LAQ2D391MELZ35ZB

The LAQ2D391MELZ35ZB is an aluminum electrolytic capacitor from Nichicon’s LAQ series featuring a snap-in terminal (radial can) design. It provides 390 µF capacitance at a 200 V rated voltage and is specified for general-purpose use where high-voltage bulk capacitance and sustained ripple handling are required.

Designed for demanding operating conditions, this part combines high ripple-current capability with a long endurance rating—2000 hours at 105°C—making it suitable for power electronics and OEM applications that require durable, high-voltage capacitors in a compact snap-in package (φ22 × 35 mm).

Key Features

• Electrical rating — 390 µF capacitance with ±20% tolerance and a 200 V rated voltage, providing bulk energy storage for high-voltage circuits.
• High ripple capability — Rated ripple current of 1.35 A at 120 Hz (low frequency) and 1.62 A at 10 kHz (high frequency), enabling effective smoothing under continuous AC ripple loads.
• Low leakage — Initial leakage current specified at 0.83 mA, helping minimize standby losses in DC circuits.
• Thermal and endurance performance — Operates over –25°C to +105°C with an endurance rating of 2000 hours at 105°C (meets the LAQ series endurance criteria for capacitance, tan δ, and leakage after specified test conditions).
• Robust safety features — Pressure relief vent designed to operate under abnormal conditions to avoid dangerous outcomes, as specified in the datasheet.
• Packaging and mounting — Snap-in terminal, radial can construction in a compact φ22 × 35 mm size; supplied in tray packing for mass-production assembly.

Typical Applications

• Power supply smoothing and filtering — Bulk capacitance and 200 V rating make it suitable for smoothing DC rails and filtering high-voltage power supplies where controlled ripple handling is needed.
• Power conversion and inverters — High ripple-current ratings at both low and high frequencies support use in DC link or intermediate stages of inverters and converters.
• Industrial and OEM equipment — Robust endurance at elevated temperature and tray packing support high-volume assembly in industrial control and power electronics products.

Unique Advantages

• High-voltage bulk capacitance: 390 µF at 200 V provides substantial energy storage for high-voltage circuits without increasing footprint excessively.
• Dual-frequency ripple performance: Specified ripple current at 120 Hz and 10 kHz ensures predictable behavior across common switching and line-frequency conditions.
• Long elevated-temperature life: 2000 hours at 105°C gives designers a quantifiable endurance baseline for thermal-stressed applications.
• Compact snap-in form factor: φ22 × 35 mm radial can and snap-in terminals simplify secure PCB mounting in power assemblies.
• Low leakage current: 0.83 mA initial leakage supports lower standby loss and predictable DC performance.
• Built-in safety relief: Pressure relief vent operation reduces risk under abnormal conditions, aligning with the LAQ series safety guidance.

Why Choose LAQ2D391MELZ35ZB?

LAQ2D391MELZ35ZB is positioned for designs that need reliable, high-voltage bulk capacitance in a compact snap-in package. Its combination of 200 V rating, 390 µF capacitance, dual-frequency ripple specs, and 2000-hour endurance at 105°C provides a clear, verifiable performance profile for power-supply, converter, and industrial OEM applications.

This capacitor is well suited to engineers and procurement teams seeking a production-ready component (tray-packed) with documented thermal endurance and safety characteristics from the Nichicon LAQ series.

If you would like a quote or more information on availability and lead times for LAQ2D391MELZ35ZB, please submit a request to our sales team.