Philips A21509-530-01 Capacitor

Philips A21509-530-01 capacitor is a high-capacitance electrolytic device specified at 2700 µF with a 400 V DC rating, used in Philips power and bus circuitry as a supplement to hold up and ripple suppression on the DC rail. The component is listed with a tolerance of -10% to +50%, accommodating variations in aging and operating conditions, and is rated for up to 85°C ambient, making it suitable for chassis- or board-mounted use in moderate-temperature environments. In vendor listings, the part is described as a 2700 µF, 400 V DC capacitor with a surge rating of 450 and an 85°C maximum ambient temperature, aligning with its role in stabilizing supply voltage during transient loads. The A21509-530-01 designation appears in contexts such as frequency-converter boards and other Philips-based assemblies, and it has also appeared in second-hand listings linked to industrial equipment (for example, usage in Allen-Bradley frequency-converter assemblies). This combination of capacitance, voltage rating, and temperature tolerance positions the part as a compact energy-storage solution for hold-up and ripple control in power-supply stages, motor controllers, and drive electronics within industrial automation where reliable DC bus stabilization is critical.