Don"t worry about abrupt changes in the power supply when you install this negative voltage TPS2393PWG4 hot swap controller IC from Texas Instruments. Its typical operating supply voltage is -48 V. In order to ensure parts aren"t damaged by bulk packaging, this product comes in tube packaging to add a little more protection by storing the loose parts in an outer tube. This device has a typical operating supply voltage of -48 V. Its minimum operating supply voltage of -20 V, while its maximum is -80 V. This hot swap controller has an operating temperature range of -40 °C to 85 °C.