View bs170 datasheet:

BS170Small Signal MOSFET500 mA, 60 VoltsN-Channel TO-92 (TO-226)Featureswww.onsemi.com This is a Pb-Free Device*500 mA, 60 VoltsMAXIMUM RATINGSRating Symbol Value Unit RDS(on) = 5.0 WDrain-Source Voltage VDS 60 VdcN-ChannelGate-Source Voltage- Continuous VGS 20 Vdc D- Non-repetitive (tp 50 ms) VGSM 40 VpkDrain Current (Note) ID 0.5 AdcTotal Device Dissipation @ TA = 25C PD 350 mWGOperating and Storage Junction TJ, Tstg -55 to CTemperature Range +150SStresses exceeding those listed in the Maximum Ratings table may damage thedevice. If any of these limits are exceeded, device functionality should not beassumed, damage may occur and reliability may be affected.NOTE: The Power Dissipation of the package may result in a lower continuousdrain current.TO-92 (TO-226)CASE 29STYLE 30*For additional information on our Pb-

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