![]() Moreover with the -5V emitter-base voltage this transistor can also be used at the output of microcontrollers. The 100mA collector current is quite enough to drive small loads in electronic circuits like relays, LEDs, high power transistors and many other components of an electronic circuit. On the other hand we can use it as a switch to drive loads under 100mA. It can also be used as an audio amplifier or in audio amplifier stages of a circuit and any type of general signal amplification purpose. If the ending alphabet is A then the HFE value will be 110~220, if the ending alphabet is B then the HFE value will be 200~450 and if its C then 420~800.Īs described above it is a general purpose device so a user can use it in variety of general electronic application for example it can be used as a preamplifier or in preamplifier stages of an electronic circuits. The transistor is manufactured in three different part numbers like BC556A, BC556B and BC556C and the only difference between these three different part numbers is the HFE values. With 500mW collector dissipation (Pc) value and 110 to 800 DC current gain value this transistor can also be used in variety of general signal amplification and audio preamplification purposes. The collector-emitter voltage of the transistor is -65V therefore it can be used to drive loads upto -65V DC with max 100mA current. Due to its general purpose features it can be used in variety of general switching and amplification applications in electronic circuits. Max Storage & Operating temperature Should be: -65 to +150 CentigradeĪlternative transistors for BC556 are 2SA1016, 2SA1017, 2SA1082, 2N4403, A1015, A733, 2n2907, BC880, BC879, BC490, 2N5821, BC327 (The pin configuration of each transistor shown here may different from the BC556, it is recommended to first check the pin configuration of any transistor you are using as alternative or equivalent.)īC556 is a common and general purpose bipolar junction transistor available in TO-92 package.Minimum & Maximum DC Current Gain (h FE): 110 to 800.Max Collector Dissipation (Pc): 500 Milliwatt.Max Collector-Base Voltage (V CB): -80V.Max Collector-Emitter Voltage (V CE): -65V.Advertisements Features / Technical Specifications
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