LAR2E391MELZ35

The LAR2E391MELZ35 is a snap‑in terminal aluminum electrolytic capacitor in a radial can package, specified at 250 V and 390 µF with ±20% tolerance. It is designed for general-purpose applications that require high-voltage bulk capacitance with snap‑in board mounting.

Key performance attributes include rated ripple current endurance at elevated temperature, overvoltage safety characteristics, and RoHS compliance, making it suitable for assemblies that need robust, serviceable power capacitance in a compact footprint (22 mm diameter × 35 mm length).

Key Features

• Electrical characteristics — 390 µF capacitance at 250 V rated voltage with ±20% tolerance; polarized electrolytic design suitable where a high-voltage bulk capacitor is required.
• Leakage and dissipation — Leakage current specified as I ≤ 3√(C·V) µA after 5 minutes at 20°C; tan δ limits provided for stability of loss characteristics.
• Ripple current performance — Rated ripple current of 1.3 A at 120 Hz and 1.95 A at 50 kHz; frequency-dependent ripple capability is specified in the series data.
• Thermal and endurance rating — Operating temperature range −40°C to +105°C; endurance of 2000 hours at 105°C with DC bias plus rated ripple current (capacitance change within ±20%, tan δ and leakage within specified limits).
• Overvoltage safety — Series design reduces incidence of short under overvoltage conditions; safety performance when 1.5× rated voltage (limited current = 1 A) is applied is specified in the datasheet.
• Package & mounting — Radial, snap‑in can for secure PCB retention; physical size L: 3.5 × D: 2.2 cm (22 mm diameter × 35 mm length); sleeve marking in white on black for clear identification.
• Environmental compliance — RoHS compliant (2011/65/EU, (EU)2015/863).

Typical Applications

• General‑purpose electronic circuits — Use where a 250 V, 390 µF polarized capacitor is required for bulk energy storage or decoupling in general-purpose designs.
• Boards requiring snap‑in mounting — Snap‑in terminals provide secure mechanical retention for higher‑voltage capacitors in assemblies and simplify PCB handling.
• High‑temperature operation — Suited for equipment operating up to 105°C where long endurance under rated ripple current is needed.

Unique Advantages

• High-temperature ripple endurance: 2000 hours at 105°C under DC bias plus rated ripple current supports reliable long-term operation in elevated-temperature environments.
• Overvoltage safety design: Series-level measures reduce short incidence and the capacitor meets defined safety performance when exposed to 1.5× rated voltage with current limitation.
• Specified ripple handling across frequencies: Validated ripple current ratings at 120 Hz and 50 kHz let designers size capacitors for both low- and high-frequency ripple environments.
• Robust snap‑in packaging: Radial can with snap‑in terminals delivers secure PCB mounting and straightforward mechanical integration.
• Clear identification and compliance: White-on-black sleeve marking aids assembly and inspection; RoHS compliance addresses regulatory requirements.
• Shelf‑life and recovery behavior: Shelf‑life specifications and post-storage recovery procedures are defined in the datasheet to support long-term inventory management.

Why Choose LAR2E391MELZ35?

The LAR2E391MELZ35 positions itself as a reliable, general-purpose high-voltage electrolytic solution when designers need 250 V bulk capacitance with elevated-temperature endurance and snap‑in PCB mounting. Its specified ripple current ratings, endurance at 105°C, and defined overvoltage safety behavior make it appropriate for assemblies where predictable performance under stress is important.

This part is suited to engineers and procurement teams looking for durable, RoHS‑compliant capacitors in a compact radial can form factor, backed by series-level specifications for endurance, leakage, dissipation, and safety performance that simplify component selection and lifecycle planning.

Request a quote or contact sales to discuss availability, lead times, and how LAR2E391MELZ35 can fit into your next design.