2SC3955-C Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 200 V
• Collector-Base Voltage, max: 200 V
• Emitter-Base Voltage, max: 3 V
• Collector Current − Continuous, max: 0.1 A
• Collector Dissipation: 7 W
• DC Current Gain (h_fe): 40 to 80
• Transition Frequency, min: 300 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-126F

Here is an image showing the pin diagram of this transistor.The 2SC3955-C transistor can have a current gain of 40 to 80. The gain of the 2SC3955 will be in the range from 40 to 320, for the 2SC3955-D it will be in the range from 60 to 120, for the 2SC3955-E it will be in the range from 100 to 200, for the 2SC3955-F it will be in the range from 160 to 320.Sometimes the "2S" prefix is not marked on the package - the 2SC3955-C might only be marked "C3955-C".The complementary PNP transistor to the 2SC3955-C is the 2SA1540-C.You can replace the 2SC3955-C with the 2N5655, 2N5655G, 2N5656, 2N5656G, 2N5657, 2N5657G, 2SC2258, 2SC2688, 2SC2688-N, 2SC2752, 2SC2752K, 2SC2899, 2SC3416, 2SC3416-C, 2SC3417, 2SC3417-C, 2SC3502, 2SC3502-C, 2SC3503, 2SC3503-C, 2SC3600, 2SC3600-C, 2SC3601, 2SC3601-C, 2SC3788, 2SC3788-C, 2SC3789, 2SC3789-C, 2SC3790, 2SC3790-C, 2SC3956, 2SC3956-C, 2SC4212, BD127, BD128, BD129, BD157, BD158, BD159, BD410, KSC2258, KSC2258A, KSC2688, KSC2688-R, KSC2752, KSC2752Y, KSC3502, KSC3502-C, KSC3503, KSC3503-C, KSE340, MJE340, MJE340G, MJE3439, MJE3439G, MJE344 or MJE344G.