. Electronic Components Datasheets bux87 free download

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BUX87 High voltage NPN power transistor Features High voltage capability (450 V VCEO) Minimum lot-to-lot spread for reliable operation High DC current gain Applications 1 Flyback and forward single transistor low 2 3 power converters SOT-32 Description The BUX87 is manufactured using high voltage multi-epitaxial planar technology for high Figure 1. Internal schematic diagram switching speeds and high voltage withstand capability. Table 1. Device summary Order code Marking Package Packaging BUX87 BUX87 SOT-32 Tube April 2009 Doc ID 4508 Rev 5 1/9 www.st.com 9 Electrical ratings BUX87 1 Electrical ratings Table 2. Absolute maximum ratings Symbol Parameter Value Unit VCES Collector-emitter voltage (VBE = 0) 1000 V VCEO Collector-emitter voltage (IB = 0) 450 V VEBO Emitter-base voltage (IC = 0) 5 V IC Collector current 0.5 A ICM Collector peak current (tp 5ms) 1 A IB Base current 0.3 A IBM Base peak current (tp 5ms) 0.6 A PTOT Total power dissipation at Tc = 25