High Reliability Hermetic

Infrared Emitting Diode

OP235, OP236 (TX, TXV)

© TT electronics plc

Issue A

11/2016

Page 1

TT Electronics | Optek Technology, Inc.

1645 Wallace Drive, Ste. 130, Carrollton, TX USA 75006 |Ph: +1 972 323 2200

www.ttelectronics.com | sensors@ttelectronics.com

General Note

TT Electronics reserves the right to make changes in product specification without

notice or liability. All information is subject to TT Electronics’ own data and is

considered accurate at time of going to print.

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-19500. After 100%

screening, Group A and B are performed on every lot and a Group C test is performed every six months.

Please refer to Application Bulletins 208 and 210 for additional design information and reliability (degradation) data.

Applications:



Non-contact reflective object sensor



Assembly line automation



Machine automation



Machine safety



End of travel sensor



Door sensor



Military and harsh environments

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

Part

Number

LED

Peak

Wavelength

Output Power

Min / Max

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

[ MILLIME-