LAKW6271MELB45ZB

The LAKW6271MELB45ZB from Nichicon is an aluminum electrolytic capacitor in a snap‑in terminal radial can (φ30 × 45 mm) designed for mass production (tray packing). It provides 270 µF nominal capacitance at a 420 V rated voltage with a ±20% tolerance.

Engineered for general‑purpose electronic equipment and installations exposed to voltage fluctuations, this LAK series device combines high‑voltage capability, extended high‑temperature endurance and improved safety features for abnormal overvoltage conditions. It is RoHS compliant and specified for operation from −25 °C to +105 °C.

Key Features

• Capacitance & Voltage — 270 µF nominal capacitance with a 420 V rated voltage and ±20% tolerance at 120 Hz, 20 °C.
• High‑temperature Endurance — Endurance specified as 2000 hours at 105 °C with DC bias plus rated ripple current; capacitance change, tan δ and leakage current criteria are defined in the series specification.
• Safety Performance — Improved safety features for abnormally excessive voltage and a pressure relief vent designed to operate without dangerous conditions such as flames or dispersion of case fragments.
• Ripple Current — Specified ripple performance of 1.1 A at 120 Hz and 1.265 A at 10 kHz for filtering and smoothing under AC ripple loads.
• Leakage & Dissipation — Leakage current limited by I ≤ 3√(C·V) µA after 5 minutes at 20 °C; tan δ ≤ 0.20 at 120 Hz, 20 °C.
• Package & Mounting — Radial, can‑type snap‑in terminal for secure chassis or PCB mounting; packaged in trays for production assembly.
• Operating Range — Rated for continuous operation from −25 °C to +105 °C.
• Safety Test Rating (series) — For the 420 V rating and capacitances ≥220 µF, limited DC current during safety testing is specified at 7 A (test voltages 520 VDC and 630 VDC), per LAK series test conditions.

Typical Applications

• General‑purpose electronic equipment — Provides high‑voltage capacitance for assemblies that require 420 V rated capacitors and reliable performance over time.
• Equipment in voltage‑fluctuating environments — Improved safety features and pressure relief vent make it suitable where abnormal voltage transients may occur.
• High‑temperature installations — Designed to sustain performance at elevated ambient temperatures up to 105 °C with a specified 2000‑hour endurance.
• Production assemblies — Snap‑in mounting and tray packing support efficient high‑volume assembly workflows.

Unique Advantages

• High‑voltage capability in a compact can — 270 µF at 420 V in a φ30 × 45 mm radial package offers a dense electrical solution where board/chassis space is limited.
• Extended thermal endurance — 2000 hours at 105 °C specification helps maintain capacitance and leakage stability in hot operating environments.
• Defined safety behavior — Pressure relief vent and series safety testing reduce the risk of hazardous failure modes under abnormal voltage stress.
• Measured ripple performance — Specified ripple current ratings at 120 Hz and 10 kHz enable designers to size the capacitor for expected ripple loads.
• Production‑friendly packaging — Snap‑in terminals and tray packing ease automated or manual assembly for volume manufacturing.
• RoHS compliant — Meets RoHS directive requirements for restricted substances.

Why Choose LAKW6271MELB45ZB?

The LAKW6271MELB45ZB balances high voltage, elevated temperature endurance and safety features in a production‑ready snap‑in package. As part of Nichicon’s LAK series, it is positioned for designers who need a reliable aluminum electrolytic capacitor rated for 420 V DC with documented endurance (2000 h at 105 °C) and series safety performance for use in environments where voltage can fluctuate.

This part is well suited to design teams and procurement looking for a robust, high‑voltage electrolytic that supports predictable long‑term behavior, streamlined assembly, and compliance with RoHS requirements.

Request a quote or submit a specification inquiry for LAKW6271MELB45ZB to obtain pricing, availability and production lead‑time information for your project.