LNU2W153MSEJBB

The LNU2W153MSEJBB is a screw-terminal, high-voltage aluminum electrolytic capacitor designed for industrial power applications. As a 15,000 µF, 450 V polarized capacitor rated to operate from −40 °C to +105 °C, it addresses bulk energy storage, high-speed charge/discharge and high-frequency regenerative voltage needs in inverter and motor-drive systems. Its design emphasizes high-voltage capability in a smaller footprint compared with the LNT series and meets RoHS requirements.

Key Features

• Capacitance & Voltage — 15,000 µF nominal capacitance with a rated voltage of 450 V (series rated voltage range up to DC 525 V), tolerance ±20% (120 Hz, 20 °C).
• High-Temperature Endurance — Load life of 5,000 hours at 105 °C with DC bias plus rated ripple current; after the endurance test capacitance remains within ±20% and leakage and tan δ remain within specified limits.
• High Ripple Current Capability — Handles 34.5 A at 120 Hz and 48.3 A at 10 kHz, supporting high-frequency and high-current ripple environments.
• High-Frequency / Charge-Discharge Performance — Engineered to cope with high-speed charge-discharge cycles and high-frequency regenerative voltages used in AC servomotor and inverter circuits; endurance also validated for 50 million charge-discharge cycles (3 Hz, ΔV = rated voltage ±0.3).
• Robust Construction & Termination — Screw terminal, radial can package for secure, low-impedance connections in industrial assemblies; bracket supplied separately per datasheet notes.
• Electrical Safety Characteristics — Leakage current specified as not more than 3√(C·V) µA or 5 mA (whichever is smaller) after 5 minutes at 20 °C; insulation resistance >100 MΩ at DC 500 V between terminal and bracket; withstands AC 2500 V for 1 minute with no abnormality.
• Compliance & Identification — Compliant with RoHS (2011/65/EU, (EU)2015/863); markings printed in white on black sleeve for clear component identification.

Typical Applications

• Industrial Inverters — Bulk energy storage and smoothing for inverter power supplies, supporting stable DC link voltage and inverter operation.
• AC Servomotor Regenerative Circuits — Handles high-frequency regenerative voltages and rapid charge/discharge cycles encountered in servo drive systems.
• General Motor Drives — Provides high ripple current handling and high-voltage capability for motor control and drive applications.
• High-Power Power Supplies — Suited for industrial power supplies requiring long life at elevated temperature and reliable bulk capacitance.

Unique Advantages

• High Voltage, Compact Footprint — 450 V rating for this part and series coverage up to 525 V deliver high-voltage capability in a smaller package compared with the LNT series.
• Validated High-Temperature Lifetime — 5,000-hour rated life at 105 °C under ripple conditions provides predictable long-term performance in hot industrial environments.
• Strong High-Frequency Performance — Specified ripple current at both 120 Hz and 10 kHz supports applications with significant high-frequency components.
• Durable Charge-Discharge Endurance — Endurance specification for 50 million charge-discharge cycles supports designs with frequent energy transfer events.
• Robust Electrical Isolation — High insulation resistance and voltage-proof test criteria reduce risk of terminal-to-chassis leakage and improve safety margins.
• RoHS Compliance — Fulfills RoHS directives for use in compliant industrial systems.

Why Choose LNU2W153MSEJBB?

The LNU2W153MSEJBB combines high capacitance and high-voltage capability with proven high-temperature endurance, making it well suited for demanding industrial power systems such as inverters, motor drives and regenerative circuits. Its screw-terminal radial can construction provides reliable, low-impedance connections for heavy-current applications while meeting RoHS requirements.

This part is appropriate for designers and procurement teams seeking a robust bulk energy storage capacitor with defined ripple current ratings, validated endurance and insulation characteristics—ideal for systems that require predictable performance over extended high-temperature operation.

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