OPIA804 [TTELEC]
DIP Package;OPIA800—OPIA803, OPID804
DIP Package
Features:
•
•
•
•
2,500 or 5,000 Vrms electrical isolation
Choice of a Single and Dual LED
Choice of Phototransistor or Photologic® Sensor
Low-cost plastic Dual-In-Line (DIP) package
Agency Approvals:
•
•
UL Certification No: E58730
VDE NO: 40026713, 40026624
Description:
The OPIA800 through OPID804 optocouplers are designed for applications that utilize a digital output
(Phototlogic®) in a dual-in-line package. Isolation voltage from 2,500 to 5,000 Volts RMS product are designed for
some of the most stringent power system isolation requirements.
Theory of operation: The LED transmitter is used to illuminate the Photosensor providing electrical isolation
between two power systems while maintaining the ability to transmit information from one power system to the
other. In many applications, analog or digital signals may be required to be transmitted between two power
systems while maintaining isolation between the power systems up to 5,000 volts RMS. A variety of LED and
photosensor configurations are available depending on the system requirements
The ratio Current Transfer Ratio (CTR) is determined using the output current and input current for analog
photosensors. CTR ratios can range from as low as 5 to over 9,000 depending on the device.
Photosensor − Current 20mA
CTR =
=
*100 = 200
LED − Current
10mA
All DIP product is shipped in a shipping tube with “TU” identified on the end of the part number.
Example: OPIA800DTU is a 8-Pin DIP shipped in a tube (TU).
• Industrial equipment power isolation
• Medical equipment power isolation
• Office equipment
Applications:
• High voltage isolation
• PCBoard power system isolation
1
Moisture
RoHS
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006
Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com
Issue A.5 02/2010
Page 1 of 20
OPIA800—OPIA803, OPID804
DIP Package
Analog Output Devices Ordering Information
Isolation Voltage
Max. (Vrms)
CTR
Min/Typ/Max
Typ. Tplh / Tphl (ns)
[RL = ohms]
Part Number
Package
Configuration
OPIA800
OPIA801
OPIA802
2,500
2,500
2,500
300 / 1,600 / -
500 / 1,600 / -
15 / 43 / -
7 / 2 [ 2.2 K]
10 / 5 [ 4.7 K]
0.3 / 0.3 [ 1.9 K]
8 Pin DIP
8 Pin DIP
8 Pin DIP
A K—K A B C E (Dar)
A K—K A B C E (Dar)
A K—K A C E
OPIA803
2,500
5 / 43 / -
0.4 / 0.3 [ 4.1 K]
8 Pin DIP
A K—K A C E
Digital Output Devices Ordering Information
Isolation Voltage
Max. (Vrms)
Typ. Tr / Tf (ns)
[RL = 350 ohms]
30 / 30
Typ. Tplh / Tphl (ns)
[RL = ohms]
Part Number
Package
Configuration
OPID804
5,000
45 / 45 [ 350]
8 Pin DIP
A K—NAND
Configuration: Definition of Terms
LED Identification—Sensor Identification
K = Cathode
LED
A = Anode
10K Logic
K = Cathode
10K Inverted Logic
A = Anode
NAND Gate
B = Base
NAND Gate
C = Collector
Sensor
E = Emitter
Packaging
Example: OPID606DTR
Part Number Suffix: D = DIP, TU = Ship in Tubes, TR = Ship on Tape and Reel
Pin #
Part Number
1
2
A
A
A
A
A
3
K
K
K
K
K
4
5
E
6
7
C-B
8
OPIA800
OPIA801
OPIA802
OPIA803
OPID804
C
C
K-C
K-C
K
E
C-B
E
C
A-B
E
C
A-B
K
GND
Output
Enable
Vcc
Package Outline Dimensions and Schematics: Top-View
Symbol
Definition
A
B
C
E
K
Anode
Base
DIMENSIONS ARE IN: INCHES [MILLIMETERS]
TOLERANCE: ± 0.008 INCHES
[± 0.2 MILLIMETERS]
Collector
Emitter
Cathode
OPIA802
OPIA803
OPID804
OPIA800
OPIA801
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
Issue A.5 02/2010
Page 2 of 20
OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006
Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com
OPIA800—OPIA803, OPID804
DIP Package
Absolute Maximum Ratings (TA = 25o C unless otherwise noted)
Storage Temperature
-55° C to +125° C
Operating Temperature
OPIA800
OPIA801
OPIA802
OPIA803
-40° C to +115° C
0° C to +125 ° C
-55° C to +115° C
-55° C to +100° C
0° C to +85° C
OPID804
Isolation voltage (1 minute)
OPID804
OPIA800, OPIA801, OPIA802, OPIA803
5,000 Vrms
2,500 Vrms
Lead Soldering Temperature (1/16” (1.6 mm) from case for 5 seconds with soldering iron)
260° C
Input Diode
Continuous Forward Current
OPIA802, OPIA803, OPID804
OPIA800 OPIA801
25 mA
20 mA
Peak Forward current (1 µs pulse width, 300 pps)
OPIA800, OPIA801, OPIA802, OPIA803
OPID804
1 A
40 mA
Reverse Voltage
OPIA800, OPIA801, OPIA802, OPIA803, OPID804
5 V
Power Dissipation
OPIA802, OPIA803, OPID804
OPIA800, OPIA801
45 mW
35 mW
Absolute Maximum Ratings (TA = 0° C to 70° C unless otherwise specified)
Output IC
Vcc—Collector-Emitter Voltage
OPIA800
OPIA801
-0.5 V to +7 V
-0.5 V to +18 V
-0.5 V to +15 V
OPIA802, OPIA803
Collector Current
OPIA802, OPIA803
OPIA800, OPIA801
8 mA
60 mA
Power Dissipation
OPIA800, OPIA801, OPIA802, OPIA803
100 mW
Output NAND Gate—OPID804
Vcc—Supply voltage
7 V
5.5 V
Enable voltage
High Level Output voltage
Low Level Output current
Output Collector Power Dissipation
7 V
50 mA
85 mW
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006
Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com
Issue A.5 02/2010
Page 3 of 20
OPIA800—OPIA803, OPID804
DIP Package
Electrical Characteristics: OPIA800
*6 Current transfer ratio is a ratio of input current and output current expressed in %.
*7 Measured as 2-pin element (Short 1,2,3,4 and 5,6,7,8)
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
Issue A.5 02/2010
Page 4 of 20
OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006
Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com
OPIA800—OPIA803, OPID804
DIP Package
Switching Characteristics: OPIA800
*9 Instantaneous common mode rejection voltage “output(1)” represents a common voltage variation that can hold the output
above (1) level (Vo>2.0V).
*10 Instantaneous common mode rejection voltage “output(1)” represents a common voltage variation that can hold the output
above (0) level (Vo>0.8V).
*8 Test Circuit Propagation Delay Time
*10 Test Circuit for Instantaneous Common Mode Rejection Voltage
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006
Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com
Issue A.5 02/2010
Page 5 of 20
OPIA800—OPIA803, OPID804
DIP Package
OPIA800
Characteristic Curves
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
Issue A.5 02/2010
Page 6 of 20
OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006
Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com
OPIA800—OPIA803, OPID804
DIP Package
OPIA800
Characteristic Curves
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006
Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com
Issue A.5 02/2010
Page 7 of 20
OPIA800—OPIA803, OPID804
DIP Package
(TA = 25°C)
Electrical Characteristics: OPIA801
*6 Current transfer ratio is a ratio of input current and output current expressed in %.
*7 Measured as 2-pin element (Short 1,2,3,4 and 5,6,7,8)
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
Issue A.5 02/2010
Page 8 of 20
OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006
Phone: (972) 323-2200 or (800) 341-4747
FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com
OPIA800—OPIA803, OPID804
DIP Package
Switching Characteristics: OPIA801
*9 Instantaneous common mode rejection voltage “output(1)” represents a common voltage variation that can hold the output
above (1) level (Vo>2.0V).
*10 Instantaneous common mode rejection voltage “output(1)” represents a common voltage variation that can hold the output
above (0) level (Vo>0.8V).
*8 Test Circuit Propagation Delay Time
*10 Test Circuit for Instantaneous Common Mode Rejection Voltage
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006
Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com
Issue A.5 02/2010
Page 9 of 20
OPIA800—OPIA803, OPID804
DIP Package
(TA = 0 to +70°C unless otherwise specified)
Electrical Characteristics: OPIA802
*5 Current transfer ratio is a ratio of input current and output current expressed in %.
*6 Io = 2.4mA
*7 Measured as 2-pin element (Short 1,2,3,4 and 5,6,7,8)
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
Issue A.5 02/2010
Page 10 of 20
OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006
Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com
OPIA800—OPIA803, OPID804
DIP Package
Switching Characteristics: OPIA802
(TA = 25°C, VCC=5V, IF=16mA)
*8 RL = 1.9k ohms is equivalent to on LSTTL and 5.6k ohm pull-up resistor.
*9 Instantaneous common mode rejection voltage “output(1)” represents a common voltage variation that can hold the output
above (1) level (Vo>2.0V).
*10 Instantaneous common mode rejection voltage “output(1)” represents a common voltage variation that can hold the output
above (0) level (Vo>0.8V).
*11 Bandwidth represents a point where AC input goes down by 3dB.
*9 Test Circuit Propagation Delay Time
*11 Test Circuit for Instantaneous Common Mode Rejection Voltage
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006
Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com
Issue A.5 02/2010
Page 11 of 20
OPIA800—OPIA803, OPID804
DIP Package
(TA = 0 to +70°C unless otherwise specified)
Electrical Characteristics: OPIA803
*5 Current transfer ratio is a ratio of input current and output current expressed in %.
*6 Io = 1.1mA
*7 Measured as 2-pin element (Short 1,2,3,4 and 5,6,7,8)
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
Issue A.5 02/2010
Page 12 of 20
OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006
Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com
OPIA800—OPIA803, OPID804
DIP Package
(TA = 25°C, VCC=5V, IF=16mA)
Switching Characteristics: OPIA803
*8 RL = 4.1k ohms is equivalent to on LSTTL and 6.1k ohm pull-up resistor.
*9 Instantaneous common mode rejection voltage “output(1)” represents a common voltage variation that can hold the output
above (1) level (Vo>2.0V).
*10 Instantaneous common mode rejection voltage “output(1)” represents a common voltage variation that can hold the output
above (0) level (Vo>0.8V).
*11 Bandwidth represents a point where AC input goes down by 3dB.
*9 Test Circuit Propagation Delay Time
*11 Test Circuit for Instantaneous Common Mode Rejection Voltage
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006
Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com
Issue A.5 02/2010
Page 13 of 20
OPIA800—OPIA803, OPID804
DIP Package
(TA = 0 to +70°C unless otherwise specified)
TYP MAX UNITS TEST CONDITIONS
Electrical Characteristics: OPID804
SYMBOL
Input Diode
VF
PARAMETER
MIN
Forward Voltage (*4)
-
5
-
1.6
-
1.8
V
V
IF = 10 mA, TA = 25° C
BVR
Reverse Breakdown Voltage
Input Capacitance
-
-
IR = 10 µA, TA = 25° C
VF = 0.0 V, f = 1M Hz
CIN
60
pf
Output Photologic
IOL = 13 mA, VCC = 5.5 V, IF = 5 mA,
VEH=2V
VOL Low Level Output Voltage
-
-
0.4
2
0.6
V
IOH
High Level Output Current
250
µA
VCC=5.5 V, VO=5.5 V, VE=2.0 V, IF=250
µA
IEH
IEL
ICCL
ICCH
High Level Enable Current
Low Level Enable Current
Low Level Output Current
High Level Output Current
-
-0.8
-1.2
13
-
mA
mA
mA
mA
VCC = 5.5 V, VE = 2.0 V
VCC = 5.5 V, VE = 2.0 V
VCC = 5.5 V, VE = 0.5 V, IF = 10 mA
VCC = 5.5 V, VE = 0.5 V, IF = 0 mA
-2.0
-
-
-
18
15
7
VI-O = 3,000 V, TA = 25° C, t = 5 s,
RH = 45%
II-O
tEHL
tELH
Leakage Current
-
-
-
1.0
mA
Enable Propagation delay “High to
Low” (*8)
15
40
-
-
VEH = 3.0 V, VEL = 0.5 V, RL = 350 Ω ,
IF = 7.5 mA, CLOAD = 15 pf
ns
Enable Propagation delay “Low to
High” (*8)
-
-
IFHL / IFLH Hysteresis
0.8
1012
0.6
-
-
-
Ratio
VCC = 5 V, RL = 280 Ω
RI-O
CI-O
Input-Output Isolation resistance (*5)
ohm VI-O = 500 V, TA = 25° C
-
-
Input-Output Capacitance (*5)
pf
f = 1M Hz, TA = 25° C
Propagation delay “High to Low”
and “Low to High” (*7)
tPHL & tPLH
-
-
-
45
30
75
-
VCC = 5 V, RL = 350 Ω , IF = 7.5 mA,
ns
CLOAD = 15 pf, TA = 25°C
t
R & tF
Rise and Fall Time
Instantaneous common mode rejection
voltage “High Output” (*9)
VCM = 10 V, RL = 350 Ω , IF = 0 mA,
VO = 2.0 V
CMH
CML
500
-
V/us
Instantaneous common mode rejection
voltage “Low Output” (*9)
VCM = 10 V, RL = 350 Ω , IF = 5 mA,
VO = 0.8 V
-500
-
-
Notes: (Typical values are all at VCC = 5V, Ta = 25°C.
*5 Measured as 2-Pin element. Connect pins 2 and 3, connect pins 5,6,7 and 8.
*6 DC current transfer ratio is defined as the ratio of output collector current to forward bias input current.
*7 Refer to Figure 1.
*8 Refer to Figure 2.
*9 CMH represents a common mode voltage ignorable rise time ratio that can hold logic (1) state in output.
CML represents a common mode voltage ignorable fall time ratio that can hold logic (0) state in output.
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
Issue A.5 02/2010
Page 14 of 20
OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006
Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com
OPIA800—OPIA803, OPID804
DIP Package
Recommended Operating Conditions: OPIA804
Truth Table
Circuit Block Diagram
Figure 1.
Test Circuit Propagation Delay Time
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006
Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com
Issue A.5 02/2010
Page 15 of 20
OPIA800—OPIA803, OPID804
DIP Package
Recommended Operating Conditions (cont.): OPIA804
Test Circuit for Enable Propagation Delay Time
Figure 2.
Figure 3.
Test Circuit for Instantaneous Common Mode Rejection Voltage
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
Issue A.5 02/2010
Page 16 of 20
OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006
Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com
OPIA800—OPIA803, OPID804
DIP Package
OPID804
Characteristic Curves
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006
Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com
Issue A.5 02/2010
Page 17 of 20
OPIA800—OPIA803, OPID804
DIP Package
OPID804
Characteristic Curves
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
Issue A.5 02/2010
Page 18 of 20
OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006
Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com
OPIA800—OPIA803, OPID804
DIP Package
Quality / Reliability Requirements
Parameter
Conditions
11 samples after 500Hrs
@ VCE = 5.0VDC, Ta = 70°C
50 samples after 96Hrs
Failure Criteria
± 10%
HTRB D IC(OFF)
0 Fail
± 10%
HTFB D IC(ON)
0 Fail
@ Max PD, Ta = 25°C
MTTF @ 90% confidence
Moisture Sensitivity Level
Lead Solderability
150,000 Min.
MSL 1
@ 25°C, 25mADC
per JDEC stnd J-STD-020B
per Method 208 of MIL-STD-202.
DSC test method
0 Fail
Glass Transition of body
Temperature Humidity-Bias
Temperature Cycle
125°C Min.
± 20%
85°C, 85%RH, 500Hrs, 80% min Iceo
per Method 1010.7 of MIL-STD-883E
85°C, 500Hrs
± 20%
High Temperature Storage
± 20%
TA = 121°C, Pressure = 15psi, Humidity
= 100%, Time = 96Hrs
Autoclave
0 Fail
Note: This is to be performed when a change occurs to form, fit or function.
Government and Industry Standard
Compliance Requirements
European Union’s Reduction of Hazardous Substances (RoHS) Directive 2002/95/EC
Label Identification
Carrollton, TX, USA
MADE IN TAIWAN
DESCRIPTION:
Size: 3” (7.4 cm) X 2.2” (5.5 cm)
OPTEK P/N __OPIA800D-TU__
Lettering shall be black on white background.
Format shall be as:
IIIIIIIIIIIIIIIIIIIII
Notes:
QTY. ________N/A_________
1. The DATE CODE is a 4-digit code for date of manufacture where YY is
the last two digits of the year, and WW is week number of manufacture.
2. The LOT I.D. is the manufacturing location lot identification where Y is
the year of manufacture, NNNN is a sequential lot identifier, and DDD
is the day of the year of manufacture. – or use equivalent label format.
IIIIIIIIIIIIIIIIIIIII
DATE CODE _____(YYWW)___
IIIIIIIIIIIIIIIIIIIII
LOT I.D. ____(Y-NNNNDDD)__
IIIIIIIIIIIIIIIIIIIII
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006
Phone: (972) 323-2200 or (800) 341-4747 FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com
Issue A.5 02/2010
Page 19 of 20
OPIA800—OPIA803, OPID804
DIP Package
Packaging Information:
Tube
Inner
Small Carton
Medium Carton
Large Carton
52 x 7 x 7.5
cm
53.5 x 16 x 17.5 cm 53.5 x 30.7 x 17.5 cm 53.5 x 30.7 x 25 cm
Optek's Optocoupler
Packaging
Quantities
Qty Weight
Part Numbers
Gross
Weig
Gross
Weight
Gross
Weight
Qty Weight Qty Weight
Qty Weight
Qty Weight
ht
4-PIN
100
44
3,000 1.40 12,000 6.0
6.5 24,000 12.0
12.5 36,000 18.0 18.5
OPIA400D/A, OPIA410D/A -
OPIA413D/A
P/H
and
SMD
6-PIN
OPIA6XXD/A Series
65
48
44
44
1,950 1.50 7,800
1,440 1.44 5,760
6.5
6.0
7.0 15,600 12.0
6.5 11,520 12.0
12.5 23,400 18.5 19.0
12.5 17,290 18.0 18.5
8-PIN
OPIA8XXD Series and OPID804D
M/F
4-PIN and 5-PIN
100
170
24
--
6,000 1.60 24,000 6.5
7.0 48,000 13.0
13.5 72,000 19.5 20.0
OPIA401B - OPIA404B, OPIA414B,
OPIA500B
SOP
4-PIN
10,200
--
SSOP
OPIA405C - OPIA409C
P/H = Pin-Hole Packages (Referred as D = Dual-In-Line Package)
SMD = Standard Surface Mount Packages (Referred as A = 6.5mil SMD)
M/F or SOP = Mini-Flat Packages or Small Outside Packages (Referred as B = 4.40mil SMD w/ 2.54mil Lead-
Spacing)
SSOP = Shrink SOP Packages (Referred as C = 3.60mil SMD with 1.27mil Lead-Spacing)
Tube Packaging Specifications (TU):
DIMENSIONS ARE IN: INCHES [MILLIMETERS]
TOLERANCE: ± 0.008 INCHES
[± 0.2 MILLIMETERS]
Quantity: 8-pin: 48pcs/tube
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
Issue A.5 02/2010
Page 20 of 20
OPTEK Technology Inc. — 1645 Wallace Drive, Carrollton, Texas 75006
Phone: (972) 323-2200 or (800) 341-4747
FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com
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