BC547 Transistor Data

Key transistor data for the BC547 audio and general purpose transistor including key electrical parameters, pinout, package type and many other key transistor details.

BC547 plastic leaded transistor: transistor gain Beta, is upwards of 110 — BC547 Plastic leaded transistor

Key details and performance parameters for the BC547 transistor.

BC547 transistor parameters & data
Parameters	Details
Transistor type	Silicon audio / switching and general purpose NPN transistor
Package type	TO92 (plastic)
V_CBO max (V)	50
V_CEO max (V)	45
V_EBOmax (V)	6
V_CEsat (V)	250mV @ I 10 mA
I_C max (mA)	100
T_J Max °C	150
P_TOT mW	500
f_T min (MHz)	300
C_OB	6
h_fe	110 - 800
I_C for h_fe	10
Similar / equivalents	2N5818

Outline:

Pinout:

Notes: This is a widely used audio and general purpose transistor.

Explanation of transistor parameters

Parameter	Explanation
V_CBO Max	Maximum collector-base voltage with emitter open circuit .
V_CEO Max	Maximum collector-emitter voltage with base open circuit.
V_EBO Max	Maximum emitter-base voltage with collector open circuit.
V_CEsat (included where applicable)	The voltage drop across the collector-emitter when the transistor is fully saturated (acting as a closed switch).
I_C Max	Maximum collector current.

Parameter	Explanation
T_J	Maximum junction temperature.
P_TOT Max	Maximum device dissipation normally in free air at 25°C unless other conditions indicated.
f_T Min	Minimum cutoff frequency at which the current gain in a common emitter circuit falls to unity.
C_OB Max	Maximum collector capacitane, normally measured with emitter open circuit.
h_FE	DC current gain for H_FE at I_C. [Note hfe is the small signal gain and although this may be slightly different, the transistor current gain will vary considerably from ne transistor to the next of the same type.]
P_TOT Max	Maximum device dissipation normally in free air at 25°C unless other conditions indicated.

These are the main transistor parameers that have been included in our list. There are others, but these help quantify the main elements of the performance of the transistor.

Read more about . . . . Transistor Data-sheet Specifications & Parameters.

Please note, that the data given is the best estimate we can give within a tabulated summary of this nature. Parameters also vary between manufacturers. Electronics Notes cannot accept any responsibility for errors, inaccuracies, etc, although we do endevaour to ensure the data is as accurate as possible.