2SC1844P Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 60 V
• Collector-Base Voltage, max: 60 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 0.1 A
• Collector Dissipation: 0.5 W
• DC Current Gain (h_fe): 200 to 400
• Transition Frequency, min: 100 MHz
• Operating and Storage Junction Temperature Range: -55 to +125 °C
• Package: TO-92

The 2SC1844P 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 2SC1844P transistor can have a current gain of 200 to 400. The gain of the 2SC1844 will be in the range from 200 to 800, for the 2SC1844E it will be in the range from 400 to 800, for the 2SC1844F it will be in the range from 300 to 600.Sometimes the "2S" prefix is not marked on the package - the 2SC1844P might only be marked "C1844P".The complementary PNP transistor to the 2SC1844P is the 2SA991P.The MMBT2484 (SOT-23) is the SMD version of the 2SC1844P transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the 2SC1844P with the 2SC2002, 2SC2002-K, 2SC2003, 2SC2003-K, 2SC2240, 2SC2240-GR, 2SC2459, 2SC2459-GR, 2SC3200, 2SC3200-GR, 2SC3201, 2SC3201-GR, 2SC3245, 2SC3329, 2SC3329-GR, 2SC3708, 2SC3708-T, 2SC6043, 2SD1616A, 2SD1616A-K, 2SD438, KSC1008C, KSC1008CG, KSD1616A, KSD1616A-G, KTC1006, KTC3200 or KTC3200GR.