LASW6181MELB30ZB

The LASW6181MELB30ZB is a snap-in terminal aluminum electrolytic capacitor specified at 180 µF and 420 V, designed for general-purpose high-voltage applications. It offers a compact radial can package (φ30 × 30L) with snap-in mounting and is optimized for equipment operating in voltage-fluctuating environments.

Built to withstand elevated operating conditions, this capacitor is rated for operation from −25 °C to +105 °C and demonstrates endurance under rated ripple current for 2000 hours at 105 °C. The design includes improved safety features for abnormally excessive voltage and is RoHS compliant.

Key Features

• Capacitance and Voltage — 180 µF nominal capacitance with a 420 V rated voltage and ±20% tolerance, suitable for high-voltage circuit requirements.
• Snap-In Radial Can Package — Radial, can-style snap-in mounting for secure board retention and straightforward assembly in power modules and rack-mounted equipment.
• High-Temperature Endurance — Specified endurance of 2000 hours at 105 °C when subjected to DC bias plus rated ripple current; capacitance change and leakage are guaranteed within endurance limits.
• Elevated Ripple-Current Capability — Rated ripple current of 900 mA at 120 Hz and 1.035 A at 10 kHz, with frequency coefficients provided to scale ripple performance across operating frequencies.
• Safety Performance — Pressure relief vent and improved safety measures for abnormal over-voltage conditions; safety test conditions and limited DC current ratings are defined in the series datasheet.
• Operating Range — Operational temperature range from −25 °C to +105 °C for use in warm operating environments.
• RoHS Compliant — Conforms to RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• General-purpose high-voltage circuits — For designs that require 420 V rated capacitance with reliable performance in variable-line conditions.
• Equipment in voltage-fluctuating environments — Suited to systems where supply voltage can vary, benefiting from the capacitor’s over-voltage safety features.
• Industrial assemblies requiring high-temperature endurance — Components and modules operating up to 105 °C where long-duration ripple performance is required.

Unique Advantages

• Compact high-voltage solution: 180 µF at 420 V in a smaller φ30 × 30L package offers space-efficient bulk capacitance for high-voltage designs.
• High ripple-current handling: 900 mA (120 Hz) and 1.035 A (10 kHz) ratings with documented frequency coefficients allow designers to size capacitors confidently for ripple duty.
• Proven high-temperature endurance: 2000 hours at 105 °C under rated ripple and DC bias provides predictable ageing behavior for long-term designs.
• Enhanced safety characteristics: Pressure relief vent and tested safety performance for abnormal voltage conditions reduce risk in fluctuating-line applications.
• Regulatory compliance: RoHS conformity simplifies environmental compliance for assembled products.

Why Choose LASW6181MELB30ZB?

LASW6181MELB30ZB targets designers who need a reliable, compact aluminum electrolytic capacitor for 420 V systems where temperature and ripple endurance matter. Its combination of 180 µF capacitance, high ripple-current capability, extended 105 °C endurance, and enhanced safety features makes it a practical choice for general-purpose high-voltage equipment and applications exposed to supply fluctuations.

Backed by Nichicon series specifications and RoHS compliance, this part offers a clear specification set for procurement and design validation, supporting robust, long-term use in demanding operating environments.

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