N5172B/503 from Keysight Technologies at Allied Electronics & Automation

2N5172 NPN General Purpose Amplifier 2N5172 This device is designed for use as general purpose amplifiers and switches requiring collector currents to 300 mA. Sourced from Process 10. See PN100 for characteristics. Absolute Maximum Ratings* TA = 25°C unless otherwise noted The Keysight N5172B is a 9 kHz to 3GHz or 6 GHz test solution. Many options are available. Perform basic parametric testing of components and functional verification of receivers with industry-leading ACPR, EVM, and output power