LAQ2G181MELB30ZB

The LAQ2G181MELB30ZB from Nichicon is a snap‑in terminal aluminum electrolytic capacitor providing 180 µF capacitance at a 400 V rating. It is engineered for general-purpose power applications that require high-voltage bulk capacitance and robust thermal endurance.

Designed as a radial, can-type snap‑in package (φ30 × 30 mm), this part combines a high 400 V rating, a wide operating temperature range up to 105°C, and defined ripple-current capability for use in high-voltage power circuits and DC filtering applications.

Key Features

• Electrical Core — 180 µF capacitance with ±20% tolerance at 120 Hz, 20°C, and a rated voltage of 400 V for high-voltage bulk capacitance needs.
• Loss and Leakage — Tangent of loss angle (tan δ) ≤ 0.20 (120 Hz, 20°C); leakage current defined as I ≤ 3√C µA after 5 minutes' application of rated voltage at 20°C.
• Thermal and Endurance — Operates from −25°C to +105°C with an endurance rating of 2000 hours at 105°C under D.C. bias plus rated ripple current; capacitance change within ±20% and leakage current within initial specified value after endurance test.
• Ripple Current Capability — Specified ripple handling of 950 mA at 120 Hz and 1.093 A at 10 kHz to support smoothing and filtering under typical AC/DC conditions.
• Package & Mounting — Radial can, snap‑in terminal type (φ30 × 30 mm) for secure, productivity‑friendly board mounting and tray packing for mass production.
• Safety Performance — Pressure relief vent designed to operate under abnormal conditions without flames or dispersion of parts, per series safety performance information.

Typical Applications

• General-purpose power circuits — Provides bulk capacitance and energy buffering where a 400 V rating and 180 µF are required.
• High-voltage DC filtering — Suitable for smoothing and ripple reduction on 400 V DC buses given the rated voltage and specified ripple currents.
• Power supply bulk storage — Used where compact, snap‑in mounted bulk capacitance with 105°C endurance is needed for sustained operation.

Unique Advantages

• High working voltage (400 V): Enables use on elevated DC bus rails without the need for series stacking of lower‑voltage parts.
• Robust thermal endurance: 2000 hours at 105°C under rated stress provides a measurable lifetime benchmark for high‑temperature applications.
• Defined ripple performance: Rated ripple currents at 120 Hz and 10 kHz allow designers to match the capacitor to expected operating ripple conditions.
• Compact snap‑in package: φ30 × 30 mm radial can with snap‑in terminals simplifies board assembly and mechanical retention in high‑volume production.
• Controlled loss and leakage: tan δ ≤ 0.20 and a defined leakage current formula (I ≤ 3√C µA) support predictable circuit behavior and power loss budgeting.
• Built‑in safety venting: Pressure relief vent design reduces risk during abnormal conditions by minimizing dangerous outcomes such as flame or part dispersion.

Why Choose LAQ2G181MELB30ZB?

The Nichicon LAQ2G181MELB30ZB positions itself as a reliable, high‑voltage aluminum electrolytic solution for designs that need 180 µF at 400 V with proven thermal endurance to 105°C. Its snap‑in radial package and defined ripple specifications make it appropriate for general‑purpose power circuitry and DC bus applications where compact bulk capacitance and durability are priorities.

Engineers and procurement teams seeking a production‑ready capacitor with clear endurance, leakage, and ripple specifications will find this part suited to long-term deployment in high‑voltage power systems, along with the manufacturing convenience of tray packing for mass production.

Request a quote or contact sales to discuss availability, lead times, and pricing for the LAQ2G181MELB30ZB.