What type of transistor is 2N3055 NPN or PNP?
silicon NPN power transistor
The 2N3055 is a silicon NPN power transistor intended for general purpose applications. It was introduced in the early 1960s by RCA using a hometaxial power transistor process, transitioned to an epitaxial base in the mid-1970s. Its numbering follows the JEDEC standard. It is a transistor type of enduring popularity.
What is a 2N3055 transistor used for?
The 2N3055 transistor is used as a series pass transistor within linear power supplies and also used in high power and medium-current circuits like DC to AC inverters, low-frequency power converters, audio power amplifiers.
Why do we use a 2N3055 transistor in a regulator?
You want to use a DC regulator or learn about voltage regulators using 2N3055. Why use this transistor? Normally, it can be used with loads that require a current not exceeding 2A and a voltage of not more than 30V. This is enough for general work.
What is the pin configuration of 2N3055?
2N3055 Pin Configuration
| Pin Number | Pin Name | Description |
|---|---|---|
| 1 | Base (B) | Normally used as trigger to turn ON the transistor |
| 2 | Emitter (E) | Normally connected to GROUND |
| TAB or CASE | Collector (C) | Normally connected to LOAD |
How do you find the pins of a 2N3055 transistor?
The pin configuration of 2N3055 is given below….2N3055 Pin Configuration.
| Pin Number | Pin Name | Description |
|---|---|---|
| 1 | Base (B) | Normally used as trigger to turn ON the transistor |
| 2 | Emitter (E) | Normally connected to GROUND |
| TAB or CASE | Collector (C) | Normally connected to LOAD |
How do you test a power transistor with a multimeter?
Connect the base terminal of the transistor to the terminal marked positive (usually coloured red) on the multimeter. Connect the terminal marked negative or common (usually coloured black) to the collector and measure the resistance. It should read open circuit (there should be a deflection for a PNP transistor).
How do you test a transistor power supply?
Hook the positive lead from the multimeter to the to the COLLECTOR (C) of the transistor. Hook the negative meter lead to the BASE (B) of the transistor. For an good NPN transistor, you should see “OL” (Over Limit). If you are testing PNP transistor, the meter should show a voltage drop between 0.45V and 0.9V.
How do PNP transistor?
In a PNP transistor, the base current which enters into the collector is amplified. The flow of current is typically controlled by the base. Current flows in the opposite direction in the base. In a PNP transistor, the emitter emits “holes”, and these holes are collected by the collector.