The NTE3046 consists of a photo SCR coupled to a gallium arsenide infrared diode in a 6–Lead DIP type plastic package.
Full spec sheet:
https://www.nteinc.com/specs/3000to3099/pdf/nte3046.pdf
NTE3046 Optoisolator SCR Photothyristor Output 6 Pin DIP
SKU: NTE3046
$4.36Price