81CNQ040S2 Datasheet/PDFThe 81CNQ040S2 is a rectifying array developed by STMicroelectronics. It contains eight Separate, Ultra-Fast, Soft-Recovery, Rectifying Diode Pairs in one little package. It offers excellent noise immunity and high forwarding surge capability, making it ideal for applications in electronic equipment, such as medical technology, battery chargers and industrial automation.
The 81CNQ040S2 is a single, dual-internal-diode, two-quadrant, rectifying array with a design that guarantees low reverse recovery charge and reverse recovery time. Its internal diodes are controlled by an optimized soft-recovery design, allowing for low losses during operation. Its low-threshold current ratings and forward diode voltage ratings make it versatile for use in mains-powered applications.
This device provides surge capability in excess of 10A (with a 10ms tp=8.3ms waveform), making it suitable for applications encountered in AC mains or in automotive power networks. Its reverse leakage current is extremely low, at 2nA, and its turn-on voltage is well-controlled, making it suitable for use in high-efficiency, low-power and low-noise systems.
The 81CNQ040S2 also has an extremely high withstand voltage rating. It is capable of operating at up to 120V, which makes it suitable for use in high-voltage rectification applications. Its low capacitance levels mean that it is also suitable for use in high-frequency rectification applications.
The 81CNQ040S2 offers low costs due to its small package. It is offered in small, low-cost packages such as SC-70, SOT403, and SMD packages.
In conclusion, the 81CNQ040S2 is a high-performance rectifying array that offers excellent noise immunity, high surge capability, and high voltage ratings. It is suitable for use in a wide range of applications, such as medical technology, battery chargers, and industrial automation. It is available in a variety of packages, making it a cost-effective solution for many applications.