Whether you are looking at jail time, and the amount, depends on whether you are being charged with felony or misdemeanor assaults. A misdemeanor assault has a maximum penalty of one year in jail. If you are being charged with strangulation, that would be a felony assault charge known as Assault in the Second Degree, a Class B Felony. Here is the link: http://apps.leg.wa.gov/rcw/default.aspx?cite=9A.36.021 .
In that case, the maximum penalty would be ten years in jail and a $20,000 fine. The actual penalty, if convicted, would be based upon your prior criminal history and the other current charges you are facing. Strangulation cases can be tough for the State to prove, so it is best to contact a criminal defense attorney at once.