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Pros & Cons
Pros
Fulfilled my needs. As advertised with no issues. Highly recommend product and vendor.
These are everlight pt334-6c photo transistors. They can be mounted in an enclosure using 5mm leds. They are sensitive to a wide range of wavelengths from infrared to ultraviolet.
Cons
These should be called infrared phototransistors.
Highlights
Quality
Easy to hook up, very sensitive to the red and infrared light i'm using, works very well with 5v laser diodes and retroreflective tape.
Overall these work well, mount cleanly, and have a wide range of sensitive wavelengths so these are great little sensors.
A photodiode generates a voltage even when not externally biased: if you just put the leads of a voltmeter on it and shine ligh... Read More
About 80k to 100k those will detect low light.
Packaging/appearance
Be aware: the collector(+) is the short lead, located on the notched side of the package.
Overview
- How are reviewers describing this item?
infrared, sensitive, great, needed and advertised. - Our engine has profiled the reviewer patterns and has determined that there is minimal deception involved.
- Our engine has determined that the review content quality is high and informative.
- Our engine has analyzed and discovered that 77.6% of the reviews are reliable.
- This product had a total of 118 reviews as of our last analysis date on Nov 5 2024.
Helpful InsightsBETA
Posted by a reviewer on Amazon
Sharp curve means linear apps are going to be a pita to get exactly right would require either some calibration mechanism or automated gain control in the linear circuitry
Posted by a reviewer on Amazon
Based on the information provided on the hiletgo description the photo transistors are pt3346c
Posted by a reviewer on Amazon
Google this number for the datasheet
Posted by a reviewer on Amazon
I see this phototransistor is rated to 1
Posted by a reviewer on Amazon
I make a voltage divider type circuit with these and a 10k resistor
Posted by a reviewer on Amazon
The second is that these are sensitive to a wide range of wavelengths from infrared to ultraviolet
Posted by a reviewer on Amazon
When using touch screens in the car the sun can hit at such an angle that it’s not really hitting the light sensor dead on but is casting at an angle on the screen and washing the picture out
Posted by a reviewer on Amazon
So i was hoping with the extra infrared light that the sun puts out compared to indoor lighting that the arduino could overcompensate and increase the brightness
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