LGGW6121MELZ30

The LGGW6121MELZ30 is a snap-in terminal aluminum electrolytic capacitor from Nichicon's LGG series. It provides 120 µF nominal capacitance at a 420 V rating in a compact, radial can snap-in package designed for general-purpose electronic equipment.

Designed for equipment downsizing, this part combines a smaller-case footprint with specified ripple-current capability, controlled leakage, and extended high-temperature endurance for sustained operation up to 105°C. It is RoHS compliant and supplied in tray packing for mass production use.

Key Features

• Snap-in terminal package — Radial, can-type snap-in mounting for secure PCB insertion and mechanical stability in power assemblies.
• Rated capacitance and voltage — 120 µF nominal with ±20% tolerance at a 420 V rating.
• Ripple current capability — 810 mA at 120 Hz (low frequency) and 1.158 A at 100 kHz (high frequency), specified for application-specific ripple loading.
• Low leakage — Specified leakage current of 670 µA after voltage application at 20°C.
• High-temperature endurance — Endurance specified as 2000 hours at 105°C with defined limits for capacitance change, tan δ, and leakage current.
• Operating temperature range — −25°C to 105°C for the 400–450 V category.
• Compact, space-saving form — φ22 × 30 mm case (L: 3 × D: 2.2 cm); LGG series offers one-rank smaller case sizing to support equipment downsizing.
• Electrical stability — tan δ (max.) 0.15 at 120 Hz, 20°C for the 160–420 V group; low-temperature impedance ratio Z(–25°C)/Z(+20°C) up to 8 for the 400–450 V category.
• Polarized — Designed for polarized circuit topologies where correct polarity is maintained.
• Compliance and packaging — RoHS compliant and supplied in tray packing for production handling.

Typical Applications

• General-purpose electronic equipment — Suitable where a 420 V, 120 µF snap-in capacitor is required for general-purpose circuits.
• Space-constrained assemblies — One-rank smaller case sizing in the LGG series supports equipment downsizing and tighter enclosure layouts.
• Elevated-temperature operating environments — Endurance rated to 2000 hours at 105°C and an operating range to 105°C, supporting continuous use in higher ambient temperatures.

Unique Advantages

• 420 V rating for high-voltage circuits: Enables use in applications requiring higher DC voltage handling with 120 µF capacitance.
• Dual-frequency ripple specification: Explicit ripple-current ratings at 120 Hz (810 mA) and 100 kHz (1.158 A) allow designers to assess performance across common ripple conditions.
• Extended high-temperature life: 2000-hour endurance at 105°C provides predictable long-term behavior under sustained thermal stress.
• Compact snap-in form factor: φ22 × 30 mm package and LGG series smaller sizing help reduce board area compared with larger-case alternatives.
• Controlled leakage and dielectric characteristics: Specified leakage current (670 µA) and tan δ limits help ensure predictable circuit behavior after voltage application and over life tests.
• RoHS compliant: Meets RoHS requirements for use in compliant product designs.

Why Choose LGGW6121MELZ30?

LGGW6121MELZ30 is positioned for engineers and procurement teams seeking a compact, high-voltage snap-in electrolytic capacitor with defined ripple capability and proven endurance at elevated temperatures. As part of Nichicon's LGG series, it provides a smaller-case option aimed at equipment downsizing without sacrificing key electrical specifications.

Its combination of 420 V rating, specified low- and high-frequency ripple currents, controlled leakage, and 2000-hour endurance at 105°C delivers a verifiable component choice for general-purpose designs that require stable performance in constrained spaces and higher-temperature environments.

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