The V950ME21-LF from Z-COMM is a Voltage Controlled Oscillator with Frequency 4580 to 4700 MHz, Power 3.548 mW, Tuning Sensitivity 89 MHz/V, Tuning Voltage 0.5 to 5 V, Pulling 15 MHz. Tags: Surface Mount. More details for V950ME21-LF can be seen below.