Vn0300 pdf

Product Features. Free from secondary breakdown Low power drive requirement Ease of paralleling Low CISS and fast switching speeds Excellent thermal stability Integral source-drain diode High input impedance and high gain. Parametrics Click on a property to perform a parametric search for other products with that property.

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The CUB3R is a general-purpose counting module similar to many others. It has its own internal batteries that last for years. Feel free to choose another type that will operate with a couple of mA in the LED. The MAX is a micro-power op-amp that draws only 34 uA and has some impressive specifications. Unfortunately, that model is no longer available but many, many other types are.

The choice isn't critical but the lower the current consumption, the longer the battery will last. The battery in the prototype is a 6 volt lithium type but others will work fine. A 9 volt rectangular should work but watch out for micropower op-amps that have low maximum power supply voltage ratings. Four penlight cells would be a good choice.

Two sets of penlight cells with separate op-amps will make experiments with excessive gain more likely to succeed. Other experiments:. Connecting an external speaker amplifier to the output of the first op-amp pin 1 through a 4. If the amplifier has sufficient gain, a low-level hiss should be heard with no signal present. A cell phone anywhere near the thing will give quite a loud buzz when it starts transmitting.

Active wireless devices will also produce a racket. It's interesting to listen to a typical Wi-Fi device, the amount of communication required to receive a web page is surprisingly little - just a little 'bzzt' for a typical static page. Many types of cell phones can be heard for quite a distance and the signal comes and goes dramatically as the user moves around. Other antennas could be connected to count or detect other RF signals. For example a tuned circuit and whip antenna could look for nearby AM modulated signals like aircraft communications see Passive Aircraft Receiver for a front-end design , CB radio, lightning crackles, and any number of digital transmitters.

A 'proper' antenna for a particular band should give excellent performance. If power isn't a problem, increase the diode current by lowering the two diode resistors from 2. The bias current will be about 15 uA. The RF detector could be replaced with other sensors like a seismic pickup made from a speaker, a microphone, a photocell or phototransistor, or other transducer that produces occasional weak audio signal bursts that could be counted.

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In normal conditions, Express delivery needs days, Registered Mail needs days. All goods will implement Pre-Shipment Inspection PSI , selected at random from all batches of your order to do a systematic inspection before arranging the shipment.

If there is something wrong with the VNLS we delivered, we will accept the replacement or return of the VNLS only when all of the below conditions are fulfilled: 1 Such as a deficiency in quantity, delivery of wrong items, and apparent external defects breakage and rust, etc. Need any After-Sales service, please feel free contact us: sales jotrin. Account Center. Live Chat. Product comparison Supporting the comparison of similar products. Compare Clear. Once your order has been processed for shipment, our sales will send you an e-mail advising you of the shipping status and tracking number.

Note: It may take up to 24 hours before carriers will display tracking information. In normal conditions, Express delivery needs days, Registered Mail needs days. Q: What is the process for returns or replacement of VNN2? All goods will implement Pre-Shipment Inspection PSI , selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the VNN2 we delivered, we will accept the replacement or return of the VNN2 only when all of the below conditions are fulfilled: 1 Such as a deficiency in quantity, delivery of wrong items, and apparent external defects breakage and rust, etc.

Need any After-Sales service, please feel free contact us: sales jotrin. Account Center. Live Chat. Product comparison Supporting the comparison of similar products.