The C945 is a specific part number for a general-purpose NPN bipolar junction transistor (BJT). NPN transistors like the C945 are commonly used in electronic circuits for amplification and switching applications. These transistors are often used in low- to medium-power applications.
Here are some key characteristics and specifications of the C945 transistor:
Type: C945 is an NPN bipolar transistor.
Package: It typically comes in a through-hole package, such as the TO-92 package, which is a common package for low- to medium-power transistors.
Polarity: As an NPN transistor, the current flows from the collector to the base and then to the emitter when it is in the active state.
Voltage and Current Ratings: The specific voltage and current ratings can vary depending on the specific manufacturer and part specifications. Typical voltage ratings for the C945 might include a collector-emitter voltage (Vce) of around 50 volts or more, and a collector current (Ic) rating of a few hundred milliamperes (mA).
Gain (hFE): The current gain or hFE (beta) of the C945 transistor typically falls in the range of 75 to 375, depending on the specific part and manufacturer.
Applications: C945 transistors are widely used in low- to medium-power applications where NPN transistor amplification or switching is required. Common applications include signal amplification, small-signal switching, voltage regulation, and as a building block in electronic circuits.
Pinout: The pinout of the C945 transistor includes three leads: collector, base, and emitter. The orientation of these pins is standardized in the TO-92 package.
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