SKU: SENS-3471
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MLX90614 ESF IR Non-Contact Temperature Sensor Module - I2C Interface

₹699.00 (Inclusive of all taxes)
Out of Stock

The MLX90614 ESF is a factory-calibrated infrared thermopile sensor module for non-contact temperature measurement, featuring a standard I2C interface compatible with 3.3V and 5V systems like Arduino, Raspberry Pi, and ESP32.

Features

  • Non-contact IR temperature sensing with dual measurement ranges: -70°C to +380°C (object) and -40°C to +125°C (ambient).
  • Integrated signal conditioning with 17-bit ADC and DSP for high accuracy (±0.5°C in 0-50°C range) and 0.01°C resolution.
  • Standard I2C digital interface (SMBus compatible) with onboard pull-up resistors for easy daisy-chaining of up to 127 sensors.
  • Low power operation at 2mA from a 3V to 5V supply, with built-in voltage regulator for stable performance.
  • Compact TO-39 package and small PCB (11x17mm) for integration into space-constrained designs and mobile applications.

Out of stock

Description

The MLX90614 ESF integrates a precision IR-sensitive thermopile detector and a signal conditioning ASIC within a single TO-39 metal can. The onboard ASIC includes a low-noise amplifier, 17-bit analog-to-digital converter, and a powerful DSP unit, which processes the raw IR data to provide calibrated temperature readings via a digital I2C interface. This design eliminates the need for complex external calibration circuitry.

Factory calibrated across a wide ambient temperature range, the module delivers reliable performance in demanding environments. Its non-contact measurement principle makes it ideal for monitoring moving parts, high-temperature surfaces, or objects where physical contact is impractical or unsafe. The module also supports a configurable PWM output for continuous temperature streaming.

Key Features

  • High-precision non-contact infrared thermopile sensor with medical-grade accuracy available.
  • Dual temperature measurement: object temperature (To) from -70°C to +380°C and ambient sensor temperature (Ta) from -40°C to +125°C.
  • Standard I2C digital communication interface (SMBus compatible) with built-in pull-up resistors for simplified network design.
  • Onboard voltage regulator supports direct connection to 3.3V or 5V logic systems without external level shifting.
  • Optimized performance-to-cost ratio in a compact, robust TO-39 metal housing for durable construction.
  • Configurable 10-bit PWM output provides an alternative analog-style interface for continuous temperature monitoring.
  • Low operating current (2mA typical) enables use in battery-powered and portable sensing applications.

Applications

  • Non-contact temperature monitoring of industrial machinery, motors, and moving mechanical parts.
  • Thermal comfort sensing and zone control in HVAC and building automation systems.
  • Body temperature screening and medical diagnostic equipment integration.
  • Preventive maintenance and thermal fault detection in consumer electronics and power supplies.
  • Automotive applications including cabin climate control, blind-spot detection, and component thermal management.

Technical Specifications

Manufacturer Part NumberMLX90614
Item TypeSensor Module
Operating Voltage3V to 5V DC
Operating Current2 mA (typical)
Communication ProtocolI2C (SMBus compatible)
Object Temperature Range-70°C to +380°C
Sensor (Ambient) Temperature Range-40°C to +125°C
Accuracy (0°C to +50°C range)±0.5°C (for both Ta and To)
Measurement Resolution0.01°C
PCB Dimensions (L x W)17 mm x 11 mm
Weight1 g

Frequently Asked Questions

What is the operating voltage range for the MLX90614 ESF module?

The module operates from 3.0V to 5.0V DC. It includes an onboard voltage regulator, allowing direct connection to common 3.3V and 5V microcontroller logic levels without requiring external level shifters or additional regulation.

How do I communicate with this sensor using I2C?

The module uses a standard I2C (SMBus compatible) interface. Connect the SDA and SCL pins to your microcontroller's corresponding I2C pins. The module includes built-in pull-up resistors. The default I2C address is 0x5A, but other addresses can be configured for daisy-chaining multiple sensors.

What is the difference between the object temperature and the ambient temperature readings?

The sensor provides two distinct readings: 'To' (object temperature) measures the target's surface temperature from -70°C to 380°C. 'Ta' (ambient temperature) measures the temperature inside the sensor's TO-39 package from -40°C to 125°C, which is used to compensate the object reading for accuracy.

What is the typical measurement distance and field of view?

For accurate readings, a close measurement distance (e.g., 1 cm) is recommended. The sensor has a narrow field of view. Accuracy depends on properly filling its field of view with the target object and ensuring no obstructions or reflective surfaces interfere with the infrared signal.

Can this sensor be used for body temperature measurement?

Yes, the MLX90614 is suitable for non-contact body temperature measurement. For clinical-grade accuracy (±0.1°C), a medical-calibrated version of the sensor must be sourced. Standard versions offer high accuracy (±0.5°C) suitable for screening applications when used within its specified ambient temperature range.

Package Includes

  • 1 x MLX90614 ESF GY-906 Non-Contact Infrared Temperature Measurement Module

Additional Information

Weight 0.001 kg
Dimensions 1.7 × 1.1 cm