The MMBT3906T-7-F from Diodes Incorporated is a PNP Small Signal Transistor. It has a collector-emitter breakdown voltage of over -40 V, a base-emitter voltage of up to -5 V, and a collector-emitter saturation voltage of less than -0.4 V. This transistor has a collector current of up to -200 A and a collector cutoff current of less than -50 nA. It provides a junction-to-ambient thermal resistance of up to 833°C/W. This RoHS-compliant transistor is available in a surface-mount package that measures 1.70 x 0.85 mm.