2SC1953 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): 130 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 transistor can have a current gain of 130 to 330. The gain of the 2SC1953-R will be in the range from 130 to 220, for the 2SC1953-S it will be in the range from 185 to 330.Sometimes the "2S" prefix is not marked on the package - the 2SC1953 might only be marked "C1953".The complementary PNP transistor to the 2SC1953 is the 2SA914.You can replace the 2SC1953 with the 2SC1565, 2SC1565A, 2SC2258, 2SC2911, 2SC2912, 2SC3116, 2SC3117, 2SC3335, 2SC3787, 2SC3902, BD127, BD128, KSC2258 or KSC2258A.