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IR Receiving Head-TSOP1838

SKU: CLHDL18OGU
★★★★ ★ ★
4.3 (74 reviews)
The TSOP1838 IR Receiving Head is a compact infrared receiver designed to detect and decode 38kHz modulated infrared signals commonly used in remote control systems. It integrates a PIN photodiode, preamplifier, automatic gain control (AGC), band-pass filter, and demodulator into a single package, providing a clean digital output that can be directly connected to a microcontroller. The TSOP1838 is optimized...
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The TSOP1838 IR Receiving Head is a compact infrared receiver designed to detect and decode 38kHz modulated infrared signals commonly used in remote control systems. It integrates a PIN photodiode, preamplifier, automatic gain control (AGC), band-pass filter, and demodulator into a single package, providing a clean digital output that can be directly connected to a microcontroller.

The TSOP1838 is optimized for reliable reception of infrared remote control signals while offering excellent immunity to ambient light, electrical noise, and interference. It supports most popular IR communication protocols, including NEC, RC5, RC6, Sony SIRC, and similar 38kHz-based protocols, making it suitable for a wide variety of consumer and industrial applications.

Operating from 2.5V to 5.5V, the TSOP1838 is fully compatible with Arduino, ESP32, STM32, Raspberry Pi Pico, AVR, PIC, and other embedded platforms. It is widely used in TV remotes, home automation, robotics, smart appliances, IR communication systems, and DIY electronics projects.

Key Features

  • 38kHz infrared receiver
  • Integrated photodiode and preamplifier
  • Built-in automatic gain control (AGC)
  • Internal band-pass filter and demodulator
  • High immunity to ambient light interference
  • Excellent resistance to electrical noise
  • Active LOW digital output
  • Low power consumption
  • Fast response time
  • TTL and CMOS compatible output
  • Compact 3-pin package
  • Wide operating voltage range
  • Compatible with Arduino, ESP32, STM32, and Raspberry Pi
  • Ideal for remote control and IR communication applications

Shipping & Returns

Orders placed before 3 PM IST will be shipped on the same day (excluding Sundays and Public holidays) through our shipping partners. In rare cases, the pickup may get delayed during Public holidays / Bandh / Environmental disturbances.

Specifications

Specifications:

Component Type: Infrared Receiver Module
Part Number: TSOP1838
Carrier Frequency: 38kHz
Detection Principle: Infrared Remote Signal Reception
Package Type: Through-Hole 3-Pin Package
Operating Voltage: 2.5V to 5.5V DC
Typical Operating Voltage: 5V DC
Supply Current: Typically 0.4mA to 1mA
Output Type: Digital (Active LOW)
Logic Compatibility: TTL and CMOS Compatible
Infrared Wavelength: 940nm
Reception Angle: ±45° (Typical)
Reception Distance: Up to 18–45m (Depending on IR Transmitter Strength and Environment)
Built-in Functions: Photodiode, Preamplifier, AGC, Band-Pass Filter, Demodulator
Response Time: Fast Response
Operating Temperature: -25°C to +85°C
Storage Temperature: -40°C to +85°C
Mounting Type: Through-Hole
Compatibility: Arduino, ESP32, STM32, Raspberry Pi Pico, AVR, PIC

Additional Resources

TSOP1838.PDF

FAQ

1. What is the TSOP1838 IR Receiving Head used for?

The TSOP1838 is used to receive and decode 38kHz infrared signals from remote controls in applications such as TVs, home automation systems, robotics, smart appliances, and embedded electronics.

2. Can the TSOP1838 work with Arduino and ESP32 boards?

Yes. The TSOP1838 operates from 2.5V to 5.5V and provides a TTL-compatible digital output, making it fully compatible with Arduino, ESP32, STM32, Raspberry Pi Pico, AVR, PIC, and other microcontrollers.

3. What carrier frequency does the TSOP1838 detect?

The TSOP1838 is optimized for 38kHz modulated infrared signals, which are commonly used by most consumer IR remote controls.

4. Does the TSOP1838 require external amplification or filtering?

No. The TSOP1838 integrates a photodiode, preamplifier, automatic gain control, band-pass filter, and demodulator, providing a clean digital output without the need for additional signal conditioning.

5. What types of remote controls are compatible with the TSOP1838?

The TSOP1838 is compatible with most 38kHz infrared remote controls using protocols such as NEC, RC5, RC6, Sony SIRC, and many other standard IR communication formats.