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 03/09
Page 1 of 3
High Reliability Hermetic Infrared Emitting Diode
OP235, OP236 (TX, TXV)
Description:
Each device in this series is a gallium aluminum arsenide (GaAIAs) infrared emitting diode, mounted in a hermetic
metal TO-46 housing with 0.50” (12.70 mm) leads. The gallium aluminum arsenide feature provides a higher
radiated output than gallium arsenide at the same forward current, while the 890 nm wavelength closely matches
the spectral response of silicon phototransistors. Devices have lens cans that provide an 18° beam angle
between half power points, which facilitates the easy design of beam interrupt applications with the OP804 and
OP805 series of high reliability phototransistors.
TX and TXV devices are processed to OPTEK’s military screening program patterned after MIL-PRF -19 500. After
100% screening, Group A and B are performed on every lot and a Group C test is performed eve ry six months.
Please refer to Application Bulletins 208 and 210 for additional design information and reliability (degradation) data.
Contact your local representative or OPTEK for more information.
Features:
• TO-46 hermetically sealed package with lens
• Twice the power output of GaAs at same drive current
• Characterized to define infrared energy along mechanical axis of
device
• Narrow beam angle
• Processed to MIL-PRF-19500.
Applications:
• Non-contact reflective object sensor
• Assembly line automation
• Machine automation
• Machine safety
• End of travel sensor
• Door sensor
• Military and harsh environments
Part
Number
LED
Peak
Wavelength
Output Power
(mW/cm2)
Min / Max
IF (mA)
Typ / Max
Total
Beam
Angle
Lead
Length
OP235TX
890 nm
1.5 / NA
50 / 100 18° 0.50"
OP235TXV
OP236TX 3.5 / NA
OP236TXV
2
1
Pin # LED Sensor
1 Anode Collector / Cathode
2 Cathode Emitter / Anode
DIMENSIONS ARE IN:
INCHES
[ MILLIMETERS]