LAK2D122MELC50ZB

The LAK2D122MELC50ZB is an aluminum electrolytic capacitor in a snap‑in terminal, designed for general‑purpose power applications where voltage can fluctuate. It belongs to Nichicon's LAK series and pairs high capacitance (1.2 mF) with a 200 V rated voltage for robust bulk energy storage and smoothing.

Built for elevated operating conditions, this capacitor supports an operating temperature range of −25°C to +105°C and withstands 2000 hours of rated ripple current at 105°C. The design includes improved safety features for abnormally excessive voltage and is RoHS compliant.

Key Features

• Capacitance & Voltage — Nominal capacitance of 1.2 mF (1200 μF) with tolerance of −20% to +20% and a rated voltage of 200 V.
• High‑temperature Endurance — Endurance specified as 2000 hours at 105°C when subjected to D.C. bias plus rated ripple current; capacitance change remains within ±20% after the test.
• Ripple Current Capability — Rated ripple current handling of 2.3 A at 120 Hz and 2.76 A at 10 kHz for effective ripple absorption in power circuits.
• Safety for Abnormal Voltage — Designed with improved safety features and a pressure relief vent that operates without dangerous conditions under abnormal excessive voltage.
• Package & Mounting — Radial, can‑style snap‑in package optimized for secure chassis or board mounting in power assemblies.
• Leakage & Loss Characteristics — Leakage current specified by I ≤ 3√(C·V) μA after 5 minutes at 20°C; tangent of loss angle (tan δ) max 0.20 at 120 Hz, 20°C.
• Regulatory — Compliant with the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Voltage‑fluctuating equipment — Bulk energy storage and smoothing in equipment exposed to variable supply voltage, where the capacitor’s abnormal‑voltage safety and endurance are beneficial.
• Power supplies and converters — DC link and bulk filtering in 200 V systems that require sustained ripple handling at both low and higher frequencies.
• High‑temperature installations — Circuits operating up to 105°C where long endurance under rated ripple current is required.

Unique Advantages

• Long endurance at elevated temperature: Rated for 2000 hours at 105°C with specified limits on capacitance change and leakage, supporting longer service life in hot environments.
• Strong ripple performance: Specified ripple currents at 120 Hz and 10 kHz enable reliable ripple absorption across common power‑line and switching frequencies.
• Enhanced safety under abnormal voltage: Improved safety design and a pressure relief vent reduce the risk of dangerous failure modes when exposed to excessive voltage.
• High capacitance in a snap‑in can: 1.2 mF of capacitance in a radial snap‑in package simplifies integration for bulk filtering and energy storage.
• RoHS compliant: Meets current RoHS requirements for restricted substances, simplifying regulatory adherence for assemblies.

Why Choose LAK2D122MELC50ZB?

LAK2D122MELC50ZB offers a balance of high capacitance, robust ripple handling and elevated temperature endurance for designers building power systems that encounter fluctuating voltages and demanding thermal conditions. Its snap‑in can format and safety‑oriented construction make it suitable for rack, chassis and power module assemblies that require reliable bulk storage and smoothing.

This part is appropriate for engineers and procurement teams seeking a RoHS‑compliant, high‑capacitance electrolytic solution rated at 200 V with defined performance at 105°C. The LAK series’ extended voltage options and safety features provide a predictable component choice for sustained operation in challenging power environments.

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