2SD601A-Q Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 50 V
• Collector-Base Voltage, max: 60 V
• Emitter-Base Voltage, max: 7 V
• Collector Current − Continuous, max: 0.1 A
• Collector Dissipation: 0.2 W
• DC Current Gain (h_fe): 160 to 260
• Transition Frequency, min: 150 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: SOT-23

Here is an image showing the pin diagram of this transistor.The 2SD601A-Q transistor can have a current gain of 160 to 260. The gain of the 2SD601A will be in the range from 160 to 460, for the 2SD601A-R it will be in the range from 210 to 340, for the 2SD601A-S it will be in the range from 290 to 460.Sometimes the "2S" prefix is not marked on the package - the 2SD601A-Q might only be marked "D601A-Q".The complementary PNP transistor to the 2SD601A-Q is the 2SB709A-Q.You can replace the 2SD601A-Q with the 2SC1623, 2SC1623-L5, 2SC2412, 2SC2412-Q, 2SC2712, 2SC3441, 2SC3441-E, 2SC3912, 2SC3913, 2SC3914, 2SC3915, 2SC4738, 2SD602A, BC846, FMMT491, FMMT491Q, FMMT619, FMMT620, FMMTA05, FMMTA06, KSC1623, KSC1623-Y, KST05, KST06, KTC3875, KTC3875S, MMBT2484, MMBTA05, MMBTA06, PMBTA06, SMBTA05, SMBTA06 or TMBT3904.