The H11A1SM is a single-channel DC input isolator manufactured by Fairchild/ON Semiconductor. It has a minimum DC Current Transfer Ratio of 50% at 10mA and an Isolation Voltage of 4170Vrms. The SMD (SMT) mounting technology and 6-SMD package make it easy to install. The H11A1SM has a Vce Saturation (Max) of 400mV and a maximum output voltage of 30V. This product is in active status, but the supply and demand status is limited. It comes in a tube/rail packaging with 1k pcs per package. The switching turn-on and turn-off time is 2μs, 2μs, and the forward voltage is 1.18V. The H11A1SM is a suitable choice for use in isolators.