The BLT80,115 from NXP USA Inc. is a Radio Frequency NPN bipolar transistor rated 10 V, 250 mA, 900 MHz and 2 W, in a surface-mount SC-73 (SOT-223) package.
The BLT81,115 from NXP USA Inc. is a Radio Frequency NPN bipolar transistor rated 9.5 V, 500 mA, 900 MHz and 2 W, in a surface-mount SC-73 (SOT-223) package.