Notice that there are really only three connections to the traces coming in. That tells me it is a MOSFET in the SOIC-8 package. Especially since the unique input is pin 4 (pins 1,2,3 are shared as are the pins on the far side 5-8).
Here is your likely answer - a very low R(on) MOSFET.
HP4410DY (datasheets from Fairchild and Intersil seem to be available)
Notice that there are really only three connections to the traces coming in. That tells me it is a MOSFET in the SOIC-8 package. Especially since the unique input is pin 4 (pins 1,2,3 are shared as are the pins on the far side 5-8).
Here is your likely answer - a very low R(on) MOSFET.
HP4410DY (datasheets from Fairchild and Intersil seem to be available)
You were absolutely right
I purchased an - International Rectifier SI4410DYPBF N-channel MOSFET Transistor, 10 A, 30 V, 8-Pin SOIC
Stock no.: 541-2414, From **broken link removed**
Very tricky to desolder and solder in the replacement. However the device is now working normally again so i am delighted.
Tks so much for the Link as I got exactly the same component.