LAKW6680MELZ30ZB

The LAKW6680MELZ30ZB from Nichicon is a snap-in terminal aluminum electrolytic capacitor in the LAK series, rated 420 V with 68 µF capacitance and ±20% tolerance. It is engineered for high-voltage, general-purpose power applications where stable ripple endurance and enhanced safety under abnormal voltage conditions are required.

Designed for operation from −25°C to +105°C, this capacitor withstands 2000 hours of rated ripple current at 105°C and includes safety measures for abnormally excessive voltage, making it suitable for equipment used in voltage-fluctuating environments. The part is RoHS compliant.

Key Features

• Capacitance and Voltage — 68 µF nominal capacitance at a rated voltage of 420 V with ±20% tolerance for high-voltage smoothing and energy buffering.
• High-temperature endurance — Rated for operation up to 105°C with an endurance specification of 2000 hours at 105°C under D.C. bias plus rated ripple current.
• Ripple current capability — Specified ripple handling of 450 mA at 120 Hz and 517.5 mA at 10 kHz to support power-supply filtering across common frequencies.
• Safety features — Improved safety design for abnormally excessive voltage and a pressure relief vent that operates without dangerous conditions such as flames or case dispersion.
• Electrical stability — Leakage current specified by I ≤ 3√(C·V) μA after 5 minutes at 20°C; tangent of loss angle (tan δ) ≤ 0.20 at 120 Hz, 20°C.
• Package and mounting — Snap-in terminal type in a radial can package for secure, upright board mounting; physical size approximately L: 3 × D: 2.2 cm.
• Regulatory — Compliant with the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• High-voltage power supplies — Filtering and smoothing in 200–420 V DC power rails where 420 V rating and specified ripple capability are required.
• Industrial equipment — Energy buffering and decoupling for systems operating in voltage-fluctuating environments, leveraging the 105°C endurance and 2000-hour ripple qualification.
• Power conversion stages — DC-link and bulk capacitance in converters and inverters that need high-voltage capacitors with defined leakage and loss characteristics.
• General-purpose electronics — Applications requiring robust, high-voltage electrolytic capacitors with snap-in mounting for easy installation and mechanical stability.

Unique Advantages

• High-voltage capability: 420 V rating supports applications up to the extended LAK series voltage range (200 V, 400 V, 420 V).
• Proven thermal endurance: Qualified for 2000 hours at 105°C under rated ripple current, providing predictable life behavior in hot operating environments.
• Frequency-flexible ripple handling: Ripple specifications at 120 Hz and 10 kHz help designers evaluate performance across low- and high-frequency power stages.
• Safety-focused design: Pressure relief vent and improved safety features reduce risk during abnormal over-voltage events, aiding system reliability.
• Clear electrical specifications: Defined leakage-current formula (I ≤ 3√CV) and tan δ limit (0.20 max) allow straightforward verification in design and qualification.
• RoHS compliance: Meets restriction of hazardous substances requirements for regulatory-driven product designs.

Why Choose LAKW6680MELZ30ZB?

LAKW6680MELZ30ZB positions itself as a robust, high-voltage electrolytic capacitor for designers who need defined ripple endurance, thermal stability, and enhanced safety in voltage-fluctuating environments. Backed by Nichicon’s LAK series specifications, it provides engineers with clear, measurable electrical and reliability characteristics for system-level design decisions.

This part is well suited for industrial and power-electronics applications where a combination of 420 V rating, snap-in mounting, and long-term ripple qualification simplify BOM selection and support long-term system robustness and maintainability.

Request a quote or submit a request for pricing and availability to evaluate LAKW6680MELZ30ZB for your next high-voltage power design.