KSC3503-F Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 300 V
• Collector-Base Voltage, max: 300 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 0.1 A
• Collector Dissipation: 7 W
• DC Current Gain (h_fe): 160 to 320
• Transition Frequency, min: 150 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 KSC3503-F transistor can have a current gain of 160 to 320. The gain of the KSC3503 will be in the range from 40 to 320, for the KSC3503-C it will be in the range from 40 to 80, for the KSC3503-D it will be in the range from 60 to 120, for the KSC3503-E it will be in the range from 100 to 200.The complementary PNP transistor to the KSC3503-F is the KSA1381-F.The BF620 (SOT-89), BF820 (SOT-23) and PMBTA42 (SOT-23) is the SMD version of the KSC3503-F transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the KSC3503-F with the 2SC2899, 2SC3417, 2SC3417-F, 2SC3503, 2SC3503-F, 2SC3789, 2SC3789-F, 2SC3790, 2SC3790-F, BD128, BD129, BUX86, BUX87 or KSC2258A.