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.
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.
When the resistor body surface is large enough, as in large wattage resistors, the resistance value, tolerance, and wattage are usually printed on the body of the resistor. Surface mounted resistors (SMD) use another coding system that uses alphanumeric codes printed on its surface instead of color codes.
Some of the special diodes areZener diode, Schottky diode,Varactor Diode, Tunnel diode, Gunn Diode, Light Emitting Diode(LED) etc. Apart from Schottky Diode, rest of the diodes are made by forming P-type semiconductor to N-type semiconductor. A schottky diode is formed between a semiconductor and a metal layer. The charge storage that limits.
SMD marking codes Identify SMD (SMT) electronic components by their marking codes. 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.
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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.
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.