LAK2G680MELB20

The LAK2G680MELB20 is a snap‑in terminal aluminum electrolytic capacitor rated at 400 V and 68 µF with ±20% tolerance. It is a radial, can‑type, polarized capacitor designed for general‑purpose electronic equipment, with features targeted at circuits exposed to fluctuating supply voltages.

Key design priorities are high‑temperature endurance and safety under abnormal voltage conditions: the part is specified for operation to 105°C, withstanding 2000 hours of rated ripple current at 105°C, and includes improved safety features for excessive voltage events. The device is RoHS compliant.

Key Features

• Capacitance & Voltage: 68 µF rated capacitance at 400 V with ±20% tolerance.
• High‑temperature endurance: Rated for operation up to 105°C and specified to withstand 2000 hours of rated ripple current at 105°C.
• Snap‑in radial can package: Snap‑in terminal mounting for secure PCB assembly; package dimensions L: 2 cm × D: 3 cm.
• Ripple current capability: Specified ripple current of 500 mA at 120 Hz and 575 mA at 10 kHz under rated conditions.
• Leakage and dissipation control: Leakage current specified as I ≤ 3√CV (µA) after 5 minutes at 20°C; tan δ ≤ 0.20 at 120 Hz, 20°C.
• Extended voltage family: Part of a series offering 200 V, 400 V and 420 V options to match application requirements.
• Safety performance: Pressure relief vent designed to operate under abnormal voltage without flames, ignition, or dispersion of parts; safety test limits are specified for the series.
• Environmental compliance: Compliant with RoHS directives (2011/65/EU, (EU)2015/863).

Typical Applications

• General‑purpose electronic equipment — Suitable for circuits requiring a polarized aluminum electrolytic capacitor with high voltage rating and general‑purpose performance.
• Equipment exposed to fluctuating supply voltage — Designed and tested for improved safety and endurance when subject to abnormal or fluctuating voltages.
• High‑temperature operating environments — Intended for use where ambient or internal temperatures approach 105°C and long ripple‑current endurance is required.

Unique Advantages

• High‑voltage capability: 400 V rating (with 200 V and 420 V family options) provides flexibility for higher‑voltage DC systems.
• Verified ripple endurance at 105°C: Withstands 2000 hours of rated ripple current at the maximum operating temperature, supporting long service life under thermal stress.
• Defined ripple and dissipation specs: Published ripple current values at 120 Hz and 10 kHz plus tan δ and leakage limits allow predictable thermal and electrical design margins.
• Improved safety under abnormal voltage: Pressure relief vent and series safety tests reduce risk of dangerous failure modes during overvoltage events.
• PCB‑friendly snap‑in format: Radial snap‑in can provides a mechanically robust mounting option for through‑hole assemblies.
• RoHS compliant: Meets current RoHS directives for restricted substances.

Why Choose LAK2G680MELB20?

LAK2G680MELB20 combines a high 400 V rating with a compact snap‑in radial can and robust 105°C endurance, making it suitable for general‑purpose designs that require reliable high‑voltage capacitance and withstand fluctuating supply conditions. Its published endurance, leakage and tan δ characteristics let engineers size thermal and electrical margins with confidence.

This part is appropriate for designers seeking a RoHS‑compliant, snap‑in aluminum electrolytic capacitor with defined safety behavior under abnormal voltage and long‑term ripple current capability at elevated temperature.

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