2SC3540 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 80 V
• Collector-Base Voltage, max: 100 V
• Emitter-Base Voltage, max: 7 V
• Collector Current − Continuous, max: 5 A
• Collector Dissipation: 25 W
• DC Current Gain (h_fe): 70 to 240
• Transition Frequency, min: 120 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-220F

Here is an image showing the pin diagram of this transistor.The 2SC3540 transistor can have a current gain of 70 to 240. The gain of the 2SC3540 will be in the range from 70 to 240, for the 2SC3540-O it will be in the range from 70 to 140, for the 2SC3540-Y it will be in the range from 120 to 240.Sometimes the "2S" prefix is not marked on the package - the 2SC3540 might only be marked "C3540".The complementary PNP transistor to the 2SC3540 is the 2SA1388.The BDP951 (SOT-223) and BDP953 (SOT-223) is the SMD version of the 2SC3540 transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the 2SC3540 with the 2SC1986, 2SC2334, 2SC3258, 2SC3308, 2SC3346, 2SC3710, 2SC3710A, 2SD1270, 2SD1271, 2SD1274, 2SD1274A, 2SD1274B, 2SD1355, 2SD1362, 2SD1407, 2SD1407A, 2SD1411, 2SD1411A, 2SD2059, 2SD363, 2SD525, 2SD613, 2SD772, 2SD792, 2SD823, 2SD866, 2SD866A, BD243B, BD243C, BD537, BD539B, BD539C, BD539D, BD543B, BD543C, BD545B, BD545C, BD799, BD801, BD809, BD951, BD953, BD955, BDT83, BDT83F, BDT85, BDT85F, BDT87, BDT87F, BDX77, D44H11, D44H11FP, KSC2334, KSD363, KTC2018, KTC2028, KTD2059, MJE15028, MJE15028G, MJE15030, MJE15030G, MJF15030, MJF15030G, TIP41D, TIP41E, TIP41F, TIP42D, TIP42E or TIP42F.