DESCRIPTION
The QSD128 is a phototransistor encapsulated in an infrared transparent, black T-1 3/4 package.

FEATURES
• NPN Silicon Phototransistor
• Package Type: T-1 3/4
• Notched Emitter: QED12X/QED22X/QED23X
• Narrow Reception Angle: 24°C
• Daylight Filter
• Package Material and Color: Black Epoxy
• High Sensitivity