1. Core Technology: The SBR20A100CTE employs Super Barrier Rectifier (SBR) technology, which is essentially a low‑VF Schottky variant optimized using MOS‑channel principles. The NTSB20U100CT‑1G uses conventional Schottky technology. SBR technology generally achieves a better balance between lower forward voltage drop (VF) and softer reverse recovery characteristics. 2. Reverse Leakage Current (IR): At 100 V and 25 °C, the SBR device specifies 100 µA leakage, whereas the Schottky device specifies 800 µA—an eight‑fold difference. Under high‑temperature, high‑reverse‑voltage conditions, the NTSB20U100CT‑1G will exhibit significantly higher static power dissipation and temperature rise, potentially impacting system efficiency and thermal design margin. 3. Maximum Junction Temperature (Tjmax): The SBR device is rated for 175 °C, while the Schottky device is rated for 150 °C. The SBR offers greater thermal design headroom and reliability margin, making it more suitable for high‑ambient‑temperature or thermally constrained environments. 4. Dynamic Performance Specification: The NTSB20U100CT‑1G is specified as “Fast Recovery” (≤500 ns), whereas the SBR20A100CTE is listed as “Standard Recovery” (>500 ns). This can be misleading, as SBR operation relies on majority‑carrier conduction; its actual reverse recovery charge (Qrr) and softness factor are often superior to those of conventional PN fast‑recovery diodes, potentially resulting in lower switching losses. Detailed Qrr and Trr comparison curves should be consulted to assess true dynamic performance.