LGW2E122MELC40

The LGW2E122MELC40 is a Nichicon LGW series aluminum electrolytic capacitor in a snap‑in radial can package. It delivers 1.2 mF capacitance at a 250 V rated voltage and is designed for general‑purpose power filtering where high ripple endurance and elevated temperature operation are required.

Key value propositions include high ripple current capability, long endurance at 105°C, and a snap‑in mounting format for robust board installation in demanding power applications.

Key Features

• Capacitance & Voltage — 1.2 mF nominal capacitance with a 250 V rated voltage and tolerance of ±20% for bulk energy storage and smoothing.
• High ripple current — Rated ripple current of 3.45 A at 120 Hz (low frequency) and 5.175 A at 50 kHz (high frequency), with frequency coefficients provided to scale ripple capacity across frequency.
• High‑temperature endurance — Rated for operation up to +105°C with an endurance specification of 3000 hours at 105°C under D.C. bias plus rated ripple current.
• Operating temperature range — Specified from –40°C to +105°C.
• Leakage and dissipation control — Leakage current specified as I ≤ 3√CV (μA) after 5 minutes at 20°C; tan δ (dissipation factor) max 0.15 at 120 Hz for the 200–400 V range.
• Snap‑in radial can package — Snap‑in terminals for secure mounting; physical size L: 4 × D: 3.5 cm and a maximum seated height of 1.575 inch.
• RoHS compliant — Conforms to the RoHS directive.

Typical Applications

• General‑purpose power supply filtering — Bulk smoothing and filtering where 250 V rating, 1.2 mF capacitance, and high ripple capability are required.
• High‑ripple, high‑temperature power systems — Suitable for circuits that must tolerate continuous ripple at elevated temperatures thanks to a 3000 h endurance at 105°C.
• Board‑mounted power modules — Snap‑in radial can simplifies secure installation in power assemblies that require robust mechanical retention.

Unique Advantages

• High ripple endurance: Designed to withstand rated ripple current for 3000 hours at 105°C, supporting long service life under continuous ripple loading.
• Frequency‑scaled ripple performance: Frequency coefficient data enables designers to predict ripple capability across 50 Hz to 50 kHz operating ranges.
• Wide temperature operation: –40°C to +105°C rating supports elevated‑temperature deployments while maintaining capacitance and leakage characteristics.
• Measured leakage and dissipation specs: Leakage specified by I ≤ 3√CV and tan δ limits (max. 0.15 at 120 Hz for 200–400 V) provide predictable loss and self‑heating behavior.
• Snap‑in packaging for robust mounting: Radial snap‑in can with defined dimensions (L: 4 × D: 3.5 cm) facilitates reliable mechanical and electrical installation.
• RoHS compliance: Meets RoHS directive requirements for materials compliance.

Why Choose LGW2E122MELC40?

The LGW2E122MELC40 balances high capacitance (1.2 mF) and a 250 V rating with proven high‑ripple endurance and a +105°C temperature rating, making it a practical choice for designers needing durable bulk capacitance in demanding power environments. Its snap‑in radial can form factor simplifies assembly while delivering predictable electrical characteristics such as leakage current and dissipation factor.

This part is well suited for engineers specifying general‑purpose power capacitors where long endurance at elevated temperatures, high ripple capability, and RoHS compliance are required. The clear datasheet parameters enable straightforward engineering tradeoffs and reliable BOM selection.

Request a quote or submit an inquiry to receive pricing, availability, and lead‑time information for the LGW2E122MELC40.