VISHAY Electrolytic Capacitor, 22µF, 200V, Radial Leaded

The VISHAY MAL215262229E3 is a high-reliability, radial leaded aluminium electrolytic capacitor, part of the robust 152 RM series. Designed for demanding applications, it offers an excellent balance of performance, longevity, and value, making it a key component in power management circuits where stability and durability are essential. Featuring a non-solid electrolyte, this polarised capacitor is engineered to deliver high capacitance and voltage ratings in a compact, miniature form factor.

Aluminium electrolytic capacitors are ideally suited for requirements such as low and high frequency filtering and energy storage, which demand high capacitance values and significant power ratings. This device provides a high capacitance-to-cost ratio, is relatively small compared to other capacitor technologies, and offers good resilience against voltage spikes, enhancing circuit protection.

Construction & Reliability

The capacitor is constructed using an electrochemically etched aluminium anode foil, which forms the first plate. A thin oxide layer on this foil acts as the dielectric. A paper spacer, impregnated with a fluid electrolyte, is in contact with this oxide layer to form the second plate, with a second foil providing the external contact. The component is housed in a cylindrical aluminium case featuring a pressure relief vent for safety and is insulated with a distinctive blue sleeve. This robust build ensures charge and discharge proof performance and a long operational life of 3000 hours at a maximum temperature of 105°C.

Key Functions & Applications

• Input Buffering: Provides backup energy when mains input voltage dips, stores energy during power level transitions managed by AC/DC converters (e.g., PFC controllers), and prevents high-frequency switching noise from DC/DC converters from reaching the power source.
• Output Buffering: Acts as a current sink for inductors (facilitates