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
Planar-Doped Barrier Diode Detector, 10 MHz to 33 GHz
8473D
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The Keysight 8473D is a high-performance detector using a gallium arsenide, planar-doped barrier detecting element. It features extremely flat frequency response over its entire band of operation and very good frequency response stability versus temperature. The Keysight 8473D is also very rugged with high resistance to ESD damage. An optimum square-law load and positive polarity output are available as special options (consult your local Keysight representative).
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Product
PIN Diodes
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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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Product
SP2T RF Pin Diode Switches To 18 GHz
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Pulsar Microwave's 2-way switches are available in absorptive and reflective designs from 20 MHz to 18 GHz. They are also referred to as single pole, double throw and abbreviated SPDT or SP2T. These switches have a typical VSWR performance of 1.6:1 or better and input power handling of 200 milliwatts maximum. Switching time is 100 nanoseconds, and isolation of 60 dB or greater for most models. Supply voltages are +5V and -5V, with TTL logic control voltage of 0 to 5 volts.Both absorptive and reflective SPDT switches are packaged into Pulsar Microwave's SW2 outline. Configuration is standard with SMA female connectors. Voltage is applied with wire wrap feed thru terminals. The housing serves as electrical ground, and two turret terminals are installed for wiring.
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Product
Millimeter Wave Zero Bias GaAs Schottky Diode
HSCH-9162
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The HSCH-9162 is suitable for medium-low barrier, zero bias detector applications. The HSCH-9162 is functional through W-band (110 GHz) and can be mounted in microstrip, finline, and coplanar circuits.
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Product
Diode Pumped Actively Q-switched Lasers
NL120 Series
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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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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
Low-Barrier Schottky Diode Detector, 10 MHz to 18 GHz
8473B
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The Keysight 8473B Low-Barrier Schottky Diode (LBSD) detector has been widely used for many years in a variety of applications including leveling and power sensing. It offers good performance and ruggedness. Matched pairs (Option 001) offer very good detector tracking.
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Product
Infrared Laser Diode Modules: 830nm-852nm, Elliptical Beam
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The Optoelectronics Company Ltd
Custom lasing wavelengths, from 405 nm to 852 nm, output power options and laser engraving are available to your specifications. Both standard and custom configurations provide OEMs, end-users and systems integrators with complete cost-effective laser solutions.
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Product
SP6T RF Pin Diode Switches To 12 GHz
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The SP6T series of 6-way absorptive and reflective switches manufactured by Pulsar Microwave cover applications from 300 MHz to 12 GHz. They have an isolation of 60 decibels and most models specify 1.6:1 or better return loss throughout frequency band. These 6-way switches require a +/- 5VDC supply to operate. Switching control uses individual 0-5V TTL control logic. Voltage and logic control interfaces into a system using a 9-pin D-SUB connector installed.
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Product
SP3T RF Pin Diode Switches To 18 GHz
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Pulsar Microwave manufactures 3-way absorptive and reflective switches for use in 50-ohm systems. These SP3T switches operate from 100 MHz to 18 GHz and handle 200 mW input power. VSWR performance is often 1.6:1 or better with 100 ns switching time. Minimum isolation of 60 dB is specified for most units. Absorptive and reflective switches require +5V and -5V power supply to function. Control logic is from 0 to +5 volts. All voltage and ground connections are made by feed thru and turret terminals, respectively.
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Product
USHIO Red Laser Diodes (633nm - 690nm)
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The Optoelectronics Company Ltd
Features: 5.6 mm CAN package, Optical output power: 80 mW (CW), 300 mW (pulsed – pulse width: 10 ns, duty: 10%), Lasing wavelength: 658 nm, Wall-plug efficiency*: 33%, Operating temperature: -10° – +60° C (CW); -10° – +75° C (pulsed), Single transverse mode, TE mode oscillation, MTTF >10,000 hours
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Product
MICROWAVE SILICON LIMITER PIN DIODES
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Insight Product Company offers Microwave Silicon Limiter PIN Diodes with p+-i-n+ structures are designed to be used in microwave protective  devices included in hybrid integrated circuit (HIC) hermetically sealed, design of which provides protection against  moisture, salt, fog, mycelial fungus, hoarfrost, dew, decreased and increased pressure.
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Product
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
Osram Direct Emission Green Laser Diodes (510 - 530nm)
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The Optoelectronics Company Ltd
The PLT3 520D laser diode can deliver 140mW pulses at 520nm with 8% efficiency, driven at 300mA at 50% duty cycle – OSRAM's previous limit was 80mW with the PL 520B. This new diode has been developed to work in MEMS-based scanners.
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Product
Laser Diode Modules: 635nm-660nm Visible Wavlength, Elliptical Beam
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The Optoelectronics Company Ltd
Custom lasing wavelengths, from 405 nm to 852 nm, output power options and laser engraving are available to your specifications. Both standard and custom configurations provide OEMs, end-users and systems integrators with complete cost-effective laser solutions.
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Product
Compact Laser Diode Modules: 635nm-639nm Visible Wavelength, 11mm Diameter
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The Optoelectronics Company Ltd
Custom lasing wavelengths, from 405 nm to 852 nm, output power options and laser engraving are available to your specifications. Both standard and custom configurations provide complete cost-effective laser solutions.
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Product
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 Drivers For Automotive
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Automotive Head-Up Displays (HUDs) are benefiting from big innovations in MEMS projection systems and are central to ADAS and safety. The latest laser scanned-MEMS projection systems can provide higher resolution images and at a lower cost. Renesas' highly integrated laser diode driver enables automotive head-up displays (HUDs) with high resolution, high color-depth and high frame-rate projections.
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Product
SP4T RF Pin Diode Switches To 16 GHz
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The 4-way series of absorptive and reflective switches operate from 100 MHz to 16 GHz. They are rated at 200 mW maximum input power and have a switching time of 100 ns. SP4T switches that operate up to 8 GHz have a maximum VSWR of 1.6:1 and minimum isolation of 60 dB. All absorptive and reflective switches manufactured by Pulsar Microwave require both positive and negative 5-volt supplies. Additionally, the TTL control logic operates from 0 to +5 VDC. Voltage connection is made with feed thru terminals. Ground connection is made through the chassis and turret terminals.
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Product
Diode Lasers
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Offering diode lasers in a wide range of wavelengths, power, and package configurations. Providing optimum solutions for applications in laser pumping, materials processing, medical, defense, and instrumentation.
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Product
SCR Diode Testers
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SCRs and Diodes are used in the power sections of various power systems. A SCR Diode Tester is an important piece of equipment to determine if a SCR or a diode is defective in a power circuit. It is difficult and time-consuming to troubleshoot SCRs and Diodes with a digital meter.
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Product
Planar-Doped Barrier Diode Detector, 0.01 to 50 GHz
8474E
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The Keysight 8474E is a high-performance detector using a gallium arsenide, planar-doped barrier detecting element. It features extremely flat frequency response over its entire band of operation and very good frequency response stability versus temperature. The Keysight 8474E is also very rugged with high resistance to ESD damage. The Keysight 8474E detector is available with a 2.4-mm (0.01 to 50 GHz) connector. This detector offers the options for optimal square-law loads (Option 102) and for positive polarity output (Option 103). Because the unit-to-unit frequency response tracking of this device is typically better than plus or minus 0.3 dB, no matched response option is offered.
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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.
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Product
Planar-Doped Barrier Diode Detector, 100 kHz to 2 GHz
8471D
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The Keysight 8471D is a low-cost, planar-doped barrier detector offering excellent performance to 2 GHz. A negative polarity output is standard, and a positive polarity is available as Option 103. A load option (Option 102) extends the square-law region to at least -10 dBm. The Keysight 8471D has a BNC (m) input connector and a frequency range of 100 kHz to 2 GHz, making it ideal for use in RF and low microwave applications.
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Product
2.5G DFB Laser Diode Chips
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Guilin GLsun Science and Tech Group Co., LTD
2.5G DFB Laser Diode Chips by GLSN
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Product
Low-Barrier Schottky Diode Detector, 10 MHz to 26.5 GHz
33330C
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The Keysight 33330C low-barrier schottky diode detector has been widely used for many years in a variety of applications including leveling and power sensing. It offers good performance and ruggedness. Matched pairs (Option 001) offer very good detector tracking.
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Product
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
Laser Diode
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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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