The SMD components marking codes database - Starting with 'A4'.
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.
Resistor values are often indicated with color codes. Practically all leaded resistors with a power rating up to one watt are marked with color bands. The coding is defined in the international standard IEC 60062. This standard describes the marking codes for resistors and capacitors.
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.
Gravotech, Inc. Dot Peen Marking to marking very precise Datamatrix codes on small machined surfaces. The benefits of dot peen: Economical: very low acquisition cost and reduced cost of use due to no comsumables being required (unlike punch, roller, electrochemical or bubble jet marking).Multipurpose: marking on all types of shapes and surfaces thanks to the 3D stylus and on materials with.
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.
KyteLabs InfoBase - Semiconductor Data: Last modified: 2019-09-20 (19679) A: Anhang Appendix: Index Cross Reference: A.9: A.9.2: SMD-Codes SMD Code Reference.
Enter a full or partial SMD code with a minimum of 1 letters or numbers Code: Type Designator: Package: Description: 1002 1002 SOT23 MOSFET 1115 1115 TO220 MOSFET 1481 1481 DFN2X2-6L Transistor 1515 1515 TO247 MOSFET A1T 2015 SOT23 Transistor 213TF 2021 SOT323 Transistor 2301 2301 SOT23 MOSFET 412TF 2341 SOT23 Transistor.