BSS123_D87Z

Gate Charge (Qg) (Max) @ Vgs:	2.5nC @ 10V
Base Part Number:	BSS123
Package / Case:	TO-236-3, SC-59, SOT-23-3
Supplier Device Package:	SOT-23-3
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 150°C (TJ)
Power Dissipation (Max):	360mW (Ta)
FET Feature:	--
Input Capacitance (Ciss) (Max) @ Vds:	73pF @ 25V
Vgs (Max):	±20V
Series:	--
Vgs(th) (Max) @ Id:	2V @ 1mA
Rds On (Max) @ Id, Vgs:	6 Ohm @ 170mA, 10V
Drive Voltage (Max Rds On, Min Rds On):	4.5V, 10V
Current - Continuous Drain (Id) @ 25°C:	170mA (Ta)
Drain to Source Voltage (Vdss):	100V
Technology:	MOSFET (Metal Oxide)
FET Type:	N-Channel
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Introduction

BSS123_D87Z is a type of single FET (field-effect transistor) that is predominantly used as a switch in integrated circuits. The device has a positively-charged gate, or input, and a negatively-charged drain and source, or outputs. It is designed to switch between two distinct states, either on or off. Though there are many varieties of FETs, the BSS123_D87Z is the most common type used in electronic circuits.

Application Field

The BSS123_D87Z is most commonly used as a switch in advanced ICs, especially those that are used in portable electronics such as laptops, tablets, and smartphones. It is also used in high-power electronic devices such as power supplies. It is widely used in automotive, aerospace, medical, and communications fields for high-frequency switching applications, as well as for regulating the flow of current in circuit boards.

Working Principle

The BSS123_D87Z operates by manipulating an electric field at the gate, or input, of the device. When the electric field is applied to the gate, an electric potential is created that then provides the necessary force to move electrical carriers (electrons or holes) to the drain and source, or outputs. The difference in potential between the gate and the drain and source is what creates the switching effect.The device has two distinct states that it can switch between. When the input voltage is below the “threshold voltage”, the device is in the off or non-conductive state. When the input voltage is above the threshold voltage, the device is in the on or conductive state. This switching action makes the BSS123_D87Z perfect for applications where precise, fast switching is required.

Conclusion

The BSS123_D87Z is a type of single FET that is widely used for various switching applications. It is commonly used in portable electronic devices, high power electronic devices, automotive, aerospace, medical, and communications fields. The device works by manipulating an electric field at the gate, resulting in a switching action between two distinct states. This makes the BSS123_D87Z perfect for applications where precise, fast switching is required.

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