LGN2W820MELZ25

The LGN2W820MELZ25 from Nichicon is a snap-in terminal aluminum electrolytic capacitor in the LGN series, designed for general-purpose high-voltage applications. It delivers 82 µF capacitance at a 450 V rating in a compact, smaller-sized snap-in can, and is specified for operation from -25 °C to 105 °C.

This part is engineered for elevated-temperature endurance and ripple handling: it withstands 3,000 hours of rated ripple current at 105 °C and is RoHS compliant.

Key Features

• Voltage & Capacitance – 82 µF rated capacitance at 450 V provides high-voltage energy storage for DC circuits where compact, high-voltage capacitance is required.
• High-temperature Endurance – Endurance specified as 3000 hours at 105 °C with DC bias plus rated ripple current applied; capacitance change is within ±20%, and leakage current remains within initial specified limits after the test.
• Ripple Current Performance – Rated ripple current of 640 mA at 120 Hz and 915.2 mA at 100 kHz supports filtering and smoothing under continuous AC ripple conditions.
• Compact Snap-in Package – Radial can, snap-in mounting with a compact footprint (L: 2.5 × D: 2.2 cm and max seated height 2.5 cm), and one rank smaller case size than the LGU series for space-constrained racks or chassis.
• Wide Operating Temperature – Specified operating range from -25 °C to 105 °C for 350–600 V parts, matching the 450 V rating of this unit and ensuring stable performance across typical industrial temperature ranges.
• Electrical Characteristics & Stability – Capacitance tolerance ±20% at 20 °C and 120 Hz; tan δ (loss factor) max of 0.20 for 450 V parts; low-temperature impedance ratio Z(–25 °C)/Z(+20 °C) of up to 8 for 350–600 V ratings.
• Leakage Current Specification – Leakage current defined in the datasheet as I ≤ 3/√(μA) after 5 minutes’ application of rated voltage at 20 °C (datasheet reference).
• RoHS Compliant – Conforms to the RoHS directive (2011/65/EU, (EU)2015/863), supporting regulatory requirements for restricted substances.

Typical Applications

• High-voltage DC filter stages – Provides bulk capacitance and ripple smoothing where a 450 V rating and verified ripple current handling are required.
• Power conversion and supplies – Suited for DC link or smoothing use in power supplies and converters that need compact, high-voltage electrolytic capacitance.
• Industrial control equipment – Use in general-purpose industrial electronics where elevated operating temperature and long endurance at 105 °C are important.

Unique Advantages

• High-voltage capability: 450 V rating enables use in higher-voltage DC circuits without overspecifying multiple lower-voltage parts.
• Long elevated-temperature life: 3000 hours endurance at 105 °C under rated ripple current preserves performance and reduces replacement frequency in hot environments.
• Compact, space-saving form factor: One-rank smaller case size than LGU and a radial snap-in can (L: 2.5 × D: 2.2 cm) helps reduce PCB/assembly footprint.
• Measured ripple performance: Specified ripple ratings at both 120 Hz and 100 kHz provide clear performance expectations for low- and high-frequency filtering tasks.
• Clear electrical limits and stability data: Datasheet-defined tan δ, impedance ratios at low temperature, and leakage-current criteria support predictable design margins and validation.
• RoHS compliance: Conforms to current RoHS directives for environmentally restricted substances.

Why Choose LGN2W820MELZ25?

The LGN2W820MELZ25 balances high-voltage capability, compact snap-in packaging, and proven high-temperature endurance, making it a reliable option for designers needing 82 µF at 450 V in a smaller footprint. Its specified ripple current ratings and endurance data provide measurable criteria for power-filtering and smoothing designs operating up to 105 °C.

This capacitor is appropriate for engineers and procurement teams specifying general-purpose, high-voltage electrolytic capacitance for industrial and power-electronics systems that require documented performance, RoHS compliance, and reduced board area compared with larger-case alternatives.

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