2SC1953-S Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 150 V
• Collector-Base Voltage, max: 150 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 0.05 A
• Collector Dissipation: 1 W
• DC Current Gain (h_fe): 185 to 330
• Transition Frequency, min: 70 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 2SC1953-S transistor can have a current gain of 185 to 330. The gain of the 2SC1953 will be in the range from 130 to 330, for the 2SC1953-R it will be in the range from 130 to 220.Sometimes the "2S" prefix is not marked on the package - the 2SC1953-S might only be marked "C1953-S".The complementary PNP transistor to the 2SC1953-S is the 2SA914-S.You can replace the 2SC1953-S with the 2SC1565, 2SC1565-S, 2SC1565A, 2SC1565A-S, 2SC2258, 2SC2911, 2SC2912, 2SC3116, 2SC3117, 2SC3335, 2SC3787, 2SC3902, BD127, BD128, KSC2258 or KSC2258A.