KSD1406 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 60 V
• Collector-Base Voltage, max: 60 V
• Emitter-Base Voltage, max: 7 V
• Collector Current − Continuous, max: 3 A
• Collector Dissipation: 25 W
• DC Current Gain (h_fe): 60 to 300
• Transition Frequency, min: 3 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-220F
• Electrically Similar to the Popular 2SD1406 transistor

Here is an image showing the pin diagram of this transistor.The KSD1406 transistor can have a current gain of 60 to 300. The gain of the KSD1406-G will be in the range from 150 to 300, for the KSD1406-O it will be in the range from 60 to 120, for the KSD1406-Y it will be in the range from 100 to 200.The complementary PNP transistor to the KSD1406 is the KSB1015.You can replace the KSD1406 with the 2SC1826, 2SC1985, 2SC1986, 2SC2075, 2SC3179, 2SC3851, 2SC3851A, 2SD1134, 2SD1274, 2SD1274A, 2SD1274B, 2SD1354, 2SD1406, 2SD1761, 2SD313, 2SD613, 2SD823, 2SD880, BD203, BD241A, BD241B, BD241C, BD243A, BD243B, BD243C, BD303, BD535, BD537, BD539A, BD539B, BD539C, BD539D, BD543A, BD543B, BD543C, BD545A, BD545B, BD545C, BD797, BD799, BD801, BD807, BD809, BD949, BD951, BD953, BD955, BDT81, BDT81F, BDT83, BDT83F, BDT85, BDT85F, BDT87, BDT87F, BDX77, D44H11, D44H11FP, D44H8, KSD2058, KSD880, KTD1351, MJE15028, MJE15028G, TIP41D or TIP42D.