KSD1020-G Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 25 V
• Collector-Base Voltage, max: 30 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 0.7 A
• Collector Dissipation: 0.35 W
• DC Current Gain (h_fe): 200 to 400
• Transition Frequency, min: 170 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-92S

Here is an image showing the pin diagram of this transistor.The KSD1020-G transistor can have a current gain of 200 to 400. The gain of the KSD1020 will be in the range from 120 to 400, for the KSD1020-Y it will be in the range from 120 to 240.The complementary PNP transistor to the KSD1020-G is the KSB810-G.The 2SC2859 (SOT-23), 2SC2859-GR (SOT-23), 2SC4118 (SOT-323), 2SC4118-GR (SOT-323), BC818 (SOT-23), BC818-25 (SOT-23), BC818-25W (SOT-323), BC818W (SOT-323), KTC3876 (SOT-23), KTC3876GL (SOT-23), KTC3876S (SOT-23) and KTC3876S-GL (SOT-23) is the SMD version of the KSD1020-G transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the KSD1020-G with the 2SC2001, 2SC2001-K, 2SC2500, 2SC2500-A, 2SC2500-B, 2SC2500-C, 2SC2500-D, 2SC4408, 2SC4604, 2SD1207, 2SD1207-T, 2SD1347, 2SD1347T, 2SD1616, 2SD1616-K, 2SD1835, 2SD1835-T, 2SD471, 2SD471K, 2SD545, 2SD789, KSC2500, KSC2500-A, KSC2500-B, KSC2500-C, KSC2500-D, KSC5019, KSD1021, KSD1021-G, KSD1616, KSD1616-G, KSD471AC or KSD471ACG.