2STL1525 Low voltage high performance NPN power transistor Features Very low collector-emitter saturation voltage High current gain characteristic Fast switching speed Applications Emergency lighting LED drive TO-92MOD TO-92MOD-AP Motherboard and hard disk drive Mobile equipment DC-DC converter, voltage regulation Figure 1. Internal schematic diagram Description The device is a NPN transistor manufactured using new PB-HCD (power bipolar high current density) technology. The resulting transistor shows exceptional high gain performances coupled with very low saturation voltage. Table 1. Device summary Order codes Marking Package Packaging 2STL1525 2STL1525 TO-92MOD Bag 2STL1525-AP 2STL1525 TO-92MOD-AP Ammopack December 2010 Doc ID 16054 Rev 2 1/8 www.st.com 8 Obsolete Product(s) - Obsolete Product(s) Electrical ratings 2STL1525 1 Electrical ratings Table 2. Absolute maximum ratings Symbol Parameter Value Unit V Collector-emitter voltage (V = -1.5 V) 95 V CEX BE V Collector-emitter voltage (I = 0) 25 V CEO B V Emitter-base voltage (I = 0) 5 V EBO C I Collector current 5 A C I Collector peak current (t < 5 ms) 10 A CM P I Base current 1 A B P Total dissipation at T = 25 C 1.5 W TOT amb T Storage temperature -65 to 150 C STG T Max. operating junction temperature 150 C J Table 3. Thermal data Symbol Parameter Value Unit R Thermal resistance junction-ambient max 83 C/W thJA 2/8 Doc ID 16054 Rev 2 Obsolete Product(s) - Obsolete Product(s)