LGN2H121MELB30

The LGN2H121MELB30 is a snap‑in terminal aluminum electrolytic capacitor designed for general‑purpose high‑voltage applications. It delivers 120 µF capacitance at a 500 V rating in a compact, one‑rank‑smaller case than the LGU series and is specified for operation up to 105°C.

Engineered for durability under elevated temperature and ripple stress, this part withstands 3000 hours of rated ripple current at 105°C and is RoHS compliant, making it suitable for designs that require long endurance and regulatory conformity.

Key Features

• Capacitance and Voltage — 120 µF nominal capacitance with a 500 V rated voltage and ±20% tolerance at 120 Hz, 20°C.
• High‑temperature Endurance — Endurance specified: withstanding 3000 hours of rated ripple current at 105°C (meets the LGN series endurance requirement for 350–600 V parts).
• Snap‑in Radial Can Package — Snap‑in terminal, radial can package for secure mounting in power assemblies; compact dimensions L: 3 × D: 3 cm and a maximum seated height of 1.181 inch.
• Ripple Current Capability — Rated ripple current of 680 mA at 120 Hz and 972.4 mA at 100 kHz, enabling reliable AC current handling within the specified limits.
• Operating Temperature Range — Specified for −25°C to +105°C operation (applicable for 350–600 V rated parts in the LGN series).
• Electrical Stability — Leakage current meets I ≤ 3/√C (µA) after 5 minutes at 20°C; for 450–600 V range, tan δ (max.) is 0.20 at 120 Hz, 20°C.
• RoHS Compliance — Conforms to the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• General‑Purpose High‑Voltage Power Modules — Provides bulk capacitance and ripple handling in 500 V DC assemblies where a compact snap‑in aluminum electrolytic is required.
• Industrial Power Electronics — Suited to industrial systems that demand sustained performance to 105°C and long ripple endurance under continuous DC bias.
• High‑Voltage Filtering and Smoothing — Offers stable capacitance and leakage characteristics for filtering and energy smoothing in high‑voltage circuits.

Unique Advantages

• Proven 3000‑hour Ripple Endurance: Rated to withstand 3000 hours of rated ripple current at 105°C, supporting long service intervals in high‑temperature installations.
• Compact, Snap‑in Form Factor: One rank smaller case than the LGU series and snap‑in terminals simplify board layout and mechanical retention while saving PCB space.
• High‑Voltage Capability: 500 V rating with 120 µF capacitance allows designers to implement higher DC bus voltages without resorting to series stacks.
• Measured Ripple Data: Published ripple currents at 120 Hz and 100 kHz (680 mA and 972.4 mA respectively) enable predictable thermal and lifetime planning.
• Industry‑level Electrical Limits: Leakage, tan δ, and impedance stability specifications (including tan δ ≤ 0.20 for 450–600 V) give clear acceptance criteria for quality control and qualification testing.
• Regulatory Compliance: RoHS conformity supports use in regions and projects where restricted substance compliance is required.

Why Choose LGN2H121MELB30?

LGN2H121MELB30 combines a high 500 V rating with substantial capacitance (120 µF) in a compact snap‑in aluminum can optimized for elevated temperature operation. Its documented endurance—3000 hours at 105°C under rated ripple—along with specified leakage and tan δ limits, makes it a reliable option for engineers needing predictable long‑term performance in high‑voltage assemblies.

This part is suited to designers and procurement teams working on industrial power electronics, high‑voltage DC modules, and other general‑purpose applications where temperature resilience, ripple handling, and RoHS compliance are required. Its compact size and snap‑in mounting support efficient board layouts and robust mechanical retention.

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