A through hole resistor is around 6-7 mm size and Surface mount resistor is very small it is around 3-4 mm size so it is clear that manufacturer can’t write all information on component that’s why these Resistor color code developed. Printing color band is very much easy on small component. Even for surface mount resistor a different coding system developed which will explain later.
SMD codes SMD resistor code: SMD codes SMD marking codes, SMD datasheets, SMD devices are, by their very nature, too small to carry conventional semiconductor type numbers. Instead, a somewhat arbitrary coding system has grown up, where the device package carries a simple two- or three-character ID code. This HTML book is designed to provide an easy means of device identification. It lists.
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This is revision 4 of the list of marking codes for MCC's SMD devices.
The notation to state a resistor's value in a circuit diagram varies. One common scheme is the RKM code following IEC 60062.It avoids using a decimal separator and replaces the decimal separator with a letter loosely associated with SI prefixes corresponding with the part's resistance. For example, 8K2 as part marking code, in a circuit diagram or in a bill of materials (BOM) indicates a.
THE SMD CODEBOOK SMD Codes. SMD devices are, by their very nature, too small to carry conventional semiconductor type numbers. Instead, a somewhat arbitrary coding system has grown up, where the device package carries a simple two- or three-character ID code. Identifying the manufacturers' type number of an SMD device from the package code can be a difficult task, involving combing through.
Three methods of resistor markings are predominant - color coding, numerical value coding and three-digit symbol coding. MIL-PRF-55342 assigns part numbers using alpha-numeric coding. Tolerance, temperature, package style and failure rate are integrated into some numbering schemes.
SMD Code Search. Enter a full or partial SMD code with a minimum of 1 letters or numbers.