Transistors - Bipolar (BJT) - RF

Category Introduction

Bipolar RF Transistors are semiconductor devices with three terminals that are used to switch or amplify signals in equipment involving radio frequencies. Bipolar junction transistors are designed as either NPN or PNP, with characteristics of transistor type, collector-emitter breakdown voltage, transition frequency, noise figure, gain, power, DC current gain, and collector current.

Product List

1795 Items

Mfr Part #	Quantity Available	UnitPrice	Packaging	Product Status	Transistor Type	Voltage - Collector Emitter Breakdown (Max)	Frequency - Transition	Noise Figure (dB Typ @ f)	Gain	Power - Max	DC Current Gain (hFE) (Min) @ Ic, Vce	Current - Collector (Ic) (Max)	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package
BFR360FH6327XTSA1 RF TRANS NPN 9V 14GHZ TSFP-3 Infineon Technologies	545	$0.49	Tape & Reel (TR)	Active	NPN	9V	14GHz	1dB @ 1.8GHz	15.5dB	210mW	90 @ 15mA, 3V	35mA	150°C (TJ)	Surface Mount	SOT-723	PG-TSFP-3
BFR93AWH6327XTSA1 RF TRANS NPN 12V 6GHZ SOT323-3 Infineon Technologies	1,305	$0.48	Tape & Reel (TR)	Active	NPN	12V	6GHz	1.5dB ~ 2.6dB @ 900MHz ~ 1.8GHz	10.5dB ~ 15.5dB	300mW	70 @ 30mA, 8V	90mA	150°C (TJ)	Surface Mount	SC-70, SOT-323	PG-SOT323
BFP640H6327XTSA1 RF TRANS NPN 4.5V 40GHZ SOT343-4 Infineon Technologies	723	$0.61	Tape & Reel (TR)	Active	NPN	4.5V	40GHz	0.65dB ~ 1.2dB @ 1.8GHz ~ 6GHz	12.5dB	200mW	110 @ 30mA, 3V	50mA	150°C (TJ)	Surface Mount	SC-82A, SOT-343	PG-SOT343-3D
BFP650H6327XTSA1 RF TRANS NPN 4.5V 37GHZ SOT343-4 Infineon Technologies	1,204	$0.60	Tape & Reel (TR)	Active	NPN	4.5V	37GHz	0.8dB ~ 1.9dB @ 1.8GHz ~ 6GHz	10.5dB ~ 21.5dB	500mW	110 @ 80mA, 3V	150mA	150°C (TJ)	Surface Mount	SC-82A, SOT-343	PG-SOT343-3D
BFP420H6327XTSA1 RF TRANS NPN 5V 25GHZ SOT343 Infineon Technologies	1,416	$0.68	Tape & Reel (TR)	Active	NPN	5V	25GHz	1.1dB @ 1.8GHz	21dB	160mW	60 @ 20mA, 4V	35mA	150°C (TJ)	Surface Mount	SC-82A, SOT-343	PG-SOT343-3D
BFP450H6327XTSA1 RF TRANS NPN 5V 24GHZ SOT343-4 Infineon Technologies	1,306	$0.71	Tape & Reel (TR)	Active	NPN	5V	24GHz	1.25dB @ 1.8GHz	15.5dB	450mW	60 @ 50mA, 4V	100mA	150°C (TJ)	Surface Mount	SC-82A, SOT-343	PG-SOT343-3D
BFS483H6327XTSA1 RF TRANS 2 NPN 12V 8GHZ SOT363-6 Infineon Technologies	78	$0.81	Tape & Reel (TR)	Active	2 NPN (Dual)	12V	8GHz	0.9dB ~ 1.4dB @ 900MHz ~ 1.8GHz	19dB	450mW	70 @ 15mA, 8V	65mA	150°C (TJ)	Surface Mount	6-VSSOP, SC-88, SOT-363	PG-SOT363-PO
HFA3096BZ96 RF TRANS 12/15V 5.5GHZ 16SOIC Renesas Electronics America Inc	66	$11.55	Tape & Reel (TR)	Active	3 NPN + 2 PNP	12V, 15V	8GHz, 5.5GHz	3.5dB @ 1GHz	-	150mW	40 @ 10mA, 2V / 20 @ 10mA, 2V	65mA	150°C (TJ)	Surface Mount	16-SOIC (0.154", 3.90mm Width)	16-SOIC
MRF428 RF TRANS NPN 55V 211-11 MACOM Technology Solutions	7	$127.35	Tray	Active	NPN	55V	-	-	15dB	150W	10 @ 5A, 5V	20A	-	Chassis Mount	211-11, Style 2	211-11, Style 2
MRF448 RF TRANS NPN 50V 211-11 MACOM Technology Solutions	5	$161.37	Tray	Active	NPN	50V	-	-	14dB	250W	10 @ 5A, 10V	16A	-	Chassis Mount	211-11, Style 2	211-11, Style 2
MMBTH10-7-F RF TRANS NPN 25V 650MHZ SOT23-3 Diodes Incorporated	2,777	$0.25	Tape & Reel (TR)	Active	NPN	25V	650MHz	-	-	300mW	60 @ 4mA, 10V	50mA	-55°C ~ 150°C (TJ)	Surface Mount	TO-236-3, SC-59, SOT-23-3	SOT-23-3
KST10MTF RF TRANS NPN 25V 650MHZ SOT23-3 onsemi	811	$0.26	Tape & Reel (TR)	Active	NPN	25V	650MHz	-	-	350mW	60 @ 4mA, 10V	-	-	Surface Mount	TO-236-3, SC-59, SOT-23-3	SOT-23-3
MMBTH10LT1G RF TRANS NPN 25V 650MHZ SOT23-3 onsemi	2,350	$0.28	Tape & Reel (TR)	Active	NPN	25V	650MHz	-	-	225mW	60 @ 4mA, 10V	-	-55°C ~ 150°C (TJ)	Surface Mount	TO-236-3, SC-59, SOT-23-3	SOT-23-3 (TO-236)
KSP10TA RF TRANS NPN 25V 650MHZ TO92-3 onsemi	1,500	$0.35	Cut Tape (CT)	Active	NPN	25V	650MHz	-	-	350mW	60 @ 4mA, 10V	-	150°C (TJ)	Through Hole	TO-226-3, TO-92-3 (TO-226AA) Formed Leads	TO-92-3
BFR181WH6327XTSA1 RF TRANS NPN 12V 8GHZ SOT323-3 Infineon Technologies	122	$0.41	Tape & Reel (TR)	Active	NPN	12V	8GHz	0.9dB ~ 1.2dB @ 900MHz ~ 1.8GHz	19dB	175mW	70 @ 5mA, 8V	20mA	150°C (TJ)	Surface Mount	SC-70, SOT-323	PG-SOT323
BFR182WH6327XTSA1 RF TRANS NPN 12V 8GHZ SOT323-3 Infineon Technologies	526	$0.41	Tape & Reel (TR)	Active	NPN	12V	8GHz	0.9dB ~ 1.3dB @ 900MHz ~ 1.8GHz	19dB	250mW	70 @ 10mA, 8V	35mA	150°C (TJ)	Surface Mount	SC-70, SOT-323	PG-SOT323
2SC2714-Y(TE85L,F) RF TRANS NPN 30V 550MHZ SMINI Toshiba Semiconductor and Storage	1,400	$0.46	Tape & Reel (TR)	Active	NPN	30V	550MHz	2.5dB @ 100MHz	23dB	100mW	100 @ 1mA, 6V	20mA	125°C (TJ)	Surface Mount	TO-236-3, SC-59, SOT-23-3	S-Mini
BFP193WH6327XTSA1 RF TRANS NPN 12V 8GHZ SOT343-4 Infineon Technologies	568	$0.49	Tape & Reel (TR)	Active	NPN	12V	8GHz	1dB ~ 1.6dB @ 900MHz ~ 1.8GHz	13.5dB ~ 20.5dB	580mW	70 @ 30mA, 8V	80mA	150°C (TJ)	Surface Mount	SC-82A, SOT-343	PG-SOT343-3D
BFR92PE6327HTSA1 RF TRANS NPN 15V 5GHZ SOT23-3 Infineon Technologies	1,379	$0.43	Tape & Reel (TR)	Active	NPN	15V	5GHz	1.4dB ~ 2dB @ 900MHz ~ 1.8GHz	10.5dB ~ 16dB	280mW	70 @ 15mA, 8V	45mA	150°C (TJ)	Surface Mount	TO-236-3, SC-59, SOT-23-3	PG-SOT23
BFR380FH6327XTSA1 RF TRANS NPN 9V 14GHZ TSFP-3 Infineon Technologies	1,598	$0.43	Tape & Reel (TR)	Active	NPN	9V	14GHz	1.1dB ~ 1.6dB @ 1.8GHz ~ 3GHz	9.5dB ~ 13.5dB	380mW	90 @ 40mA, 3V	80mA	150°C (TJ)	Surface Mount	SOT-723	PG-TSFP-3

About Bipolar RF Transistors

What are Bipolar RF Transistors?

Bipolar RF Transistors

Bipolar RF Transistors are a type of semiconductor device used to amplify or switch radio frequency (RF) signals. They operate by using a small input current to control a larger output current, effectively amplifying the signal. The basic operating principle involves three layers of semiconductor material, forming two p-n junctions. These layers are known as the emitter, base, and collector. When a small current is applied to the base, it allows a larger current to flow from the collector to the emitter, thus amplifying the signal. Bipolar RF Transistors are essential in RF applications due to their ability to handle high frequencies and power levels efficiently.

Types of Bipolar RF Transistors

1. NPN Bipolar RF Transistors

NPN Bipolar RF Transistors are the most common type, characterized by their ability to amplify signals when a positive voltage is applied to the base relative to the emitter. They are widely used in high-frequency applications due to their fast switching capabilities and high gain. NPN transistors are preferred for their efficiency in handling high power levels and are often used in RF amplifiers and oscillators.

2. PNP Bipolar RF Transistors

PNP Bipolar RF Transistors operate with a negative voltage applied to the base relative to the emitter. They are less common than NPN transistors but are used in specific applications where a negative supply voltage is available. PNP transistors are known for their ability to provide high current gain and are often used in complementary push-pull amplifier configurations.

3. High-Frequency Bipolar RF Transistors

These transistors are specially designed to operate at very high frequencies, often exceeding several gigahertz. They feature optimized structures to minimize parasitic capacitance and inductance, allowing them to perform efficiently in RF circuits. High-frequency bipolar RF transistors are crucial in applications such as wireless communication and radar systems.

How to choose Bipolar RF Transistors?

When selecting Bipolar RF Transistors, several key parameters must be considered:

Frequency Range: Ensure the transistor can operate efficiently within the desired frequency range of your application.
Gain: Choose a transistor with sufficient gain to meet the amplification requirements.
Power Handling: Consider the maximum power the transistor can handle without degradation.
Noise Figure: Select a transistor with a low noise figure for applications requiring high signal integrity.
Thermal Stability: Evaluate the transistor's ability to maintain performance under varying temperature conditions.

To assess product quality and reliability, review supplier datasheets, customer reviews, and industry certifications. Consider environmental factors such as temperature, humidity, and potential exposure to corrosive elements. Ensure proper installation with adequate heat dissipation and shielding to prevent interference.

Applications of Bipolar RF Transistors

1. Telecommunications

In the telecommunications industry, Bipolar RF Transistors are used in RF amplifiers and signal boosters to enhance the strength and quality of wireless communication signals. They are essential in base stations, mobile devices, and satellite communication systems.

2. Broadcasting

Broadcasting applications rely on Bipolar RF Transistors to amplify radio and television signals for transmission over long distances. They are used in transmitters and repeaters to ensure clear and consistent signal delivery to receivers.

3. Aerospace and Defense

In aerospace and defense, these transistors are integral to radar systems, electronic warfare, and communication systems. Their ability to handle high frequencies and power levels makes them suitable for demanding military applications.

4. Consumer Electronics

Bipolar RF Transistors are found in various consumer electronics, including radios, televisions, and wireless devices. They help improve signal reception and transmission, enhancing the overall user experience.

5. Industrial Automation

In industrial automation, these transistors are used in RF communication modules for remote monitoring and control systems. They enable reliable wireless communication between devices in automated processes.