SKU: SENS-3225
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NEWOPTO XYC-PT21C-L1 1206 Ambient Light Sensor

₹9.00 (Inclusive of all taxes)
Out of Stock

The NEWOPTO XYC-PT21C-L1 is a compact 1206 SMD ambient light sensor module designed for automatic brightness control in portable electronics and IoT devices. It operates on a 2.4V to 3.6V supply, making it compatible with 3.3V logic systems like ESP32, Raspberry Pi, and various microcontrollers.

Features

  • Compact 1206 SMD package for space-constrained PCB designs
  • Low voltage operation from 2.4V to 3.6V DC
  • Peak spectral sensitivity at 540nm, closely matching human eye response
  • Integrated infrared filtering for accurate ambient light measurement
  • Low power consumption for battery-powered applications

Out of stock

Description

The XYC-PT21C-L1 is a photodiode-based ambient light sensor (ALS) that converts light intensity into a corresponding electrical signal. Its spectral response is optimized with an infrared filter to accurately measure visible light levels, enabling precise automatic display dimming and backlight control in consumer electronics.

Engineered for reliability, this sensor module provides a stable analog or digital output (depending on specific variant) proportional to illuminance. Its small 1206 footprint and RoHS-compliant construction make it suitable for high-volume, automated surface-mount assembly processes in smartphones, tablets, and smart home devices.

Key Features

  • High-accuracy light intensity detection across a wide dynamic range
  • Optimized spectral sensitivity peaking at 540nm wavelength
  • Integrated IR rejection filter for improved measurement accuracy
  • Ultra-low power consumption for extended battery life
  • Compact 1206 surface-mount package for miniaturized designs
  • RoHS-compliant, lead-free construction for global compliance
  • Stable performance across the 2.4V to 3.6V operating range

Applications

  • Automatic brightness adjustment for smartphone, tablet, and laptop displays
  • Backlight dimming control in automotive instrument clusters and infotainment systems
  • Energy-saving light management in smart home IoT devices and sensors
  • Ambient light detection for digital signage and public information displays
  • Photometric measurements in portable consumer electronics and wearables

Technical Specifications

Manufacturer / BrandNEWOPTO
Manufacturer Part Number (MPN)PT21C-L1
Product Series / ModelXYC-PT21C-L1
Package / Case1206 (SMD)
Operating Voltage2.4 V to 3.6 V DC
Peak Wavelength (λp)540 nm
ComplianceRoHS
Primary FunctionAmbient Light Sensing (ALS)

Frequently Asked Questions

What is the operating voltage range for the NEWOPTO PT21C-L1 sensor?

The NEWOPTO XYC-PT21C-L1 ambient light sensor operates from 2.4 volts to 3.6 volts DC. This range makes it directly compatible with standard 3.3V logic systems found on development boards like ESP32, STM32, and Raspberry Pi without requiring a level shifter.

What does the 540nm peak wavelength specification mean?

The 540nm peak wavelength indicates the sensor is most sensitive to green light at 540 nanometers. This spectral sensitivity is intentionally designed to closely match the photopic response of the human eye, ensuring the sensor's readings correlate well with perceived brightness for accurate automatic display dimming.

Is this sensor suitable for surface-mount assembly?

Yes, the sensor comes in a compact 1206 surface-mount device (SMD) package. This standard footprint is designed for automated pick-and-place assembly on printed circuit boards (PCBs), making it ideal for high-volume production of consumer electronics, IoT devices, and portable gadgets where space is limited.

Package Includes

  • 1 x NEWOPTO XYC-PT21C-L1 1206 Ambient Light Sensor

Additional Information

Weight 0.01 kg
Dimensions 1 × 0.8 cm