designed for heavy ripple and high-frequency use: Specified ripple current to 21.28 A at 10 kHz and proven charge–discharge endurance for rapid cycling.
• Extended high-temperature life: 5000-hour load life at 105 °C under ripple current extends service life in hot industrial environments.
• Robust electrical safety characteristics: High insulation resistance and AC voltage proof between terminal and bracket provide margin for insulation integrity checks.
• Screw-terminal reliability: Screw terminals and radial can package deliver secure, field-serviceable connections suitable for industrial assemblies.
• RoHS compliance: Meets current RoHS directive requirements for reduced hazardous substances.

Why Choose LNUN7472MSEHBB?

LNUN7472MSEHBB combines high capacitance with a 525 V rating and elevated ripple-current capability in a screw-terminal radial can optimized for inverter and regenerative-power designs. Its long load life at 105 °C and defined endurance limits make it suitable for designers targeting reliable, high-voltage energy storage and smoothing in industrial systems.

Choose this Nichicon LNUN7472MSEHBB part when you need a high-voltage, high-ripple-capacity electrolytic capacitor with proven endurance, secure screw-terminals, and RoHS compliance for industrial power electronics applications.

Request a quote or contact our sales team to discuss LNUN7472MSEHBB availability and suitability for your power electronics design. Provide your application requirements and quantity to receive a formal quote.