![]() Note that in your specific case, the code you're looking for is probably just "331". If the manufacturer no longer exists, or has gotten bought up by another company decades ago, you're probably just out of luck. 2N2222A Bipolar (BJT) Transistor NPN 40 V 800 mA 500 mW Through Hole TO-18 from onsemi. Even if you do know the manufacturer, these codes are meant mostly for the manufacturer's internal reference, so they might not be explained on the datasheet. There is no standard, so without knowing the manufacturer, you're out of luck. But fitting that along with the part number on a TO-92 or TO-18, let alone a SOT-23 or SC-70, is pretty tough, so other codes are used instead. On parts with more room than a TO-92 or TO-18 provides, you might get a one-digit factory code for which factory the part was made in, combined with a four-digit date code consisting of the last two digits of the year and two digits indicating which week of the year it was made in. *This information is for general informational purposes only, we will not be liable for any loss or damage caused by the above information.The usual practice is to put some manufacturer-specific code that identifies which lot the device came from. Transistor 2N2907 - 2N2907 A331 - PNP - TO-92 - Arduino - 10 pièces. NOTE : These devices are also available in Defence, HIREL and Miltary Grades Device Types 2N2221A,22A 40V,800mA See the data sheet for 2N2221A 2N2222A. The base is connected with a 330Ohm resistor or a 10K resistor (I’ve. ![]() On the figure, C represents the collector side of the transistor and E represents the emitter side, R represents the 12 volt relay and M represents the Multi-meter. The company was acquired by ON Semiconductor in 2016 and its products and technologies continue to be developed and sold under the ON Semiconductor brand. 10x Transistor 2N2907 - 2N2907 A331 - PNP - TO-92 - 94tran037. I’ve used a 2n2222 Transistor, an Arduino Uno, a 12 volt power supply, a 12 volt relay and a multi-meter. 2N2222A Bipolar (BJT) Transistor Array 40V 800mA 1.2W Through Hole TO-18 from Solid State Inc. The company was known for its innovation in the development of the first commercial transistor and for its contributions to the advancement of the integrated circuit technology.įairchild became a leading supplier of power semiconductors, analog and mixed-signal integrated circuits, and other semiconductor products. Devices available in transistor configuration include:2N 2222A C S M 2N 23 69A C S M 2N 2907A C S M 2N 918C S M LCC1 Package Plus many others, thermal tracking between the die. Fairchild Semiconductor was a pioneering semiconductor company that was founded in the late 1950s.
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