J105_D27Z

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
FET Type:	N-Channel
Voltage - Breakdown (V(BR)GSS):	25V
Current - Drain (Idss) @ Vds (Vgs=0):	500mA @ 15V
Voltage - Cutoff (VGS off) @ Id:	4.5V @ 1µA
Input Capacitance (Ciss) (Max) @ Vds:	--
Resistance - RDS(On):	3 Ohms
Power - Max:	625mW
Operating Temperature:	-55°C ~ 150°C (TJ)
Mounting Type:	Through Hole
Package / Case:	TO-226-3, TO-92-3 (TO-226AA) (Formed Leads)
Supplier Device Package:	TO-92-3

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J105_D27Z application field and working principle

Introduction

The J105_D27Z is a JFET (junction field-effect transistor) which is widely used in many applications. The transistor is available in both surface mounted and through-hole packages, has low threshold gate voltage, high gate current capabilities and low turn on resistance. It is a suitable replacement for the MOSFET in many low-power switch and amplifier circuits. This article discusses the application fields and working principle of the J105_D27Z.

Application fields

The J105_D27Z is a versatile transistor that can be used in many applications, including amplifiers circuits, low-power switch circuits, audio amplifiers, radio transmitters and receivers, power supply stabilizers, switching circuits, voltage regulators, battery monitors, current sensors and more.The J105_D27Z is a good choice for amplifier circuits as it provides low distortion, precise gain and minimal noise. It is ideal for low-power switch applications as it has low turn-on resistance, high gate current capabilities, and low threshold voltage. It can be used in audio amplifiers, radio transmitters and receivers, power supply stabilizers and other circuits where power management and accurate performance is required.The J105_D27Z is well suited for voltage regulators and battery monitors. The low turn-on resistance allows the transistor to accurately regulate the voltage and current with minimal loss, making it ideal for these applications.The device is also used as a current sensor in motor drivers and power supply applications. The low on-resistance enables the transistor to accurately detect and regulate the current, ensuring a reliable and efficient power supply.

Working principle

The J105_D27Z is a junction FET (jFET) which operates in depletion mode. It has a source, drain and gate connection. When a voltage is applied to the gate, electrons are drawn from the substrate region under the gate, resulting in a depletion region around the gate. This increases the resistance between the source and drain.The J105_D27Z can be used to switch or amplify signals. In a switch circuit, the transistor amplifies the input signal and then switches it on or off. In an amplifier circuit, the transistor amplifies the input signal and sends it out to the load.The J105_D27Z has high gate current capabilities, allowing the transistor to provide accurate gain and low distortion. The low on-resistance also ensures a low noise output.

Conclusion

The J105_D27Z is a versatile JFET that can be used in a variety of applications. It is a suitable replacement for the MOSFET in many low-power switch and amplifier circuits. It is well-suited for voltage regulators and battery monitors, current sensors, amplifier circuits and other applications that require accurate performance, low distortion, minimal noise and good power management. The J105_D27Z works by creating a depletion region around the gate when a voltage is applied, resulting in increased resistance between the source and drain.

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