LGX2H121MELB25

The LGX2H121MELB25 is a snap‑in terminal aluminum electrolytic capacitor from Nichicon's LGX series. It delivers 120 µF capacitance at a 500 V rating in a radial can snap‑in package designed for polarized, general‑purpose power applications.

Engineered for high‑duty power systems, this long‑life capacitor is suited for rectifier circuits in general inverters and switching power supplies, offering sustained performance under rated ripple current and elevated temperature conditions.

Key Features

• Capacitance & Voltage — 120 µF nominal capacitance with a 500 V rated voltage and tolerance of −20% to +20%.
• Long‑life Endurance — Rated to withstand 5000 hours of application of rated ripple current at 105°C, maintaining capacitance and leakage characteristics per series specifications.
• Ripple Current Capability — Handles 820 mA at 120 Hz and 1.173 A at 50 kHz, enabling effective smoothing in high‑frequency and low‑frequency power circuits.
• Operating Temperature Range — Specified for −25°C to +105°C operation to support elevated‑temperature power environments.
• Mounting & Package — Snap‑in terminal, radial can (snap‑in) package; polarized construction for board mounting in power assemblies. Physical dimensions: L: 2.5 × D: 3 cm with a seated height up to 2.5 cm.
• Leakage and Dissipation — Series specification for leakage current: I ≤ 3√CV (µA) after 5 minutes at 20°C; tan δ maximum for 450–500 V is 0.20 (measured at 120 Hz, 20°C).
• Environmental Compliance — Compliant with the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Rectifier circuits for inverters — Used as filter and smoothing capacitors on the DC side of general inverter rectifier stages.
• Switching power supplies — Provides bulk capacitance and ripple current handling in SMPS designs.
• General‑purpose power filtering — Suitable for industrial and commercial power conversion where high voltage and long life are required.

Unique Advantages

• Designed for extended service life — 5000 hours at 105°C under rated ripple current offers predictable aging for long‑running power systems.
• High voltage capability — 500 V rating enables use in higher‑voltage DC bus and rectifier applications without series stacking.
• Dual‑frequency ripple handling — Published ripple current ratings at both 120 Hz and 50 kHz support performance across low and high switching frequencies.
• Compact snap‑in package — Radial snap‑in can with a small footprint (L: 2.5 × D: 3 cm) simplifies PCB mounting in constrained power assemblies.
• Measurable electrical stability — Leakage and dissipation factor limits (I ≤ 3√CV, tan δ ≤ 0.20 at 450–500 V) provide verifiable baseline electrical behavior for design validation.
• RoHS compliant — Meets current RoHS requirements for environmental regulatory alignment.

Why Choose LGX2H121MELB25?

The LGX2H121MELB25 combines high voltage rating, robust ripple current capability, and a proven long‑life specification to serve demanding power conversion designs. Its snap‑in radial package and polarized construction make it suitable for board‑level integration in rectifiers and switching supplies where durability at elevated temperature is required.

This part is well suited for engineers specifying bulk and smoothing capacitance in industrial and commercial power systems who need verifiable endurance, clear ripple current ratings at multiple frequencies, and RoHS compliance for regulatory alignment.

Request a quote or submit a specification inquiry to our sales team for pricing, lead time, and availability information on the LGX2H121MELB25.