CBB metallized polypropylene film capacitor is divided into many sub-series, among which CBB21 and CBB22 are the most widely used through-hole radial models. They adopt non-inductive winding structure, low dissipation factor and excellent high-frequency performance, suitable for DC, AC and pulse circuits.

CBB21 capacitor features and applications: CBB21 is a general-purpose model, mainly used for DC filtering, signal coupling and RC step-down circuits. Its rated voltage is commonly 250VDC, 400VDC and 630VDC, stable performance and low cost, widely used in LED power supplies and small control boards.

CBB22 capacitor features and applications: CBB22 is optimized for high-frequency and high-current occasions, with better pulse resistance and lower temperature rise. It is commonly used in high-frequency inverters, snubber circuits and electronic ballasts. The pin pitch and volume are similar to CBB21, which is convenient for PCB replacement design.

weidy CBB capacitor suggests that when selecting CBB21 and CBB22, focus on ripple current and working frequency. For ordinary low-frequency DC circuits, CBB21 is enough; for high-frequency switching circuits, CBB22 is recommended for better reliability.