SMA4120 Overview
The SMA4120 is a single-pole, single-throw, normally open multipurpose solid state relay. The circuit is posed of an infra-red LED on the input side optically coupled to a Photo Diode Array which drives back-to-back high voltage enhancement type DMOS transistors on the output. The SMA4120 has a high blocking voltage (600V) and is rated for a continuous load current of 0.5A.
SMA4120 Key Features
- High Blocking Voltage (600V MIN)
- High Load Current (0.5A MAX Continuous)
- Low Input Control Current (3mA TYP)
- Low On Resistance (4Ω TYP)
- High Input-to-Output Isolation (4kV)
- Long Life / High Reliability
- RoHS / Pb-Free / REACH pliant