LQR2V153MSEJBN

The LQR2V153MSEJBN from Nichicon is a screw-terminal aluminum electrolytic capacitor in the LQR series, specified at 15,000 µF and 350 V. It is engineered for high-frequency charge–discharge and energy storage in industrial power electronics, including inverters and regenerative motor drives, and for equipment operating in areas with fluctuating voltages.

Key value comes from high capacitance at a 350 V rating, high ripple-current handling, and an endurance specification engineered for sustained operation up to 85°C.

Key Features

• Capacitance & Voltage — 15,000 µF nominal capacitance rated at 350 V, with capacitance tolerance ±20% (measured at 120 Hz, 20°C).
• Screw-terminal mounting — Radial can with screw terminals for secure electrical and mechanical connections in high-current applications.
• High ripple-current capability — Specified ripple current of 40.5 A at 120 Hz and 56.7 A at 10 kHz to support high-frequency regenerative and inverter applications.
• Thermal and endurance performance — Operating temperature range −25°C to +85°C and endurance rating of 5,000 hours at 85°C under DC bias plus rated ripple current.
• Low-temperature stability — Impedance ratio Z(−25°C)/Z(+20°C) ≤ 8, supporting operation in cooler environments with defined impedance behavior.
• Leakage and loss characteristics — Leakage current specified as after 5 minutes ≤ 3√(√V) µA or 5 mA (whichever is smaller) at 20°C; tan δ and other electrical limits defined by the datasheet.
• Charge–discharge endurance — Rated to withstand 20 million charge–discharge cycles (ΔV = 0.3 × rated voltage, 3 Hz) while meeting electrical and appearance criteria.
• Regulatory — RoHS compliant (2011/65/EU, (EU)2015/863).

Typical Applications

• AC servomotor regenerative circuits — Stores and absorbs regenerative energy and supports high-frequency charge–discharge cycles in servo drives.
• General inverters and DC links — Provides bulk energy storage and ripple smoothing for inverter DC bus and power conversion stages.
• Voltage-doubler rectifier circuits — Suitable for rectifier and voltage-doubler topologies requiring high-voltage, high-capacitance components.
• Equipment in fluctuating-voltage environments — Designed for systems exposed to variable supply conditions where robust energy buffering and ripple handling are required.

Unique Advantages

• High-energy storage at 350 V: 15,000 µF capacitance provides substantial stored energy for DC bus and regenerative needs without adding system complexity.
• High ripple-current handling: Rated ripple currents at both low and high frequency (40.5 A @120 Hz, 56.7 A @10 kHz) enable reliable operation under heavy AC and PWM loading.
• Designed for repeated charge–discharge: Specified endurance of 20 million cycles for charge–discharge behavior supports applications with frequent regenerative events.
• Engineered for high-temperature endurance: 5,000 hours at 85°C under rated conditions gives predictable life performance in elevated operating temperatures.
• Screw-terminal construction: Provides secure, low-impedance connections suitable for high-current installations and straightforward mounting.
• RoHS compliance: Meets RoHS directive requirements for environmental and material compliance.

Why Choose LQR2V153MSEJBN?

The LQR2V153MSEJBN positions itself as a robust, high-capacitance solution for industrial power-electronics designs that demand substantial energy storage, high ripple handling, and proven endurance at elevated temperatures. Its screw-terminal package and defined electrical endurance make it suitable for inverter DC links, regenerative motor drives, and rectifier circuits where repeated charge–discharge cycles and voltage fluctuation are common.

Designers and procurement teams seeking long-term operational predictability benefit from the part’s documented electrical limits, thermal range, and endurance data—providing clarity for integration into systems that require reliable bulk capacitance and high ripple capability.

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