Zener Diode
current flow from cathode to anode reverses when zener voltage reached.
See Also: Diode, Laser Diode, Diode Test, Photodiode
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Atlas ZEN Zener Diode Analyser
ZEN50
The Atlas ZEN is ideal for testing Zener diodes (including avalanche diodes), transient suppressors, LEDs and LED strings.
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Shunt Voltage References
Analog Devices offers a broad line of shunt precision voltage references that combine excellent accuracy and temperature stability with low noise and small packages. These devices operate in a manner that is functionally equivalent to a Zener diode. The bias current must be set higher than the sum of the maximum quiescent current of the voltage reference and the maximum expected load current. Since shunt voltage references are typically biased with a resistor, the voltage reference can operate on a wide range of input voltages.
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Signal Interface
Our signal interface products provide signal conversion and electrical isolation between sensors and other field devices and a control circuit. Intrinsic safety modules add Zener diodes, which limit the amount of electrical energy on intrinsically safe circuits.
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Capacitor Leakage Current/IR Meter
Chroma 11200
Chroma Systems Solutions, Inc.
The 11200 Capacitor Leakage Current / IR Meter is mainly used for electrolytic capacitor leakage current testing and aluminum-foil withstand voltage testing (EIAJ RC-2364A). The 11200 can also be used for active voltage checking or leakage current testing of absorber, Zener diode, and Neon lamp etc. With the standard RS232 interface, optional GPIB & Handler interfaces, high speed and stable measurement capabilities, the Chroma 11200 can be used for both component evaluation on the production line and for fundamental leakage current or IR testing for bench top applications.
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Diode Tester
FEC VF40CM
Frothingham Electronics Corporation
The VF40CM is intended for testing VF, HALF CYCLE SURGE, and THERMAL RESPONSE/RESISTANCE on small- and medium-power diodes and rectifiers. It can also measure THERMAL RESPONSE/RESISTANCE on NPN and PNP bipolar transistors using an external user-supplied VCB supply.The VF40CM also is sometimes used to measure VZ of low-voltage zener diodes up to the compliance voltage limit of the tester. 20V at 20A is possible.
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Rebuilt Testers
Lorlin® manufacturers New and Rebuilt Discrete Component Semiconductor Test Systems for Transistors, Diodes, Zeners, Fets, IGBTs, SCRs, Triacs, Optos, Small Signal and Power Semiconductors. We measure, screen, test, analyze, characterize and sort the critical parameters of semiconductors devices including Leakage Current, Breakdown Voltage, Gain, Saturation Voltages, and offer a comprehensive test parameter library with an easy to use Windows based applications software. The systems us a Windows 10® 64-BIT Operating System with a USB 2.0 Interface. Engineering excellence, innovation, creativity and cutting edge technology has made Lorlin equipment well known for testing discrete components.
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Capacitor Leakage Current/IR Meter
TH2689A
Changzhou Tonghui Electronic Co., Ltd.
TH 2689/TH2689A provides max. test voltage: 800v/500v, charge current: 0.5mA─500.0mA( if >100V, the max. power 50W can limit). It is mainly applied in capacitance leakage current, insulation resistance and aluminum electrolysis capacitance anode foil pressure test. Also it can be applied in the confirmation of annihilator, zener diode, neonbulb .etc and leakage current test. Standard Handler interface, stable and rapid test, to reach the sorting effect
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Shunt Regulators
These are the standard reference voltage source widely used by the feedback circuits of switching power supplies. Compared to the Zener diode, which is a discrete product, a shunt regulator has much better voltage precision because voltage control is carried out as an IC.
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Diode Lasers
6-Watt Blue Engraving Laser
Advanced Photonic Sciences LLC
Can be used in laser engraving, marking, and cutting applications. Process wood, plastics, metals, anodized aluminum, stone, tile, and other materials. The adjustable spot can be adapted to the needed distance from laser to the material. The spot, with a size of <100 μm, creates very fine engravings and sharp cutting edges. The built-in driver accepts TTL and analog signals for power adjustments. The laser can be controlled between 0% and 100% of output power. It comes preset and needs only a power supply and a signal source.
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Silicon Diodes
DT-670 Series
DT-670 Series silicon diodes offer better accuracy over a wider temperature range than any previously marketed silicon diodes. Conforming to the Curve DT-670 standard voltage versus temperature response curve, sensors within the DT-670 series are interchangeable and, for many applications, do not require individual calibration. DT-670 sensors in the SD package are available in four tolerance bands—three for general cryogenic use across the 1.4 K to 500 K temperature range and one that offers superior accuracy for applications from 30 K to room temperature. DT-670 sensors also come in a seventh tolerance band, B and E, which are available only as bare die. For applications requiring greater accuracy, DT-670-SD diodes are available with calibration across the full 1.4 K to 500 K temperature range.
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PIN Diodes
PIN photodiodes convert light to current – without a bias voltage having to be applied. Silicon is commonly used as an inexpensive detector material in the Vis range. For higher demands, InGaAs is used; it covers the widest spectral range from the Vis to the NIR. We offer silicon carbide as a “solar-blind” detector specifically for the UV range.
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Varactor Tuning Diodes
Macom Technology Solutions Holdings Inc.
MACOM’s GaAs and Silicon varactor tuning diodes provide broadband performance ranging from 10 MHz to 70 GHz. They are ideal for high Q filter and VCO electronic tuning circuits and are available in die form, flip chip, plastic and ceramic packaging. These GaAs diodes boast a constant gamma series for higher frequency and high Q applications and silicon abrupt and hyper abrupt series in plastic packaging are suitable for high volume surface mount applications.
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Laser Diode Drivers
Arroyo Instruments offers a broad range of laser drivers to meet your exact test needs. From 100 milliamps to 100 Amps, all of Arroyo Instruments' LaserSource benchtop laser drivers include unique features not found on competing products such as optically isolated photodiode and modulation inputs, programmable PD bias, and both RS232 and USB computer interfaces. The LaserSource also has laser diode protection circuits such as interlock, ESD protection, and hardware limits for current and voltage.
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Laser Diode
Is a Polarization Maintaining CWDM Coaxial DFB-LD for CWDM analog communication, CATV return-path, laboratory instrument, and R&D applications. This cost-effective, high reliability DFB laser chip has a selectable wavelength with range between 1270 nm to 1610 nm. The versatile DFB-CWDM also features a built-in InGaAsP monitor photodiode, built-in optical isolator and 4-pin coaxial- pigtailed package, single mode coupling, and an FC/APC connector. Contact Optilab for more information.
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PIN Diodes
The SemiGen SGP7000 series of PIN Diodes are processed with a high-resistivity epi that have intrinsic layers that range in thickness from 4 micron to 200 micron depending on performance specifications. These devices are typically manufactured with either a robust thermal-oxide passivation or ceramic glass for durable high-power applications. These diodes are made with a grown junction P++ layer that yields abrupt junction structures that provide low punch through voltages and minimize autodoping. They are available as chips or in your choice of packages.
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Silicon Carbide Diodes
In addition to ensuring compliance with today's most stringent energy efficiency regulations (Energy Star, 80Plus, and European Efficiency), ST's silicon-carbide diodes show four times better dynamic characteristics with 15% less forward voltage (VF) than standard silicon diodes. Silicon-carbide diodes belong to our STPOWER family.
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PIN Limiter Diodes
Macom Technology Solutions Holdings Inc.
MACOM’s PIN limiter diodes provide excellent broadband performance from 1 MHz to 20 GHz and higher for receiver protector circuits. Our PIN limiter diodes are available in die form, plastic and ceramic packaging. Our ceramic packaged diode series is ideal for waveguide, coaxial, and surface mount applications, while our die diode series is well suited for chip and wire high frequency microwave applications.
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Laser Diode
A laser diode, also known as an injection laser or diode laser, is a semiconductor device that produces coherent radiation (in which the waves are all at the same frequency and phase) in the visible or infrared (IR) spectrum when current passes through it.
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Schottky Barrier Diodes
ST's small-signal and power Schottky diode range features diodes from 15 V up to 200 V (with the STPS60SM200C) made of robust avalanche capable technologies. Schottky barrier diodess belong to our STPOWER family.
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High Voltage Diode Assemblies
High voltage diode assemblies are built by adding diodes in series to yield a higher peak inverse voltage. For example, if each diode is rated for 1200 peak inverse voltage (PIV), then six diodes in series would have a total peak inverse voltage of 7200 PIV. The detailed circuit is shown below.
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Vegas Data Diode
01-09838
Non-ruggedized module that addresses concerns regarding use of untrusted, commercial-off-the-shelf (COTS) bus logging on aircraft with a MIL-STD-1553 or ARINC-429 bus interface.
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THz Diodes
Macom Technology Solutions Holdings Inc.
The intrinsic cutoff frequencies of these Schottky junction devices exceed 1 THz, making them well-suited for use in mixers and detectors operating in the frequency bands from 60 GHz into the hundreds of GHz bands.
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Bypass Diode Tester
BDT
Our bypass diode thermal tester is designed to assess the adequacy of the thermal design and long-term reliability of PV modules bypass diodes, which are used to limit the detrimental effects of module hot spot susceptibility.
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Laser Diode Characterization System
58620
The Chroma 58620 Laser Diode Characterization Station is a state-of-the-art full turnkey system specially designed for laser diode testing. Features range from macro inspection of the facet or aperture active area to a full suite of electro-optical parametic tests.
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Laser Diode Characterization Testing
The Yelo Laser Diode Characterization system performs automated characterization of a laser device. The system will allow the operator to load a single packaged Laser device into a TEC controlled fixture mount. Each test station (LIV, Spectrum, Far Field/Beam Divergence) will then automatically align with the Laser Device in a sequential order and perform the automated tests required of each station.
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Step Recovery Diodes
Macom Technology Solutions Holdings Inc.
MACOM’s Silicon and GaAs varactor multiplier diodes provide broadband performance ranging from 10 MHz to 70 GHz. They are ideal for multiplier circuits and are available in die form, plastic and ceramic packaging. These diodes boast a flip chip series for higher frequency millimeter wave applications; plastic packaged series for microwave frequency surface mount applications; ceramic packaged series for high power waveguide and coaxial applications.
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Broadband Planar Tunnel Diode Detectors
KRYTAR Broadband Planar Tunnel Diode Detectors are specifically designed for use in today's high-performance microwave instrumentation and systems. KRYTAR detectors are designed for such applications as power measurements, analyzing radar performance, leveling pulsed signal sources, AM noise measurements, system monitoring and pulsed RF measurements in ultra-broadband and mm-Wave applications.
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Gunn Diodes
The Gunn diode is the best known and most readily available device in the family of transferred electron devices (TED). They are employed as DC to microwave converters using the negative resistance characteristics of bulk Gallium Arsenide (GaAs) and only require a standard, low impedance, constant voltage power supply, thereby eliminating complex circuitry. Teledyne Lincoln Microwave’s DC1200 series of GaAs Gunn diodes is designed for operation at fixed frequency (determined by the oscillator cavity) within a specified band under CW or pulsed conditions.
