Magic Blue Smoke » Transistors http://www.magicbluesmoke.org When good electronics go bad. Fri, 27 Jan 2012 18:03:37 +0000 en hourly 1 http://wordpress.org/?v=3.3.1 Vaporized pin on FAN3227 http://www.magicbluesmoke.org/322/vaporized-pin-on-fan3227 http://www.magicbluesmoke.org/322/vaporized-pin-on-fan3227#comments Thu, 19 Aug 2010 01:13:53 +0000 MagicBlueSmoke http://www.magicbluesmoke.org/?p=322 FAN3227 FET

FAN3227

The output and ground were shorted on this FAN3227 FET driver chip which caused the supply pin to vaporize.  The application was a motor controller.

Credit: TekniQue on EFnet

]]> http://www.magicbluesmoke.org/322/vaporized-pin-on-fan3227/feed 0 2N3904 transistor from class project power supply http://www.magicbluesmoke.org/288/2n3904-transistor-from-class-project-power-supply http://www.magicbluesmoke.org/288/2n3904-transistor-from-class-project-power-supply#comments Tue, 20 Apr 2010 00:37:10 +0000 MagicBlueSmoke http://www.magicbluesmoke.org/?p=288

2n3904 transitor from class project

A nice picture of a 2n3904 transistor used in a class project power supply that was destroyed along with other components not shown after a probable short.  Credit:  Lucas T.

]]> http://www.magicbluesmoke.org/288/2n3904-transistor-from-class-project-power-supply/feed 0 C945 transistor explodes in differential amp http://www.magicbluesmoke.org/245/c945-transistor-explodes-in-differential-amp http://www.magicbluesmoke.org/245/c945-transistor-explodes-in-differential-amp#comments Tue, 19 Jan 2010 01:48:49 +0000 MagicBlueSmoke http://www.magicbluesmoke.org/?p=245

Transistor in amplifier explodes

Transistor casing piece

An unfortunate accident while probing one of the transistors in part of a differential amp circuit led to a related transistor exploding.  Credit:  edman007.

]]> http://www.magicbluesmoke.org/245/c945-transistor-explodes-in-differential-amp/feed 0 MJE 13001 explodes in a GMT-TR20 USB Charger http://www.magicbluesmoke.org/236/mje-13001 http://www.magicbluesmoke.org/236/mje-13001#comments Tue, 19 Jan 2010 01:30:43 +0000 MagicBlueSmoke http://www.magicbluesmoke.org/?p=236 MJE13001 in GMT-TR20 explodes

MJE13001 in GMT-TR20 explodes

This transistor comes from a GMT-TR20 USB phone charger which was distributed with the L7, L9 and other phones.  After the explosion a trace to the transistor was destroyed and the PCB was blackened.  Wire was run to replace the damaged traces and after the transistor was replaced the charger worked again.  Credit:  http://gushh.net/blog

]]> http://www.magicbluesmoke.org/236/mje-13001/feed 0 Xbox power supply failure damages pcb http://www.magicbluesmoke.org/187/xbox-power-supply-failure-damages-pcb http://www.magicbluesmoke.org/187/xbox-power-supply-failure-damages-pcb#comments Sat, 28 Nov 2009 00:44:55 +0000 MagicBlueSmoke http://www.magicbluesmoke.org/?p=187

Continue reading »]]> xbox power supply fries PCB

This appears to be an Xbox revision 1.1 where the power supply failure caused significant damage to the PCB.  The vented capacitor in the picture is a 680uF/16V capacitor which shorted, damaged the FET, and led to the failure of the power plane.  Ideally the power supply should sense failure conditions and shut down.  The FET was a Philips 21N06.  Credits: Ahmad Tabbouch of http://ultrakeet.com.au.

]]> http://www.magicbluesmoke.org/187/xbox-power-supply-failure-damages-pcb/feed 0