Field Effect Transistor
Rely on an electric field to control the shape and channel of a charge carrier in a semiconductor material.
See Also: Transistor, NPN Transistor
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Product
Rad Hard GaN FETs
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Wide band gap semiconductor technologies such as Gallim Nitride Field Effect Transistors (GaN FETs) have been gaining interest for power management and conversion in space applications. These devices feature higher breakdown voltage, lower RDS(ON) and very low gate charge enabling power management systems to operate at higher switching frequencies while still achieving higher efficiency and a smaller solution footprint. There is an additional benefit from GaN devices that make them attractive to the space market. These devices are inherently immune to total ionizing dose radiation.
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Product
Rad Hard GaN Drivers
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The space market has been driving towards more efficient power management solutions. Part of the drive includes the use of Gallium Nitride Field Effect Transistors (GaN FETs) for power conversion. GaN FETs have higher power conversion efficiency and have more natural immunity to radiation, due to them being wide-bandgap semiconductors. Equally important is the use of the correct driver that will allow reliable operation and maximize the benefits of the GaN FETs. Some of the key driver requirements are: a well-regulated gate drive voltage; high source/sink current capability and a split driver output stage.
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Product
High Impedance Preamplifier
1671
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The Model 1671 is a single ended low noise field effect transistor
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Discrete Devices High-speed Testing System
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QT-6000 discrete device high-speed testing machine is suitable for testing small and medium-power diodes, transistors, field effect transistors and other products and wafers. It can expand built-in capacitance testing (DC+CAP), EAS, VC, pA modules, as well as external LCR (ultra high precision capacitance testing), Scanbox, etc. The machine can be used for FT mass production testing or laboratory testing.
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Product
Field Effect Rectifiers
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ST field-effect rectifier diodes (FERD) help improve designs with new versions focusing on trade-off upgrades. Field-effect rectifier diodes belong to our STPOWER family. The design of the FERDs has allowed both a decrease in the voltage drop and a decrease in the leakage current temperature coefficient. As a result, the runaway safety margin is improved and maybe beyond the typical safety margin of Schottky barrier diodes.
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Transistor Testing
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Radiant is introducing an I2C digital-to-analog converter product that can be attached to the Precision Premier II and is controlled from Vision. The addition of this extra voltage source makes it possible for the Premier II to measure the performance of thin-ferroelectric-film gate transistors (TFFTs and MFSFETs). This document explains the theory for such testing and gives examples of such tests using Radiant's SFRAM transistors as examples.
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Product
Effectiveness
Shielding
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The Sielding Effectiveness (SE) is measured in accordance withMil-Std. 285, NSA 65-6 and EN 50147 1.
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Product
Shielding Effectiveness
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Radiometrics Midwest Corporation
One of the more difficult tests to understand is shielding effectiveness or transfer impedance. The data from these tests may vary dramatically based on the test method selected, test fixture, test setup, measurement sensitivity, test personnel, etc. At Radiometrics all shielding effectiveness test are performed or supervised by NARTE Certified engineers.
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Transistor Tester
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*Measure rich DC parameters of maniford semiconductors, e.g. diode, transistor, controlled silicon, FET.*Measure capacitor, varistor, DC voltage signal source*Measure 78 and 79 three terminal voltage regulator*Data hold, low battery warning*Complete with carry case and six 1.5V AA batteries
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Product
Resistivity and Hall Effect
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The Resistivity System allows the user to make Resistivity and Hall Effect measurements in the range of to M. Samples are mounted on special platforms inside the VTI with contacts made to the sample according to the customer's requirements.
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Product
Matched Transistors
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Analog Devices offers dual and quad transistors with excellent matching characteristics. Offset voltages, temperature drift, and hFE matching are individually tested to data sheet specifications. Device performance is guaranteed over industrial and military temperature ranges. Each of these devices is an excellent choice as an input stage for an amplifier or in log/antilog circuits. ADI’s matched transistors offer low noise and high gain, with characteristics approaching an ideal transistor.
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Bipolar Power Transistors
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A wide variety of products are rolled out, for example, for uses at high temperature (up to 175°C applicable), high power, and low Vce (sat), and others.
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Field Test
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Field test equipment is an optimised solution for large system testing, which, thanks to its distributed architecture, enables the placement of several small-sized testing systems.
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Field Analyzers
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Active broadband isotropic antenna combined with portable USB powered spectrum analyzer. OFA-S/SE antenna has frequency response independent of antenna or electric field orientation. It offers broad dynamic range for the variety of RF regulatory, safety, EMC, wireless and telecommunications applications. Spectrum analyzer SA-S displays the frequencies and field strength of selected signals, allowing all results to be viewed and stored on PC.
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Product
Field Bag
1048
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TESCO has recently updated the Field Bag. The newer Field Bag is slightly smaller than the previous version. The bag features a large main compartment with a removable divider, and two smaller side pockets. The Field Bag comes with a shoulder strap, for ease of mobility. The Field Bag measures 16″ x 8.75″ x 7.5″ (L x H x D).
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Photocouplers/Optocouplers Transistor Output
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The PS2xxx series, a range of transistor output type general-purpose photocouplers (optocouplers), feature a high isolation voltage, high temperature operation and compliance with various international safety standards.
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Hall Effect Probes
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Magnetic Instrumentation manufactures Hall Effect Probes in a wide range of styles and sizes. Probes are supplied with magnetic, electrical, temperature stability and calibration data for each measurement range.
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Magnetic Field Sensors
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Our cylinder sensors for pull rod cylinders can be integrated into many applications. They are mounted with mounting brackets on cylinders with tie rods and DUO rails. The concept is suitable for the most common types of cylinders with any piston diameter. Features: contact-free detection of the piston position, tie rod Ø up to 17 mm, reliable switching behavior, wear-free, resistant to dirt, secure grip, easy installation.
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Product
Field Strength Receiver
KH3933
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Beijing KeHuan Century EMC Technology Co,.LTD
KH3933 is a fully automatic interference field strength receiver integrating antenna and receiver. It is an important equipment for space field strength testing. It can be used to measure useless or harmful related radio interference signals in space, as well as medium wave and short wave. The field strength of the radio signal from a radio station. When measuring radio interference signals, this machine complies with GB/15707-1995 , DL/T691-1999 , and is suitable for high-voltage transmission lines and substation radio interference signals. This receiver complies with CISPR16-1 and GB6113-1 manufacturing standards.
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Hall Effect Sensor
907 XP (Explosion Proof)
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Features • NPN open collector, square-wave output • Zero speed operation with no signal loss • Non-contact, large gap distance sensing • Signal transmits up to 1,500 ft • Simple to install and set up • Powered by 5-24 VDC • Class I, Div I (D) Class II, Div I (E, F, G) Class III • XLB-3 enclosure • Bi-directional option (907B XP)
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Product
Field Emission SEM
FESEM
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Materials Evaluation and Engineering
The FESEM is an advanced microscope offering increased magnification and the ability to observe very fine features at a lower voltage than the SEM found in most laboratories.
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Hall Effect Sensors
906
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Features • NPN open collector, square-wave output • Zero speed operation with no signal loss • Non-contact, large gap distance sensing • Signal transmits up to 1,500 ft • Simple to install and set up • Powered by 5-24 VDC • Bi-directional option 906B
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Product
Hall Effect Proximity Switches/Sensors
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ChenYang Technologies GmbH & Co. KG
A Hall Effect proximity switch is a non-contact electronic switch, which consist of a permanent magnet or ferromagnetic part as trigger intermediary and a Hall Effect sensor IC. The Hall sensor IC detects the change of the magnet field when the permanent magnet comes in the close proximity to it and generates an electric signal. This signal is amplified and rectified to control the output signal of the switch.
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Product
Probes, Magnetic Field
EM-6881 | 480 KHz To 30 MHz
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The EM-6880, EM-6881 and EM-6882 Magnetic Field Probes operate in conjunction with any 50 ohm input impedance receivers.
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Product
Field Intensity Meter
LM870-W
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Sichuan Jiuzhou Electronic Technology Co.,Ltd
* Trunk-line AC voltage, V/A, C/N and TILT measurable* Automatic over-voltage shut-off protection* AC/DC optional (Ni-H/Li storage battery inside)* Full-digital key-board operation, direct freq. & channel input* Automatic scanning, Automatic channel-filtering, Automatic error-operation amending* All standard channels and subjoin channels pre-set inside* New channel-table setting according to user's special requirement* Spectrum displaying* English/Chinese operation interface* Audio output (speaker set-in)
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Hall Effect Measurement Equipment
HEM
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The physical quantity of Hall Coefficient, Hall Mobility and Carrier Density etc. can be investigated by measuring at room temperature voltage occurred perpendicularly to the both magnetic field and constant-current when flowing constant-current perpendicularly to magnetic field from current source while applying magnetic field to sample set at the center of magnetic field of magnet.
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Field Simulation Software
QuickField™
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QuickField™ is a very efficient Finite Element Analysis package for electromagnetic, thermal, and stress design simulation with coupled multi-field analysis.
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Hall Effect Measurement system
HMS-3300
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Magnetic flux density : 0.55Tesla (+/-0.03T)Gap distance between both round magnets : 26mm / Round magnet diameter : 50mmMeasurable temp : RT ~ 300℃(model# HT55T3). Resolution : 0.1℃(Model# HT55T5 : RT ~ 500℃)Both HT55T3 and HT55T5 are only capable of using with HMS-3000 main body.(Not compatible with HMS-5000 )- You can flow purge gas into small chamber and measure hall effect at the same time. Gas control valve can be installed as an option.
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Hall Effect Measurement system
HMS-5000
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Constant current source + Van der Pauw method terminal conversion system
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Product
Hall Effect Vane Sensors
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ChenYang Technologies GmbH & Co. KG
ChenYang Technologies GmbH & Co. KG supplies various kinds of Hall Effect vane sensors (CYHME301, CYHME56, CYHME2000) for speed measurement with applications to machines, equipments, motorcycles (BMW ), automobile industry etc. We are specialised in design, development and production of Hall-effect sensors and can offer also custom Hall sensors for your special applications.
