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Vishay Telefunken |
TCST5123
Vishay Telefunken
Transmissive Optical Sensor with Phototransistor
Output
Description
These devices 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.
Applications
D Position sensor for shaft encoder,
D Detection of opaque material such as paper,
IBM cards, magnetic tapes etc.,
D Limit switch for mechanical motions in VCR,
D General purpose – wherever the space is limited
96 12253
Features
D Gap 2.8 mm
D Package height: TCST5123: 4.0 mm
D Plastic polycarbonate housing
D Subminiature construction
D Snap-in mounting mechanisms
D Current Transfer Ratio (CTR) of typical 20%
96 11968
CC
EA
Top view
Order Instruction
Ordering Code
TCST5123
Resolution (mm) / Aperture (mm)
0.6 / non
Remarks
Snap-in construction
Document Number 83766
Rev. A3, 08–Jun–99
www.vishay.com
1 (7)
TCST5123
Vishay Telefunken
Absolute Maximum Ratings
Input (Emitter)
Parameter
Reverse voltage
Forward current
Forward surge current
Power dissipation
Junction temperature
Test Conditions
tp ≤ 10 ms
Tamb ≤ 25°C
Symbol
VR
IF
IFSM
PV
Tj
Value
6
60
3
100
100
Unit
V
mA
A
mW
°C
Output (Detector)
Parameter
Collector emitter voltage
Emitter collector voltage
Collector current
Power dissipation
Junction temperature
Test Conditions
Tamb ≤ 25°C
Symbol
VCEO
VECO
IC
PV
Tj
Value
70
7
100
150
100
Unit
V
V
mA
mW
°C
Coupler
Parameter
Total power dissipation
Operation temperature range
Storage temperature range
Soldering temperature
Test Conditions
Tamb ≤ 25°C
t ≤ 3 s distance 1.5 mm from case
Symbol
Ptot
Tamb
Tstg
Tsd
Value
250
–25 to +85
–55 to +100
260
Unit
mW
°C
°C
°C
Electrical Characteristics (Tamb = 25°C)
Input (Emitter)
Parameter
Forward voltage
Junction capacitance
Test Conditions
IF = 60 mA
VR = 0, f = 1 MHz
Symbol Min. Typ. Max. Unit
VF
1.25 1.5
V
Cj 50 pF
Output (Detector)
Parameter
Collector emitter voltage
Emitter collector voltage
Collector dark current
Test Conditions
IC = 1 mA
IE = 100 mA
VCE = 25 V, IF = 0, E = 0
Symbol
VCEO
VECO
ICEO
Min.
70
7
Typ. Max. Unit
V
V
100 nA
Coupler
Parameter
Test Conditions
Symbol Min. Typ. Max. Unit
Collector current 1)
Crosstalk 2)
VCE = 5 V, IF = 20 mA
VCE = 5 V, IF = 20 mA
IC 2.4 4.0
ICX 50
mA
mA
Collector emitter satu-
ration voltage
IF = 20 mA, IC = 0.025 mA VCEsat
0.4 V
1) Without shield
2) With shield, see mechanical setup
www.vishay.com
2 (7)
Document Number 83766
Rev. A3, 08–Jun–99
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