2SD438-D Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 80 V
• Collector-Base Voltage, max: 100 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 0.7 A
• Collector Dissipation: 0.9 W
• DC Current Gain (h_fe): 60 to 120
• Transition Frequency, min: 100 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-92MOD

Here is an image showing the pin diagram of this transistor.The 2SD438-D transistor can have a current gain of 60 to 120. The gain of the 2SD438 will be in the range from 60 to 560, for the 2SD438-E it will be in the range from 100 to 200, for the 2SD438-F it will be in the range from 160 to 320, for the 2SD438-G it will be in the range from 280 to 560.Sometimes the "2S" prefix is not marked on the package - the 2SD438-D might only be marked "D438-D".The complementary PNP transistor to the 2SD438-D is the 2SB560-D.The 2SC3438 (SOT-89) and 2SC3438-C (SOT-89) is the SMD version of the 2SD438-D transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the 2SD438-D with the 2SC2383, 2SC2383R, 2SC3228, 2SC3228-R, 2SD667, 2SD667A, 2SD667AB, 2SD667B, KSC1009C, KSC2383, KSC2383R, KTC3228 or KTC3228R.