Light Transport
Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 6
Situational Awareness; Fatigue
ATC Issue All Types; Conflict Airborne Conflict; Inflight Event / Encounter CFTT / CFIT
Air Traffic Control Separated Traffic; Air Traffic Control Issued New Clearance
Human Factors; Procedure; Airspace Structure
Aircraft Y was executing a missed approach when I had cleared Aircraft X. I underestimated the distance and climb out of the missed approach. When I noticed the missed approach would not be 1;000 feet above Aircraft X; I canceled Aircraft X approach clearance; turned him to the south and climbed him to 3;000 feet. I knew the EOVM (Emergency Obstruction Video Map) in that area was 1;900 feet so I felt comfortable turning him to avoid the missed approach. I decided; better to turn away into lower MVA (Minimum Vectoring Altitude) then continue the two aircraft into a greater conflict.I should have allowed more space for arrivals when there is a missed approach in progress. Also get more sleep. I slept for 2 hours last night due to many circumstances beyond my control. Out of fear of reprisal; I did not call in fatigued.
SBA TRACON Controller reported having to turn an aircraft below the Minimum Vectoring Altitude to avoid a traffic conflict.