STD815CP40

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Transistors are essential components in all modern electrical circuits. They are used to control current and often play a vital role in amplifying and switching signals. The STD815CP40 is one such device and is both reliable and affordable.

The STD815CP40 is a bipola transistor array designed specifically to protect diodes and transistors from excessive power dissipation. It is a 40-pin integrated circuit (IC) consisting of 8 Individual transistors that work together to ensure that the devices connected to it are not subjected to too much power. The transistors are configured as a Darlington array and have a common emitter for each transistor. This allows for the individual transistors to be driven with a single current source.

Each transistor in the STD815CP40 is supposed to be driven with the same current level, which is determined by a resistor connected to the Vcc input. The NPN transistors each have an individual collector and the overall gain of the array is proportional to the number of transistors in the array. In addition to providing protection, the STD815CP40 is capable of providing up to a 100mA current drive. This makes it well-suited for applications that require a large amount of current to be switched or amplified.

One of the most common applications of the STD815CP40 is in the protection of signal pickups in telephone lines. In this application, the array acts as a signal backstopper and stops any surge or spike in the line signal from flowing back to the signal pickup. This can be useful in protecting the signal pickup from damage, as well as preventing interference from other lines on the same circuit. Another common application is as a general-purpose switching transistor for driving motors, relays, and even LEDs.

The working principle of the STD815CP40 is quite simple. The transistors are configured as a Darlington pair, with a common “in” terminal and a common “out” terminal. When a voltage is applied to the input, the current flows from the input to the output, turning on the transistors one by one. The gain of each transistor is determined by the values of the resistors connected to the Vcc input, and the current flow through the circuit is controlled by the amount of voltage applied to the input.

Overall, the STD815CP40 is an effective and affordable transistor array designed to protect diodes, transistors, and other devices from excessive power dissipation. Its ability to provide up to 100mA of current, combined with its simple design makes it popular for various applications such as telephone line protection and general purpose switching.

The specific data is subject to PDF, and the above content is for reference