H11A1

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H11A1: Single-Channel Phototransistor Optocoupler / Optoisolator, integrating a high-efficiency gallium arsenide (GaAs) infrared emitting diode optically coupled to an isolated sil icon NPN phototransistor receiver with an accessible base terminal link. Operating with a guaranteed minimum 50% Current Transfer Ratio (CTR) under a standard 10mA forward current, it delivers up to 5,300 \(\text{V}_{\text{RMS}}\) of continuous galvanic isolation safety, completely shunting dangerous ground-loop artifacts and protecting vulnerable low-power digital microprocessor logic buses from high-voltage line spikes, housed in an industry-standard 6-pin through-hole plastic dual in-line package (PDIP-6) layout. Show more