Small Aircraft; Low Wing; 1 Eng; Retractable Gear
Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 4
Situational Awareness; Time Pressure
ATC Issue All Types; Inflight Event / Encounter CFTT / CFIT
Air Traffic Control Issued New Clearance; Air Traffic Control Issued Advisory / Alert
Procedure; Airspace Structure; Human Factors
Aircraft X was released off of the airport. I had to vector the aircraft and keep them at 2;000 ft. for longer than usual to be able to have an arrival go over the top on the ILS. Once Aircraft X was clear of the other IFR traffic I climbed them to 5;000 ft. I did this in what I believed was ample time to be able to comply with terrain avoidance rules. The aircraft did not climb as expected and entered a 3;900 ft. Minimum vectoring Altitude at 2;800 ft. I issued a low altitude alert to Aircraft X and had them expedite their climb through 4;000 ft.
Approach Controller reported they vectored a departing aircraft below the Minimum Vectoring Altitude.