The CVCO55FLM-0137-0171 from Crystek Corporation is a Voltage Controlled Oscillator with Frequency 137 to 171 MHz, Power 1.995 mW, Tuning Sensitivity 15 MHz/V, Tuning Voltage 0.5 to 4.5 V, Pulling 1.5 to 3 MHz. Tags: Surface Mount. More details for CVCO55FLM-0137-0171 can be seen below.