BC548 Bipolar Transistor
Characteristics of the BC548 bipolar transistor
- Type -?NPN
- Collector-Emitter Voltage:?30?V
- Collector-Base Voltage:?30?V
- Emitter-Base Voltage:?5?V
- Collector Current:?0.1?A
- Collector Dissipation -?0.5?W
- DC Current Gain (hfe) -?110?to?800
- Transition Frequency -?150?MHz
- Noise Figure -?2?dB
- Operating and Storage Junction Temperature Range?-65 to 150??C
- Package -?TO-92
Pin configuration (Pinout) of the BC548
The BC548 is manufactured in a plastic TO-92 case. When looking at the flat side with the leads pointed downward, the three leads emerging from the transistor are, from left to right, the collector, base, and emitter leads.
Here is an image showing the pin diagram of the this transistor.
Classification of hFE
The BC548 transistor might have a current gain anywhere between?110?and?800. The gain of the?BC548A?will be in the range from?110?to?220,?BC548B?ranges from?200?to?450,?BC548C?ranges from?420?to?800.
Complementary PNP transistor
The complementary?PNP?transistor to the BC548 is the?BC558.
The SMD versions of the BC548 are available as the?BC848?(SOT-23),?BC848W?(SOT-323),?BC849?(SOT-23) and?BC849W(SOT-323).
Replacement and equivalent transistor for the BC548
You can replace the BC548 with the?BC547,?BC549?or?BC550