LQR2W182MSEGBB

The LQR2W182MSEGBB is a screw‑terminal aluminum electrolytic capacitor rated at 1800 µF and 450 V, designed for power‑electronics applications requiring high voltage handling and high‑frequency charge/discharge performance. Its radial can with screw terminals and polarized construction make it suitable for industrial inverters, AC servomotor regenerative circuits, and rectifier/voltage‑doubler stages.

Key value propositions include high ripple current capability at both low and high frequencies, a 5000‑hour endurance at 85°C under rated conditions, and RoHS compliance for environmentally conscious designs.

Key Features

• Capacitance and Voltage — 1.8 mF (1800 µF) nominal capacitance with a 450 V rated voltage and ±20% tolerance at 120 Hz, 20°C.
• Screw Terminal Mounting — Radial can package with screw terminals provides secure, high‑current connections for power systems.
• High‑Frequency Performance — Rated ripple current of 11.06 A at 10 kHz and 7.9 A at 120 Hz with an ESR of 150 mΩ at 120 Hz, supporting fast charge/discharge demands.
• Temperature and Endurance — Operating range −25°C to +85°C with 5000 hours endurance at 85°C under DC bias plus rated ripple current; meets specified limits for capacitance change, tan δ, and leakage after test.
• Charge‑Discharge Robustness — Endurance of charge‑discharge behavior: tested to 20 million cycles (ΔV = rated voltage × 0.3, 3 Hz) at room temperature while maintaining specified electrical characteristics.
• Leakage and Low‑Temperature Stability — Leakage current limit after 5 minutes per datasheet (≤ 3√(√V) µA or 5 mA, whichever is smaller at 20°C); impedance ratio Z(−25°C)/Z(+20°C) ≤ 8.
• RoHS Compliant — Meets the RoHS directive (2011/65/EU, (EU)2015/863).
• Package Dimensions — Radial can with screw terminals; nominal body dimensions L: 8 cm × D: 6.35 cm.

Typical Applications

• AC Servomotor Regeneration — Handles high‑frequency regenerative voltages in servo drives to stabilize DC bus and support frequent charge/discharge cycles.
• General Inverters — Used in inverter DC link and smoothing stages where high voltage rating and ripple handling are required.
• Rectifier / Voltage Doubler Circuits — Suitable for rectifier circuits and voltage‑doubler topologies that require large capacitance at high voltage.
• Equipment in Fluctuating Voltage Environments — Designed for systems exposed to variable supply conditions, providing endurance under DC bias plus ripple stress.

Unique Advantages

• High Ripple‑Current Capability: Supports 11.06 A at 10 kHz and 7.9 A at 120 Hz, enabling reliable operation in high‑frequency power stages.
• Proven Endurance: 5000 hours at 85°C under rated conditions with defined limits for capacitance, tan δ and leakage ensures predictable long‑term behavior.
• Robust Charge‑Discharge Life: Validated for 20 million charge/discharge cycles (ΔV = 0.3 × rated, 3 Hz), beneficial for applications with frequent regenerative events.
• Secure Mechanical Connections: Screw‑terminal radial can simplifies high‑current wiring and improves mechanical reliability in industrial assemblies.
• Wide Operating Range: −25°C to +85°C operating temperature and low‑temperature impedance stability (Z(−25°C)/Z(+20°C) ≤ 8) for varied environmental conditions.
• Regulatory Compliance: RoHS conformity supports deployment in markets requiring restricted‑substance compliance.

Why Choose LQR2W182MSEGBB?

The LQR2W182MSEGBB is positioned for engineers designing industrial power electronics who need a high‑voltage electrolytic capacitor with strong high‑frequency ripple handling, long endurance under rated stress, and robust mechanical terminal connections. Its combination of 1800 µF at 450 V, validated charge/discharge cycling, and defined endurance characteristics makes it a practical choice for inverter DC links, regenerative drives, and rectifier circuits exposed to fluctuating voltages.

For teams prioritizing predictable electrical aging, secure installation, and RoHS compliance, this part delivers clearly specified performance and lifecycle data to inform system design and procurement decisions.

Request a quote or submit an inquiry for LQR2W182MSEGBB to discuss pricing, availability, and application support for your project.