KSC945CY Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 50 V
• Collector-Base Voltage, max: 60 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 0.15 A
• Collector Dissipation: 0.25 W
• DC Current Gain (h_fe): 120 to 240
• Transition Frequency, min: 300 MHz
• Noise Figure, max: 4 dB
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-92

The KSC945CY is manufactured in a plastic TO-92 case. When looking at the flat side with the leads pointed downward, the three leads emerging from the transistor are, from left to right, the emitter, collector, and base leads. Suffix "C" means center collector in KSC945Y.
Here is an image showing the pin diagram of this transistor.The KSC945CY transistor can have a current gain of 120 to 240. The gain of the KSC945C will be in the range from 40 to 700, for the KSC945CG it will be in the range from 200 to 400, for the KSC945CL it will be in the range from 350 to 700, for the KSC945CO it will be in the range from 70 to 140, for the KSC945CR it will be in the range from 40 to 80.The complementary PNP transistor to the KSC945CY is the KSA733CY.The 2SC1623 (SOT-23), 2SC2412 (SOT-23), 2SC2412-Q (SOT-23), 2SC2712 (SOT-23), 2SC2712-Y (SOT-23), 2SC4116 (SOT-323), 2SC4116-Y (SOT-323), 2SC4738 (SOT-23), 2SC4738-Y (SOT-23), FJX945 (SOT-323), FJX945Y (SOT-323), KSC1623 (SOT-23), KTC3875 (SOT-23), KTC3875S (SOT-23), KTC3875S-Y (SOT-23), KTC3875Y (SOT-23), MMBT2484 (SOT-23) and TMBT3904 (SOT-23) is the SMD version of the KSC945CY transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the KSC945CY with the 2SC1318, 2SC1318-R, 2SC1384, 2SC1384-R, 2SC1627, 2SC1627-Y, 2SC1627A, 2SC1627A-Y, 2SC1815, 2SC1815Y, 2SC2002, 2SC2003, 2SC2274, 2SC2274K, 2SC2277, 2SC2458, 2SC2458-Y, 2SC2655, 2SC2655Y, 2SC2960, 2SC3114, 2SC3198, 2SC3198-Y, 2SC3199, 2SC3199-Y, 2SC3243, 2SC3244, 2SC3328, 2SC3328-Y, 2SC3330, 2SC3331, 2SC3382, 2SC3383, 2SC3708, 2SC3916, 2SC3917, 2SC3918, 2SC3919, 2SC3920, 2SC3921, 2SC3922, 2SC3923, 2SC3940A, 2SC3940A-R, 2SC4208A, 2SC4208A-R, 2SC4408, 2SD1207, 2SD1347, 2SD1835, 2SD438, 2SD667, 2SD789, 2SD863, C1815, C1815Y, C945, C945Y, H945, KSC1008C, KSC1008CY, KSC1815, KSC1815Y, KSC2331, KSC2331Y, KSP8098C, KSP8099C, KTC1006, KTC1008, KTC3198, KTC3198Y, KTC3199, KTC3199Y, KTC3209, KTC3209Y, KTC3227, KTC3227Y or KTD863.