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Leobot Electronics South Africa - Electronic Component Supplier & Development Service Provider
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R25.80
The TIP122 is a high-power NPN transistor that is commonly used in electronic circuits for switching and amplifier applications. It is designed to handle high collector-emitter voltage (VCEO) and collector current (IC) ratings, making it suitable for use in a wide range of applications, including power switching, inverters, and audio amplifiers. The TIP122 has a maximum VCEO rating of 100V and a maximum IC rating of 5A. It is a Darlington transistor, which means that it consists of two transistors connected in a cascaded configuration to provide high current gain. The TIP122 comes in a TO-220 package, which is a commonly used package for power transistors. It has three leads: the collector, the base, and the emitter. It is important to observe proper polarity when using the TIP122, as connecting it in the wrong direction can damage the transistor and potentially cause other problems in the circuit.
A typical Darlington transistor has a current gain of 1000 or more, so that only a small base current is needed to make the pair switch on higher switching currents.
Another advantage involves providing a very high input impedance for the circuit which also translates into an equal decrease in output impedance.
The ease of creating this circuit also provides an advantage. It can be simply made with two separate NPN transistors, and is also available in a variety of single packages.
N/A
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2N3055 BJT (15A, 100V, 115W, NPN TO-3 Transistor)
R21.56
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E13005-2 Transistor (NPN High voltage. High Speed Switch)
R8.60
2N2222 Transistor (TO-92)
R1.72
2N3906 Transistor (PNP Low-Power Amplifying or Switching Transistor)
2N4401 BJT Transistor (NPN 40V, 600mA, TO-92)
R24.50
TIP31C (NPN Bipolar Power Transistor)
D882P (TO-126) Transistor
R4.90
TIP122 Transistor (5A/100V NPN TO-220 Darlington)
2N2907 Transistor (PNP Analog Amplification and Switching Transistor)
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2N3904 Transistor (NPN General Purpose Amplifier & Switching)
R1.61
TIP32C (PNP Bipolar Power Transistor)
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