Universal IR Infrared Receiver Sensor Module 1838 TL1838 VS1838B 38Khz Diode CHQ1838
KSH 60.00
In Stock
The Universal IR Infrared Receiver Sensor Module is a compact and highly sensitive component designed for receiving and demodulating 38kHz infrared signals from standard remote controls[citation:9][citation:1]. This versatile module integrates a photodetector and preamplifier in a single package, making it an essential component for remote control receivers, automation projects, and Arduino-based systems[citation:1][citation:6].
| Parameter | Value |
|---|---|
| Carrier Frequency | 38kHz (±0.5kHz)[citation:1] |
| Supply Voltage | 2.7V - 5.5V DC[citation:3][citation:5] |
| Supply Current | 1.5mA (typical)[citation:3][citation:11] |
| Receiver Angle | 45-90° (depending on variant)[citation:3][citation:5] |
| Receiving Distance | 10-25m (varies)[citation:5][citation:13] |
| Output Type | TTL/CMOS compatible - Active Low[citation:1] |
| Output Low Level | 0.4V (typical)[citation:3] |
| Output High Level | 4.5V (typical)[citation:3] |
| BMP Width | 2-5kHz[citation:3] |
| Wavelength | 940nm[citation:7] |
| Operating Temp | -20°C to +80°C[citation:11] |
| Package | Metal housing / Epoxy resin[citation:1][citation:13] |
| Mounting | Throughhole (3pin)[citation:11] |
= Key Features =
38kHz Carrier Frequency - Compatible with most consumer remote controls (NEC, RC5 codes)[citation:1][citation:6]
Integrated Design - Photodetector and preamplifier in one package simplifies circuit design[citation:1][citation:6]
High Immunity - Excellent resistance to ambient light and electromagnetic interference[citation:1][citation:5]
Wide Operating Voltage - 2.7V to 5.5V for versatile applications[citation:3][citation:5]
TTL/CMOS Compatible - Direct interface with microcontrollers and digital circuits[citation:1][citation:6]
Low Power Consumption - Only ~1.5mA typical current draw[citation:3][citation:11]
| Pin | Function | Description |
|---|---|---|
| 1 | OUT | Signal output (active low)[citation:8] |
| 2 | GND | Ground (0V) |
| 3 | VCC | Power supply (2.7-5.5V)[citation:5] |
> Pinout may vary between manufacturers - verify with datasheet[citation:9]
| Sensor Pin | Arduino Pin | Description |
|---|---|---|
| VCC (Pin 3) | 5V | Power supply (2.7-5.5V) |
| GND (Pin 2) | GND | Ground |
| OUT (Pin 1) | Digital Pin | Signal output |
> Add a 10kΩ pull-up resistor between VCC and OUT for stable operation[citation:1]
| Condition | Output State | Explanation |
|---|---|---|
| No IR Signal | HIGH | Sensor idle state |
| Valid IR Signal Received | LOW (pulsing) | Active low output responds to 38kHz signal |
> Output is opencollector requires pull-up resistor to function correctly[citation:11]
√ Compatible with Arduino, ESP32, and all microcontroller platforms[citation:6]
√ Direct replacement for VS1838B, TL1838, HX1838 variants[citation:5][citation:9]
√ No additional components required besides pull-up resistor
√ Wide receiving angle for flexible mounting
√ Long receiving range up to 25 meters[citation:13]
## What's Included
The Universal IR Infrared Receiver Sensor Module provides reliable and cost-effective infrared signal reception for any remote control application. With its simple interface and compatibility with standard 38kHz remote controls, it's the ideal choice for automation, robotics, and DIY projects.
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