LFUS - Littelfuse Inc. 2021 Q1 - Results - Earnings Call Presentation April, 28 2021 12:01 PM Littelfuse Inc. The following slide deck was published by Littelfuse, Inc. in conjunction with their 2021 Q1 earnings call. For further details see: Littelfuse, Inc. 2021 Q1 - Results - Earnings Call Presentation