2SB1122T-TD-E

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Transistor Type:	PNP
Current - Collector (Ic) (Max):	1A
Voltage - Collector Emitter Breakdown (Max):	50V
Vce Saturation (Max) @ Ib, Ic:	500mV @ 50mA, 500mA
Current - Collector Cutoff (Max):	100nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce:	100 @ 100mA, 2V
Power - Max:	500mW
Frequency - Transition:	150MHz
Operating Temperature:	150°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	TO-243AA
Supplier Device Package:	PCP

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Introduction

2SB1122T-TD-E, which falls under the Transistors - Bipolar (BJT) - Single categorization, is a high-voltage and high-power device suitable for voltage regulator, reliability and long operating temperature range. Its built-in temperature protection circuitry allows for operation at up to 150°C junction temperature, which makes it a preferable choice for a variety of applications.

Application field and working principle of 2SB1122T-TD-E

2SB1122T-TD-E is suitable for a variety of applications such as voltage regulators, lighting systems, automotive applications, motor control, audio circuits, switching power supplies, and industrial power control. It can be used as a single-stage or multi-stage voltage regulator, either with a pass-transistor or current regulator. This capability makes it possible to reduce the number of elements used in the circuit and helps to simplify the circuits required in these applications.In addition, 2SB1122T-TD-E can be used in current-mode control systems due to its superior combination of high-voltage, high-power, and temperature protection. Its built-in temperature protection circuitry allows for operation at up to 150°C junction temperature, making it particularly well-suited for applications that require extended operational times under extreme temperature conditions.The working principle of 2SB1122T-TD-E can be divided into three main categories: input stage, output stage, and feedback stage. The input stage consists of two resistors and a pair of transistors. These transistors act as an amplifier, converting an input signal into an output signal. The output stage consists of two transistors, a rectifier and an output filter capacitor. The rectifier converts the output signal into a low-voltage, high-current signal suitable for the load, while the filter capacitor smooths out the signal. The feedback stage sends a signal back to the input stage, allowing it to adjust the voltage and current levels being supplied to the load.

Conclusion

2SB1122T-TD-E is a reliable and versatile device suitable for a variety of applications, making it an ideal choice for voltage regulator, lighting systems, automotive applications, motor control, audio circuits, switching power supplies, and industrial power control. Its built-in temperature protection circuitry allows for operation at up to 150°C junction temperature, making it particularly well-suited for applications that require extended operational times under extreme temperature conditions. With its superior performance, 2SB1122T-TD-E has become a popular choice for many applications.

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