2SK880-BL(TE85L,F)

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Transistors are used for various purposes in both digital and analog circuits. JFETs, or Junction Field Effect Transistors, are one type of transistor used for various purpose. The 2SK880-BL(TE85L,F) transistor is a popular device for many circuit designs. This article will discuss the 2SK880-BL(TE85L,F) transistor’s application field and working principle.

JFETs uses physical property of semiconductor to control current flow. A JFET transistor consists of three regions: Source, Drain and Channel. The Source is where the input current is applied. The Drain is where the output current is produced. The Channel lies between Source and Drain. The Channel is heavily doped P-type or N-type semiconductor material which is controlled by a Gate voltage. A P-channel JFET has P-type channel and an N-channel JFET has an N-type channel. The current flow between Source and Drain is controlled by a Gate voltage and the current flow is inversely proportional to the Gate voltage.

The main applications of the 2SK880-BL(TE85L,F) transistor are audio pre-amplifiers, input amplifiers and digital switching. This transistor is a P-Channel JFET with a depletion mode substitute for a 2N5458. It has a lower maximum Gate-Source voltage and also a lower Total Gate Charge. The main physical characteristics of the 2SK880-BL(TE85L,F) transistor are as follows: Drain-Source Breakdown Voltage (Vds) is 25V, Gate-Source Breakdown Voltage (Vgs) is 6V, Drain-Source On Resistance (Rds) is 5.4 Ohm, On-State Drain Current (Id) is 11mA and maximum Operating Temperature (Tj) is 150°C.

The 2SK880-BL(TE85L,F) transistor can be used in various applications with the help of these physical characteristics. This transistor is mainly used as an audio preamplifier, input amplifier, and digital control. For audio preamplifier application, this transistor can be used in both FM radio receivers and TV receivers. It’s used for providing gain to the audio signals and also for providing resistance against the interference signals. In input amplifier application, this transistor can be used for boosting up the input signal level. For digital control application, this transistor can be used for controlling signals level and switching them on and off.

The working principle of the 2SK880-BL(TE85L,F) transistor is based on its Gate-Source voltage. When the Gate voltage is larger than zero, the P-type channel is opened and the current begins to flow through the channel. As the Gate voltage increases, the current flow through the channel also increases up to the maximum rated current. When the Gate voltage is lower than zero, the P-type channel is closed and the current flow is decreased. The Gate-Source voltage can also be used to switch the transistor state from the On-state to the Off-state. When the Gate voltage is lower than the threshold point, the P-type channel is closed and the current flow is decreased, which results in the transistor state changing from On-state to Off-state.

In conclusion, the 2SK880-BL(TE85L,F) transistor is a wide used device for various circuit designs. It is a P-Channel JFET and it is mainly used as an audio preamplifier, input amplifier and digital control. The main physical characteristics of this transistor are its Drain-Source breakdown voltage, Gate-Source breakdown voltage, Drain-Source on resistance, on-state drain current and maximum operating temperature. The working principle of the 2SK880-BL(TE85L,F) transistor is based on the Gate-Source voltage which controls the current flow through the P-type channel.

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