www.DataSheet4U.com FPIR32 MPIR40 KPIR50 MINIBRIDGE FAST RECOVERY, 32, 40 and 50 AMPERES INTEGRALLY MOLDED HEAT SINKS PROVIDE VERY LOW THERMAL RESISTANCE This mark indicates recognition under the component program of Underwriters Laboratories, inc. Our unique case construction enables the closer molding of integrated heat sink to the active components for a superior thermal transfer and lower junction temperatures. SERIES FPIR SERIES MPIR SERIES 50V 100V 200V FPIR 3220 MPIR 4020 KPIR 5020 4.