STF826

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Transistor Type:	PNP
Current - Collector (Ic) (Max):	3A
Voltage - Collector Emitter Breakdown (Max):	30V
Vce Saturation (Max) @ Ib, Ic:	1.1V @ 150mA, 3A
Current - Collector Cutoff (Max):	100µA
DC Current Gain (hFE) (Min) @ Ic, Vce:	100 @ 100mA, 2V
Power - Max:	1.4W
Frequency - Transition:	100MHz
Operating Temperature:	150°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	TO-243AA
Supplier Device Package:	SOT-89-3
Base Part Number:	STF826

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STF826 Application Field and Working PrincipleThe STF826 is a single bipolar junction transistor (BJT) manufactured by STMicroelectronics. This transistor is primarily used in switching applications, as it can efficiently switch both AC and DC signals. The STF826 is also commonly used in audio amplifiers, instrumentation amplifiers, radio frequency (RF) amplifiers, and other audio-processing circuits.The STF826 is available in a TO-220 package with a peak collector emitter voltage of 400V, a peak base emitter voltage of 56V, and a peak collector current of 600mA. The STF826 has a high gain, wide temperature range, and is uniquely designed to prevent thermal runaway during overload conditions.The STF826 consists of three terminals: the base, the collector, and the emitter. The base is the control terminal, providing access to the currents that flow between the collector and the emitter. By applying a bias voltage to the base, the current flow between the collector and the emitter can be controlled.Under reverse-biased conditions, the base-emitter junction is reverse-biased and no current can flow between the collector and the emitter. This makes the transistor act as an open switch, cutting off the current flow. This configuration is known as the cutoff mode.When the base-emitter junction is forward biased, the current flows between the collector and emitter. This mode is known as the saturation mode, which is the state of the transistor when it is fully on.The STF826 is also known as an NPN transistor. This means that the majority of carriers in the transistor’s channel are negatively charged. As a result, the STF826 will switch current from the collector to the emitter when the base-emitter junction is forward biased.The STF826 is a reliable and cost-effective switch, making it an ideal choice for audio-processing designs. Its high gain and temperature range make it an ideal choice for a wide variety of applications. This versatile transistor is designed to provide reliable operation over a wide voltage range, making it suitable for high-reliability applications in consumer and commercial products.

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