2SD1610 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 200 V
• Collector-Base Voltage, max: 200 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 0.1 A
• Collector Dissipation: 1.25 W
• DC Current Gain (h_fe): 60 to 320
• Transition Frequency, min: 140 MHz
• Operating and Storage Junction Temperature Range: -50 to +150 °C
• Package: TO-126

Here is an image showing the pin diagram of this transistor.The 2SD1610 transistor can have a current gain of 60 to 320. The gain of the 2SD1610-B will be in the range from 60 to 120, for the 2SD1610-C it will be in the range from 100 to 200, for the 2SD1610-D it will be in the range from 160 to 320.Sometimes the "2S" prefix is not marked on the package - the 2SD1610 might only be marked "D1610".The complementary PNP transistor to the 2SD1610 is the 2SB1110.The BF622 (SOT-89) and BF822 (SOT-23) is the SMD version of the 2SD1610 transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the 2SD1610 with the 2SC2258, 2SC2899, 2SC3416, 2SC3417, 2SC3502, 2SC3503, 2SC3600, 2SC3601, 2SC3788, 2SC3789, 2SC3790, 2SC3955, 2SC3956, BD127, BD128, BD129, BUX86, KSC2258, KSC2258A, KSC3502 or KSC3503.