LAR2W221MELA40

The LAR2W221MELA40 from Nichicon is a snap‑in, radial can aluminum electrolytic capacitor rated 220 µF at 450 V. It is designed for general‑purpose applications that require high‑voltage capacitance with durable thermal and ripple performance.

Key design attributes include snap‑in mounting for secure PCB retention, operation to 105 °C, a 2000‑hour endurance at 105 °C under rated ripple current, and RoHS compliance.

Key Features

• Capacitance & Voltage — 220 µF nominal capacitance at a rated voltage of 450 V, with a tolerance of ±20% (‑20% to +20%).
• High‑temperature Endurance — Engineered to withstand 2000 hours of rated ripple current at 105 °C, ensuring sustained performance in elevated ambient conditions.
• Overvoltage Safety — Designed to reduce short incidence when subjected to overvoltage (rated voltage × 1.5); safety testing shows pass behavior under the specified overvoltage condition.
• Ripple Current Capability — Rated ripple current of 1.05 A at 120 Hz and 1.502 A at 50 kHz for the specified part; frequency coefficients for 400/450 V models allow calculation of ripple capability across frequency.
• Electrical Characteristics — Leakage current limit defined by I ≤ 3√CV (µA) after 5 minutes at 20 °C; tan δ max 0.20 at 120 Hz, 20 °C for 450 V units.
• Temperature & Stability — Operating temperature range −25 °C to +105 °C with specified impedance stability at low temperature (Z(−25 °C)/Z(+20 °C) ≤ 8 for 400/450 V).
• Package & Mounting — Radial can, snap‑in terminal type for robust mechanical retention; typical dimensions L: 4.0 cm × D: 2.5 cm and a seated height up to 1.575 inches.
• Compliance — Compliant with the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• High‑voltage power sections — Use where 450 V rated capacitance is required for DC filtering and energy buffering in general purpose systems.
• Elevated temperature environments — Suited for designs that demand continuous operation up to 105 °C with rated ripple current endurance.
• Board‑level bulk capacitance — Snap‑in radial can provides secure mounting and reliable electrical connection for bulk smoothing on power PCBs.

Unique Advantages

• Long high‑temperature life: 2000 hours at 105 °C under rated ripple current provides predictable end‑of‑life behavior for thermal designs.
• High voltage capability: 450 V rating supports higher‑voltage system designs without requiring series stacking of capacitors.
• Overvoltage reduction of short incidence: Design and safety testing reduce the likelihood of shorting under overvoltage conditions (rated × 1.5), improving system reliability.
• Frequency‑aware ripple rating: Published ripple current values and frequency coefficients allow engineers to calculate allowable ripple across a wide frequency range.
• RoHS compliance: Meets current RoHS requirements for environmentally regulated designs.
• Secure snap‑in mounting: Snap‑in terminals enable strong mechanical retention for board‑level power components.

Why Choose LAR2W221MELA40?

The LAR2W221MELA40 combines high voltage (450 V) and substantial capacitance (220 µF) with a snap‑in radial package suited for general‑purpose power designs that operate at elevated temperatures. Its 2000‑hour endurance at 105 °C and documented ripple/frequency data give engineers the specifications needed to predict performance and lifetime under continuous thermal and ripple stress.

This part is aimed at designers who need dependable high‑voltage bulk capacitance, clear electrical limits (leakage current formula, tan δ), and secure board mounting—backed by Nichicon’s LAR series datasheet specifications and RoHS compliance.

If you would like pricing, lead time, or a formal quote for LAR2W221MELA40, please submit a request for a quote or contact sales to discuss volume, availability, and application details.