LASW6181MELA40ZB

The LASW6181MELA40ZB is an aluminum electrolytic, snap‑in terminal capacitor designed for general purpose power applications. It combines a 180 µF capacitance with a 420 V rated voltage and is optimized for use in equipment exposed to voltage fluctuations.

Key value propositions include smaller case sizing with higher ripple capability versus the LAQ series, improved safety behavior under abnormal over‑voltage conditions, and extended endurance for high‑temperature ripple use (2000 hours at 105°C).

Key Features

• High voltage, high capacitance — 180 µF rated capacitance at 420 V suitable for bulk filtering and energy storage in high‑voltage power circuits.
• Snap‑in radial can package — Snap‑in terminals and radial can construction for secure PCB mounting and robust mechanical retention.
• Wide operating temperature — Rated for operation from −25°C to +105°C to support elevated ambient and internal power electronics temperatures.
• Endurance at elevated temperature — Capable of withstanding 2000 hours with rated ripple current at 105°C, meeting durable endurance requirements for continuous power applications.
• Rated ripple current — Specified ripple capability of 900 mA at 120 Hz and 1.035 A at 10 kHz; frequency coefficients apply (120 Hz = 1.00, 10 kHz or more = 1.15) to scale ripple‑current ratings by frequency.
• Improved safety features — Designed with a pressure relief vent and enhanced behavior under abnormally excessive voltage to reduce risk of dangerous failure modes.
• Capacitance tolerance and stability — ±20% tolerance at 120 Hz, 20°C; impedance and tan δ characteristics are specified across temperature ranges for predictable performance.
• RoHS compliant — Conforms to RoHS directives (2011/65/EU, (EU)2015/863).
• Compact footprint — Smaller case sizes than comparable series with dimensional footprint L: 4 cm × D: 2.5 cm for space‑constrained designs.

Typical Applications

• Power supply filtering — Bulk smoothing and ripple suppression in high‑voltage power supplies where reliable filtering under fluctuating voltages is required.
• Industrial power equipment — Energy storage and decoupling in industrial converters and power conditioners operating in environments with voltage variation.
• Inverters and motor drives — DC bus support and ripple handling in inverter and motor drive electronics that demand high ripple endurance at elevated temperatures.

Unique Advantages

• Compact high‑voltage solution: Smaller case sizes provide high capacitance at 420 V while saving PCB space compared to similar series.
• Long high‑temperature endurance: Rated to withstand 2000 hours at 105°C with rated ripple, supporting continuous operation in demanding thermal conditions.
• Predictable ripple behavior across frequency: Frequency coefficients allow designers to scale rated ripple current from low to high frequencies (e.g., 120 Hz = 1.00, 10 kHz = 1.15).
• Enhanced safety under over‑voltage: Pressure relief vent and improved safety measures reduce the likelihood of hazardous failure during abnormal voltage events.
• Wide operating range: −25°C to +105°C operating temperature range supports use in varied ambient conditions.
• Regulatory alignment: RoHS compliance simplifies material compliance for environmental requirements.

Why Choose LASW6181MELA40ZB?

LASW6181MELA40ZB delivers a compact, high‑voltage electrolytic solution for designers needing reliable bulk capacitance and ripple endurance in equipment exposed to voltage fluctuation. With 180 µF at 420 V, snap‑in mounting, and a 105°C endurance rating, it addresses long‑term thermal and ripple stresses while incorporating safety features for abnormal voltage events.

This part is suited to engineers specifying power supplies, inverters, and industrial power conditioning systems where space, ripple performance, and operational robustness are priorities. RoHS compliance and clearly documented electrical and endurance characteristics make it straightforward to evaluate for system designs.

Request a quote or contact our sales team to discuss availability, lead times, and how LASW6181MELA40ZB can fit into your next power electronics design.