LAKW6121MELB30

The LAKW6121MELB30 is a snap-in terminal aluminum electrolytic capacitor designed for general-purpose applications that require high-voltage, high-temperature endurance. It features a 120 µF capacitance at a 420 V rated voltage in a radial, can-style snap-in package.

Engineered for equipment operating in voltage-fluctuating environments, the device emphasizes extended ripple-current endurance and enhanced safety under abnormal voltage conditions while maintaining RoHS compliance.

Key Features

• Package & Mounting — Snap-in terminal, radial can package for board-mounted applications and secure mechanical retention.
• Capacitance & Voltage — 120 µF nominal capacitance with a rated voltage of 420 V and capacitance tolerance of ±20% (at 120 Hz, 20°C).
• Temperature Range & Endurance — Operating temperature range −25°C to +105°C; specified to withstand 2000 hours of rated ripple current at 105°C.
• Ripple Current Performance — Rated ripple current of 750 mA at 120 Hz and 862.5 mA at 10 kHz, supporting AC ripple handling across common frequencies.
• Electrical Characteristics — Leakage current defined by I ≤ 3√CV (µA) after 5 minutes at 20°C; tangent of loss angle (tan δ) ≤ 0.20 at 120 Hz, 20°C.
• Safety Features — Designed with improved safety for abnormally excessive voltage and a pressure relief vent that operates without producing dangerous outcomes such as flames or case dispersion under the specified test conditions.
• Size — Size dimension listed as L: 3 × D: 3 cm.
• Regulatory Compliance — Compliant with the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• General Purpose Equipment — Use where a 120 µF, 420 V polarized capacitor is required for bulk capacitance or filtering in general-purpose circuits.
• Equipment in Voltage‑Fluctuating Areas — Suited to systems that experience supply voltage variations, leveraging the capacitor’s permissible abnormal voltage handling and safety design.
• High‑Temperature Environments — Applicable in assemblies that operate up to +105°C and require endurance through long-duration ripple stress (2000 hours at 105°C).

Unique Advantages

• Extended high-temperature endurance: Qualified to withstand 2000 hours of rated ripple current at 105°C, providing predictable aging under thermal stress.
• 420 V rating with extended voltage options: Part of an extended voltage range that includes 200 V and 400 V variants, enabling higher-voltage designs.
• Quantified ripple performance: Published ripple current ratings at both 120 Hz and 10 kHz allow designers to assess AC stress handling across frequencies.
• Measurable electrical parameters: Leakage current formula and tan δ limit provide objective metrics for circuit modeling and selection.
• Built-in abnormal-voltage safety: Improved safety features and pressure relief venting reduce the risk of dangerous outcomes under specified abnormal conditions.
• RoHS conformity: Meets current RoHS requirements for materials and restricted substances.

Why Choose LAKW6121MELB30?

LAKW6121MELB30 positions itself as a robust, high-voltage aluminum electrolytic solution for designers needing reliable capacitance at 420 V with verified endurance at elevated temperatures. Its snap-in radial package, defined leakage and loss-angle limits, and published ripple-current ratings make it suitable for engineers who require quantifiable performance and safety characteristics.

The capacitor is well suited to projects and systems operating in environments where voltage fluctuation and elevated temperatures are concerns, offering a combination of long-duration ripple endurance, safety-focused design, and regulatory compliance to support predictable long-term operation.

Request a quote or submit an inquiry for LAKW6121MELB30 to receive pricing, availability, and assistance integrating this capacitor into your design.