From memory. I'm wrong. 20% went to Republicans, not Trump: https://www.opensecrets.org/states/geog.php?cycle=2016&state...
Vote % is from the registrar of voters: http://results.enr.clarityelections.com/CA/Santa_Clara/64404... (from https://www.sccgov.org/sites/rov/Pages/Registrar-of-Voters.a...)