Summary
General Purpose, Low Noise NPN Silicon Bipolar Transistor
Description
Hewlett-Packard’s AT-41511 and AT-41533 are general purpose NPN bipolar transistors that offer excellent high frequency performance at an economical price. The AT-41533 uses the 3␣ lead SOT-23, while the AT-41511 places the same die in the lower parasitic 4 lead SOT-143. Both packages are industry standard, and compatible with high volume surface mount assembly techniques.
Source title
AT-41533 Datasheet(PDF) - Agilent(Hewlett-Packard)