LAKW6181MELA45ZB

The LAKW6181MELA45ZB is a snap‑in terminal aluminum electrolytic capacitor from Nichicon’s LAK series, rated 180 µF at 420 V. It is designed for general‑purpose power applications and for equipment operating in environments with fluctuating voltage, offering elevated voltage capability and long high‑temperature endurance.

Packaged in a radial, snap‑in can (φ25 × 45 mm / L: 4.5 × D: 2.5 cm) and supplied in tray packing for mass production, this part balances compact footprint with robust ripple handling and safety features suited to industrial power electronics and related systems.

Key Features

• Capacitance & Voltage — 180 µF nominal capacitance with a 420 V rated voltage for higher‑voltage power systems.
• High‑temperature Endurance — Designed for 2000 hours at 105°C under rated ripple current; endurance limits include capacitance change within ±20% after the test.
• Operating Temperature Range — Specified for −25°C to +105°C to support a wide range of operational environments.
• Snap‑in Radial Package — Snap‑in terminal type in a radial can (φ25 × 45 mm) for secure PCB mounting and serviceability in power assemblies.
• Ripple Current Capability — 900 mA at 120 Hz and 1.035 A at 10 kHz, enabling effective smoothing and decoupling under continuous ripple loads.
• Electrical Characteristics — Polarized capacitor with ±20% capacitance tolerance and low loss (tan δ ≤ 0.20 at 120 Hz, 20°C).
• Leakage Current Specified — Leakage current meets I ≤ 3√(C·V) (µA) after 5 minutes at 20°C, per the series specification.
• Safety & Reliability — LAK series includes improved safety features for abnormally excessive voltage and a pressure relief vent to operate without dangerous conditions.
• Regulatory — RoHS compliant.

Typical Applications

• General‑purpose power electronics — Bulk energy storage and smoothing in AC/DC and DC/DC converter modules where durable, high‑voltage capacitors are required.
• Industrial equipment — Suitable for machinery and control systems that operate in environments with voltage fluctuations and sustained ripple currents.
• Power supply assemblies — Filtering and decoupling in high‑voltage power supplies and power conditioning units that need long high‑temperature life.

Unique Advantages

• Extended voltage capability: 420 V rating supports higher‑voltage designs without stepping up component count.
• Long high‑temperature life: 2000 hours at 105°C under rated ripple current reduces maintenance and replacement frequency in demanding applications.
• Measured ripple performance: Specified ripple current at both 120 Hz (900 mA) and 10 kHz (1.035 A) allows designers to size capacitors against real operating conditions.
• Improved safety design: Series‑level safety measures and a pressure relief vent reduce the risk of hazardous failure modes under abnormal voltage stress.
• Compact snap‑in packaging: Radial snap‑in can in a φ25 × 45 mm envelope for board stability and straightforward assembly in production environments.
• Standards‑based electrical limits: Leakage current and tan δ specifications are provided for predictable performance and easier design validation.

Why Choose LAKW6181MELA45ZB?

LAKW6181MELA45ZB is positioned for designers who need a high‑voltage, high‑endurance electrolytic capacitor in a compact snap‑in package. Its 420 V rating, defined ripple current performance, and 2000‑hour endurance at 105°C provide a clear specification set for reliable operation in general‑purpose and industrial power systems, especially where voltage fluctuation and sustained ripple are concerns.

Manufactured as part of Nichicon’s LAK series, this capacitor combines measurable electrical limits, safety features, and RoHS compliance to support long‑term robustness in production designs.

If you would like pricing or availability, please request a quote or submit an inquiry and our team will respond with the details you need.