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SIM-20ST

SIM-20ST Description

The SIM-20ST by ROHM Semiconductor is an infrared (IR) emitter designed for applications requiring reliable and efficient IR light output. Operating at a peak wavelength of 950nm, this through-hole-mounted device delivers a radiant intensity of 7.5mW/sr at 50mA, making it suitable for low-power IR applications. With a forward voltage (Vf) of 1.3V (Typ) and a maximum forward current (If) of 50mA, it balances performance with energy efficiency. The 30° viewing angle and side-view orientation ensure optimal light distribution for targeted applications. Though marked as obsolete, its ROHS3 compliance and REACH unaffected status make it a viable choice for legacy systems.

SIM-20ST Features

• High Radiant Intensity: Delivers 7.5mW/sr @ 50mA, ensuring strong IR output for detection systems.
• Precise Wavelength: 950nm emission ideal for IR-sensitive receivers and sensors.
• Low Forward Voltage: 1.3V (Typ) reduces power consumption in battery-operated devices.
• Durable Packaging: Radial through-hole design provides mechanical stability for harsh environments.
• Compliance: ROHS3 Compliant and REACH Unaffected, meeting environmental standards.
• Wide Operating Range: MSL 1 (Unlimited) ensures reliability in varied humidity conditions.

SIM-20ST Applications

The SIM-20ST excels in applications requiring consistent IR emission, such as:

• Proximity Sensors: Ideal for object detection in automation and security systems.
• Remote Controls: Efficient IR transmission for consumer electronics.
• Optical Encoders: Provides reliable signal generation in industrial machinery.
• Barrier Systems: Used in safety and counting systems due to its focused beam angle.
• Legacy Electronics: Suitable for maintaining or repairing older IR-based devices.

Conclusion of SIM-20ST

The SIM-20ST is a robust IR emitter offering a balance of performance, efficiency, and compliance. While obsolete, its high radiant intensity, low power requirements, and durable design make it a practical choice for specific IR applications. Engineers working on legacy systems or cost-sensitive projects will find it a reliable component, particularly where 950nm wavelength and side-view emission are critical. Its adherence to environmental standards further ensures compatibility with modern regulatory requirements.