This document contains a SPICE model and test results for a Shindengen S3K60 general purpose rectifier diode. It includes: 1) The SPICE model parameters for the diode. 2) Graphs comparing simulated and measured forward and reverse characteristics including current, capacitance, and recovery time. 3) Circuit diagrams used to simulate the diode behavior and extract the parameters. The document provides a detailed SPICE model that was verified by comparing simulation results to manufacturer measurements for the Shindengen S3K60 rectifier diode.