These holes make it easy to attach the transistor to a heatsink. The 2N3055 transistor comes in TO-3 metal case packaging with two holes. Series pass transistor in linear power supplies.Typically configured in a push-pull configuration delivering up to 40 Watts into an 8 a speaker(load). As a switching transistor in medium power applications.So use it only in low-frequency operations. Due to its low transition frequency, it’s not practical to use it in switch mode applications. 2N3055 is used in linear power supplies as a series pass transistor. This transistor is ideal for medium current and high power circuit applications. The complementary transistor of 2N3055 is the MJ2955 PNP transistor. 2N3055G is the lead-free version and 2N3055HV has higher voltage ratings. The last 4 transistors are different versions of 2N3055. The manufacturing cost is quite low for the TO-3 case.

The other ratings like max current and voltage are the same. The epitaxial version has a higher cut-off frequency as well. Transistors can be used as amplifiers and oscillators only if applied at frequencies well below Transition frequency. Note: f T or Transition frequency is a measure of the input frequency stability of the transistor. The Epitaxial version has a transition frequency of 2.5 MHz. To begin with, the transition frequency f T of the original 2N3055 transistor is low(). ParameterĢN3055 Epitaxial Base Version VS Homotaxial version Given below is the specifications table of the 2N3055 Transistor that lists its features.

The body of the transistor acts as the collector terminal. *This information is for general informational purposes only, we will not be liable for any loss or damage caused by the above information.2N3055 Transistor Pinout(upper section is short)ī) The distance of the upper section is less than the lower one- The terminal on the left is the Base. The company offers a wide range of products including microcontrollers, sensors, power amplifiers, and integrated circuits for various applications in the automotive, industrial, and consumer markets.įounded in 1987, STMicroelectronics has operations in over 100 countries and is one of the largest semiconductor companies in the world. STMicroelectronics is a multinational electronics and semiconductor manufacturer based in Geneva, Switzerland.

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