2SA1621-O Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -30 V
• Collector-Base Voltage, max: -35 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -0.8 A
• Collector Dissipation: 0.2 W
• DC Current Gain (h_fe): 100 to 200
• Transition Frequency, min: 120 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 2SA1621-O transistor can have a current gain of 100 to 200. The gain of the 2SA1621 will be in the range from 100 to 320, for the 2SA1621-Y it will be in the range from 160 to 320.The 2SA1621-O transistor is marked as "7O".The complementary NPN transistor to the 2SA1621-O is the 2SC4210-O.You can replace the 2SA1621-O with the BCW67, BCW67A, BCW68, BCW68F, FMMT549, FMMT591, FMMT591Q, KTA1298, KTA1298-O, KTC8550S, KTC8550S-C, MMBT2907, MMBT2907A, MMBT4354 or MMBT4355.