LAK2G151MELZ45ZB

The LAK2G151MELZ45ZB is a snap‑in terminal aluminum electrolytic capacitor from Nichicon’s LAK series. It delivers 150 µF at a 400 V rating in a radial can, engineered for general‑purpose power applications and equipment operating in voltage‑fluctuating environments.

Designed for high thermal and electrical stress, this part features a 105°C permissible abnormal voltage rating, extended voltage-range support across 200 V / 400 V / 420 V family options, and safety measures for abnormally excessive voltage conditions.

Key Features

• Capacitance & Voltage — 150 µF nominal capacitance with ±20% tolerance, rated at 400 V.
• High-temperature endurance — Specified to withstand 2000 hours of rated ripple current at 105°C, suitable for sustained high‑temperature operation.
• Permissible abnormal voltage — 105°C permissible abnormal voltage design with improved safety features to mitigate effects of abnormally excessive voltage.
• Extended voltage range — LAK series supports 200 V, 400 V and 420 V ratings, offering choices across higher‑voltage systems.
• Ripple current performance — Rated ripple current: 700 mA at 120 Hz and 805 mA at 10 kHz, supporting AC ripple handling across typical power frequencies.
• Electrical characteristics — Leakage current specified as I ≤ 3√CV (µA) after 5 minutes at 20°C; tan δ ≤ 0.20 (120 Hz, 20°C).
• Package & mounting — Radial can, snap‑in terminal package; polarized construction for DC power applications. Physical size: L 4.5 × D 2.2 cm.
• Regulatory — Compliant with the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Industrial power equipment — Bulk smoothing and energy storage in power supplies used in voltage‑fluctuating industrial environments where robust ripple endurance and abnormal‑voltage safety are required.
• High‑voltage DC supplies — Filtering and decoupling in high‑voltage DC systems that require 400 V rated capacitors with strong high‑temperature performance.
• General-purpose power electronics — Use in general power circuits that demand polarized, snap‑in mounting and reliable endurance under continuous ripple stress.

Unique Advantages

• Long endurance at elevated temperature: 2000 hours at 105°C under rated ripple current reduces the need for frequent replacements in high‑stress installations.
• Designed for abnormal voltage conditions: Improved safety features and a pressure relief vent design help manage abnormally excessive voltage without dangerous failure modes.
• Clear ripple ratings across frequencies: Published ripple current values at 120 Hz and 10 kHz enable predictable thermal and ripple handling in both low‑ and high‑frequency circuits.
• Versatile voltage options: Part of an LAK series that covers 200 V, 400 V and 420 V ratings, simplifying BOM choices across related designs.
• RoHS compliant: Meets current RoHS requirements for restricted substances, supporting environmentally conscious designs.

Why Choose LAK2G151MELZ45ZB?

LAK2G151MELZ45ZB is positioned for designs that require stable capacitance at high voltage and temperature, with explicit endurance and ripple specifications to back long‑term operation. Its snap‑in radial can and polarized construction make it suitable for robust power modules and systems prone to voltage fluctuation.

Engineered by Nichicon as part of the LAK series, this capacitor blends high‑temperature endurance, clear electrical limits (leakage, tan δ, ripple), and enhanced safety behavior—delivering a practical component choice for engineers focused on reliability and predictable performance.

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