LAKW6121MELZ45ZB

The LAKW6121MELZ45ZB is a snap‑in terminal aluminum electrolytic capacitor rated at 120 µF and 420 V, designed for general‑purpose power applications. It delivers high‑voltage handling, controlled leakage, and long endurance at elevated temperatures for equipment that operates in voltage‑fluctuating environments.

This part offers a compact φ22 × 45 mm can with snap‑in mounting and tray packing for mass production, making it suitable for systems requiring reliable bulk capacitance and robust mounting in power assemblies.

Key Features

• Electrical Performance — 120 µF nominal capacitance at a rated voltage of 420 V with ±20% tolerance; polarized design for DC applications.
• Ripple Handling — Rated ripple current of 750 mA at 120 Hz and 862.5 mA at 10 kHz to support DC bias plus ripple in power circuits.
• Low Leakage — Specified leakage current of 670 µA after standard voltage application, supporting predictable standby and bias conditions.
• Thermal and Lifetime — Rated for operation from −25°C to +105°C with a rated lifetime of 2000 hours at 105°C under specified conditions.
• Safety and Robustness — Designed with improved safety features for abnormally excessive voltage and a pressure‑relief vent per series specifications.
• Package & Mounting — Radial can, snap‑in terminal type (φ22 × 45 mm), tray packing appropriate for mass production assembly.
• Regulatory Compliance — RoHS compliant.

Typical Applications

• Industrial power equipment — Use where high DC voltage and ripple endurance are required in systems exposed to fluctuating supply conditions.
• Power supplies and converters — Provides bulk capacitance and ripple current capability for DC link and filtering applications operating up to 420 V.
• General‑purpose electronic assemblies — Snap‑in mounting and tray packing support high‑volume PCB assembly for equipment that requires durable high‑voltage capacitors.

Unique Advantages

• 420 V rating — Enables design flexibility for higher‑voltage power rails without stepping up component count.
• High ripple tolerance — 750 mA (120 Hz) and 862.5 mA (10 kHz) ripple ratings help manage AC components of DC bias in power circuits.
• Long high‑temperature life — 2000 hours at 105°C endurance supports reliable operation in elevated‑temperature environments.
• Robust safety features — Pressure relief and series‑level protections minimize risk under abnormal overvoltage events.
• Manufacturing‑friendly packaging — Tray packing and snap‑in terminals streamline high‑volume assembly and secure PCB retention.
• Low leakage — 670 µA leakage current rating aids predictable bias and power budgeting in design.

Why Choose LAKW6121MELZ45ZB?

LAKW6121MELZ45ZB combines high voltage capability (420 V), substantial capacitance (120 µF), and validated endurance at 105°C to support demanding power electronics and general‑purpose equipment operating in fluctuating voltage environments. Its snap‑in package and tray packing facilitate high‑volume assembly while the series safety features help manage abnormal voltage conditions.

This part is well suited to engineers designing robust power supplies, converters, and industrial equipment where long‑term thermal endurance, controlled leakage, and ripple handling are required. Choosing this capacitor provides a balance of electrical performance and production readiness from a RoHS‑compliant component family.

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