These enhancement-mode (normally-off) transistors utilize a lateral MOS structure and Supertex's well-proven silicon-gate manufacturing process. This combination produces devices with the power handling capabilities of bipolar transistors and with the high input impedance and negative temperature coefficient inherent in MOS devices. Characteristic of all MOS structures, these devices are free from thermal runaway and thermally-induced secondary breakdown. The low threshold voltage and low onresistance characteristics are ideally suited for hand held battery operated applications.