This document describes the features and characteristics of the BSO4420 OptiMOS small-signal transistor, including N-channel, logic level, very low on-resistance RDS(on), excellent gate charge x RDS(on) product (FOM), avalanche and dv/dt rating. The transistor is ideal for fast switching applications.
The BSO4420 is an N‑channel, logic‑level OptiMOS small‑signal transistor designed for fast‑switching applications. It features very low on‑resistance, excellent gate charge performance, and is avalanche‑rated.
The document provides detailed electrical, thermal, and dynamic characteristics, including maximum ratings, capacitances, gate charge data, and safe operating area curves, along with packaging and ordering information.