Silicon Phototransistor T-1 3/4 Package
A silicon NPN phototransistor in a T-1 3/4 (5mm) plastic package designed to detect visible and near-IR light, converting photons into electrical current via the semiconductor base. It falls under HTS 8541.49.70 as a photosensitive semiconductor transistor used in light sensing applications like optical switches and encoders.
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More Specific Codes
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If not photosensitive, standard bipolar junction transistor
Lacks light sensitivity; functions as regular switching/amplification transistor without photovoltaic effect.
If configured as light-emitting rather than detecting
Emits light via electroluminescence (LED) instead of generating current from received light.
If mounted in hybrid integrated circuit module
When assembled with other circuit elements into a hybrid IC processor/memory rather than discrete device.
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Import Tips & Compliance
• Verify photosensitive functionality with test data; non-photosensitive transistors classify under 8541.21 or 8541.29
• Include detailed datasheets showing spectral response curves to confirm classification as photosensitive device
Related Products under HTS 8541.49.70
IR Phototransistor 940nm Peak Sensitivity
Infrared phototransistor optimized for 940nm wavelength detection, commonly used in remote control receivers and proximity sensors. Classified under HTS 8541.49.70 as a photosensitive semiconductor transistor that generates collector current proportional to incident IR light.
High-Speed Phototransistor Array 4-Channel
Four-channel silicon phototransistor array with 0.5 microsecond response time for position sensing and barcode readers. Falls under HTS 8541.49.70 as photosensitive semiconductor transistors designed for high-speed light detection applications.
Phototransistor TO-18 Metal Can Package
Hermetically sealed TO-18 metal can phototransistor for military/aerospace applications requiring high reliability and temperature stability (-65°C to +125°C). HTS 8541.49.70 covers this ruggedized photosensitive semiconductor transistor.
DARLINGTON Phototransistor Dual Element
High current gain darlington connected phototransistor pair providing 10,000+ gain for low light level detection in smoke detectors and medical instruments. Falls under HTS 8541.49.70 as photosensitive transistor configuration.
Fiber Optic Phototransistor Receiver
Phototransistor optimized for plastic optical fiber (POF) 650nm transmission used in industrial data links and sensor networks. HTS 8541.49.70 classification for photosensitive semiconductor devices in fiber optic applications.
Visible Light Slot Phototransistor
Gap-type phototransistor with 3mm slot for object detection in printers, vending machines, and paper currency validators. Classified under HTS 8541.49.70 as photosensitive semiconductor transistor for interrupt sensing.