LGU2E181MELY

The LGU2E181MELY is a snap-in terminal aluminum electrolytic capacitor from Nichicon's LGU series, rated for 250 V and 180 µF with ±20% tolerance. Designed as a 105°C standard snap-in can, it targets general-purpose applications that require high-voltage bulk capacitance, defined ripple handling, and long endurance.

Key value points include a 3000-hour endurance at 105°C under rated ripple conditions, low loss (tanδ 0.15 at 20°C, 120 Hz), and specified ripple-current ratings across low and high frequencies—providing predictable performance for sustained high-temperature operation.

Key Features

• Rated Value — 180 µF nominal capacitance at 250 V DC with ±20% tolerance, suitable for designs needing bulk energy storage at elevated voltages.
• High-temperature Endurance — Specified for 3000 hours at 105°C with application of rated DC bias plus rated ripple current, ensuring long-term stability under thermal stress.
• Ripple Current Capability — 900 mA ripple current at 120 Hz (low frequency) and 1.35 A at 100 kHz (high frequency), enabling effective smoothing and ripple handling across a wide frequency range.
• Frequency Coefficients for 160–250 V Range — Ripple-current frequency coefficients for 160–250 V: 50 Hz = 0.81, 60 Hz = 0.85, 120 Hz = 1.00, 300 Hz = 1.17, 1 kHz = 1.32, 10 kHz = 1.45, 50 kHz or more = 1.50, allowing predictable scaling of ripple capability with frequency.
• Low Dissipation Factor — tanδ (loss tangent) max 0.15 at 20°C and 120 Hz for the 250 V rating, supporting lower AC loss in applications where efficiency and heat are considerations.
• Controlled Leakage — Specified leakage current of 630 µA, with datasheet leakage characterization and end-of-life limits defined by Nichicon.
• Robust Packaging & Mounting — Snap-in, radial can package (φ20 × 30 mm) designed for secure PCB mounting; tray packing and mass production availability streamline assembly and procurement.
• Regulatory — RoHS compliant per product documentation.

Typical Applications

• Power-supply filtering — Bulk smoothing and ripple suppression in DC power supplies requiring 250 V rated capacitance and sustained ripple handling at elevated temperatures.
• Industrial power electronics — General-purpose energy storage and decoupling where 105°C endurance and defined ripple-current capability are required.
• General-purpose circuits — Applications that need reliable high-voltage capacitors with predictable loss characteristics and controlled leakage over long operating life.

Unique Advantages

• Long, defined endurance: 3000 hours at 105°C under rated ripple ensures predictable life performance for high-temperature deployments.
• Wide frequency ripple support: Explicit ripple ratings at 120 Hz and 100 kHz plus frequency coefficients for 160–250 V enable designers to size capacitors for both low- and high-frequency ripple conditions.
• Low dissipation factor: tanδ 0.15 (20°C, 120 Hz) reduces AC loss and heat generation compared with higher-loss components.
• Compact snap-in form factor: φ20 × 30 mm radial can with snap-in terminals provides a space-efficient, board-secure solution for through-hole assembly.
• Consistency and traceability: Nichicon LGU series documentation defines end-of-life and shelf-life characteristics, helping validate long-term reliability in designs.
• Regulatory compliance: RoHS compliance supports environmental and regulatory requirements.

Why Choose LGU2E181MELY?

LGU2E181MELY combines 250 V, 180 µF bulk capacitance with snap-in mounting and a 105°C, 3000-hour endurance specification—delivering a reliable, predictable capacitor option for general-purpose power designs. Its defined ripple-current ratings and frequency coefficients let engineers accurately assess performance from mains-frequency filtering up to high-frequency decoupling.

This part is well suited to engineers and procurement teams seeking a mass-production-ready, RoHS-compliant aluminum electrolytic capacitor from Nichicon’s LGU series where long-term thermal endurance and controlled electrical characteristics are required.

Request a quote or contact sales to discuss availability, lead times, and sample requirements for LGU2E181MELY.