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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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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Capacitor Leakage Current/IR Meter
TH2689A
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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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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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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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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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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
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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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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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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Limiter Diodes
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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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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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Diode Temperature Monitor
SIM922
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Stanford Research Systems, Inc.
The SIM922 Diode Temperature Monitor and the SIM923 Platinum RTD Monitor are designed to measure four sensors simultaneously. Based on the modular SIM platform, they provide high-performance and multiple-channel capability in a small footprint.
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PIN Diode Switches
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After producing quality PIN diode switches in-house for many years, K&L Microwave is pleased to offer packaged options for customer applications. The offerings below are intended to highlight standard products; however, with our extensive in-house capabilities, custom parts are also available.
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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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Diode Laser Spectroscopy
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Diode Laser Spectroscopy by Mesa Photonics: Herriott Cell and OEM laser diode controller boards.
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Laser Diode
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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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Diode Power Sensor
8487D
Power Sensor
Excellent SWR for reducing mismatch uncertainty Accurate calibration and traceability to US National Institute of Standards and Technology (NIST) millimeter-wave sensor calibration Compatible with EPM (new N1913A/ 14A, E4418B/ 19B), EPM-P (E4416A/ 17A) and P-series (N1911A/ 12A) power meters, plus the E1416A VXI and discontinued 70100A and 43X power meter Accurate average power measurements over -70 to -20 dBm Frequency range 50 MHz to 50 GHzDiode power sensing element
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Spectral Single-Mode Diode Laser
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The diode lasers are compact, single-mode light sources with a spectral width in the sub-MHz range (cw). A modulation input is optional. The wavelength for standard products is in the range 1530nm-1565nm (other wavelength can be tested).
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Fast Recovery Diodes
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We offer high-performance products with low forward voltage (VF) and high-speed reverse recovery time (trr) for increasing device efficiency.
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Laser Diode Drivers
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Berkeley Nucleonics Corporation
Provides a laser diode with a stable, low-noise current source.
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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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Automotive-grade Diodes
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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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SPDT PIN Diode Switches
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Fairview offers a comprehensive selection of 23 different models of SPDT PIN diode switches that cover frequencies ranging from 10 MHz to 67 GHz. The high isolation levels up to 80 dB ensure that unwanted signals will not leak into the desired signal path. Other critical performance features include low insertion loss as low as 1.1 dB and fast switching speed performance as low as 50 nanoseconds. Both absorptive and reflective designs are available and every model utilizes integrated TTL compatible high speed driver logic circuitry. These SPDT switches are constructed using MIL-Grade rugged coaxial packages and several models support field replaceable connectors. All models are EAR99.
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Industrial Tech Diode Laser
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Our products include the most reliable high-power diode lasers available in the industry today. Our unmatched ability to scale manufacturing to consumer volumes ensures that we meet the technical and logistical needs of all our customers. With extensive technical and manufacturing expertise, we are a leading global source for VCSELs—industry-standard housing dimensions, very high reliability, and excellent performance over extended operational temperatures make them ideal for consumer markets.
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Bypass Diode Tester
BDT
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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 Drivers
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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 Life Test
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Life-tests consist of the highly accelerated ageing, under controlled conditions, of a group of lasers taken as a representative sample. Optical degradation of the laser diodes is observed and recorded by precisely measuring changes in the laser's operating characteristics during the test. Life-tests are used for vendor qualification of the laser diodes during product development and can be conducted throughout the production life of the laser.
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Laser Diode
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Yisinc Optical Technology Co., Ltd
Laser diode is an efficient radiation source for CW and pulsed operations.
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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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LIV – High-power Laser Diode Testing
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An important aspect of the development and manufacture of laser diodes is the so-called laser diode characterization, or laser IV curve. By applying increasing current to the laser diode so it that emits light, the optical output is measured together with the voltage drop across the diode element. The resulting LIV curve reveals important clues about the quality of manufacture and the performance of the laser diode, enabling a pass/fail decision to be met.
