BC558BZL1

BC558BZL1 is a member of the BC558BZ family which are high voltage, low current, NPN bipolar junction transistors with high gain characteristics.

This transistor is commonly used in applications where the power requirements are moderate and the gain of NPN transistors is desired (audio frequency amplifiers, switching circuits and timers). A typical application of this transistor would be as a switch in a battery operated circuit.

BC558BZL1 is a single NPN transistor with three terminals consisting of a collector, base, and emitter. The collector-emitter voltage, VCE, and base-emitter voltage, VBE, of BC558BZL1 can range from 7V to 175V and 6V to 10V respectively. It features a maximum collector current, IC, of 158mA and can operate at temperatures up to 150°C.

The working principle of BC558BZL1 is based on the control of the base current. When a voltage is applied to the collector and base pins, electrons from the base move into the collector and form a complete circuit. This results in a flow of current from the collector to the emitter and the transistor is then said to be in the \'on\' state. When the control voltage is reduced and the base current is interrupted, the electrons in the base no longer flow to the collector and the transistor is said to be in a \'cut-off\' state.

The working of BC558BZL1 can be further enhanced with the help of a base resistor. This is an arrangement in which a resistor is connected in series with the base lead of the transistor. This resistor is used to control the amount of base current and the gain of the transistor. By using a base resistor, the current through the transistor is limited and the collector current can be increased or decreased depending on the particular application.

BC558BZL1 has numerous applications in electronics. It can be used as a switch in power supply circuits, amplifiers, timers, and general-purpose, analog, and digital circuits. It can also be used in switching circuits and voltage regulators. In some configurations, it can be used as a rectifier, frequency multiplier, and voltage doubler.

BC558BZL1 is a high-quality NPN bipolar transistor with good thermal and avalanche characteristics. It features a maximum collector-emitter voltage rating of 175 volts, a maximum continuous current rating of 158 milliamps, and a total power dissipation of 2 watts. It is an extremely versatile device that can be used in almost any electronic application where NPN transistors are required.