LQR2W152MSEFBN

The LQR2W152MSEFBN is an aluminum electrolytic capacitor in a screw-terminal radial can designed for high-voltage power applications. It delivers 1.5 mF capacitance at a 450 V rating with a screw-terminal mounting style for secure, high-current connections.

Targeted for power-electronics use, this part is suited for high-frequency regenerative voltage in AC servomotors and general inverters, rectifier circuits such as voltage doublers, and equipment operating in fluctuating-voltage environments. Its combination of high voltage, substantial capacitance, and measured ripple capability supports robust energy buffering and filtering in demanding systems.

Key Features

• Capacitance & Voltage — 1.5 mF (1500 µF) nominal capacitance rated for 450 V DC with ±20% tolerance at 120 Hz, 20°C.
• Screw-Terminal Package — Radial, can-style capacitor with screw terminals for secure electrical and mechanical connection suitable for high-current bus applications.
• Ripple Current Performance — Rated ripple current of 6.3 A at 120 Hz and 8.82 A at 10 kHz, enabling effective smoothing and charge/discharge handling across low and high frequency ranges.
• Endurance & Charge-Discharge Reliability — Designed for 5000 hours at 85°C under DC bias plus rated ripple current; meets charge-discharge endurance after 20 million cycles (ΔV = rated × 0.3, 3 Hz) with defined limits on capacitance change, tan δ, and leakage current.
• Operating Temperature Range — Specified for operation from −25°C to +85°C with low-temperature impedance stability (Z(−25°C)/Z(+20°C) ≤ 8).
• Loss Tangent (tan δ) — Specified tan δ (DF) value of 0.15 for this part, with endurance limits defined in the datasheet.
• Physical Size — Body dimensions: L: 10 × D: 5.1 cm; Height seated maximum 3.937 inch. Radial can with screw terminals and M5-compatible terminal hardware for the indicated diameter class.
• Regulatory — RoHS compliant.

Typical Applications

• AC Servo and Motor Drives — Energy buffering and regenerative voltage handling in servo systems where high DC bus voltage and reliable charge/discharge cycles are required.
• Inverters and Power Conversion — DC-link smoothing and transient energy storage in general inverter topologies operating at voltages up to 450 V.
• Rectifier and Voltage-Doubler Circuits — Bulk capacitance for rectifier stages and voltage-doubler arrangements that require stable high-voltage capacitance.
• Equipment in Fluctuating-Voltage Environments — Stabilization and filtering where input or system voltages vary, leveraging the part’s rated endurance under bias and ripple conditions.

Unique Advantages

• High-Voltage Energy Storage: 450 V rating with 1500 µF capacitance provides substantial DC-bus energy storage for power-electronics systems.
• Broad Ripple Capability: Specified ripple currents at both 120 Hz and 10 kHz allow designers to account for low- and high-frequency ripple in filtering and regenerative circuits.
• Long Endurance at Elevated Temperature: 5000 hours at 85°C under rated conditions supports sustained duty in thermal environments common to power converters.
• Robust Mechanical Termination: Screw terminals and radial can construction facilitate secure, low-impedance connections for high-current installations.
• Defined Charge-Discharge Qualification: Tested for 20 million charge-discharge cycles (ΔV = rated × 0.3) to validate performance in cycling applications.
• RoHS Compliance: Meets RoHS directive requirements for reduced hazardous substances.

Why Choose LQR2W152MSEFBN?

The LQR2W152MSEFBN positions itself as a reliable high-voltage bulk capacitor for designers of power electronics who need substantial capacitance, robust ripple handling, and validated endurance under biased, thermally stressed conditions. Its screw-terminal radial can form factor simplifies integration into DC-link and energy-storage locations where secure electrical connections and serviceability matter.

This part is well suited for engineers building inverters, motor drives, rectifier stages, and other systems that operate up to 450 V and demand long-term stability across temperature and repeated charge-discharge cycles. The documented endurance and ripple specifications help reduce validation time and support predictable system behavior over the capacitor’s rated life.

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