LGR2E391MELA35

The LGR2E391MELA35 is an aluminum electrolytic capacitor in Nichicon's LGR long-life series, featuring a snap-in radial-can package. It provides 390 µF nominal capacitance at a 250 V rated voltage and is polarized for general-purpose circuit use.

Designed for elevated-temperature operation, this part offers a long-life assurance of 10,000 hours at 105°C under rated ripple conditions, making it suitable for designs requiring sustained performance at high operating temperatures and sustained ripple stress.

Key Features

• Capacitance and Voltage: 390 µF nominal capacitance with a 250 V rated voltage and ±20% tolerance, specified at 120 Hz and 20°C.
• Snap-in Radial Can Package: Snap-in terminal mounting in a radial, can-style package simplifies mechanical retention and board assembly for through-hole designs.
• High Temperature Long Life: Rated for operation from −40°C to +105°C with long-life endurance of 10,000 hours at 105°C when DC bias plus rated ripple current is applied.
• Ripple Current Capability: Rated ripple current of 1.3 A at 120 Hz and 1.95 A at 50 kHz; the frequency coefficient for 200–250 V is 1.00 at 120 Hz and increases up to 1.50 at 50 kHz or higher.
• Endurance and Reliability: After the specified 10,000-hour endurance test at 105°C, capacitance change is within ±25% of initial value; tan δ and leakage current remain within the datasheet limits.
• Leakage Current Specification: Initial leakage current follows the datasheet formula I ≤ 3√(C·V) μA measured after 5 minutes at 20°C, enabling predictable startup behavior.
• Environmental Compliance: RoHS-compliant construction supports regulatory requirements for restricted substances.
• Physical Size: Compact radial can dimensions of approximately 3.5 × 2.5 cm (L × D) for designs where a snap-in high-voltage electrolytic is required.

Typical Applications

• General-purpose circuits — Suitable for general-purpose use where a polarized aluminum electrolytic capacitor with 250 V rating and snap-in mounting is required.
• High-temperature environments — Intended for applications that require reliable operation up to 105°C with long-term endurance (10,000 hours at 105°C under rated conditions).
• Through-hole power assemblies — Snap-in radial can form factor for secure mechanical mounting in through-hole assemblies needing a 390 µF / 250 V capacitor.

Unique Advantages

• Long-life assurance: 10,000 hours endurance at 105°C under rated ripple current preserves capacitance and electrical characteristics over extended service life.
• High-temperature operation: Rated operating range of −40°C to +105°C supports designs exposed to elevated ambient temperatures.
• Predictable ripple handling: Specified ripple currents (1.3 A at 120 Hz, 1.95 A at 50 kHz) and frequency coefficients enable accurate thermal and lifetime budgeting for ripple-stressed designs.
• Clear leakage-current specification: Leakage current governed by I ≤ 3√(C·V) μA after 5 minutes at 20°C provides measurable startup behavior for system design.
• Robust mechanical retention: Snap-in termination and radial can packaging provide a secure through-hole mounting solution for power assemblies.
• Regulatory alignment: RoHS compliance aligns with environmental requirements for restricted substances.

Why Choose LGR2E391MELA35?

LGR2E391MELA35 combines a 390 µF, 250 V aluminum electrolytic cell with a snap-in radial-can package and a datasheet-backed long-life specification. Its 105°C rating and 10,000-hour endurance under rated ripple conditions make it a practical choice for designs that require sustained electrical performance at elevated temperatures.

This part is suited to engineers and procurement teams seeking a polarized, high-voltage electrolytic capacitor with predictable ripple performance, documented leakage and endurance criteria, and RoHS compliance. The LGR series datasheet provides the electrical and reliability parameters needed for design verification and long-term planning.

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