This part is a kind of semiconductor called BUZ100SL-4.
Function of this product has SIPMOS Power Transistor (Quad-channel Enhancement mode Logic level Avalanche-rated d v/d t rated).
Manufacturers : Siemens Semiconductor Group
Image and pinout :

Some of the text within the PDF file :
Preliminary data BUZ 100SL-4 SIPMOS ® Power Transistor • Quad-channel • Enhancement mode • Logic level • Avalanche-rated • dv/dt rated Type BUZ 100SL-4 VDS 55 V ID 7.4 A RDS(on) 0.023 Ω Package P-DSO-28 Ordering Code C67078-S. . . .- . . Maximum Ratings Parameter Continuous drain current one channel active Symbol Values 7.4 Unit A ID IDpuls 29.6 TA = 25 °C Pulsed drain current one channel active TA = 25 °C Avalanche energy, single pulse EAS 380 dv/dt 6 mJ ID = 7.4 A, VDD = 25 V, RGS = 25 Ω L = 13.8 mH, Tj = 25 °C Reverse diode dv/dt kV/µs IS = 7.4 A, VDS = 40 V, diF/dt = 200 A/µs Tjmax = 175 °C Gate source voltage Power dissipation ,one channel active VGS Ptot ± 14 2.4 V W TA = 25 °C Operating temperature Storage temperature IEC climatic category [ ... ]
BUZ100SL-4 PDF Datasheet Download
