Pn2222a 3.pdf Size:50K philips DISCRETE SEMICONDUCTORS DATA SHEET book, halfpage M3D186 PN2222A NPN switching transistor 1999 May 21 Product specification Supersedes data of 1997 May 05 Philips Semiconductors Product specification NPN switching transistor PN2222A FEATURES PINNING.
Circuit Diagram: The circuit has only one transistor with a relay as load at its collector.
The circuit is simple but really efficient and works the best. It consists of a relay, a transistor and some passive devices like resistors, capacitors and switches. One 2N2222 transistor code lock system is a simplest electronic code lock system. Available as JAN, JANTX, and JANTXV MAXIMUM RATINGS (TA = 25☌ unless otherwise noted) Characteristic Symbol Value Unit Collector−Emitter Voltage VCEO 50 Vdc Collector−Base Voltage VCBO 75 Vdc Emitter−Base Voltage VEBO 6.0 Vdc Collector Current − Continuous IC 800 mAdc.
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