LAS2W121MELB25

The LAS2W121MELB25 is a snap‑in terminal aluminum electrolytic capacitor specified for 450 V and 120 µF with ±20% tolerance. Designed for general‑purpose power applications, it offers high operating temperature capability (‑25 °C to 105 °C) and a compact radial can snap‑in package (φ30 × 25 mm).

Its design targets equipment that experiences voltage fluctuation and demanding ripple conditions, combining extended endurance at elevated temperature with safety features for abnormal excessive voltage.

Key Features

• Electrical Ratings — 120 µF nominal capacitance at a 450 V rated voltage with ±20% tolerance (measured at 120 Hz, 20 °C).
• High Temperature Endurance — Rated for operation from ‑25 °C to 105 °C with an endurance specification of 2000 hours at 105 °C under DC bias plus rated ripple current.
• Ripple Current Capability — Rated ripple current values include 770 mA at 120 Hz and 885.5 mA at 10 kHz, supporting applications with substantial AC ripple loading.
• Safety Features — Includes a pressure relief vent and design provisions for permissible abnormal voltage to mitigate hazardous failure modes during excessive voltage conditions.
• Mechanical & Mounting — Snap‑in radial can package (φ30 × 25 mm) for robust board attachment and straightforward assembly in power electronics layouts.
• Loss and Leakage — Loss tangent (tan δ) specified at 0.20 max (120 Hz, 20 °C); leakage current defined per the series specification after rated voltage application.
• RoHS Compliant — Conforms to applicable RoHS requirements.

Typical Applications

• Power supplies and converters — Bulk smoothing and energy storage in high‑voltage power conversion stages where 450 V rating and high ripple capacity are required.
• Industrial equipment — Support for systems operating in environments with fluctuating supply voltages, leveraging the series’ permissible abnormal voltage and safety vent features.
• High‑temperature installations — Capacitor applications requiring reliable operation up to 105 °C and endurance under continuous ripple stress.
• General‑purpose high‑voltage circuits — Where compact, snap‑in mounting and stable capacitance across temperature are needed for board‑level power designs.

Unique Advantages

• 450 V rating for high‑voltage applications — Enables use in systems that require elevated DC bus voltages without up‑rating components.
• Designed for elevated temperature endurance — 2000 hours at 105 °C under rated ripple current supports longer service life in hot operating environments.
• High ripple current handling — Specified ripple current at multiple frequencies helps reduce capacitor heating and supports higher AC loading in converters and supplies.
• Compact snap‑in package — Smaller case dimensions combined with secure snap‑in mounting simplify integration into dense power assemblies.
• Enhanced safety design — Pressure relief vent and abnormal voltage considerations reduce the risk of dangerous failure modes under stress conditions.
• RoHS compliance — Meets environmental directive requirements for restricted substances.

Why Choose LAS2W121MELB25?

LAS2W121MELB25 positions itself as a compact, durable solution for engineers specifying high‑voltage bulk capacitance with elevated temperature endurance and defined ripple capability. Its combination of 450 V rating, 120 µF capacitance, snap‑in radial can package, and safety features makes it well suited for industrial power supplies, high‑voltage converters, and equipment subjected to fluctuating voltages.

For designs that require predictable aging and endurance behavior, the part’s 2000‑hour 105 °C endurance rating and clear electrical parameters help simplify lifecycle planning and reliability assessments.

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