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| SIR-320ST3F Sensors Infrared light emitting diode, top view type SIR-320ST3F The SIR-320ST3F is a GaAs infrared light emitting diode housed in clear plastic. This device has a high luminous efficiency and a 940nm spectrum suitable for silicon detectors. It is small and at the same time has a wide radiation angle, marking it ideal for compact optical control equipment. Applications Optical control equipment Light source for remote control devices Dimensions (Unit : mm) 3.80.3 3.10.2 Notes: 1. Unspecified tolerance shall be 0.2. 2. Dimension in parenthesis are show for reference. 5.20.3 Min.24 Features 1) Compact (3.1mm). 2) High efficiency, high output PO=9.0mW (IF=50mA). 3) Wide radiation angle =18deg. 4) Emission spectrum well suited to silicon detectors (P=940nm). 5) Good current-optical output linearity. 6) Long life, high reliability. 2 1 (2.5) 20.2 2.51 2- 0.5 Max.1 4-0.6 1.1 1 Anode 2 Cathode Absolute maximum ratings (Ta = 25C) Parameter Forward current Reverse voltage Power dissipation Pulse forward current Operating temperature Storage temperature Pulse width=0.1msec, duty ratio 1% Symbol IF VR PD IFP Topr Tstg Limits 75 5 100 0.5 -25 to +85 -40 to +85 Unit mA V mW A C C Rev.B 1/3 SIR-320ST3F Sensors Electrical and optical characteristics (Ta = 25C) Parameter Optical output Emitting strength Forward voltage Reverse current Peak light emitting wavelength Spectral line half width Half-viewing angle Pesponse time Cut-off frequency Symbol PO IE VF IR Min. - 5.6 - - - - - - - Typ. 9 - 1.2 - 940 40 18 1.0 1.0 Max. - - 1.5 10 - - - - - Unit mW mW/sr V A nm nm deg s MHz IF=50mA IF=50mA IF=50mA VR=3V IF=50mA IF=50mA IF=50mA IF=50mA IF=50mA Conditions P 1 / 2 tr*tf fC Electrical and optical characteristic curves FORWARD CURRENT : IF (mA) 100 -25C 0C RELATIVE OPTICAL OUTPUT : PO (%) 2 100 FORWARD CURRENT : IF (mA) 100 80 60 40 80 80 25C 50C 60 60 75C 40 40 20 20 20 0 850 0 -20 0 20 40 60 80 100 00 1 FORWARD VOLTAGE : VF (V) 900 950 1000 1050 AMBIENT TEMPERATURE : Ta (C) OPTICAL WAVELENGTH : (nm) FIg.1 Forward current falloff Fig.2 Forward current vs. forward voltage Fig.3 Wavelength 50 EMITTING STRENGTH : IE (mW/sr) RELATIVE EMITTING STRENGTH : IE (%) 200 40 100 50 30 20 20 10 -20 0 20 40 60 80 100 10 0 0 20 40 60 80 100 FORWARD CURRENT : IF (mA) AMBIENT TEMPERATURE : Ta (C) Fig.4 Emitting strength vs. forward current Fig.5 Radiant intensity vs. ambient temperature Rev.B 2/3 SIR-320ST3F Sensors RELATIVE EMITTING STRENGTH (%) RELATIVE EMITTING STRENGTH (%) 20 30 40 50 60 60 40 70 80 90 100 20 80 10 0 100 80 60 40 20 0 0 10 20 30 40 50 60 70 80 90 ANGULAR DISPLACEMENT : (deg) RELATIVE EMITTING STRENGTH (%) Fig.6 Directional pattern 20 30 40 50 10 0 100 80 no masking 60 70 80 90 100 60 40 20 80 60 40 20 0 0 10 20 30 40 50 60 70 80 90 ANGULAR DISPLACEMENT : (deg) RELATIVE EMITTING STRENGTH (%) Fig.7 Directional pattern Rev.B 3/3 Appendix Notes No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product described in this document are for reference only. Upon actual use, therefore, please request that specifications to be separately delivered. Application circuit diagrams and circuit constants contained herein are shown as examples of standard use and operation. Please pay careful attention to the peripheral conditions when designing circuits and deciding upon circuit constants in the set. Any data, including, but not limited to application circuit diagrams information, described herein are intended only as illustrations of such devices and not as the specifications for such devices. ROHM CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any third party's intellectual property rights or other proprietary rights, and further, assumes no liability of whatsoever nature in the event of any such infringement, or arising from or connected with or related to the use of such devices. Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or otherwise dispose of the same, no express or implied right or license to practice or commercially exploit any intellectual property rights or other proprietary rights owned or controlled by ROHM CO., LTD. is granted to any such buyer. Products listed in this document are no antiradiation design. The products listed in this document are designed to be used with ordinary electronic equipment or devices (such as audio visual equipment, office-automation equipment, communications devices, electrical appliances and electronic toys). Should you intend to use these products with equipment or devices which require an extremely high level of reliability and the malfunction of with would directly endanger human life (such as medical instruments, transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other safety devices), please be sure to consult with our sales representative in advance. About Export Control Order in Japan Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control Order in Japan. In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause) on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction. Appendix1-Rev1.1 |
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