STL128D STMicroelectronics

STL128D High voltage fast-switching NPN power transistor Features High voltage capability Low spread of dynamic parameters TAB Very high switching speed Integrated antiparallel collector-emitter diode Applications 3 3 2 2 1 1 Electronic ballast for fluorescent lighting TO-220 TO-220FP Flyback and forward single transistor low power converters Description These devices are high voltage fast-switching Figure 1. Internal schematic diagram NPN power transistors. They are manufactured using high voltage multi epitaxial planar technology for high switching speeds and medium voltage capability. They use a cellular emitter structure with planar edge termination to enhance switching speeds while maintaining the wide RBSOA. The devices are designed for use in lighting applications and low cost switch-mode power supplies. Table 1. Device summary Order codes Marking Packages Packaging STL128D L128D TO-220 Tube STL128DFP L128DFP TO-220FP Tube June 2011 Doc ID 018977 Rev 1 1/12 www.st.com 12Content STL128D Content 1 Electrical ratings 3 2 Electrical characteristics . 4 2.1 Electrical characteristics (curves) 5 3 Package mechanical data . 7 4 Revision history . 11 2/12 Doc ID 018977 Rev 1