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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Product
Atlas ZEN Zener Diode Analyser
ZEN50
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The Atlas ZEN is ideal for testing Zener diodes (including avalanche diodes), transient suppressors, LEDs and LED strings.
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Product
Signal Interface
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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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Product
Shunt Voltage References
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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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Product
Diode Tester
FEC VF40CM
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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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Product
Capacitor Leakage Current/IR Meter
Chroma 11200
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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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Product
Rebuilt Testers
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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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Product
Shunt Regulators
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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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PIN Diodes
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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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Product
Diode Arrays
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a silicon diode with minimal packaging overhead. The small signal 0603, 1005 and 1206 Chip Diodes are lead free with Cu/Ni/Au plated terminations while the other packages (SMA, SMB, SMC, 1408, 1607, 2010, 2419, 8L NSOIC, 16L NSOIC, SOT23, SOT23-6, 16L WSOIC) use 100 % Tin terminations. All Bourns® diodes are compatible with lead free manufacturing processes, conforming to many industry and government regulations on lead free components.
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Rectifier Diodes
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Chip Diodes from Bourns has emerged that offers the capability to provide a silicon diode with minimal packaging overhead. The small signal 0603, 1005 and 1206 Chip Diodes are lead free with Cu/Ni/Au plated terminations while the other packages (SMA, SMB, SMC, 1408, 1607, 2010, 2419, 8L NSOIC, 16L NSOIC, SOT23, SOT23-6, 16L WSOIC) use 100% Tin terminations. All Bourns® diodes are compatible with lead free manufacturing processes, conforming to many industry and government regulations on lead free components.
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Product
Vegas Data Diode
01-09838
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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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Product
SCR, Diodes & Assemblies
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SCR and Diodes are available as assemblies or discrete parts. Most assemblies are encapsulated. CEHCO stocks a variety of rectification products such as Diodes, SCR’s (silicon-controlled rectifiers), and Encapsulated Assemblies. We SCR and diodes replacement specialist. We specialize in obsolete and hard-to-find SCR and diode assemblies. We can offer an equivalent replacement for most obsolete rectification devices.
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Product
Gunn Diodes
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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.
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Product
Diode Scanner
SC924
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Frothingham Electronics Corporation
The SC924 is an electromechanical device for testing diodes loaded on burn-in boards.A set of Kelvin contacts is indexed from diode to diode. The contacts move over a range of 24 inches in the X direction and the table holding the boards moves over a range of 9 inches. This allows scanning of multiple burn-in boards or boards with multiple rows of diodes.
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Laser Diodes
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Our laser diode portfolio is broad, extending from cw laser diodes to pulsed laser diodes to high-power laser diodes. For special areas of application VCSELs and quantum cascade lasers are also included in our range of products.
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Product
Laser Diode Characterization Systems
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Artifex Engineering GmbH & Co. KG
The LIV100 and LIV120 employ digitally programmable analogue end stages for flexible and accurate current control. A wide range of current end stages are available with maximum currents of 250mA for low power and telecom lasers or up to 1200A for high power laser bars. Custom units are available with even more current!
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Product
Diode Power Sensor
8481D
Power Sensor
The 8481D diode power sensor measures average power over the frequency range 10 MHz to 18 GHz and power range -70 to -20 dBm (50 dB dynamic range).
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Product
THz Diodes
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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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High-power Laser Diode Assembly
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The laser diode is one of the most common devices used throughout photonics. The micro-assembly process calls for the placement and bonding (align-&-attach) of single emitters, or multiple laser diodes (stacked or complete bars), the placement, active alignment and bonding of necessary micro-optical elements, subsequent device testing, and ultimately packaging and quality control. ficonTEC’s machine systems are capable of all the steps necessary for assembling laser diodes, even high-power devices. Multiple in-line systems can be configured to address entire process segments.
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Product
Diode Tester
FEC200E
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Frothingham Electronics Corporation
The FEC200E is an automatic computer- controlled diode and rectifier tester. It is controlled by a standard PC-compatible computer running FreeDOS.
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Diode Lasers
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The large spectral coverage of our diode lasers combined with the compact form factor, direct modulation capability (up to 150 MHz), true off during modulation (>70 dB aspect ratio), and integrated spectral clean-up filters make them ideal for applications in high resolution bioimaging, flow cytometry, optogenetics and quantum technologies.
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SiC Diodes
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ST’s silicon carbide diodes range from 600 to 1200 V – as single and dual diodes – and feature unbeatable reverse recovery characteristics and improved VF. Available in a wide variety of packages, from D²PAK to TO-247 and the insulated TO-220AB/AC, they offer great flexibility to designers looking for efficiency, robustness and fast time-to-market. ST’s SiC Schottky diodes show a significant power-loss reduction and are commonly used in hard-switching applications such as high-end-server and telecom power supplies, while also intended for solar inverters, motor drives and uninterruptible power supplies (UPS). ST’s automotive-grade 650 and 1200 V SiC diodes – AEC-Q101-qualified and PPAP capable – feature the lowest forward voltage drop (VF) on the market, for optimal efficiency in electric vehicle (EV) applications.
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Laser Diode Characterization System
58620
System
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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Bridge Rectifier Diodes
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ST’s portfolio of bridge rectifier diodes is intended for primary bridges. In input primary bridge applications, ST's 1200V bridge diodes achieve very low conduction losses thanks to very low forward voltage characteristics. They can operate at up to +175 °C junction temperature, as a result of reduced leakage currents. Bridge rectifier diodes are belonging to the STPOWER family.
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Diode Lasers
Laser Diode Micro-Modules
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Advanced Photonic Sciences LLC
Advanced Photonic Sciences (APS) has introduced a new product line of Laser Diode Micro-Modules (LDMM’s) that address the need for a simple, robust, reliable, and cost-effective platform on which to mount, provide heatsinking for, collimate, and power semiconductor laser diodes. The use of laser diodes in scores of applications has become ubiquitous, and our new products make mounting, collimating, heatsinking, and providing power leads for such applications easier than ever.
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Product
Diode Lasers
Spot Creator
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Advanced Photonic Sciences LLC
Spot Creator is an innovative accessory developed for enhancing the performance of blue laser diode based engraving and cutting machines. Spot Creator solves a major problem with using asymmetric blue laser diodes: the production of engraving features that are different in the X-Y directions, resulting in unequal or blurred lines. Using Spot Creator, line widths are equal in the X-Y directions, with a minimum spot of 50 μm. The intensity on the engraved part is thus maximized.
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Product
Silicon Diodes
DT-670 Series
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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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Product
PRO8 Modular Laser Diode Platform
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Thorlabs offers the PRO8 modular test and measurement platform in 2-slot and 8-slot configurations. These customizable bench top chassis let users build a compact fiber or laser diode testing platforms for their lab or factory floor. Modules include lasers, TEC controllers, optical switches, and current controllers.
