BF545B,215

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Transistor Type:	N-Channel JFET
Frequency:	--
Gain:	--
Current Rating:	15mA
Noise Figure:	--
Power - Output:	--
Voltage - Rated:	30V
Package / Case:	TO-236-3, SC-59, SOT-23-3
Supplier Device Package:	TO-236AB (SOT23)
Base Part Number:	BF545

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BF545B,215 Application Field and Working Principle

BF545B,215 are a family of high power field-effect transistors (FETs) used in a variety of applications. These devices are typically used for RF switching and for RF power amplification. These devices are also used in various high voltage, high current and high efficiency circuits.The device consists of two or four highly conductive regions usually referred to as the “source” and the “drain”. A potential applied to the gate electrode controls the flow of current between the source and the drain. This is the principle of operation that enables the device to amplifiy electricity.The BF545B,215 is designed to operate as an RF switch. It is operated with a gate voltage which is typically generated by a micro-processor or radio frequency (RF) switch controller. The device has a maximum CV rating of up to 20V and a maximum conducting current (I-D) of 300mA.When the gate voltage is switched on, the BF545B,215 turns on and conducts current from the source to the drain. The device has a fast switching speed that enables it to switch from off to on in less than 10 nanoseconds. This enables it to be used in high speed RF circuits.The device also has a relatively low input capacitance which enables it to be used in high frequency applications. It has a high breakdown voltage and high power dissipation which enables it to handle high power applications. The device also has an adjustable gate-drain capacitance which can be used to optimize the switch performance.The device is also designed to operate in the temperature range of -55 to +150°C and has a wide range of available packages. The most common packages available are surface mount and through-hole. The device can be soldered directly to a PCB or used with a socket.The most common applications of the BF545B,215 are in high power RF switching, high efficiency DC/DC switching and in high performance RF power amplifiers. The device is also used in short wave radio and satellite communication systems.The BF545B,215 is a reliable and efficient device with many advantages. The device has a wide range of available packages, a wide operating temperature range, high voltage and current ratings, low input capacitance and a fast switching time. This makes it an ideal solution for many different applications.

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