LAR2D122MELB35

The LAR2D122MELB35 from Nichicon is a snap-in terminal aluminum electrolytic capacitor in the LAR series, specified for polarized, general-purpose power applications. It delivers 1.2 mF capacitance at a 200 V rated voltage in a radial can snap-in package.

Designed for demanding thermal and ripple environments, this part supports continuous operation up to 105°C with proven endurance and enhanced safety under overvoltage conditions, and it is RoHS compliant.

Key Features

• High-voltage, high-capacitance: 1.2 mF capacitance at a 200 V rated voltage suitable for bulk energy storage and DC link applications in general-purpose power circuits.
• Snap-in terminal package: Radial, can-style snap-in mounting for secure board retention and straightforward installation in power assemblies.
• 105°C endurance: Engineered to withstand 2000 hours of D.C. bias plus rated ripple current at 105°C with capacitance change within ±20% after the test.
• Ripple current capability: Rated ripple current of 2.65 A at 120 Hz and 3.975 A at 50 kHz, with frequency coefficients provided by the series for higher-frequency operation.
• Permissible overvoltage safety: Designed to reduce short incidence when overvoltage (rated voltage × 1.5) is applied; safety performance includes defined passing conditions under limited-current overvoltage tests.
• Electrical stability and loss: Capacitance tolerance of ±20% and a maximum tan δ of 0.15 for 200–400 V types (measured at 120 Hz, 20°C), ensuring predictable ESR/impedance behavior.
• Leakage current specification: Leakage current guaranteed to meet I ≤ 3√(C·V) μA after 5 minutes at 20°C (C in μF, V in V), supporting controlled insulation performance.
• RoHS compliant: Conforms to RoHS directive (2011/65/EU, (EU)2015/863), meeting environmental regulatory requirements.
• Operating temperature range: Specified for –40°C to +105°C for the 200 V family, supporting elevated-temperature designs.
• Compact footprint: Package dimensions: L: 3.5 × D: 3 cm, suitable for moderate board-area bulk-capacitance needs.

Typical Applications

• Power supply bulk smoothing: Use for energy storage and ripple smoothing on DC bus and power supply outputs where 200 V rating and high ripple capability are required.
• Industrial power electronics: Suitable for general-purpose industrial power circuits that require robust high-temperature endurance and overvoltage safety measures.
• High-frequency power stages: Fits applications with higher-frequency ripple components thanks to specified ripple current at 50 kHz and frequency coefficients for ripple rating adjustment.

Unique Advantages

• Proven high-temperature reliability: 2000-hour endurance at 105°C under rated ripple and DC bias provides long-term stability in hot operating environments.
• Improved overvoltage safety: Design and testing reduce incidence of shorts under 1.5× rated-voltage conditions and include defined pressure-relief/pass criteria.
• Predictable ripple handling: Explicit ripple current ratings at both low and high frequencies allow direct design trade-offs and accurate thermal management planning.
• Clear electrical limits: Leakage current and tan δ limits (I ≤ 3√CV μA; tan δ max. 0.15 at 200–400 V) enable precise reliability and performance calculations.
• RoHS compliance: Meets current environmental directives for restricted substances to simplify regulatory acceptance.

Why Choose LAR2D122MELB35?

LAR2D122MELB35 combines the high capacitance and 200 V rating needed for general-purpose power applications with robust thermal endurance and defined overvoltage safety behavior. Its snap-in radial can package offers a practical form factor for assemblies requiring dependable bulk capacitance and secure board mounting.

This part is well suited for engineers specifying capacitors for power supplies, industrial power electronics, and higher-frequency ripple environments who require clear electrical specifications, long-term high-temperature performance, and RoHS compliance from a reputable vendor.

Request a quote or contact sales to discuss availability, pricing, and how LAR2D122MELB35 fits your design requirements.