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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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 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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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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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
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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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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SiC Diodes
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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Automotive-grade Diodes
ST's portfolio of automotive diodes is qualified to the AEC-Q101 standard and is intended for DC-DC converters used in numerous automotive functions. Most of these dedicated diodes are guaranteed in operation at junction temperatures as low as -40 °C and as high as +175 °C. The automotive-grade diodes belong to our STPOWER family.
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Diode Lasers
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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Diode Lasers
Laser Diode Micro-Modules
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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.13u ESD diode
Impulse TSMC
The Impulse TSMC .13u ESD diode was made to provide ESD discharge paths when integrating third party IP in an integrated circuit design for total ESD protection. The Impulse ESD diode has been successfully used with Dolphin Technologies, Artisan/ARM, TriCN/Synopsis I/O libraries, as well as popular IP blocks from RAMBUS, Chip Idea and other quality IP vendors. A 5.5 volt reverse bias anode to cathode operational specification enables the Impulse TSMC .13u ESD diode to be the device of choice for 5 volt tolerant designs.
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Diode Tester
FEC200E
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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Limiter Diodes
The SemiGen SLP7100 series of Limiter Diodes are processed with a high-resistivity epi that have thin intrinsic layers. These devices are typically in the 2 to 20 micron range of epi thickness and can be gold doped to achieve specific performance goals. These diodes are used in passive or active limiter designs in the 100 MHz to 30 GHz frequency ranges. They are ideal for use in high-power applications and can be supplied in chip form or in your choice of packages below.
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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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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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Diode Submounts
Ultra-precise patterning of thin film metals on dielectrics with high thermal conductivity are used for diode submount applications. Via the acquisition of Ion Beam Milling, Inc., SemiGen is the industry leader for laser diode submount fabrication. As each application is different, we work with customers to develop a custom design that perfectly fits their requirements. We have experience producing circuits utilizing substrates of varying thicknesses with high thermal conductivity such as alumina (Al), aluminum nitride (AlN), and beryllium oxide (BeO). SemiGen can deliver laser diode submounts with or without Au/Sn pads depending on your needs.
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Laser Diode
Is an electrically pumped semiconductor laser in which the active laser medium is formed by a p-n junction of a semiconductor diode similar to that found in a light-emitting diode.
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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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Laser Diode Drivers
Renesas offers a portfolio of laser diode driver (LDD) ICs for DVD/CD/Blue-ray optical drive and laser projection applications.
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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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Laser Diode Characterization Systems
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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Laser Diode Burn-In Testing
Laser reliability testing consists of a series of tests that laser diodes can be put under in order to ensure their reliability for post-production use. There are different types of tests that can be carried out and there are multiple measurements that can be taken in order to evaluate the reliability of the device. One of these tests is laser diode burn-in.
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Laser Diode Drivers (LDD)
LDD technology has evolved from driving DVD/CD/Blue-ray optical drives to include laser projection in smartphones, automotive head-up displays (HUDs) and pico projectors. Renesas has developed new LDDs for RGB scanning laser projection systems and laser-based pico projectors. Automotive HUDs are benefiting from big innovations in MEMS projection systems and are now central to advanced driver assistance systems (ADAS) and safety. The latest laser scanned-MEMS projection systems can provide higher resolution images and at a lower cost.
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Schottky Mixer And Detector Diodes
Majority carrier diodes formed by plating a layer of metal on a layer of doped semiconductor, which forms a rectifying junction.
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Diode Laser Driver
D200
The D200 is a compact, DC-coupled fast laser driver, providing up to 4 amps of regulated constant current. A built-in edge-triggered pulse generator produces up to 1 microsecond pulse widths and 2 nanosecond transition times, capable of driving lasers with forward voltages up to 9 volts. A pulse-follower mode is also provided, accommodating externally-defined trigger widths up to 100% duty continuous-wave (CW). Power, pulse width, drive current and differential triggering functions are accessible through a ribbon cable header for embedded OEM applications. A low-inductance laser drive interface permits direct laser connection or custom interposer and flex-cable attachment.
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Diode Pumped Actively Q-switched Lasers
NL120 Series
NL120 series electro-optically Q-switched nanosecond Nd:YAG lasers provide up to 10 J per pulse with excellent stability. The innovative, diode‑pumped, self‑seeded master oscillator design results in Single Longitudinal Mode (SLM) output without the use of expensive narrow linewidth seed diodes and cavity‑locking electronics.
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LASER DIODE TESTER
LASER DIODE TESTER LD-607 Basic Functions LIV curve test. LD horizontal and vertical test. LD Spectrum test
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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.
