Mourinho was sanctioned after Spurs were late to the kick-off in their 1-0 UEFA Europa League loss to Royal Antwerp on 30 October (AEDT).
The Spurs boss was found to be responsible for the late kick-off at Bosuilstadion in Antwerp last month, but the suspension has been "deferred for a probationary period of one year, starting from the date of the present decision".
Tottenham was also fined €25,000 ($40,700) for being responsible for the late kick-off, while the Premier League side was also fined €3,000 ($4,890) for violating the UEFA equipment regulations.
Spurs top Group J with six points in the UEFA Europa League after three matchdays, and sit ahead of Antwerp and LASK on goal difference.
They secured only their second win in their past 10 away UEFA Europa League matches after topping Ludogorets earlier this month.
Harry Kane also became the third player to score 200 goals for Tottenham in all competitions in the triumph, after Jimmy Greaves (266) and Bobby Smith (208).
Kane scored the winner in Tottenham's 1-0 victory at lowly West Bromwich Albion prior to the international break, with Spurs moving into second – only a point behind leader Leicester City after eight rounds.