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.
Tag Archive: explode
Jan
18
C945 transistor explodes in differential amp
An unfortunate accident while probing one of the transistors in part of a differential amp circuit led to a related transistor exploding. Credit: edman007.
Jan
18
MJE 13001 explodes in a GMT-TR20 USB Charger
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
Dec
11
Varistor on UPS cracks
The burned part shown appears to be a MOV (Metal-oxide Varistor). The purpose of a MOV is to have a very high resistance until a certain voltage is reached at which point it will conduct current, in this case from “Hot” to “Neutral.” This property is useful for surge protectors. Original poster says this UPS …
Nov
25
Dynapower DP-40205 with exploded FET
These pictures come from a Dynapower USA DP-40205 400W power supply. It appears the standby regulation failed and took out the FET pictured above and also the capacitor and resistor near the top of the fan. The exploded piece of the FET was rattling around the power supply when it was opened and the part …