This is one piece of New RFMD/Sirenza/Vari-L VCO, 1540MHZ to 1605MHZ, Part Number: VCO190-1572T in T Package (0.5"x0.5"x0.156"). 

General Spec:

• Frequency Range: 1540MHz to 1605MHz;
• Phase Noise: -106dBc/HZ at 10KHz offset;
• Tuning Voltage: 1V to 3.9V;
• Tuning Sensitivity: 34MHz (avg);
• Output Power: 0dBm;
• Load Impedance: 50 Ohms;
• Load Capacitance: 100pF max.;
• Pushing: < 0.2MHz/V;
• Pulling: < 0.2MHz (12dB return Loss);
• Operating Temp: -10C to +85C;
• Supply Voltage: 5V/23mA;
• Package: T (0.5"x0.5"x0.156");

Data Sheet:

http://www.rfbayinc.com/upload/files/data_sheet/vco/vco190-1572t.pdf

T Package:

http://rfbayinc.com/upload/files/data_sheet/vco/t_package.pdf