Optical Switches, Transmissive, with Phototransistor Output Trans Optical Sensor w/Phototrans Output
TCST5123: Optical Switches, Transmissive, with Phototransistor Output Trans Optical Sensor w/Phototrans Output
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Features: • Package type: Leaded• Detector type: Phototransistor• Dimensions:L 8...
· Gap 2.8 mm
· Package height: TCST5123: 4.0 mm
· Plastic polycarbonate housing
· Subminiature construction
· Snap-in mounting mechanisms
· Current Transfer Ratio (CTR) of typical 20%
` Position sensor for shaft encoder,
` Detection of opaque material such as paper, IBM cards, magnetic tapes etc.,
` Limit switch for mechanical motions in VCR,
` General purpose wherever the space is limited
Parameter |
Test Conditions |
Symbol |
Value |
Unit |
Reverse voltage |
VR |
6 |
V | |
Forward current |
IF |
60 |
mA | |
Forward surge current |
tp 10 s |
IFSM |
3 |
A |
Power dissipation |
Tamb 25 |
PV |
100 |
mW |
Junction temperature |
Tj |
100 |
These devices TCST5123 have a compact construction where the emitting-light sources and the detectors are located face-to-face on the same optical axis. The operating wavelength is 950 nm.
The detector consists of a phototransistor. Due to the special construction, the depth of the gap is equal to a package height of 4 mm.