#TRANSISTOR SCHEMATIC REFERENCE SERIES#

This arrangement makes it work like a switch. The base receives the switching trigger with reference to emitter and this enables relatively huge voltage and current for passing from collector to emitter. The legs can be wired such that one leg becomes a common outlet for the voltages applied to the other two legs.The common leg is called the emitter, while the other two legs are named as base and the collector. It’s a semiconductor component having three leads or legs. The same thing may be witnessed with an LED when powered through a capacitor it illuminates for a fraction of a second and then shuts off. For example if a triggering voltage is applied to the base of a transistor via a capacitor, it would get activated only for a particular fragment of time, until the capacitor gets fully charged, after which the transistor stops conducting. This feature is exploited for enabling switching of a particular active component momentarily. Therefore these are used in timers, oscillators etc.Īnother feature is, once a capacitor is fully charged it refuses to pass any more current/voltage and stops the flow of the current across its leads, meaning the applied current passes across its leads only in the course of charging and is blocked once the charging process is completed. Here, the time consumed by the capacitor to charge fully or discharge fully becomes ideal for timer applications, where the capacitor value decides the timing range of the unit. The stored energy also becomes applicable when it’s released slowly through a restricting component like a resistor. Storing ability of these components means that the stored energy becomes usable, therefore these are used as filters where the stored voltage is used for filling the blank spaces or voltage depressions in the source supply, thus filling up or smoothing the ditches in the line.

The voltage rating is critical, if it exceeds the marking, the capacitor will simply explode.

The 'microfarad' decides the amount of current it can store and the voltage defines how much maximum voltage may be applied across it or stored in it.

It is an electronic component which stores a certain amount of electric charge or simply the applied voltage/current, when its leads are connected across the relevant supply points.The component is basically rated with a couple of units, microfarad and voltage. Other active components like transistors, mosfets, triacs, SCRs also incorporate resistors for the same reasons.

#TRANSISTOR SCHEMATIC REFERENCE SERIES#

It is used to safeguard electronic components by restricting the flow of current when voltage increases.LEDs require resistors in series for the same reason so that they can be operated at voltages higher than the specified rating. – It is an electronic component used for resisting the flow of electrons or the current. Kindly read my previous post regarding what is voltage and current, in order to grasp the below explained basic electronic facts more effectively.

Transistor schematic reference