200V, 20A Super Low IR type Schottky Barrier Diode - RB218BM200 (New)

RB218BM200 is the 200V ultra-low IR SBD optimized for automotive applications including powertrains and xEVs. It offers ultra-low leakage current (IR) characteristics to achieve high withstand voltage of 200V. Replacing FRDs and rectifier diodes typically used in vehicle systems with ROHM's new SBDs make it possible to improve forward voltage (VF) characteristics significantly (11% lower than conventional FRDs). This reduces application power losses and allows smaller package designs by reducing heat generation, contributing to greater space savings.

About the RBxx8 series: SBDs featuring superior efficiency are expected to replace conventional rectifier diodes and FRDs in automotive power supply exposed to high temperature. However, one drawback of SBDs is degraded IR characteristics at higher operating temperatures that can lead to thermal runaway, requiring products that provide stable operation at higher temperatures. The RBxx8 series utilizes a barrier metal optimized for high temperature that significantly improves the IR characteristics (which is perhaps the most important challenge when using SBDs in automotive power supply). This ensures safe operation at high temperatures in automotive and industrial applications, eliminating the possibility of thermal runaway.

* This is a standard-grade product.
For Automotive usage, please contact Sales.

Application Note

What is a Thermal Model? (Diode)
 
Thermal models are models for performing simulations in relation to heat among SPICE models. Simulations using the thermal models are performed to make a rough estimate during the initial stage of thermal design. This application note explains the thermal models.
Part Explanation
 
For Diodes