IR Receiver Diode

TSOP38238 IR Receiver Diode
The "382" in the part number indicates it is tuned to the 38kHz frequency, which is the global standard for consumer electronics. Its specialized epoxy package acts as a daylight filter, allowing the sensor to "see" a remote's signal even in a bright room or near a window.

 
Why it’s a Professional-Grade Essential:
• Superior Noise Suppression: The TSOP38238 is famous for its "best-in-class" immunity to ambient light. It can ignore the flicker of fluorescent tubes and the infrared "glare" of sunlight better than generic sensors like the VS1838B.
• Protocol Versatility: It is specifically designed to handle long-burst data protocols without the sensor "saturating." This makes it highly compatible with complex signals like Sony (SIRC), Panasonic, and NEC.
• Low-Voltage Capability: With an operating range down to 2.5V, it is perfect for modern 3.3V systems (like ESP32 or Raspberry Pi) while remaining fully compatible with 5V Arduinos.
• Minimal Footprint: Its flat, compact design allows it to be tucked away in very slim enclosures, often requiring only a tiny 2mm window to receive signals.

 
Technical Capabilities:
• Supply Current: Only 0.7mA to 3mA (Ultra-low power).
• Transmission Distance: Up to 45 meters (in optimal conditions).
• Carrier Frequency: 38kHz.
• Digital Logic: Active LOW (The OUT pin drops to 0V when an IR signal is detected).

 
Best For:
The TSOP38238 is the primary choice for high-reliability home automation, long-range IR communication, universal learning remotes, and industrial optical switches.