LAR2D391MELZ25

The LAR2D391MELZ25 is a 390 µF, 200 V aluminum electrolytic capacitor in a radial snap‑in can designed for general‑purpose electronic equipment. It delivers high ripple handling and long endurance with a compact 22 mm × 25 mm package, making it suitable for power filtering and energy storage in equipment operating across a wide temperature range.

Built to meet demanding thermal and ripple conditions, this Nichicon LAR series snap‑in capacitor combines a 105°C rated operating temperature with a 2000‑hour endurance specification to support reliable operation in continuous or high‑stress environments.

Key Features

• Capacitance & Voltage: 390 µF rated capacitance at 200 V for bulk energy storage and filtering in general‑purpose applications.
• Snap‑in Radial Can Package: Compact 22 mm diameter × 25 mm length radial, snap‑in terminal package optimized for secure PCB mounting and automated assembly via tray packing.
• Temperature Range & Endurance: Operational from −40°C to +105°C with 2000 hours endurance at 105°C when subjected to rated ripple current.
• Low Loss Factor: Maximum tan δ of 0.15 measured at 20°C and 120 Hz, supporting efficient AC ripple handling.
• Rated Ripple Current: 1.31 A at 120 Hz (low frequency) and 1.965 A at 50 kHz (high frequency) for robust ripple performance across frequencies.
• Leakage Current: Leakage specified at 830 µA (measurement per datasheet conditions: after application of rated voltage at 20°C).
• Tolerance: ±20% capacitance tolerance for predictable design margining.
• Safety Under Overvoltage: Designed to reduce incidence of shorting under overvoltage conditions; series testing shows performance under 1.5× rated voltage with controlled failure modes.
• Compliance & Packaging: RoHS compliant and supplied in tray packing; part is in mass production.

Typical Applications

• General‑purpose power electronics: Bulk smoothing and decoupling in AC/DC and DC/DC circuits where 200 V ratings and 390 µF capacitance are required.
• Industrial control equipment: Energy storage and ripple absorption in control and drive assemblies operating to 105°C.
• Power supply modules: Filtering and transient buffering in power modules and racks that benefit from snap‑in mounting and high ripple capability.

Unique Advantages

• Compact, high‑voltage form factor: 390 µF at 200 V in a 22 mm × 25 mm snap‑in can saves board space while delivering substantial capacitance.
• High ripple endurance: Specified ripple currents at both low and high frequencies support designs exposed to mixed frequency loading.
• Extended high‑temperature life: 2000 hours endurance at 105°C provides predictable long‑term behavior in thermal stress conditions.
• Controlled dielectric loss: Low tan δ (0.15 at 20°C/120 Hz) minimizes heating and improves efficiency under AC ripple stress.
• Designed for overvoltage resilience: Series safety testing against 1.5× rated voltage reduces the incidence of catastrophic shorting and supports safer fault behavior.
• Regulatory compliance and supply readiness: RoHS compliant and available in tray packing for production environments.

Why Choose LAR2D391MELZ25?

The LAR2D391MELZ25 positions itself as a reliable, general‑purpose electrolytic solution when designers need a compact 200 V capacitor with substantial capacitance, robust ripple handling, and long high‑temperature endurance. Its snap‑in radial package and tray packing support efficient assembly workflows in mass production.

This part is suited to engineers and procurement teams specifying capacitors for power filtering, energy buffering, and other general‑purpose applications where controlled dielectric loss, verified ripple capability, and demonstrable endurance at 105°C are important for long‑term system reliability.

Request a quote or submit a procurement inquiry to receive pricing, lead time and availability information for the LAR2D391MELZ25.