C945Y 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: 0.4 W
• DC Current Gain (h_fe): 120 to 240
• Transition Frequency, min: 150 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-92

The C945Y 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.
Here is an image showing the pin diagram of this transistor.The C945Y transistor can have a current gain of 120 to 240. The gain of the C945 will be in the range from 70 to 700, for the C945BL it will be in the range from 350 to 700, for the C945GR it will be in the range from 200 to 400, for the C945O it will be in the range from 70 to 140.The complementary PNP transistor to the C945Y is the A733Q.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 C945Y transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the C945Y 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, H945, KSC1008C, KSC1008CY, KSC1815, KSC1815Y, KSC2331, KSC2331Y, KSC945C, KSC945CY, KSP8098C, KSP8099C, KTC1006, KTC1008, KTC3198, KTC3198Y, KTC3199, KTC3199Y, KTC3209, KTC3209Y, KTC3227, KTC3227Y or KTD863.