1.1.5KE100A/TR13 Substitution Conclusion Based on a detailed comparative analysis, the 1.5KE100A/TR13 from YAGEO is a fully viable substitute for the original Comchip Technology part, 1.5KE100A-HF. The core electrical parameters are highly consistent, including reverse standoff voltage (85.5V), minimum breakdown voltage (95V), maximum clamping voltage (137V), and peak pulse power (1500W). Both devices also share the same DO-201AA axial package, ensuring complete physical and electrical compatibility. The only notable difference lies in the peak pulse current: the original part is rated at 10.95A, while the new part is slightly higher at 11.1A. This indicates the substitute can handle marginally higher transient currents at the same clamping voltage, offering a slight improvement in overvoltage protection capability. This minor deviation does not negatively impact circuit performance in typical applications and may contribute to enhanced reliability. Therefore, the substitution is feasible with no anticipated degradation in functionality or safety.