Identifying Which Side Of A Switching Transistor Is The Collector

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In plastic casing, one side of the transistor is Flat which is the front side and the pins are arranged serially. To identify the pins, keep the front flat side facing you and count the pins as one, two etc. In most NPN transistors it will be 1 Collector , 2 Base and 3 Emitter .. - In a bipolar transistor, each "PN" junction is essentially a diode. The other two pins will be the collector and emitter. Determining Collector and Emitter Pins In case of transistor which side is emitter and which is collector? Switch the Multimeter to the Resistance meter mode, then basi.y a transistor means it has .Electronics Tutorial about the Transistor as a Switch and using the Transistor as a either NPN or PNP is arranged to operate the transistor at both sides of the " I-V When used in this way, the transistors open collector output can thus "sink" an This White Paper will identify the pros and cons of Single Board Computers .

The construction and terminal voltages for an NPN transistor are shown above. The PNP Transistor has very similar characteristics to their NPN bipolar cousins, except that the polarities or biasing of the current and voltage directions are reversed for any one of the possible three configurations looked at in the first tutorial, Common Base, Common Emitter and Common Collector..Fig 1. NPN Transistor: Fig 1 shows an NPN transistor with the covering the symbol showing the name for each lead. The leads are BASE, COLLECTOR and EMITTER. The transistor shown in the p.o has a metal case with a tiny tag next to the emitter lead..Back to SMPS Repair FAQ Table of Contents. Switchmode Power Supply Troubleshooting SAFETY The primary danger to you is from the input side of the supply which is directly connected to the AC line and will have large electrolytic capacitors with 320 V or greater DC when powered often, even if the supply does not work correctly .Back to Sam's Gadget FAQ Table of Contents. Introduction Getting Into Troubleshooting This do.ent attempts to provide an entry to the world of consumer electronics troubleshooting and repair..

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    The construction and terminal voltages for an NPN transistor are shown above. The PNP Transistor has very similar characteristics to their NPN bipolar cousins, except that the polarities or biasing of the current and voltage directions are reversed for any one of the possible three configurations looked at in the first tutorial, Common Base, Common Emitter and Common Collector..

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    Fig 1. NPN Transistor: Fig 1 shows an NPN transistor with the covering the symbol showing the name for each lead. The leads are BASE, COLLECTOR and EMITTER. The transistor shown in the p.o has a metal case with a tiny tag next to the emitter lead..

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    Back to SMPS Repair FAQ Table of Contents. Switchmode Power Supply Troubleshooting SAFETY The primary danger to you is from the input side of the supply which is directly connected to the AC line and will have large electrolytic capacitors with 320 V or greater DC when powered often, even if the supply does not work correctly .

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    Back to Sam's Gadget FAQ Table of Contents. Introduction Getting Into Troubleshooting This do.ent attempts to provide an entry to the world of consumer electronics troubleshooting and repair..

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