ZTX690BSTZ

Series:	--
Packaging:	Tape & Box (TB)
Part Status:	Active
Transistor Type:	NPN
Current - Collector (Ic) (Max):	2A
Voltage - Collector Emitter Breakdown (Max):	45V
Vce Saturation (Max) @ Ib, Ic:	500mV @ 5mA, 1A
Current - Collector Cutoff (Max):	100nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce:	400 @ 1A, 2V
Power - Max:	1W
Frequency - Transition:	150MHz
Operating Temperature:	-55°C ~ 200°C (TJ)
Mounting Type:	Through Hole
Package / Case:	E-Line-3, Formed Leads
Supplier Device Package:	E-Line (TO-92 compatible)
Base Part Number:	ZTX690B

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Introduction

The ZTX690BSTZ is a single transistor manufactured by ON Semiconductor, which is a bipolar junction transistor (BJT) type. Its common application fields are power amplification and switching. This article aims to discuss the application field and working principle of the ZTX690BSTZ.

Bipolar Junction Transistor

A transistor is a semiconductor device used for amplifying and switching electrical signals. It consists of three terminals, namely the base, the collector, and the emitter. The ZTX690BSTZ is a single-transistor type, categorized under the bipolar junction transistor (BJT) family.A BJT is a type of transistor in which the two base terminals are made of doped semiconductor materials. The base of the BJT is connected to a voltage source, allowing current to flow through it. The collector and emitter are connected to a voltage source and to an external circuit, respectively. The collector and emitter current is then control by the base current, thereby amplifying or switching an electrical signal.

ZTX690BSTZ Application Fields

The ZTX690BSTZ, as a single transistor BJT, has two commonly used application fields: power amplification and switching. For power amplification, the ZTX690BSTZ can be used as a single stage audio power amplifier. It can be connected to a power supply and an audio signal source, and then can transfer the audio signal to the external circuit with a much higher power. This allows a higher-powered audio signal to be generated with a lower amount of power consumption.For switching, the ZTX690BSTZ can be used as switches for electronic switching applications. It can be connected to a power supply and an external circuit and then can open/close the switch to control the power flow in the external circuit. It can be used in applications such as circuit control and switch management.

Working Principle

The working principle of the ZTX690BSTZ is based on the characteristics of a BJT. As the two base terminals of the BJT are connected to the power supply, current starts to flow through the base. This current flow then allows electrons to flow from the collector to the emitter, thus creating a flow of current from the collector to the emitter. The amount of current flowing from the collector to the emitter is determined by the voltage source, the current source, and the base current. The voltage source determines the output voltage, while the current source determines the amount of current flowing between the collector and the emitter. The base current determines the amount of current flowing through the base, which in turn determines the amount of current flowing from the collector to the emitter.

Conclusion

The ZTX690BSTZ is a single-transistor type BJT manufactured by ON Semiconductor. It has two main application fields, namely power amplification and switching. The working principle of the ZTX690BSTZ is based on the characteristics of a BJT, in which the amount of current flowing from the collector to the emitter is determined by the voltage source, the current source, and the base current.

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