A new 2012 edition smdcodes databook in electronic format from a known author eugeniu. If you repair smd circuit board and found a smal smd transistor wu1, then you should expect that there is another part number that you should search for. Do you have any datasheet about smd codes like b5f4zener diode. Surface mount transistor in mobile phone and their function. Smd resistor code calculator for ios free software, apps.
This calculator quickly determines 4 or 5 band resistor values and tolerances. Npn, pnp surface mount transistor or smt transistor is an smd electronic component made up of semiconductor material like silicon or germanium. But i couldnt find the meaning of the perpendicular l. For pack quantities of 10, an order qty of 1 equals 1 pack of 10, price shown is per pack i. Below are the most common size codes for capacitors and resistors. Cm9nb847a, npn transistor, by canaan microelectronics fmmta43, npn transistor, by zetex kst43, npn transistor, by samsung mmbta43, npn transistor, by itt r31n29ec3, vdetic 2. To identify a particular device, first identify the package style and note the id code printed on the device. Transistor is a semi conductor device which is made as a separate electronic component or as part of integrated circuits. Identifying the manufacturers type number of an smd device from the package code can be a difficult task.
Smdphilips marking codes small signal transistors and diodes free download as pdf file. Apps enter a full or partial smd code with a minimum of 1 letters or numbers minimum 1 letters or numbers. Sega mega drive, a fourthgeneration video game console. Smd resistor or surface mount chip resistor is an electronic component with the properties of both obstruction as well as resistance.
Some resistors use colored bands instead of numbers. I managed to find out that 2x stands for 2n4401 and the dot seems to mean lead free. Marking of electronic components, smd codes 24, 2481d, 24, 24a, 24c, 24n025s, 24t, 24v, 24y. Smdsmt sot233 single npn bipolar transistors bjt are available at mouser electronics. Silver mica disease, a problem with vintage radio tuning circuits. The manufacturers top mark codes are not consistent.
Smd transistor code calculator, welcome to the smd codebook. Nov 05, 2017 sivainstitute of electronics,guntur,sie guntur,sie, laptop chip level mechanism laptop online classes laptop fast track classes,dead led tv, led tv repair,how to repair led tv. Transistor 3401 3401 sot23 mosfet 3415 3415 sot23 mosfet 4401 4401 sop8 transistor 4410 4410 sop8 transistor 4501 4501 sop8 transistor 4611 4611 sop8 transistor 4612 4612 sop8 transistor 4616 4616 sop8 transistor 4812 4812 sop8 transistor 6616 6616 sop8 mosfet 8810 8810 tssop8 transistor 10x 02cz10x. Find smd transistor related suppliers, manufacturers, products and. Aah 20090112 mmbt5401 smd high voltage transistor pnp. The letter at the end identifies versions with different voltage ratings. A similar package style is the to236aa smd transistor. Sivainstitute of electronics,guntur,sie guntur,sie, laptop chip level mechanism laptop online classes laptop fast track classes,dead led tv, led tv repair,how to repair led tv. Transistors may be bipolar or field effect transistor. This is a smt resistor calculator entering a resistor code or resistor value will return the resistor value plus commonly used three and four digit smd codes. Find other surface mount device codes markings or values visit our smt code finder page.
Because the sot23 is a surface mount device smd heat transfer will also be conducted via the component leads. Resistor color code and surface mount device smd calculator software resistor color coder is a free desktop application that has been downloaded by. You can use the calculator below to calculate the resistance of an smd resistor. I think it could be a date code but im not sure and i dont know either what its purpose is e. Here you can download the smd code book that shows smd marking codes for. To look up a coded device, click on the first character of the device code in the table on the left. Smd code in hindi smd marking codes how to confirm. Dear sir i need smd transistor and diode code book. Here you can download the smd code book that shows smd marking codes for almost every surfacemount device available on the market. How to confirm any electronics components with smd marking codes like transistor,diode,mosfet,resistor,capacitor etc. Identifying the manufacturers type number of an smd device from the package code can be a difficult task, involving combing through many. Surfacemount technology smt is a method in which the electrical components are mounted directly onto the surface of a printed circuit board pcb. With the development of these smaller components comes the need for microsized, highly durable codes. Smd resistor code calculator cnet download free software.
Soon you will be speaking the language of surface mount. An electrical component mounted in this manner is referred to as a surfacemount device smd. Although a variety of smt transistor and diode packages are available, some of the most popular are given in the list below. The first letter b is for silicon, a is for germanium rarely used now. These problems are going to remain as long as throughhole components will remain in the smt industry. A lot of smd parts have the same codes but they are diferent.
Surface mount transistor or smt transistor is an smd electronic component made up of semiconductor material like silicon or germanium. Smd high school, srinagar, jammu and kashmir, india. Smd smt sot233 single npn bipolar transistors bjt are available at mouser electronics. The sot23 package is a 3terminal plastic surface mount component. Semiconductor charts smd code reference the solidstate components online database smdcodeindex smd code reference kytelabs infobase semiconductor data. All found in the smd databook 2011, 2500 comprehensive pages.
Resistor color code and smd calculator software electronic circuits. The sot23 smt package is the most common outline for small signal surface mount transistors. To find the component your looking for, either search by part number or visit the relative department. The solidstate components online database smdcodeindex. Identifying the manufacturers type number of an smd device from. Download tables of equivalences smd components transistors and diodes xtronic free electronic circuits and. Larger packages such as dpak and d2 pak are normally sold on inch 330mm reels. Next look up the code in the alphanumeric listing which forms the main part of the pdf book by looking.
What are the differences between chip, smd and trimmable. There are three main series of transistor codes used in the uk. No licence is granted for the use of it other than for information purposes in connection with the products to which it relates. Smd transistor wu1 electronics repair and technology news. Resistor color code and smd calculator software electronic. Smd devices are, by their very nature, too small to carry conventional semiconductor type numbers. Resistor color code and surface mount device smd calculator software. Semiconductor charts smd code reference a smd code index smd code reference the solidstate components online database kytelabs infobase semiconductor data. Semiconductor charts smd code reference f smdcodeindex smd code reference the solidstate components online database kytelabs infobase semiconductor data. Identify smd smt electronic components by their marking codes. This means that if you could not locate or buy the smd transistor wu1, you can buy the. Smd resistors have a code consisting of three or four number or letters. Download tables of equivalences smd components transistors. Code software andor firmware is owned by cypress semiconductor.
These identifiers are used for product serialization, supporting antipiracy and. To identify a particular smd device, first identify the package style and note the id code printed on the device. Enter a full or partial smd code with a minimum of 1 letters or numbers code. The property of this component is called resistance. Smd components for smt surface mount electronic device smd. Resistor color coder is a free desktop application that has been downloaded by hundreds of thousands of electronics enthusiasts. For example, with a 6h smdcode in a sot23 case might be either a npntransistor bc818 cdil or a capacitancediode fmmv2104 zetex or a nchannel jfet transistor mmbf5486 motorola or a pnpdigital transistor mun21. For example, with a 6h smd code in a sot23 case might be either a npn transistor bc818 cdil or a capacitancediode fmmv2104 zetex or a nchannel jfet transistor mmbf5486 motorola or a pnpdigital transistor mun21 motorola or a pnpdigital transistor un2117 panasonic or a cmosintegrated circuit voltage detector with reset. Smd code in hindi smd marking codes how to confirm any. Therefore new resistor smd codes have been developed. Remember, not all electronic components are available as smd surface mount device. Jun 25, 2018 smd devices are, by their very nature, too small to carry conventional semiconductor type numbers. Codes beginning with b or a, for example bc108, bc478. Smdsmt sot233 single npn bipolar transistors bjt mouser.
Selective assembly of throughhole components such as sockets and connectors. Surface mount transistor in mobile phone smt transistor is smd part made of semiconductors like silicon or germanium. Instead, a somewhat arbitrary coding system has grown up, where the device package carries a simple two or threecharacter id code. This data sheet and its contents the information belong to the members of the premier farnell group of companies the group or are licensed to it. Enter a full or partial smd code with a minimum of 1 letters or numbers. This simple and accurate calculator for your iphone or ipad, will help you determine the value of any smd resistor. Smd devices are, by their very nature, too small to carry conventional.
Iata and faa identifier for smith field indiana airport, fort wayne, indiana, us. Smaller sot packages are mounted on 7 inch 178mm reels. The part number is dta144 which is a pnp digital silicon transistor. Semiconductor charts smd code reference the solidstate components online database smd codeindex smd code reference kytelabs infobase semiconductor data. A surface mount device smd transistor is a type of transistor that is soldered directly onto the surface of a computer component board.
How to identify smd devices from the codes on top of the component. The most commonlyused codes are threedigit and fourdigit systems, and an electronic industries alliance eia system called eia96. This booklet is a plainenglish introduction to surface mount nomenclature and packaging. Smd resistor code calculator free this simple and accurate calculator for your iphone or ipad, will help you determine the value of any smd resistor. The smd codebook is a reference for surface mount device semiconductor device codes, equivalents and connections smd transistor marking codes the smd codebook. Majority of transistors are silicon types and they can tolerate high temperature. Marking of electronic components, smd codes 24, 2481d, 24. Next look up the code in the alphanumeric listing which forms the main part of the pdf book by looking for the first character in the left column. Because of the small size of smd resistors, there is no room for traditional colour band codes to be printed on them. The initial 2n identifies the part as a transistor and the rest of the code identifies the particular transistor. Page 2 of 3 electrical characteristics t ambient25. For instance, the common 3904 smt transistor from diodes inc. Although transistors mounted this way can break off more easily, boards that utilize the smd transistor are cheaper to produce than others.
Our database currently has 3224 smd marking codes of bipolar transistors bjt, field effect transistors fet, mosfet, jfet, diodes, zener diodes, schottky diodes, varicap diodes, voltage supervisors reset circuits, temperature sensors, current sensors, transient voltage suppressors tvs and others. There are no leads to shorten to increase heat conduction as in a thruhole component. No licence is granted for the use of it other than for information purposes in connection with the products to. Electronics coding and marking of electronic components application note the electronics industry is experiencing vigorous growth in microelectronic components. Surface mount transistor smd transistor code, types. Smd philips marking codes small signal transistors and diodes free download as pdf file. Find out the value of any smd resistor marked with the threedigit, fourdigit or eia96 code. Aah 20071011 mmbt2907a smd general purpose transistor pnp. Transistor codes surface mount, pnp, npn, choosing. Orientation caution must be taken in ordering sot23 with the correct orientation. In industry, this approach has largely replaced the throughhole technology construction method of fitting components, in large part because smt allows. My experience with this question will not make you happy. Tape and reel is the most popular packaging for smd transistors and diodes. Electronics coding and marking of electronic components.
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