HEDS-1300 HP [Agilent(Hewlett-Packard)], HEDS-1300 Datasheet - Page 2

• Manufacturer Part Number: HEDS-1300
• Description: Optical Reflective Sensors
• Manufacturer: HP [Agilent(Hewlett-Packard)]

Mechanical
Considerations
The HEDS-1200 and HEDS-1300
sensors are packaged in a high
profile 8 pin TO5 metal can with a
glass window. The emitter and
photodetector chips are mounted
on the header at the base of the
package. Positioned above these
active elements is a bifurcated
aspheric acrylic lens that focuses
them to the same point.
The sensors can be rigidly
secured by commercially available
TO5 style heat sinks, or 8 pin
0.200 inch diameter pin circle
sockets. These fixtures provide a
stable reference platform for
affixing the sensors to a circuit
board.
In applications requiring contact
scanning, protective focusing tips
are available. Focusing tips are
available in either metal (HBCS-
2999 or HBCS-4999) or
polycarbonate (HBCS-A998 or
HBCS-A999) packages using a
rugged sapphire ball as the
contact surface.
Electrical Operations
Both the HEDS-1200 and HEDS-
1300 sensors have the following
in common. The detector of the
sensor is a single photodiode. The
cathode of the emitter is physically
and electrically connected to the
case-substrate of the device.
Applications that require modula-
tion or switching of the LED
should be designed to have the
cathode connected to the electri-
cal ground of the system. Refer to
the Schematic and Connection
Diagrams that follow.
HEDS-1200 Optical System
HEDS-1300 Optical System
REFERENCE
REFERENCE
PLANE
PLANE
*NO CONNECTION TO BE MADE TO PIN 1 AND PIN 8
6
4
4
6
CASE, SUBSTRATE
LED
SCHEMATIC DIAGRAM
LED
SCHEMATIC DIAGRAM
PIN #
PIN #
REFLECTOR
REFLECTOR
2
3
4
6
2
3
4
6
PHOTODIODE ANODE
PHOTODIODE CATHODE
LED CATHODE, SUBSTRATE, CASE
LED ANODE
PHOTODIODE ANODE, SUBSTRATE, CASE
PHOTODIODE CATHODE
LED CATHODE, SUBSTRATE, CASE
LED ANODE
FUNCTION (HEDS-1300)
D
D
D
FUNCTION (HEDS-1200)
S
P
S
D
S
Z
3
2
Z
NOT SPECIFIED
TRANSISTOR
1*
8*
2
3
2
2
CONNECTION DIAGRAM
CONNECTION DIAGRAM
1*
D
D
1
3
3
P
P
D
TOP VIEW
D
TOP VIEW
S
S
8*
4
8
4
LED
LED
5
5
7
7
6
6
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