LAQ2G331MELC35ZB

The LAQ2G331MELC35ZB is a snap-in terminal aluminum electrolytic capacitor from Nichicon's LAQ series. It delivers 330 µF capacitance at a 400 V rating in a compact radial can with snap-in mounting, designed for general-purpose high-voltage applications.

Engineered for elevated operating conditions, this capacitor supports a wide operating temperature range and defined ripple handling, offering a balance of energy storage and thermal/endurance performance for demanding power electronics designs.

Key Features

• Capacitance & Voltage — 330 µF nominal capacitance with a 400 V rated voltage and ±20% tolerance at 120 Hz, 20°C.
• Mounting & Package — Snap-in terminal, radial can (φ35 × 35L / 3.5 × 3.5 cm) package for secure chassis or board-mounted power assemblies.
• Ripple Current Handling — Rated ripple current of 1.47 A at 120 Hz (low frequency) and 1.69 A at 10 kHz (high frequency), supporting AC ripple and smoothing duties under bias.
• Leakage Current — Initial leakage current specified at 1080 µA after rated voltage application, suitable for high-voltage DC systems where leakage is characterized.
• Thermal & Endurance — Operates from −25°C to +105°C with an endurance specification of 2000 hours at 105°C (DC bias plus rated ripple current test condition per series specification).
• Safety Design — Series safety performance includes a pressure relief vent designed to operate without hazardous outcomes under specified conditions.

Typical Applications

• High‑voltage DC systems — 400 V rating and 330 µF capacitance for energy storage, smoothing and decoupling in 400 V DC circuits.
• Power conversion and supplies — Ripple current capability at both 120 Hz and 10 kHz supports rectifier smoothing and intermediate bus filtering under DC bias.
• Industrial power assemblies — Snap-in radial can package and 105°C endurance make it suitable for compact, chassis-mounted power modules and general-purpose industrial equipment.

Unique Advantages

• High working voltage: 400 V rating enables use in elevated-voltage DC rails where substantial capacitance is required.
• Defined ripple performance: Separate low- and high-frequency ripple ratings (1.47 A @ 120 Hz, 1.69 A @ 10 kHz) allow designers to size components against expected ripple spectra.
• Long endurance at elevated temperature: 2000 hours at 105°C provides a clear operational lifetime metric for thermal-stressed designs.
• Compact snap-in packaging: φ35 × 35L radial can with snap-in terminals simplifies mounting in power assemblies while maintaining robust mechanical retention.
• Measured leakage specification: Initial leakage current of 1080 µA enables predictable bias behavior in high-voltage DC applications.

Why Choose LAQ2G331MELC35ZB?

The LAQ2G331MELC35ZB positions itself as a reliable, high-voltage aluminum electrolytic solution for general-purpose power electronics. Its combination of 400 V rating, substantial 330 µF capacitance, quantified ripple performance across frequencies, and a 2000-hour endurance at 105°C provides clear, verifiable parameters for system design and reliability planning.

This part suits designers and procurement teams specifying capacitors for high-voltage DC rails, power conversion stages, and industrial power modules that require defined thermal endurance and predictable electrical behavior from a snap-in radial package.

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