LASW6121MELZ35

The LASW6121MELZ35 is a snap-in terminal aluminum electrolytic capacitor designed for high-temperature, high-ripple applications. It delivers 120 µF at a rated voltage of 420 V in a compact radial can with snap-in mounting.

Engineered for general-purpose use and equipment operating in fluctuating-voltage environments, this part combines 105 °C endurance with improved safety features and RoHS compliance for reliable long-term performance.

Key Features

• Electrical Ratings — 120 µF capacitance at 420 V rated voltage with ±20% tolerance, polarized for DC applications.
• High-Temperature Endurance — Rated for operation from -25 °C to +105 °C with an endurance specification of 2000 hours at 105 °C under rated ripple current.
• Ripple Current Capability — Rated ripple current of 750 mA at 120 Hz and 862.5 mA at 10 kHz; frequency coefficients are provided in the datasheet for other frequencies.
• Safety Features — Snap-in terminal design with a pressure relief vent engineered to operate under abnormal voltage conditions without flames or dispersion of case pieces.
• Compact Snap-In Package — Radial, can-type snap-in mounting for secure board retention; smaller case sizes compared to LAQ series while offering higher ripple tolerance.
• Compliance — Conforms to the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Voltage-fluctuating equipment — Suited for systems in environments with variable supply voltages where improved safety against abnormal voltage is important.
• Power electronics and power supplies — Snap-in mounting and high ripple capability support use in high-ripple DC circuits and bulk energy storage on PCBs.
• General-purpose industrial systems — Designed for long-term operation at elevated temperatures common in industrial control and power conversion equipment.

Unique Advantages

• High-temperature reliability: 2000-hour endurance at 105 °C ensures stable capacitance, tan δ and leakage current after extended high-temperature operation.
• Improved safety under abnormal voltage: Pressure relief vent and safety design reduce the risk of dangerous failure modes when exposed to excessive voltage.
• Robust ripple handling: Rated ripple currents specified at 120 Hz and 10 kHz, with frequency coefficients available for other operating frequencies to aid thermal and lifetime calculations.
• Smaller footprint than comparable series: Compact radial can and snap-in mounting provide space savings on the PCB while maintaining higher ripple performance versus LAQ.
• Regulatory compliance: RoHS-compliant materials support regulatory and environmental requirements for modern electronics production.

Why Choose LASW6121MELZ35?

LASW6121MELZ35 positions itself as a reliable, compact solution for designers needing a high-voltage, high-temperature aluminum electrolytic capacitor. Its combination of 420 V rating, 120 µF capacitance, extended 105 °C endurance and enhanced safety features makes it appropriate for general-purpose and industrial designs exposed to variable voltages and elevated thermal stress.

This part suits engineers focused on durability and predictable long-term behavior: specified ripple current values, frequency coefficients, and endurance data allow straightforward thermal and lifetime planning, while snap-in packaging simplifies secure board installation.

Request a quote or submit an inquiry to our sales team to discuss pricing, availability, and how LASW6121MELZ35 can be integrated into your next design.