TSOP1838 IR Receiver Sensor (38kHz)

The TSOP1838 is a 3-pin infrared receiver module designed to detect 38kHz modulated IR signals from remote controls. It features an integrated photodiode, preamplifier, automatic gain control (AGC), and demodulator, providing a clean digital output for easy interfacing with microcontrollers such as Arduino, ESP32, Raspberry Pi, and PIC.

Features:

• Designed for 38kHz IR remote signals
• High sensitivity and long receiving distance
• Built-in AGC for stable signal reception
• Excellent ambient light and noise immunity
• Low power consumption
• 3-pin through-hole package
• Direct digital output

Specifications:

• Model: TSOP1838
• Type: Infrared Receiver Sensor
• Carrier Frequency: 38kHz
• Operating Voltage: 2.5V–5.5V DC
• Output Type: Active LOW Digital Output
• Receiving Angle: ±45° (Typical)
• Package: 3-Pin Through-Hole
• Operating Temperature: -25°C to +85°C

Pin Configuration

When viewing the front (black lens facing you) with the pins pointing downward:

1. OUT – Digital Output
2. GND – Ground
3. VCC – Supply Voltage (2.5V–5.5V)

Note: Some manufacturers use a different pin arrangement. Always verify the pinout from the part marking or datasheet before connecting.

Package Includes:

• 1 × TSOP1838 IR Receiver Sensor (38kHz)