MMBT3906 Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -40 V
• Collector-Base Voltage, max: -40 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -0.2 A
• Collector Dissipation: 0.35 W
• DC Current Gain (h_fe): 100 to 300
• Transition Frequency, min: 250 MHz
• Noise Figure, max: 4 dB
• 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 complementary NPN transistor to the MMBT3906 is the MMBT3904.You can replace the MMBT3906 with the 2SA1366, 2SA1518, 2SA1519, 2SA1520, 2SA1521, 2SB710A, BC807, BCW68, BCX17, FMMT2907, FMMT2907A, FMMT2907AR, FMMT2907R, FMMT3906, FMMT591, FMMT591Q, FMMTA55, FMMTA56, KN2907AS, KN2907S, KN3906S, KST2907A, KST3906, KST4403, KST55, KST56, KTN2907AS, KTN2907S, MMBT200, MMBT2907, MMBT2907A, MMBT3906L, MMBT3906LT1, MMBT3906LT1G, MMBT3906LT3, MMBT3906LT3G, MMBT4354, MMBT4355, MMBT4403, MMBTA55, MMBTA56, PMBT2907, PMBT2907A, PMBT3906, PMBT4403, PMBTA56, PMST2907, PMST2907A, SMBTA55 or SMBTA56.