The DCSR250-12 from Synergy Microwave Corporation is a Voltage Controlled Oscillator with Frequency 250 MHz, Power 5.012 mW, Tuning Sensitivity 1.5 to 2.0 MHz/V, Tuning Voltage 0.5 to 12 V, Pulling 0.25 MHz. Tags: Surface Mount. More details for DCSR250-12 can be seen below.