The exception is that they provide a higher hFE of 250 minimum. Offered as enhanced versions of the FMMT491 and 591, the CMPT491E (npn) and CMPT591E (pnp) complementary transistor pair retain all ...

The goal of this series is to maximize the voltage gain of the single transistor amplifier. I had always thought that hFE had a profound effect upon voltage gain, so I set out to determine how ...

Figure 1: Confocal images of TfR and HFE–GFP distributions in untransfected and HFE-transfected HuTu-80 cells. Figure 2: Confocal images of the distributions of HFE, transferrin and calnexin in ...

Meticulous family and HLA association studies followed ultimately by cloning of the HFE gene have dramatically changed our understanding of the natural history and manifestations of HH.

Imec researchers have set a new benchmark in RF transistor performance for mobile applications. They present a gallium ...

General Atomics Aeronautical Systems, Inc. (GA-ASI) last month completed the final qualification test for its new Heavy Fuel Engine (HFE) 2.0 set to power the upgraded Gray Eagle (GE) 25M drone.

To accommodate a wide range of hFE’s, the base divider current is in the range of 5 to 10 * base current. The transistors used have hFE’s ranging from 58 to 414. Observe variations in Vbe: (0.615 to 0 ...