12 best rf transistors

RF transistors, or radio frequency transistors, are semiconductor devices designed specifically to amplify and process high-frequency signals in the radio frequency range. These transistors are a crucial component in various electronic applications, particularly in wireless communication systems, radar systems, and other RF electronics. Here are some key points about RF transistors:

Semiconductor Devices: RF transistors are a type of semiconductor device, like other transistors. They are typically made from semiconductor materials such as silicon, gallium arsenide (GaAs), or silicon carbide (SiC), depending on the specific requirements of the application.
Amplification: One of the primary functions of RF transistors is to amplify radio frequency signals. They can provide gain to weak input signals, making them stronger for transmission or further processing.
Frequency Range: RF transistors are designed to operate in a specific frequency range, typically from a few megahertz (MHz) to several gigahertz (GHz). Different types of RF transistors are available to cover various frequency bands.
Types of RF Transistors:
- Bipolar Junction Transistors (BJT): RF BJTs are commonly used in low to medium power RF amplification applications.
- Field-Effect Transistors (FET): RF FETs are often used in high-frequency applications. They include Metal-Oxide-Semiconductor FETs (MOSFETs) and High Electron Mobility Transistors (HEMTs).
- Heterojunction Bipolar Transistors (HBT): These transistors are designed for high-frequency and high-power applications, often using compound semiconductor materials like GaAs.
Applications: RF transistors are found in a wide range of applications, including:
- Wireless Communication: They are used in cell phones, Wi-Fi routers, and other wireless communication devices to amplify and process signals.
- Radar Systems: RF transistors play a crucial role in radar systems for signal generation and reception.
- Satellite Communication: RF transistors are used in satellite transponders to amplify and retransmit signals.
- Broadcasting: RF transistors are used in broadcast transmitters for radio and television.
Characteristics: RF transistors have specific characteristics that make them suitable for high-frequency applications.These include high cutoff frequencies, low noise figures, and good linearity.
Matching Networks: In RF circuits, matching networks are often used to ensure efficient power transfer between the source and load. RF transistors may require matching networks to optimize their performance.
Thermal Management: RF transistors can generate heat, especially when amplifying high-power signals. Effective thermal management is essential to prevent overheating and maintain performance.
Advancements: The field of RF transistors continues to advance with the development of new materials and fabrication techniques. This leads to improved performance and efficiency in RF electronics.

In summary, RF transistors are specialized semiconductor devices designed for high-frequency signal amplification and processing. They are crucial components in modern communication and radar systems, enabling the transmission and reception of radio frequency signals across various applications.

Below you can find our editor's choice of the best rf transistors on the market

Superele 20pcs 2SC2078 -TO220 27Mhz RF Power Amplifier

Superele

Based on 7 reviews Check latest price

Product description

Model Number: 2SC2078 Contact Load: Low Power is_customized: Yes Supply Voltage: International standard Type: integrated circuit

Model Number: 2SC2078
Contact Load: Low Power
is_customized: Yes
Supply Voltage: International standard
Type: integrated circuit

Elenco AM/FM Radio Kit |Switch Between ICs & Transistors | Lead Free Solder | Great STEM Project | Superheterodyne Designed to AM and FM Broadcasts | SOLDERING REQUIRED

Elenco

Based on 244 reviews Check latest price

Product description

Learn about AM and FM radio technology and the the functional components used in creating AM-FM receivers and amplifiers. 56 page training course is divided into 9 lessons; Audio Amplifier, AM Detector, AM IF, AM Amplifier, AM Mixer & Oscillator, FM Detector, 1st FM IF, 2nd FM IF, FM RF Stages. “Superheterodyne” designed to receive standard AM and FM broadcast frequencies. New transistor module allows you to switch between the modern integrated circuit (IC) technology and the original transistor technology. Includes radio mounting stand. PLEASE NOTE: The AM/FM Radio project is divided into two parts, the AM Radio Section and the FM Radio Section. Initially, only identify the parts that you will need for the AM radio as listed in the manual. DO NOT OPEN the bags listed for the FM radio. A separate parts list will be shown for the FM radio after you have completed the AM radio. 9 volt battery needed but not included.

From the Manufacturer

Model AM/FM-108TK - 4 Transistors, 1 Diode and 1 IC - Training course of 64 pages is divided into 9 lessons: Audio Amplifier, AM Detector, AM IF, AM Amplifier, AM Mixer and Oscillator, FM Detector, 1st FM IF, 2nd FM IF, FM RF Stages. Includes radio mounting stand. Requires one 9V battery. This is an unassembled kit and requires assembly. The most important factor in assembling this Superhet 108 AM/FM Transistor and IC Radio Kit is good soldering techniques. The included Detailed Manual provides easy to follow instructions to learn these techniques and complete this kit.

Do & Learn - Soldering Required
56 page Training Course is divided into 9 lessons
Audio Amp, AM Detector, AM IF, AM Amp, AM Mixer & Oscillator, FM Detector, 2 x FM IF, FM RF Stages
Electronics training course appropriate for High School and University level curriculum
“Superheterodyne” designed to receive standard AM and FM broadcast frequencies
"Superheterodyne” receiver of AM and FM broadcast frequencies
Unique PCB design lets you place parts over corrosponding symbols on the printed circuit board

User questions & answers

Question:	All you need is a soldering iron, flux, and solder nothing fancy
Answer:	They include solder. You do not use separate flux. You need a pencil type 25-40 watt soldering iron. You should have a digital volt meter (even a cheep one will be OK). If you have a signal generator and an oscilloscope it would be of great help if you want to follow the training portion of the manual but they are not absolutely necessary - - I did not have a scope or signal generator and was able to successfully complete this kit. You should have had some practice soldering PC boards before starting this kit.
Question:	where can i buy individual parts for this
Answer:	All of the parts (except, obviously, the PCB and dial label) can be had from Mouser, DigiKey and AliExpress.Mouser has all of the AM transformers (Xicon 42IF### series http://www.mouser.com/Search/Refine.aspx?Keyword=xicon+42if).They had the 10.7MHz family, but it is listed as "Non-Stocked, Call for Quote" meaning they still sell them, but will only do so in bulk (say, 1000 pieces).Mouser also carries all of the passives as well.Via AliExpress you can get the "polyvaricon" tuning capacitor and 10.7MHz IF transformers, too.Here's the antenna http://www.aliexpress.com/item/61cm-7-Section-Telescopic-Antenna-Aerial-for-TV-RC-Controller-FM-AM-Radio/2027302143.htmlHere's a link to a radio kit for $6 that is the best of them and has most of the parts http://www.aliexpress.com/item/Free-Shipping-AM-FM-stereo-AM-radio-kit-DIY-CF210SP-electronic-production-suite/1623114587.htmlOnly drawback to this kit is the selectivity is via ceramic filters, but the polyvaricon and many of the parts are the same. Adjustment and alignment are very easy, too.Go to AliExpress and do a search for "AM FM radio kit" There are some kits that work well and some that can't, but they are a wealth of spare and hard to find parts. http://www.aliexpress.com/wholesale?catId=0&initiative_id=SB_20150411051925&SearchText=am+fm+radio+kitGood hunting!
Question:	what is the recommended age for this kit
Answer:	This kit contains small parts, and soldering is required, with supervision, and comfort with a soldering iron and plenty of room, I would recommend age 10 as a minimum, but depends on the skill level of the builder. My kids enjoyed helping with the various parts and they ranged from 10 years to 6 years. (Tiger)
Question:	Is this doable for a beginner who has never soldered? The other elenco kits just seem too basic
Answer:	If you never soldered, I would not recommend doing that. The kit is relatively easy to solder, and it's doable, but most likely you will need to calibrate your hand on something simpler and the basic kits are inexpensive. As a beginner, the hardest (and funnier) part is to troubleshoot the kit and when I started assembling it, I had one bad solder at the first section. Have fun!

Comidox 5PCS 2SC1969 C1969 TO-220 RF Power Transistor EPITAX IC Chip

Comidox

Based on 6 reviews Check latest price

Product description

Note:

Real colors may slightly differ from the pictures, as it depends on specific monitor settings and light brightness.

We highly appreciate all customers opinions to improve the selling, also if anything you unsatisfied, please contact us for probable best solution.

Package Includes: 5Pcs

Chanzon 5pcs MPF102 TO-92 RF Amplifier 10mA Transistor

CHANZON

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Overview: TO92 RF Amplifier MPF102, Current: 10 mA, Voltage: 25V
Original Transistors Bipolar Junction Triode
For: Electronic DIY Project

NTE Electronics NTE342 NPN Silicon Transistor, RF Power Output, TO220 Type Package, 35V, 2 Amp

NTE Electronics

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Product description

The NTE342 is a silicon NPN epitaxial planer type transistor designed for RF power amplifiers on VHF band mobile radio applications.

NTE Electronics NTE236 NPN Silicon Transistor, Final RF Power Output, TO220AB Type Package, 60V, 6 Amp

NTE Electronics, Inc.

Based on 2 reviews Check latest price

Product description

The NTE236 is a silicon NPN transistor in a TO220AB type package designed for 10−14 watt output power class AB amplifier applications in the HF band.

PANASONIC RF-562D AM FM SW Shortwave Transistor Radio - Retro Design (Battery operated)

Panasonic

Based on 172 reviews Check latest price

Product description

FM/MW/SW 3-Band Reception. High Quality Sound. Easy-to-Use Design. Large Tuning / Volume Knob.

Power Output (RMS max.) : 800mW
Frequency Range : FM 88 - 108MHz MW 530 - 1605kHz SW 4.75 - 18MHz
Speaker Size : 8 cm
Dimensions (W x H x D) : 210 x 120 x 65 mm
Weight (Without batteries) : 650 g

User questions & answers

Question:	what are the dimensions of this radio
Answer:	Roughly 8 1/2" x 4 3/4" x 2 1/2" with the thin cas on it, it is a good radio a bit primitive to tune on SW but, with a external long wire antenna , AM and FM Works great after you get how the tuning works. Great speaker lot's of volume. The headphone jack is monaural, you can get a adapter $4.00 0n amazon and it will play on both sides of the headphones. However the sound on the speaker is much better
Question:	Is there battery included
Answer:	No batteries included
Question:	By which it is made ? Is by japan
Answer:	it is made in Indonesia. The radio works great on all bands and the sound is wonderful. Good luck.
Question:	I can listen to bbc news form it
Answer:	BBC World stopped broadcasting to the US in 2001. I use to listen on 5975khz at night all the time. It's either NPR (ugh) or SiriusXM satellite radio in the US anymore.

Todiys New 30Pcs for BF199 50mA 25V to-92 RF Medium Frequency NPN Transistors BF199-W

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Product description

Compatible P/N:

BF199 BF199-W

Description:

Condition: 100% Brand New And High Quality

Material: Electrical Components

Color: See Pictures

Encapsulation: to-92

Size: 18.5mm x 4.5mm x 3.5mm

Quantity: 30 Pcs

NOTE: Kindly compare your original item with the photos provided for the listing to make sure that you are purchasing the correct part. we don't provide technical assistance please make sure you are familiar with the product before purchasing. apologize in advance.

Item Condition: Brand New
12 Months Quality Warranty
Actual item as shown in photos
Random send the part number
NOTE: Kindly compare your original item with the photos provided for the listing to make sure that you are purchasing the correct part. we don't provide technical assistance please make sure you are familiar with the product before purchasing. apologize in advance.

NTE Electronics NTE478 NPN Silicon Transistor, RF Power Output, 36V, 15 Amp

NTE Electronics, Inc.

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Product description

The NTE478 is a 12.5 Volt epitaxial silicon NPN planar transistor designed primarily for VHF communications. This device utilizes diffused emitter resistors to achieve infinite VSWR under operating conditions, and is internally input matched to optimize power gain and efficiency over the band.

10PCS BFG135 BFG135A NPN Silicon RF Transistor SOT-223

FlyNoval

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Product description

10PCS BFG135 BFG135A NPN Silicon RF Transistor SOT-223

10PCS BFG135 BFG135A NPN Silicon RF Transistor SOT-223

200pcs S9018 SS9018 9018 RF Bipolar Transistors NPN/30V/50mA TO-92 New Original

MiZOELEC

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The item is good quality. Package reference weight:Weight:0.5kg (1.10lb.)
Estimated Delivery Time:6-24 days(trackable). We provide Expedited Shipping service use DHL or UPS: 2-7 days.(excluding handling time).If the order amount above US $120, we will use Expedited Shipping service for free.
We attach great importance to product quality!!!We are a professional manufacturer and supplier of electronic products.We have registered trademarks in the United States. Please identify our brand "mizoelec".
We also provide a lot of rare electronic accessories.You can search the model number on our store.
We make every effort to provide customers with satisfactory service.any question,please feel free to contact me.have a great day!

NTE Electronics 2N3819 N-Channel RF Amplifier Transistor, 2-20 mA, 25V

NTE Electronics

Based on 1 reviews Check latest price

Product description

The 2N3819 is a N-Channel RF Amplifier transistor designed for RF amplifier and mixer applications operating up to 450Mhz, and for analog switching requiring low capacitance.