2SA624-D Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -40 V
• Collector-Base Voltage, max: -50 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -1.5 A
• Collector Dissipation: 7 W
• DC Current Gain (h_fe): 90 to 180
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-202

Here is an image showing the pin diagram of this transistor.The 2SA624-D transistor can have a current gain of 90 to 180. The gain of the 2SA624 will be in the range from 55 to 300, for the 2SA624-C it will be in the range from 55 to 110, for the 2SA624-E it will be in the range from 150 to 300.Sometimes the "2S" prefix is not marked on the package - the 2SA624-D might only be marked "A624-D".The complementary NPN transistor to the 2SA624-D is the 2SC1014-D.The 2SB766A (SOT-89) and 2SB766A-Q (SOT-89) is the SMD version of the 2SA624-D transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the 2SA624-D with the 2SA636, 2SA636A, 2SA699A or 2SA887.