The logic behind this is, in NPN transistor Emitter (E) - N type material - Equivalent to cathode of the diode Base (B) - P type material - Equivalent to anode of the diode Collector(C) - N type material - Equivalent to cathode of the diode.

If the connections are interchanged it will not show any value.

The logic behind this is, in PNP transistor Emitter (E) - P type material - Equivalent to anode of the diode Base (B) - N type material - Equivalent to cathode of the diode Collector(C) - P type material - Equivalent to anode of the diode.

Please read the post How to test transistor using Multimeter.

But I have a question As you show the pin diagram identification in fig for EBC.

The second letter indicates the type; for example C means low power audio frequency; D means high power audio frequency; F means low power high frequency.

Kode Transistor Pnp Code Identifies The

The rest of the code identifies the particular transistor.There is no obvious logic to the numbering system.

Sometimes a letter is added to the end (eg BC108C) to identify a special version of the main type, for example a higher current gain or a different case style.

If a project specifies a higher gain version (BC108C) it must be used, but if the general code is given (BC108 any transistor with that code is suitable.

The letter at the end identifies versions with different voltage ratings.

The most important properties to look for are the maximum collector current IC and the current gain hFE.

To make selection easier most suppliers group their transistors in categories determined either by their typical use or maximum power rating.

The table below shows the most important technical data for some popular transistors, tables in catalogues and reference books will usually show additional information but this is unlikely to be useful unless you are experienced.

The polarities of the two types are different, so if you are looking for a substitute it must be the same type.

The guaranteed minimum value is given because the actual value varies from transistor to transistor - even for those of the same type Note that current gain is just a number so it has no units.

Since the gain is roughly constant for various currents but it varies from transistor to transistor this detail is only really of interest to experts.

Kode Transistor Pnp Series Of Parameters

Why hFE It is one of a whole series of parameters for transistors, each with their own symbol.

This rating is important for transistors operating as amplifiers; the power is roughly IC VCE.

For transistors operating as switches the maximum collector current (IC max.) is more important.

Catalogues may have separate tables for different categories.

However, they may have a different case style so you will need to take care when placing them on the circuit board.