2SD1682-T Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 50 V
• Collector-Base Voltage, max: 60 V
• Emitter-Base Voltage, max: 6 V
• Collector Current − Continuous, max: 2.5 A
• Collector Dissipation: 10 W
• DC Current Gain (h_fe): 200 to 400
• Transition Frequency, min: 140 MHz
• 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 2SD1682-T transistor can have a current gain of 200 to 400. The gain of the 2SD1682 will be in the range from 100 to 560, for the 2SD1682-R it will be in the range from 100 to 200, for the 2SD1682-S it will be in the range from 140 to 280, for the 2SD1682-U it will be in the range from 280 to 560.Sometimes the "2S" prefix is not marked on the package - the 2SD1682-T might only be marked "D1682-T".The complementary PNP transistor to the 2SD1682-T is the 2SB1142-T.The 2SD1623 (SOT-89) and 2SD1623-T (SOT-89) is the SMD version of the 2SD1682-T transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the 2SD1682-T with the 2SD1348, 2SD1348-T, 2SD1683, 2SD1683-T, 2SD1722, 2SD1722-R, 2SD1723, 2SD1723-R, 2SD1724, 2SD1724-R, 2SD1725, 2SD1725-R, BD189, BDX35, BDX36, BDX37, MJE225, MJE242 or MJE244.