Diodearray

A diode array is a single component that contains multiple diodes, either in a single package or on a common substrate, allowing several PN junctions to be used together. Diodes in an array can have common anodes, common cathodes, or individual terminals for each diode, enabling configurations such as series, parallel, or bridge arrangements. Diode arrays can be discrete devices in packages or integrated into semiconductor dies for compact, matched networks.

Packaging and configurations vary. Common anode or common cathode arrays simplify wiring in logic, clamping, or routing tasks. Some arrays combine four diodes to form a complete bridge rectifier in one package, while others provide closely matched devices for temperature compensation or limiter circuits. In integrated form, diode arrays are used for input protection, where multiple diodes connect to input pins to clamp voltages at safe levels.

Applications range from power electronics to signal processing. Bridge rectifier diode arrays are common in power supplies, providing compact rectification. ESD protection diode arrays are placed at IC inputs to divert transients. Diode arrays also appear in limiter networks, temperature-compensation circuits, and RF front ends where multiple diodes help shape signals or protect components.

Key selection considerations include forward current rating, forward voltage drop, reverse recovery time, leakage current, breakdown voltage, and thermal performance. The physical arrangement influences parasitic capacitance and cross-talk, which matters in high-frequency or high-density designs. Overall, diode arrays offer compact, matched diode networks suitable for multi-diode needs with simplified assembly and consistent electrical characteristics.