BUL38D

BUL38D High voltage fast-switching NPN power transistor Features ■ High voltage capability ■ Low spread of dynamic parameters ■ Minimum lot-to-lot spread for reliable operation ■ Very high switching speed ■ High ruggedness ■ Fully characterized at 125 °C ■ Integrated antiparallel collector-emitter diode Applications ■ Electronic transformers for halogen lamps ■ Switch mode power supplies Description The BUL38D is manufactured using high voltage multi epitaxial planar technology for high switching speeds and high voltage capability. The device is designed for use in electronic transformer for halogen lamps. 3 2 1 TO-220 Figure 1. Internal schematic diagram Table 1. Device summary Order code Marking (1) Package Packaging BUL38D BUL38D A or BUL38D B TO-220 Tube 1. Product is pre-selected in DC current gain (group A and group B). STMicroelectronics reserves the right to ship either groups according to production availability. Please contact your nearest STMic...