Descriptions
The dip type ITR20904 consists of an infrared emitting diode and an silicon phototransistor, encased side-by-side on converging optical axis in a black housing. The phototransistor receives radiation from the IR only. This is the normal situation. But when a reflecting object close to ITR, phototransistor receives the reflecting radiation and the different distance have different light current.

FEATUREs
• Side-looking package
• Fast response time
• Miniature and thin
• High sensitivity
• Cut-off visible wavelength

APPLICATIONs
• Printer
• Switch Scanner
• Non-contact Switching