SWITCHMODE NPN Silicon Planar Power Transistor

The BUH51 has an application specific state−of−art die designed for use in 50 W Halogen electronic transformers.
This power transistor is specifically designed to sustain the large inrush current during either the startup conditions or under a short circuit across the load.

• Improved Efficiency Due to the Low Base Drive Requirements:
   High and Flat DC Current Gain hFE
   Fast Switching
• Epoxy Meets UL 94 V−0 @ 0.125 in
• ESD Ratings:
   Machine Model, C
   Human Body Model, 3B
• This device is available in Pb−free package(s). Specifications herein
   apply to both standard and Pb−free devices. Please see our website at
   www.onsemi.com for specific Pb−free orderable part numbers, or
   contact your local ON Semiconductor sales office or representative.