HS945-O 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): 70 to 140
• Transition Frequency, min: 300 MHz
• Noise Figure, max: 4 dB
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-92
• Electrically Similar to the Popular 2SC945R transistor

The HS945-O 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, base, and collector leads. Suffix "C" means center collector in H945-R.
Here is an image showing the pin diagram of this transistor.The HS945-O transistor can have a current gain of 70 to 140. The gain of the HS945 will be in the range from 70 to 700, for the HS945-BL it will be in the range from 350 to 700, for the HS945-GR it will be in the range from 200 to 400, for the HS945-Y it will be in the range from 120 to 240.The complementary PNP transistor to the HS945-O is the HS733-O.The 2SC2712 (SOT-23), 2SC2712-O (SOT-23), 2SC4116 (SOT-323), 2SC4116-O (SOT-323), 2SC4738 (SOT-23), 2SC4738-O (SOT-23), FJX945 (SOT-323), FJX945O (SOT-323), KTC3875 (SOT-23), KTC3875O (SOT-23), KTC3875S (SOT-23) and KTC3875S-O (SOT-23) is the SMD version of the HS945-O transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.The 2SC945R is the TO-92 version of the HS945-O.You can replace the HS945-O with the 2SC1008, 2SC1008O, 2SC1211, BC537, BC537-10, BC538, BC538-10, KSC1008, KSC1008O, KSC945, KSC945O, KSP05, KSP06, KTC9014, KTC9014A, MPS6717, MPS6717G, MPSW05, MPSW05G, MPSW06, MPSW06G, ZTX451, ZTX452 or ZTX453.