LQR2W152MSEF

The LQR2W152MSEF is a screw‑terminal aluminum electrolytic capacitor designed for high‑voltage DC link and power electronics applications. It delivers 1.5 mF of capacitance at a 450 V rating in a radial can with screw terminals, optimized for systems requiring robust high‑frequency charge‑discharge performance.

Targeted at industrial power conversion and inverter systems, this capacitor combines a 85°C rated endurance of 5,000 hours, measured low loss (tanδ 0.15), and high ripple current capability to support applications such as motor drives, inverters and voltage‑doubler rectifiers where voltage fluctuation and regenerative currents are present.

Key Features

• Capacitance & Voltage — 1.5 mF (1500 µF) nominal capacitance with a 450 V rated voltage and ±20% tolerance at 120 Hz, 20°C.
• Low Loss — Specified tangent of loss angle (tanδ) of 0.15, supporting reduced dissipation under AC excitation.
• High Ripple Current Capability — Rated ripple current of 6.3 A at 120 Hz and 8.82 A at 10 kHz to handle high‑frequency ripple in power electronics.
• Endurance & Charge‑Discharge Life — Endurance of 5,000 hours at 85°C under DC bias plus rated ripple current; proven charge‑discharge endurance withstanding 20 million cycles (ΔV = rated × 0.3, 3 Hz) at room temperature.
• Robust Screw‑Terminal Construction — Radial can with screw terminals and M5 nominal bolt diameter for secure, low‑impedance connections suited to heavy current applications.
• Operating Range & Dimensions — Rated for −25°C to +85°C operation; physical size φ51 × 100 mm (L: 10 × D: 5.1 cm), supplied in cardboard packing and available for mass production.
• Leakage Current Specification — After 5 minutes' application of rated voltage, leakage current is limited to ≤ 3√V (µA) or 5 mA, whichever is smaller (measured at 20°C).
• Regulatory Compliance — RoHS compliant.

Typical Applications

• Industrial Motor Drives — Supports high‑frequency regenerative voltage in AC servomotor and inverter DC link circuits to stabilize the power bus during braking and regeneration.
• General Inverters — Provides bulk energy storage and high ripple handling for inverter front ends exposed to fluctuating DC voltages.
• Voltage Doubler Rectifiers — Suited for rectifier circuits using voltage doubling where high DC voltage and reliable charge‑discharge behavior are required.
• Power Conversion Equipment — Useful in systems operating in areas with voltage fluctuations that need robust, long‑life capacitive smoothing and transient energy absorption.

Unique Advantages

• High‑Voltage Capability: 450 V rating enables use in demanding DC link and HV rectifier topologies without additional series stacking.
• Long Endurance at Elevated Temperature: 5,000‑hour rated life at 85°C provides predictable aging behavior for extended deployments.
• Measured Low Loss (tanδ 0.15): Tangent of loss angle specified to help minimize internal heating under AC excitation.
• Designed for High Ripple Environments: Rated ripple currents at both low and high frequencies (6.3 A at 120 Hz, 8.82 A at 10 kHz) support fast switching power stages.
• Secure Mechanical and Electrical Connection: Screw‑terminal (M5) design simplifies installation and ensures reliable, low‑impedance power connections in heavy‑current assemblies.
• Series Proven Reliability: Meets series endurance and charge‑discharge specifications, including 20 million charge‑discharge cycles at specified test conditions.

Why Choose LQR2W152MSEF?

The LQR2W152MSEF is positioned for engineers designing high‑voltage power electronics who require a durable, high‑capacitance solution with proven endurance. Its combination of a 450 V rating, 1.5 mF capacitance, controlled loss characteristics (tanδ 0.15) and strong ripple current performance makes it a practical choice for inverter DC links, motor drives and rectifier circuits exposed to fluctuating voltages and regenerative currents.

Manufactured for mass production and RoHS compliant, this screw‑terminal capacitor offers straightforward mechanical integration (φ51 × 100 mm, M5 terminals) and predictable performance over long operating periods at elevated temperature, helping reduce redesign risk and support reliable system operation.

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