Huaqiang Electronic network road Heshun big data chip factory official website Hello, you can Baidu more than three platforms can query the domestic chip factory and chip information.
As long as the parameters are on, you can basically replace some tools or URL queries, many websites can achieve parameter search, such as: core network can query alternative models.
Chip substitute material means new material to replace. Chip material distributionid=' Chip screen is CA8T device is what, package sot23-6'> Chip screen is CA8T device is what, package sot23-6
1, in the patch transistor, the main difference between the SOT-23 package and the SOT-323 package is that the size is different. The SOT-323 component is significantly smaller than the SOT-23. In addition, the foot spacing of the components is also different, and the SOT-323 is narrower than the SOT-23.
2, this is a triode, used to control the load current output. 6 from the outsideFeet, but with more than one set of transistors integrated inside. Really to determine what it is, you can open the 100m oscilloscope, the pen to measure the input foot, if the input is pure voltage, there is no doubt that it is a transistor, if there is a waveform, it is not a transistor.
3, the sot23-3 package device model in line with this screen printing is AS431BNTR-G1. Screen printing GB6. Device function: three-terminal adjustable precision turn-off rectifier, just like the ordinary TL431. The internal reference accuracy of this model 5V is 1%.
4, Hello! Your query for this chip shouldThis is: MCH6534, valid code is "EG".
5, you said that 12 and 56 feet are connected together for the leakage (D) end, 4 feet are grounded, should be the source end (S), 3 feet are connected to the G pole.
6, this is DIODES company's adjustable precision turn-off rectifier, in fact, it is the same function as TL431 device, model AZ431AN-ATRG1, where AZ431 is the model, A represents the error of 0.4%, N represents SOT23 package, the last A represents the cathode voltage 40V, the package is braid-loaded, G1 stands for green product.
1, through the screen to query the model, you can query in the screen reverse search network, because a screen corresponds to multiple models, so you need to package according to the category of components for further confirmation.
2, open the original website of the chip, find the subpage of the query, and enter the code query. So we can find the specific model of the chip through the code on the chip.
3, if you know the model, directly use the chip function, you can see and download all the datasheet parameter data,You can also see the manufacturer, agent and inventory details, if you do not know the model, you can also use the screen check function, basically can find.
4. Use a screwdriver to pry up the four rubber foot pads on the back of the set-top box, remove the screws inside, and carefully pry open the set-top box with a blade or steel ruler along the gap of the set-top box. At this time you can see the board of the set-top box, if the chip on the board is covered by the radiator or label, you can find a way to remove, so that you can see the chip model.
5, teach you a search method: you search in Taobao screen printing, you can find products, some businessesWill put the full model number on it.
1, patch 38XX series has a 14-pin package. With 3843,3845 can do 12v L 500V output Dc/Dc. Isolation can not be isolated, do not need electric manifold output to do N times double voltage, transformer winding simple.
2, D5 is a high-frequency continuous current diode, indicating that the package should use a high-frequency rectifier diode. The SOT-23 package is a surface mountPackage form, generally pin less than or equal to 5 small shape transistors.
3, the size and size of the electronic chip are different, SOT-353 is smaller than SOT2SOT-23-5; The PITCH (distance from the center point of the part foot to the center point of the part foot) is different; SOT both stand for small transistor packages. The number after the SOT only indicates that the sequence has no practical significance, and the number generally corresponds to different pin spacing.
4, LMV321M5, package and screen printing are right, do not know the specific function of the circuit, not sure is it.
5, screen 321 is a kind of CMOS operational amplifier, model SGM321. Its parameters are operating frequency of 1MHz, maximum operating current of 60A, Vs = 5V, VCM = -0.1V to 4V, RL = 5K, Vo = 0.1V to 9V.
This should be a Texas Instruments power chip. LMV331 series, packaged SOT23-5.
ThisThe chip is a frequency synchronous buck DC-DC regulator chip, the specific model is SY8009, and the output can reach 5A/2A. The following picture shows its pin diagram and typical application circuit.
There is a silk screen on the back of a chip that is BL, and four corners at the foot of the above chip.
How to tell whether the TV is a set-top box function is different, the TV box can watch live TV or other types of on-demand programs, it can also add its own programs, but also can view the countryOutside the channel. Set-top boxes do less.
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Identify the authenticity through the IMEI code on the official website of the mobile phone box.