LAR2D681MELB25

The LAR2D681MELB25 from Nichicon is a snap‑in terminal aluminum electrolytic capacitor rated at 680 µF and 200 V. Designed as a general‑purpose power capacitor in a radial, can-style snap‑in package (φ30×25L / 30 mm × 25 mm), it delivers high‑temperature endurance and predictable electrical performance for power electronics designs.

This part is built for reliability under elevated temperature and ripple conditions—withstanding 2000 hours of rated ripple current at 105°C—and includes safety design measures that reduce the incidence of shorting under overvoltage stress. It is RoHS compliant.

Key Features

• Capacitance & Voltage — 680 µF nominal capacitance with a 200 V rated voltage and ±20% tolerance, suitable for bulk energy storage and smoothing in power circuits.
• Snap‑in, Radial Can Package — Snap‑in terminal type in a radial can form factor (φ30×25L / 30 mm × 25 mm) for secure PCB mounting and mechanical stability.
• High‑Temperature Endurance — Rated for operation from −40°C to +105°C and specified to withstand 2000 hours of rated ripple current at 105°C.
• Ripple Current Performance — Rated ripple current 1.75 A at 120 Hz (low frequency) and 2.625 A at 50 kHz (high frequency); frequency coefficients provided for higher frequencies (e.g., 1.00 at 120 Hz for 200/250 V series).
• Leakage Current Specification — Leakage defined as I ≤ 3√(C·V) μA after 5 minutes at 20°C, enabling predictable leakage behavior for design calculations.
• Loss and Low‑Temperature Behavior — tan δ max 0.15 (for 200–400 V, measured at 120 Hz, 20°C); impedance stability ratios specified for −25°C and −40°C relative to +20°C for the 200/250 V range.
• Safety & Overvoltage Characteristics — Designed to reduce short incidence when exposed to overvoltage (rated voltage × 1.5); overvoltage test results indicate >60% pass rate under defined test conditions (limited current = 1 A).
• Regulatory Compliance — Compliant with the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• General‑Purpose Power Supplies — Bulk smoothing and energy buffering in power supply designs where high voltage and elevated temperature endurance are required.
• Industrial Power Electronics — Filtering and decoupling in industrial converters and control equipment operating at elevated temperatures.
• UPS and Backup Systems — Energy storage and ripple suppression in uninterruptible power supplies and backup power modules.

Unique Advantages

• High‑temperature ripple endurance: Withstands 2000 hours of rated ripple current at 105°C, supporting long life in thermally demanding applications.
• Predictable leakage behavior: Leakage current defined by I ≤ 3√(C·V) μA after stabilization, simplifying power loss and standby calculations.
• Robust overvoltage response: Design reduces short incidence under 1.5× rated voltage and meets defined safety performance criteria under limited‑current overvoltage testing.
• Compact snap‑in form factor: Radial, snap‑in can (φ30×25L) provides secure mechanical mounting and straightforward PCB assembly for high‑current power rails.
• Frequency‑aware ripple capability: Published ripple current values and frequency coefficients allow designers to size the capacitor across low and high ripple frequency environments.
• Regulatory readiness: RoHS compliance supports deployment in regulated markets.

Why Choose LAR2D681MELB25?

The LAR2D681MELB25 balances high voltage capability (200 V), substantial capacitance (680 µF), and thermal endurance (−40°C to +105°C with 2000‑hour ripple endurance at 105°C) in a snap‑in radial can package. These characteristics make it well suited for designers who need reliable bulk capacitance and predictable performance under sustained ripple and elevated temperature conditions.

This part is appropriate for engineers designing general‑purpose power electronics that demand proven endurance, defined leakage behavior, and safety‑oriented overvoltage performance, while maintaining compliance with RoHS requirements.

If you would like pricing, availability, or a formal quote for LAR2D681MELB25, please submit a request or inquiry and our team will respond with detailed quoting information and lead‑time options.