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Both the HEDS-1200 and HEDS-1300 sensor are fully integrated modules designed for applications requiring optical reflective sensing. The modules contain an LED emitter (at the appropriate wavelengths) and a matched I.C. photodetector.
A bifurcated aspheric lens is used to image the active areas of the emitter and the detector to a single spot that defines the resolution of the sensor. The output signal is a current generated by the photodiode.
HEDS-1300 Maximum Ratings
Parameter
Symbol
HEDS-
Min.
Max.
Units
Fig.
Notes
Storage Temperature
Ts
1200
-40
+75
°C
1300
-40
+75
°C
Operating Temperature
TA
1200
-20
+70
°C
1300
-20
+70
°C
Lead Soldering Temperature 1.6 mm from Seating Plane
1200
260°C for 10 sec.
1
1300
1
Average LED Forward Current
If
1200
10
40
mA
3
1300
50
mA
2
Peak LED Forward Current
Ifpk
1200
40
mA
7
4
1300
75
mA
7
4
Reverse LED Input Voltage
Vr
1200
2.5
V
1300
5.0
V
Photodiode Bias (Id = 100 mA max)
Vd
1200
-0.3
20
V
5
1300
-0.3
20
V
5
HEDS-1300 Features
• Focused Emitter and Detector in a Single Package • TO5 Package • Binning of Sensors by Photocurrent (Ipr)
The HEDS-1500 is a fully integrated module designed for applications requiring optical reflective sensing. The module contains a 655 nm visible LED emitter and a matched I.C. photodetector.
A bifurcated aspheric lens is used to image the active areas of the emitter and the detector to a single spot 4.27 mm (0.168 in.) in front of the package. The output signal is a current generated by the photodiode.
HEDS-1500 Maximum Ratings
Parameter
Symbol
Min.
Max.
Units
Note
Operating Temperature
TA
-20
70
°C
Storage Temperature
TS
-40
75
°C
Lead Soldering Temperature
260 for 10 sec.
°C
1
Average LED Forward Current
If
50
mA
Peak LED Forward Current
Ifp
(data pending)
2
Reverse LED Input Voltage
Vr
5
V
Photodiode Bias (-V = forward bias)
Vd
-0.3
7
V
3
HEDS-1500 Features
• Focused Emitter and Detector in a Single Package • 655 nm Visible Emitter • 0.178 mm (0.007) Resolution • TO-5 Miniature Sealed Package • Photodiode Output
HEDS-1500 Typical Application
Applications for the HEDS-1500 include bar code scanning, pattern recognition and verification, object sizing, optical limit switching, tachometry, textile thread counting and defect detection, dimensional monitoring, line locating, paper edge detection, and any application where precision optical reflective sensing is desired.