LASW6121MELA30ZB

The LASW6121MELA30ZB is a snap-in terminal aluminum electrolytic capacitor from Nichicon's LAS series designed for general-purpose power applications. It provides 120 µF capacitance at a 420 V rating in a compact radial can snap-in package (φ25 × 30 mm).

Engineered for equipment operating in areas with fluctuating line voltage, this capacitor combines high-temperature endurance, elevated ripple-handling capability, and enhanced safety features for abnormal voltage conditions.

Key Features

• Capacitance & Voltage — 120 µF rated capacitance at 420 V, ±20% tolerance (120 Hz, 20°C).
• Snap-in Radial Can Package — Snap-in terminal type in a φ25 × 30 mm radial can for secure board mounting and robust mechanical support.
• High-Temperature Endurance — Rated to operate from −25°C to +105°C with endurance tested to 2000 hours at 105°C under DC bias plus rated ripple current.
• Elevated Ripple Current — Designed to withstand rated ripple current at 105°C; specified ripple current values include 750 mA at 120 Hz and 862.5 mA at 10 kHz (series frequency coefficients apply).
• Improved Safety for Abnormal Voltage — Series includes pressure-relief vent behavior and specified safety performance for withstanding abnormal voltages without dangerous failure modes.
• Polarized, General‑Purpose Use — Polarized capacitor suitable for a broad range of general-purpose power applications.
• RoHS Compliant — Complies with RoHS directives (2011/65/EU, (EU)2015/863).

Typical Applications

• Power supply filtering — Bulk smoothing and ripple absorption in DC power supplies where line voltage can fluctuate.
• General-purpose industrial equipment — Use in equipment requiring reliable high-voltage capacitance with extended ripple life at elevated temperatures.
• AC/DC converters and rectifier circuits — DC link and filtering duties that demand 420 V rating and sustained ripple performance.

Unique Advantages

• Long high-temperature ripple life: Rated for 2000 hours at 105°C with DC bias plus rated ripple current, providing predictable endurance under stress.
• Compact high-voltage solution: 120 µF at 420 V in a φ25 × 30 mm snap-in can delivers high voltage capability in a smaller case size compared to prior series.
• Elevated ripple-handling capability: Specified ripple currents at 120 Hz and 10 kHz demonstrate suitability for a range of switching and line-frequency conditions.
• Built-in safety considerations: Pressure-relief design and defined abnormal-voltage test conditions reduce the risk of hazardous failure modes.
• Regulatory compliance: RoHS conformity supports use in assemblies requiring restricted substance compliance.

Why Choose LASW6121MELA30ZB?

LASW6121MELA30ZB positions itself as a reliable, high-voltage electrolytic option for designers needing a compact snap-in capacitor with verified endurance at elevated temperatures. Its combination of 420 V rating, 120 µF capacitance, and tested performance under rated ripple current makes it well suited for power filtering and DC link roles in equipment exposed to voltage fluctuations.

This part is appropriate for engineers and procurement teams seeking a series-backed component with safety features for abnormal voltage conditions, clear endurance data, and RoHS compliance for long-term use in rugged power applications.

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