The TSOP JS-1838B is a compact infrared receiver module designed for remote control systems operating at a 38kHz carrier frequency. It integrates a photodiode and preamplifier in a single package, providing high sensitivity and excellent noise immunity against ambient light and electrical interference. The module delivers a demodulated output signal, making it compatible with various microcontrollers for decoding IR signals. Its low power consumption and compact design make it suitable for a wide range of applications.
Features
- High sensitivity to 38kHz infrared signals.
- Excellent noise suppression against ambient light and electrical interference.
- TTL and CMOS compatible output.
- Low power consumption.
- Compact design for easy integration.
- Suitable for various remote control applications.
Specifications
| Parameter |
Value |
| Operating Voltage |
2.7–5.5VDC |
| Carrier Frequency |
38kHz |
| Low-Level Output Voltage |
0.4V |
| High-Level Output Voltage |
Up to 4.5V |
| Receiving Distance |
Up to 15m |
| Viewing Angle |
±35° |
| Supply Current |
0.4–1.5mA |
| Output Type |
Active low |
| Compatibility |
Arduino, Raspberry Pi |
PINOUT

| Pin Number |
Pin Name |
Description |
| 1 |
Out |
The signal pin gives out the sequence based on the IR signal detected |
| 2 |
Ground |
Connected to the Ground of the circuit |
| 3 |
Vcc |
Typically connected to +5V |
Applications
- Infrared remote control systems.
- Home automation projects.
- Consumer electronics.
- Educational electronics projects.
- Prototyping with microcontrollers.
Package Contents
- 1x TSOP JS-1838B Infrared Remote Receiver.
Datasheet