Product review (5 stars): Prompt delivery exactly what I needed.
My Samsung dryer wouldn't run long before it would shut down an have a " tO " code .  With a little research and reading reviews on Amazon I found this meant the thermistor was open . I ordered this thermistor along with the recommended thermostat part no DC47-00016A I am happy to report my dryer is up and running like new. If this is any help to you the model number of my dryer is DV339AEW/XAA. You can find helpful videos on youtube how to replace it . I hope you find this review helpful.