LGU1K182MELZ

The LGU1K182MELZ is a snap‑in terminal aluminum electrolytic capacitor from Nichicon’s LGU series, offering 1.8 mF (1800 µF) capacitance at an 80 V rated voltage. Designed for general‑purpose industrial and power electronics use, it combines high capacitance density with a compact snap‑in can package for panel or chassis mounting.

Key performance attributes include a wide operating temperature range of −40 °C to 105 °C, endurance of 3000 hours at 105 °C under rated ripple conditions, and RoHS compliance—making it suitable for designs that require robust long‑life bulk capacitance and reliable ripple handling.

Key Features

• Capacitance & Voltage — 1.8 mF (1800 µF) nominal capacitance with an 80 V rated voltage and ±20% tolerance for bulk energy storage and smoothing applications.
• Snap‑in Terminal Package — Radial, can-type snap‑in mounting for secure mechanical retention and straightforward assembly in tray packing.
• High‑Temperature Endurance — Specified to withstand 3000 hours of rated ripple current at 105 °C, supporting long operational life in elevated temperature environments.
• Ripple Current Performance — Low frequency ripple current of 1.83 A at 120 Hz and high frequency ripple capability of 2.104 A at 100 kHz, enabling effective filtering across a broad frequency range.
• Loss and Leakage — Dissipation factor (tan δ) of 0.20 measured at 20 °C, 120 Hz (for 80 V rating) and a measured leakage current of 1130 µA, providing predictable loss and insulation characteristics.
• Wide Temperature Range — Operating from −40 °C to 105 °C to support applications exposed to low ambient start‑up and sustained high operating temperatures.
• Compact Dimensions — Can dimensions φ22 × 35 mm (L: 3.5 × D: 2.2 cm) to save board or chassis space while delivering high capacitance.
• Regulatory Compliance — RoHS‑compliant construction for regulatory and environmental compatibility.

Typical Applications

• Power supply bulk filtering — High capacitance and 80 V rating make this capacitor suitable for smoothing and energy buffering in DC power supplies.
• DC link and intermediate storage — Endurance at 105 °C and rated ripple current performance support intermediate energy storage and DC link roles in power conversion equipment.
• Industrial and commercial electronics — General purpose use where long life, high ripple capability, and a compact snap‑in package are required.

Unique Advantages

• Long rated endurance: 3000 hours at 105 °C under rated ripple current provides predictable lifetime behavior for maintenance planning and reliability assessments.
• Broad ripple handling: Specified ripple current at both low (120 Hz) and high (100 kHz) frequencies supports multi‑frequency filtering needs in power systems.
• High capacitance in a compact can: 1.8 mF in a φ22 × 35 mm can offers substantial bulk capacitance while minimizing occupied volume.
• Stable dissipation characteristics: A tan δ of 0.20 at 20 °C, 120 Hz (80 V) gives designers a clear expectation of dielectric losses for thermal and efficiency calculations.
• Regulatory readiness: RoHS compliance simplifies integration into environmentally regulated products and supply chains.

Why Choose LGU1K182MELZ?

LGU1K182MELZ delivers a balanced combination of high capacitance, elevated voltage rating, and proven thermal endurance in a snap‑in can suitable for robust industrial and power electronic systems. Its specified ripple current performance across low and high frequencies, coupled with 3000‑hour endurance at 105 °C, makes it a reliable choice where sustained thermal and electrical stress are factors.

This part is well suited for engineers specifying bulk filtering, DC link energy storage, or general‑purpose smoothing in designs that demand long service life, clear electrical characteristics, and a compact, mechanically secure snap‑in package.

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