Description
The H11AAX series consists of two gallium-arsenide infrared emitting diodes connected in inverse parallel driving a single silicon phototransistor output.

FEATUREs
■ Bi-polar emitter input
■ Built-in reverse polarity input protection
■ Underwriters Laboratory (UL) recognized – File #E90700
■ VDE approved – File #E94766 (ordering option ‘300’)

APPLICATIONs
■ AC line monitor
■ Unknown polarity DC sensor
■ Telephone line interface