ASAP Parts Unlimited Blog

fast-recovery super-junction mosfets

The metal-oxide-semiconductor-field-effect transistor (MOSFET) is a field-effect transistor which is often created by the controlled oxidation of silicon. A MOSFET is a semiconductor device which is most commonly used in power electronics. A semiconductor is composed of a material that doesn’t act as an insulator or a conductor and both of these properties can be controlled. A transistor is a bipolar device that is created by combining a positive and a negative material. It has three terminals: the collector, the emitter, and the base. MOSFETs are bipolar, but metal oxide insulators are added to enhance performance. The terminals in a MOSFET are called the source, the drain, and the gate. “Field effect” describes the method that is used to control the current flowing through the device. In a MOSFET, as the temperature increases, its ability to conduct current decreases. It creates a natural balance because if one device begins to create more current, it will heat up and cause the current to decrease and both devices will level out.

Gate drivers are provided between microcontroller output signals and the power transistors to prevent overheating. There are half-bridge, full-bridge, and three-phase drivers available. Body diodes may be used in configurations such as half-bridges. They can handle large currents, reduce part count, and device cost.

Fast-recovery super-junction MOSFETs are used in high-voltage switching converters because they offer more efficient switching at any given frequency. Gate capacities and die size are reduced, they can be driven with low-current gate drivers, and their output capacity offer lower stored energy and output losses. They are intended for equipment such as solar inverters telecom or data-center power converters and charging stations for electric vehicles.

Technology is on the rise everywhere, in every industry, enhancing every aspect of life. So, it might come to no surprise that huge technological advancements are expected to arrive at airports and airlines within the next year, aiming to make the entire flying process, from check-in and boarding to baggage claim and in-flight purchases easier and more convenient. Some of these advancements include biometrics, blockchain technology, artificial intelligence, robotics, electronic baggage, translation applications, and augmented reality.

Biometrics in air transport has been in traction for quite some time. The technology could essentially change the process of air travel with a single fingerprint or face scan. With the advancement of this technology, an individual’s face could essentially become their passport, making travel significantly easier. Some airlines across the globe are already using this technology to quicken the boarding process. This type of technology could even simplify in-flight purchases, with a debit or credit card at the touch of your fingerprint (literally!).

Artificial intelligence is currently being used on some airline apps to answer questions customers may have about ticket prices, flight times, flight delays, and much more. Apps with integrated artificial intelligence can provide simple and straightforward answers to a set of various different questions. Robotics are also slowly making their way into the world of air travel. Airport robots are predicted to be able to do a number of tasks ranging from baggage transport to identifying security risks.

Augmented reality is a feature that many airports are looking into. Apps would allow for real-time, on-screen airport maps that will direct your every step to your inputted destination. Augmented reality is done through the camera of a smartphone or a tablet. As technology expands, there are many exciting things to look forward to.

the-importance-of-rotables-and-consumables-for-aircraft

In aerospace and aviation safety, safety is the singular most important thing. In order to ensure safety as much as possible, every step of the aircraft’s life is strictly regulated. In order to do this, the aviation industry enforces traces.

Traceability is paramount when purchasing rotables and consumables for aircraft. Trace provides complete accountability from raw materials to end application. It improves manufacture quality and enables the ability to track down any mistakes and find out when and where it was made. Manufacturers, distributors, resellers, and end users can all be accounted for in trace. For example, 145 Trace simply means the rotable part was under ownership of a repair facility.

Rotable parts are components that can be removed, serviced, repaired, and overhauled throughout their lifespan. Rotable parts are also known as serialized components. The serialization of the part allows transparency for the part’s history, such as maintenance schedules and overhauls. Examples include parts such as avionics, pumps, and sensors. Consumables are typically parts that have a single use. Most bolts, screws, and rivets are recognized as consumables. Consumables maintain trace as well, through lot and batch numbers. Consumables must meet a fit, form, and function test, or be replaced if the part does not meet specifications. These parts usually have trace to the production lot for each package and/or set.

New technologies such as Radio-Frequency Identification (RFID) allows for instantaneous access to a component’s history. Not only is RFID convenient, it also provides accuracy. The use of RFID eliminates the task of manually entering a serial number, this reducing the likelihood of any mistakes being made, or time wasted. RFID is primarily focused on rotable parts due to the maintenance requirements the part will require throughout the life of service.

Earlier in July, Cornell Dubilier Electronics released their newest film capacitors for uninterrupted power supplies (UPS), AC power supplies, and general AC filtering applications, the 951C Round Axial Leaded and the 935B Radial Leaded Box Metalized Polypropylene Film Capacitors. The 951C has a cylindrical body with axial 18 AWG tin plated wire leads, and the 953B has a rugged radial box form with four 16 AWG wire leads. Sizes for both vary depending on value. Both capacitors show strong performance in filtering in applications where high-ripple currents are encountered and benign end-of-life failure mode is crucial.

These new capacitors have fused, segmented metallization patterns that provide significant circuit protection. The metallization pattern is deposited onto a high-grade, low-loss polypropylene dielectric. Because the capacitors are segmented, with the help of built-in fuse-links, capacitance loss is limited to a small segment in the capacitor, as opposed to the larger areas of capacitance loss in non-segmented capacitors. They are also UL 810 approved, assuring fail-safe operation under fault conditions.

The 951C series comes in values ranging from 0.825 μF to 40 μF while the 953B series ranges 2.5 µF to 50 µF. Both series have voltage ratings of 160, 250, and 275 VAC, offer -40 to +85? performance, and meet UL 94V-0 requirements for flammability. At 10,000-hour service-life expectancies without derating, the 951C and 953B series capacitors will succeed in providing reliable filtering and smoothing for all demanding applications in UPS systems, AC power supplies, and more. According to Cornell Dubilier Electronics, other highlights for the 951C and 953B series capacitors are fuse protection, low dissipation factors, and self-healing. They can also handle constant exposure to high-amplitude power line noise and large voltage spikes.

solenoid-control-systems-in-electro-mechanical-industry-

Solenoid Control Systems is for endurance and cycling testing for electro-mechanical components to include Industrial motors, actuators, electromagnets, and relays. These tests are vital to the testing process to make sure components are working properly. The announcement of Optimal Engineering’s seven new Solenoid Control Modules aims to make Solenoid Modules to fit many different applications. Standard features of the modules are they are microcomputer focused, high output, and include a flyback diode in each unit. The ability to use these Solenoids in focused roles make for extreme value to the user.
These will provide exactly what you need are while using Optimal Engineering’s seven new solenoid products. Some of the usual applications are life cycling, endurance testing, and vibration and shock testing, and vibration cancellation. These applications are needed so that you know your equipment is running at 100%. Some of the features are that its compact, functions independently, its ready to go out of the box just install it in to where it needs to be, it utilizes controllers and drivers, can run multiple devices simultaneously, easy and timeless install, programming is easy, and it even has different modes during operation, host-controlled and stand alone, it does not need a computer or device to function. These extremely valuable applications and functions especially with the fact the Solenoids are completely independent and not reliant on each other so that you can save money not purchasing extra power sources.
With this new extraordinary announcement, make sure you come to APAP Parts Unlimited when you purchase your new solenoid control system from Optimal Engineering. ASAP is the leader in solenoid sales and with our website www.asappartsunlimited.com, it’s the easiest and most convenient way to purchase Solenoid controls and other products. The streamlined design of the website makes the process as easy as possible and our sales team will make sure to get you the best price you can get. Being the premier supplier of electronic and aviation parts, we are ready to help you with whatever you need to purchase, and our knowledgeable staff will be excited to help.

cambridge-electronic-industries-launches-bnc-connectors

Cambridge Electronic Industries, a well-known connector manufacturer specializing in coaxial connectors and cable assemblies in the broadcast and machine vision markets, recently launched a line of high-speed Micro BNC connectors. These connectors will be used for small cameras and instruments. The following higher resolution formats will also be implemented when higher density is required: 12G-SDI, 4K, High Dynamic Range, and Ultra High Definition.

The connectors are a third of the size standard BNC connectors. These connectors have been produced for the next generation of compact and lightweight broadcast cameras. Being sold under Coax vision’s brand name, this new line includes connectors with several different configurations. These can be connected to a cable or PCB mounted. Diagonal dual port connectors are available, increasing the packing density while still meeting the requirements for standard PCI card applications. The stacked dual port connector erases the need of PCB mezzanine configurations along with an interface that is changeable. This will then provide an alternative interface in one single board design.

Different mounting options are available for the new range of connectors such as right angle, top entry, edge mounting, and bulkhead with different leg and body lengths. This new line of Micro BNC connectors is also compatible with the HD BNC and Ultra Tiny BNC. The connectors mounted by cable are well suited with several different cables such as the Belden 1694A, 4694R, 4505R, and more.

French Native energy management company, Schneider Electric, has released a new Circuit breaker configured for premium customization. The Compact NSXm Circuit breaker is designed for optimal performance in every aspect that the circuit breaker takes part of. Much of these items consist of components such as the panel boards, entire machinery, control panels, as well as low-voltage switchboards.

The circuit breakers have been integrated with a 3-pole or 4-pole configurations. While the design its self-has many innovative options, the exterior has improved its installation options. Newly designed with field- installable options that make it easy to install. As well as a very flexible structure with a built-in DIN rail and plate mount capability. The installment aspect of the circuit board is made for the unit to be user-friendly but also structured to have multiple pre-wired auxiliaries.

Working alongside Schneider Electric is Ever link technology that will be providing essential components to a newly founded circuit breaker. Its key effects will allow for the maximum long-lasting connection despite “loosening” effects that are brought out from heat cycling and vibrations. With Ever links outstanding patented technology it also offers the ability to lowers the installment time and removes the need for compression lungs. Its versatility creates the opportunity to be able interconnected with cables of different configurations including flexible cables.

On the market, the circuit breaker can be found in different variations such as 16A to 160A.Since many different components have different voltages of breaking capacity Schneider Electric has been created a variety of different breakers with the maximum capacity of 16, 25, 36, 50, and 70kA at 415 volts. New circuit breakers released by Schneider Electric

polychlorinated-biphenyl-how-product-your-products

If you have spent a lot of money on a piece of equipment you want to make sure you are protecting it, in the right way. There are two options for protecting a Polychlorinated Biphenyl, referred to as Printed Circuit Board (PCB) from here on out, resins and coating. Each has advantages and disadvantages when it comes to protecting what’s important to you.

When looking at your pre-existing rig, see how concealed the PCB is inside of its housing. If the PCB is snug as a bug in a rug inside of its little home than you can get away with a simple spray of coating which will just be a back up in case the main housing unit doesn’t do its job to the best of its abilities.

If your housing is not the main source of protection for your PCB than a thicker, more durable resin should be applied to act as a superior protective layer.
When looking over the difference between coating and resin you should take into consideration their consistencies.

Coating, often thin and clear in color, can not be applied as thickly as resin can. The coating also tends to have a shorter drying time and a longer shelf life. Resin, on the other hand, can be applied in thick globs, which will weight the product down but provide an increased barrier against abrasion and dirt. Resin also cannot be applied via spray which makes the application process a bit longer and slightly more tedious.

Belgians very own automotive chip company, Melexis, has released its latest innovative single-chip solution to the industry. Single chips known as the US1168KLD and the US169KLD have been made for extreme quality performance for brushless DC fans and motors. Precisely composed to be able to support smaller solution items all while being a very dependable component. The fan motors have been qualified and produced in accordance with the AEC-Q100 regulations.

The structure of the fan has been programmed with a gentle switching application creating a less nosey component. The reduced EMI and acoustic noise, has made the US1168KLD and the US169KLD chips become a commodity on the market because of it. Prime examples of products that would benefit from a quitter unit would be items such as audio, cooling fans for wireless chargers, computing, cooling fans, multimedia and sensor fans; items that could be manufactured as in-cabin automotive applications. Despite the single chips size its potential competes with larger units of its type.

“Configured as a full-bridge driver with the ability to drive motor currents up to 300mA and a supply range from 1.8V to 5V, the devices include an integrated Hall effect sensor.”

Along with many other innovative pieces, the US168 includes a tachometer (FG) , alarm output system (RD) and output signals. The intricate design creates a well-rounded structure built for intense jobs. Composed of thermal protection, locked rotors, and made with a “built-in reverse voltage system. With its very compacted design, it is allowed to be placed in “ultra-thin fans” that size only 3mm² of PCB area. Held together by a UTDFN6 box that is compatible to be able to fit both units. Melexis has created themselves a unit that is very beneficial to the user to be able to support smaller and efficient items.

ASAP parts unlimited is a prime source for supplying Best Automotive-grade fan driver IC, Driving single-coil, Brushless DC fans and motors, Melexis Electronic products. Having tested and placed under warranty for every part with every order, ASAP can supply your needs. Specializing in obsolete and hard to find parts, our dedicated staff will exhaust every avenue for the part requested. For a further look at the products unlimited is able to provide visit www.asappartsunlimited.com.

Italian aircraft accident investigation authority ANSV has determined that for a takeoff from Verona, Italy, on September 1, 2009, 87 passengers flying onwards to Rome were not redistributed. 58 of these passengers had been in the rear cabin and another 25 in the center cabin, with just 4 in the front. The passengers were supposed to be redistributed with 29 seated in each cabin. Originally, the tail-strike accident was attributed to an imbalance due to luggage distribution, but upon further investigation, probable cause has been identified to be due to uneven passenger load.

Although the ramp agent told ANSV that he had submitted a load and trim sheet to the captain, the reorganization was not carried out, possibly due to a misunderstanding. The captain, however, still approved and signed the load sheet. ASV's full inquiry states that the pilots used the flex thrust setting for departure but, against normal procedures, did not apply forward side-stick pressure as the aircraft began to roll.

7 seconds into the take-off roll, the captain momentarily reduced thrust before abruptly raising it to the maximum. As the aircraft reached 60kt, it struck its tail on the runway, and further fluctuations, with lower intensity, showed the jet suffered repeated strikes, according to the inquiry.

The crew had decided to continue the flight—contrary to operating procedures which require an immediate return to the airport in case of tail-strike—and tried to proceed to Rome. However, the subsequent cabin pressurization warning prompted the crew to return to Verona. The pilots must have realized that the impact occurred during take-off, but the precise decision-making situation could not be clarified because the cockpit-voice recorder data for the initial part of the flight was unavailable. No one was seriously injured in the flight, but four of those in the rearmost row were treated for whiplash.