LGNW6221MELZ45

The LGNW6221MELZ45 is a Nichicon LGN series snap‑in terminal aluminum electrolytic capacitor optimized for general‑purpose power applications. It delivers 220 µF at a 420 V rating in a compact radial can snap‑in package and is polarized for DC applications.

Designed for elevated operating temperatures, the part is specified for operation up to 105°C and is built to withstand sustained ripple current for long endurance, making it suitable where reliable bulk capacitance and thermal robustness are required.

Key Features

• Capacitance & Voltage — 220 µF nominal capacitance with a 420 V rated voltage; capacitance tolerance ±20% at 120 Hz, 20°C.
• High‑temperature Endurance — Rated for operation up to 105°C and specified to withstand 3000 hours of rated ripple current at 105°C; after endurance the capacitor meets capacitance, tan δ and leakage limits defined in the LGN series specifications.
• Ripple Performance — Specified ripple current of 1.05 A at 120 Hz and 1.502 A at 100 kHz to support smoothing and filtering under AC ripple loads.
• Low Leakage — Leakage current meets the LGN series limit I ≤ 3/√C (µA) after 5 minutes’ application of rated voltage at 20°C.
• Low‑temperature Stability — For the LGN series at 350–600 V the impedance ratio Z(–25°C)/Z(+20°C) is specified up to 8, matching the 420 V rating for stable performance toward the low end of the temperature range.
• Compact Snap‑in Package — Radial, can snap‑in mounting for secure chassis or PCB mounting; the part offers a one‑rank smaller case size compared with LGU series parts.
• RoHS Compliant — Meets the RoHS directive (2011/65/EU, (EU)2015/863).
• Polarized Construction — Polarized aluminum electrolytic design for DC filtering and energy storage applications.
• Physical Size — Body dimensions approximately L: 4.5 × D: 2.2 cm for space‑conscious designs.

Typical Applications

• General‑purpose power systems — Provides bulk capacitance and ripple smoothing where a polarized aluminum electrolytic with snap‑in mounting and 420 V rating is required.
• Power supply filtering — Used for DC link smoothing and ripple absorption in general‑purpose power electronics designs.
• Industrial and commercial equipment — Suited to applications that require sustained operation at elevated temperatures up to 105°C and long ripple endurance.

Unique Advantages

• Long ripple endurance: Specified to withstand 3000 hours of rated ripple current at 105°C, delivering predictable end‑of‑life behavior for thermal stress environments.
• High voltage capability: 420 V rating enables use in higher DC bus and filtering applications without parallel components to reach the required voltage.
• Dual‑frequency ripple specification: Rated ripple current at both 120 Hz and 100 kHz supports designers working across low and high ripple frequency domains.
• Compact footprint: One rank smaller case compared with LGU series parts allows higher density placement where board or chassis space is constrained.
• Verified electrical stability: Series specifications define limits for capacitance change (±20%), tan δ, and leakage after endurance and shelf‑life tests, helping predict in‑service behavior.
• Regulatory compliance: RoHS conformity supports use in regions and assemblies requiring restricted substance compliance.

Why Choose LGNW6221MELZ45?

The LGNW6221MELZ45 combines a 420 V rating and 220 µF capacitance in a compact snap‑in can designed for sustained high‑temperature operation up to 105°C. Its specified ripple current ratings at both 120 Hz and 100 kHz, together with 3000‑hour endurance at 105°C, make it a predictable choice for general‑purpose power filtering where thermal and ripple stresses are a concern.

This part is appropriate for engineers and procurement teams building robust power systems that require a polarized aluminum electrolytic with clear endurance and leakage specifications, compact packaging, and RoHS compliance.

Request a quote or submit a parts inquiry to receive pricing, availability, and assistance integrating the LGNW6221MELZ45 into your design.