.33 means a defect rate of 60 parts per million (PPM)
SMTnet Express, August 1, 2019, Subscribers: 32,197, Companies: 10,845, Users: 24,998 Tin Whiskers: Risks with Lead Free | Part I Credits: ACI Technologies, Inc. Tin (Sn) metal displays the characteristic of growing "tin whiskers" from pure tin
