LASW6271MELC30ZB

The LASW6271MELC30ZB is a snap-in terminal type aluminum electrolytic capacitor designed for general-purpose power applications. It delivers 270 µF nominal capacitance at a 420 V rating with a compact φ35 × 30 mm can and snap-in mounting for reliable board retention.

Built for high-voltage, high-ripple environments, this capacitor offers a 105°C allowable temperature range, 2000 hours endurance at 105°C, and safety features for abnormal voltage conditions—making it suitable for equipment operating in voltage-fluctuating areas.

Key Features

• Capacitance & Voltage — 270 µF nominal capacitance at a rated voltage of 420 V with ±20% tolerance (120 Hz, 20°C).
• High-temperature Endurance — Rated for 2000 hours at 105°C when subjected to D.C. bias plus rated ripple current, with defined limits for capacitance change, tan δ and leakage current after test.
• Ripple Current Capability — Low-frequency ripple current of 1.100 A at 120 Hz and high-frequency ripple current of 1.265 A at 10 kHz, with a frequency coefficient that reaches 1.15 at 10 kHz.
• Loss and Leakage — Maximum tan δ of 0.20 (120 Hz at 20°C) and specified leakage current (1010 µA for this part as supplied).
• Safety Features — Improved safety design for abnormally excessive voltage including a pressure relief vent to operate without dangerous ignition or dispersion under test conditions.
• Package & Mounting — Snap-in radial can package for secure board mounting; tray packing and RoHS compliant.
• Operating Range & Size — Operating temperature −25°C to +105°C; physical dimensions φ35 × 30 mm (height seated max: 1.181 inches / L: 3 × D: 3.5 cm).

Typical Applications

• General-purpose power systems — Bulk energy storage and DC-link support where a 420 V, 270 µF capacitor is required for voltage stability.
• Equipment in voltage-fluctuating areas — Specifically suited for designs that must tolerate abnormal voltage events thanks to enhanced safety features and specified pressure relief performance.
• High-ripple high-voltage circuits — Handles substantial ripple currents at both low and high frequencies, supporting ripple filtering and smoothing in high-voltage applications.

Unique Advantages

• Compact high-voltage solution: 270 µF at 420 V in a φ35 × 30 mm can reduces space compared with larger formats while delivering high-voltage capability.
• Designed for sustained ripple duty: Specified 1.100 A (120 Hz) and 1.265 A (10 kHz) ripple ratings and frequency coefficients enable reliable performance across frequency ranges.
• High-temperature reliability: 2000-hour endurance at 105°C under rated ripple current preserves capacitance, dissipation factor, and leakage characteristics over time.
• Safety-minded design: Pressure relief vent and explicit safety testing at voltages above rated conditions reduce risk in abnormal voltage events.
• RoHS compliant and tray packed: Simplifies procurement and ensures environmental compliance for production use.

Why Choose LASW6271MELC30ZB?

LASW6271MELC30ZB combines high-voltage capability, strong ripple handling, and 105°C endurance in a compact snap-in aluminum electrolytic package. Its specification set—including 270 µF at 420 V, defined tan δ and leakage limits, and safety features for abnormal voltage—makes it appropriate for designers needing robust, long-life capacitors for general-purpose high-voltage applications and equipment exposed to voltage fluctuation.

This part is well suited for engineers and procurement teams seeking a reliable, RoHS-compliant electrolytic capacitor with clear endurance and ripple current specifications for sustained operation in demanding power environments.

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