Power MOSFET series enables high power ratings and power density

Vishay Intertechnology, Inc. now offers a new fourth-generation 650V E Series power MOSFET that supplies high efficiency and power density for industrial, telecom, and computing applications. Compared to previous-generation devices, the Vishay Siliconix n-channel SiHP054N65E slashes on-resistance by 48.2% while delivering a 59% lower resistance times gate charge, a key FOM for 650V MOSFETs used in power conversion applications.

The company provides a wide line of MOSFET technologies that support all stages of the power conversion process, from high-voltage inputs to the low-voltage outputs needed to power the latest high-tech equipment. With the new MOSFET and other devices in the family, the company is meeting the demand for efficiency and power density enhancements in two of the first stages of the power system architecture – PFC and subsequent DC-DC converter blocks.

Built on the company's latest energy-efficient E Series superjunction technology, the device's low typical on-resistance of 0.051-Ohm at 10V results in a higher power rating for applications >2kW and permits the device to address the Open Compute Project's Open Rack V3 standards. Also, the MOSFET provides ultra-low gate charge down to 72nC. The resulting FOM of 3.67-Ohm*nC is 1.1% lower than the nearest competing MOSFET in the same class, which translates into decreased conduction and switching losses to save energy and increase efficiency. This permits the device to meet the specific titanium efficiency needs in server power supplies or reach 96% peak efficiency in telecom power supplies.

For improved switching performance in hard-switched topologies such as PFC, half-bridge, and two-switch forward designs, the MOSFET released today provides low typical effective output capacitances Co(er) and Co(tr) of 115pF and 772pF, respectively. The device's resulting resistance times Co(er) FOM is an industry-low 5.87-Ohm*pF. Offered in the TO-220AB package and providing increased dv/dt ruggedness, the device is RoHS-compliant, halogen-free, and Vishay Green, and it is created to withstand overvoltage transients in avalanche mode with guaranteed limits through 100% UIS testing.

Typical applications will include servers, edge computing, and data storage; UPS; HID lamps and fluorescent ballast lighting; solar inverters; induction heating; motor drives; welding equipment; and battery chargers.