2SD985 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 60 V
• Collector-Base Voltage, max: 150 V
• Emitter-Base Voltage, max: 8 V
• Collector Current − Continuous, max: 1.5 A
• Collector Dissipation: 10 W
• DC Current Gain (h_fe): 2000 to 30000
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-126

Here is an image showing the pin diagram of this transistor.The 2SD985 transistor can have a current gain of 2000 to 30000. The gain of the 2SD985-K will be in the range from 8000 to 30000, for the 2SD985-L it will be in the range from 4000 to 10000, for the 2SD985-M it will be in the range from 2000 to 5000.Sometimes the "2S" prefix is not marked on the package - the 2SD985 might only be marked "D985".The complementary PNP transistor to the 2SD985 is the 2SB794.You can replace the 2SD985 with the 2SD1509, 2SD986, BD167, BD169, BD189, BD235, BD235G, BD237, BD237G, BD677, BD677A, BD677AG, BD677G, BD679, BD679A, BD679AG, BD679G, BD681, BD681G, BD777, BD779, KSB985, KSB986, KSE800, KSE801, KSE802, KSE803, MJE225, MJE242, MJE244, MJE270, MJE270G, MJE721, MJE722, MJE800, MJE800G, MJE801, MJE801G, MJE802, MJE802G, MJE803 or MJE803G.