ROHM SIR-568ST3F Data Sheet
Summary
The SIR-568ST3F is a high-luminous output infrared LED sensor designed for reliable signal transmission in audiovisual and data applications. Ideal for connecting audio-visual equipment, it supports various types of optical image transfer and high-speed data communication over air. This manual provides comprehensive technical specifications, including detailed electrical and optical performance data—such as absolute maximum ratings, frequency response curves, temperature dependencies, and directional patterns—to assist designers in selecting the optimal component for robust transmission systems.
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SIR-568ST3F
Sensors
Infrared light emitting diode, top view type SIR-568ST3F The SIR-568ST3F has the response speed and luminous output necessary for image transmission in audio-visual applications. It can support almost all types of optical transmission through air, including audio and data transmission. The luminous output is 13m W and the cutoff frequency is 50MHz.
Applications Dimensions (Unit : mm)
Transmission of images from a video cassette recorder
to a television.
Notes:
Transmission of audio signals between audio devices. 1. Unspecified tolerance
shall be ±0.2 . High speed data transmission. 2. Dimension in parenthesis are show for reference.
Features
1) High luminous output 13m W. 2− 0.5
2) Fast response is possible 50MHz cutoff frequency.
2. 5± ax .1
in .2 8. 7± 0.
Anode Cathode
Absolute maximum ratings (Ta = 25°C)
Parameter Symbol Limits Unit
Forward current IF m A
Reverse voltage VR 4.0
Power dissipation PD m W
Pulse forward current IFP∗ 0.5
Operating temperature Topr −25 to +85 °C
Storage temperature Tstg −40 to +85 °C ∗ Pulse width = 0.1 msec, duty ratio 1%
Rev.A 1/3
Page Summary Contents For ROHM SIR-568ST3F Data Sheet
Manual Details
| Brand | ROHM |
|---|---|
| Pages | 4 |
| File Size | 69.76 KB |
| Published | July 10, 2026 |
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Frequently Asked Questions
What types of transmission signals can this sensor support?
It supports almost all types of optical transmission through air, including audio and data transmission.
What is the maximum cutoff frequency for image or data transmission?
The cut-off frequency (fc) is up to 50 MHz, ensuring fast response at high speeds.
Is this sensor suitable for critical life safety applications?
No. It should only be used with ordinary electronic equipment and not in systems where malfunction could endanger human life.
What are the required operating temperature ranges?
The specified operating temperature range (Topr) is from -25°C to +85°C.