10 pcs : ECS-2200BX-040 - Standard Clock Oscillators ECS-2200X,OSC XO 4.000MHZ HCMOS TTL PC PIN, TTL,5V,+/-50ppm,0C 70C,-,Through Hole,0.520' L x 0.520' W (13.20mm x 13.20mm),Bulk
10 pcs : ECS-2200BX-040 - Standard Clock Oscillators ECS-2200X,OSC XO 4.000MHZ HCMOS TTL PC PIN, TTL,5V,+/-50ppm,0C 70C,-,Through Hole,0.520' L x 0.520' W (13.20mm x 13.20mm),Bulk