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Home > Products > Sensors, Transducers > Temperature Sensors > Analog and Digital Output

Melexis Technologies NV MLX90614ESF-BBA-000-TU

Name: MLX90614ESF-BBA-000-TU
Brand: Melexis Technologies NV
SKU: MLX90614ESF-BBA-000-TU
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MLX90614ESF-BBA-000-TU

Manufacturer:: Melexis Technologies NV

Category:: Analog and Digital Output

Package:: TO-39-4 Metal Can

Datasheet:: MLX90614ESF-BBA-000-TU.pdf

Description:: THERMOMETER IR DUAL 3V TO-39

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Product details

Overview

MLX90614ESF-BBA-000-TU from Melexis is a factory-calibrated, single-zone infrared thermometer IC in TO-39 metal can package, delivering ±0.5°C accuracy (0°C to +50°C) for both ambient and object temperature, 0.02°C measurement resolution in SMBus mode, and dual-output capability via SMBus interface or configurable 10-bit PWM - used in automotive blind-angle detection, thermal comfort control, and medical-grade body temperature sensing.

For engineers reviewing the MLX90614ESF-BBA-000-TU datasheet, pinout, applications, or equivalent options, key selection factors include its -40°C to +125°C operating ambient range, 3.0V supply compatibility, integrated optical long-wave pass filter (5.5–14 µm), and thermal gradient compensation in xCx variants - critical for non-contact industrial and automotive thermal monitoring where isothermal mounting is constrained.

Technical Context

The MLX90614ESF-BBA-000-TU integrates a thermopile IR detector and signal-conditioning ASSP on a single die inside a TO-39 can, using a low-noise chopper amplifier, 17-bit sigma-delta ADC, and programmable DSP to compute Ta and To with 0.01°C internal resolution. Its SMBus slave interface operates at 10–100 kHz with fixed 0x5A address and supports EEPROM configuration of emissivity (0.1–1.0), PWM range, and thermal relay thresholds.

It features dual-mode operation: default SMBus communication (power-on reset state) or user-configurable PWM output with 1.024 ms period and ±10% stability over temperature and supply; sleep mode reduces current to 2–6 µA and is enabled only on 3.0V Bxx variants like this one - not available on 5.0V Axx versions.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage	2.6 V to 3.6 V - compatible with battery-powered or low-voltage regulated systems without level-shifting
Object Temp Range	-70°C to +380°C - enables high-temp industrial monitoring (e.g., printer fusers, motor windings)
Ambient Temp Range	-40°C to +125°C - meets automotive grade AEC-Q100 ambient requirements
Accuracy (Ta/To)	±0.5°C @ 0°C to +50°C - validated under isothermal conditions for clinical and HVAC use
Measurement Resolution	0.02°C (SMBus) / 0.14°C (PWM) - enables fine-grained thermal trending in closed-loop control
Interface	SMBus 2-wire (10–100 kHz) + configurable PWM - allows host MCU integration with minimal GPIO overhead
Optical Filter	5.5 µm to 14 µm long-wave pass - rejects visible/NIR interference from sunlight or LEDs

Pinout & Package

MLX90614ESF-BBA-000-TU uses the industry-standard 4-pin TO-39 metal can package (SF code), with hermetically sealed IR window and integrated optical filter. The metal can must connect to VSS only - no other electrical connection permitted per EMC and isothermal integrity requirements.

Pin/Terminal	Circuit Role	Design Meaning
1: SCL / Vz	SMBus clock input / Zener clamp	Accepts 10–100 kHz clock; internal 5.7 V zener protects against overvoltage on Axx variants - not present in Bxx (3V) version
2: SDA / PWM	Bi-directional data / PWM output	Default SMBus data line; reconfigurable as open-drain or push-pull PWM output for thermostat alerts
3: VDD	Positive supply	3.0 V nominal input; POR threshold 1.3–1.95 V ensures reliable startup across temperature
4: VSS	Ground reference	Single-point connection point for metal can; mandatory for thermal equilibrium and EMI suppression

Key Features

Feature	Design Value
Factory calibration	Pre-programmed Ta/To coefficients stored in EEPROM eliminate field calibration effort for production systems
Thermal gradient compensation	Internal TGC sensor corrects for package thermal gradients - improves accuracy in non-isothermal mounts (e.g., near hot PCB traces)
User-programmable emissivity	16-bit EEPROM register (0x04) accepts ε = 0.1–1.0; no black-body recalibration needed for material-specific surfaces
Configurable thermal relay	PWM pin doubles as programmable alert output - triggers interrupt on host MCU when To exceeds user-defined threshold
Sleep mode	Reduces IDD to 2–6 µA - extends battery life in portable thermal monitors and wearable health devices

Applications

Automotive Blind-Angle Detection	Medical Body Temperature Screening
Use Scenario: Detecting presence and proximity of objects outside driver's field of view using passive IR sensing mounted on side mirrors or rear pillars. IC Role / Device Role / Timing Role: Non-contact object temperature sensor feeding thermal image preprocessing logic; provides raw To data every 250 ms after power-up. Use Value: Enables low-power, sunlight-immune detection without active illumination - critical for ASIL-B adjacent systems requiring fail-safe thermal awareness.	Use Scenario: Contactless forehead or tympanic temperature measurement in clinical triage, kiosks, or home health devices. IC Role / Device Role / Timing Role: Primary IR sensing element with medical-grade accuracy (±0.2°C option available); outputs calibrated To via SMBus for display or cloud upload. Use Value: Delivers repeatable sub-0.5°C accuracy without skin contact - avoids cross-contamination and supports FDA-cleared thermal screening workflows.
Industrial Printer Fuser Monitoring	Smart HVAC Thermal Comfort Control
Use Scenario: Real-time surface temperature monitoring of heated rollers and fuser assemblies in laser printers and copiers to prevent overheating or paper jams. IC Role / Device Role / Timing Role: High-temp IR sensor interfaced to MCU via SMBus; reads To every 500 ms during warm-up and steady-state operation. Use Value: Supports closed-loop thermal regulation up to 380°C - prevents polymer degradation and extends consumable life in high-volume office equipment.	Use Scenario: Zone-based ambient temperature feedback for variable refrigerant flow (VRF) air conditioning in commercial buildings and electric vehicles. IC Role / Device Role / Timing Role: Ambient temperature (Ta) and occupant surface temperature (To) sensor feeding HVAC controller; PWM output drives local thermostatic actuation. Use Value: Enables personalized thermal comfort via dual-zone differential sensing - reduces energy consumption by 12–18% compared to single-sensor thermostats.

Automotive Blind-Angle Detection

Medical Body Temperature Screening

Use Scenario: Detecting presence and proximity of objects outside driver's field of view using passive IR sensing mounted on side mirrors or rear pillars.

IC Role / Device Role / Timing Role: Non-contact object temperature sensor feeding thermal image preprocessing logic; provides raw To data every 250 ms after power-up.

Use Value: Enables low-power, sunlight-immune detection without active illumination - critical for ASIL-B adjacent systems requiring fail-safe thermal awareness.

Use Scenario: Contactless forehead or tympanic temperature measurement in clinical triage, kiosks, or home health devices.

IC Role / Device Role / Timing Role: Primary IR sensing element with medical-grade accuracy (±0.2°C option available); outputs calibrated To via SMBus for display or cloud upload.

Use Value: Delivers repeatable sub-0.5°C accuracy without skin contact - avoids cross-contamination and supports FDA-cleared thermal screening workflows.

Industrial Printer Fuser Monitoring

Smart HVAC Thermal Comfort Control

Use Scenario: Real-time surface temperature monitoring of heated rollers and fuser assemblies in laser printers and copiers to prevent overheating or paper jams.

IC Role / Device Role / Timing Role: High-temp IR sensor interfaced to MCU via SMBus; reads To every 500 ms during warm-up and steady-state operation.

Use Value: Supports closed-loop thermal regulation up to 380°C - prevents polymer degradation and extends consumable life in high-volume office equipment.

Use Scenario: Zone-based ambient temperature feedback for variable refrigerant flow (VRF) air conditioning in commercial buildings and electric vehicles.

IC Role / Device Role / Timing Role: Ambient temperature (Ta) and occupant surface temperature (To) sensor feeding HVAC controller; PWM output drives local thermostatic actuation.

Use Value: Enables personalized thermal comfort via dual-zone differential sensing - reduces energy consumption by 12–18% compared to single-sensor thermostats.

Equivalent & Alternatives

The following parts are listed as comparable options for similar non-contact IR temperature sensing applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MLX90614ESF-BCI-000-TU	Uncoated silicon lens (no long-wave filter); wider spectral response (1–20 µm) but reduced sunlight immunity	Preferred for lab-grade IR spectroscopy or multi-material emissivity studies where ambient IR rejection is secondary	Select only if optical path includes external bandpass filtering and ambient IR exposure is fully controlled
AMG8833	8×8 thermal array (64 pixels); I²C interface; no built-in optics; requires external lens and calibration	Used for thermal imaging, gesture recognition, or occupancy mapping - not single-point spot measurement	Choose when spatial temperature distribution matters more than absolute spot accuracy or compact form factor

Compared with MLX90614ESF-BBA-000-TU, the MLX90614ESF-BCI-000-TU trades ambient IR rejection for broader spectral flexibility, while the AMG8833 shifts from precision single-point sensing to low-resolution thermal imaging - neither offers drop-in replacement capability due to differing optics, calibration structure, and output format.

Availability

MLX90614ESF-BBA-000-TU is available at Aetrix Electronics and suitable for automotive blind-spot detection, medical thermal screening, and industrial printer fuser monitoring requiring stable component supply, long-term lifecycle support, and traceable sourcing from authorized channels.

Supply support for MLX90614ESF-BBA-000-TU includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Melexis is a Belgian semiconductor company specializing in sensor and wireless RF ICs, with core expertise in magnetic, infrared, and pressure sensing technologies for automotive and industrial markets.

The MLX90614 product line delivers factory-calibrated, single-chip IR thermometers designed for high-accuracy non-contact temperature measurement in space-constrained, thermally dynamic environments - targeting automotive, healthcare, and smart appliance applications.

FAQ

What is the operating voltage range for MLX90614ESF-BBA-000-TU?

The MLX90614ESF-BBA-000-TU operates from 2.6 V to 3.6 V, making it compatible with 3.0 V battery-powered or low-voltage regulated systems. Its POR circuit activates reliably between 1.3 V and 1.95 V, ensuring robust startup across temperature extremes. This variant does not support 5.0 V or higher supply voltages - those require Axx-series parts with external zener clamping.

Does MLX90614ESF-BBA-000-TU support sleep mode?

Yes, MLX90614ESF-BBA-000-TU supports sleep mode with typical current draw of 2–6 µA, enabled via SMBus command to Configuration Register 1. Sleep mode is exclusive to 3.0 V Bxx variants like this one and is not available on 5.0 V Axx versions. Wake-up occurs automatically on SMBus activity or SDA low pulse lasting ≥33 ms.

How is emissivity configured on MLX90614ESF-BBA-000-TU?

Emissivity is stored in EEPROM address 0x04 as a 16-bit value representing ε × 65535 (e.g., ε = 0.95 → 0xF5C8). It is written via SMBus using the Write EEPROM command and requires erase-before-write. The factory default is 1.0 (0xFFFF), and values from 0.1 to 1.0 are supported - enabling accurate measurements on diverse surfaces without physical recalibration.

What optical filter is used in MLX90614ESF-BBA-000-TU?

MLX90614ESF-BBA-000-TU incorporates an integrated long-wave pass optical filter transmitting 5.5 µm to 14 µm radiation, blocking visible and near-IR light. This design ensures immunity to ambient light and solar loading - critical for outdoor or brightly lit indoor deployments. Unlike xCH/xCI variants, it does not use uncoated silicon lenses.

Can MLX90614ESF-BBA-000-TU be used for medical-grade temperature measurement?

MLX90614ESF-BBA-000-TU achieves ±0.5°C accuracy from 0°C to +50°C under isothermal conditions and supports medical-grade configurations via factory options (e.g., MLX90614ESF-BAA-000-TU with ±0.2°C). While this specific variant is rated for standard accuracy, its 0.02°C SMBus resolution, emissivity tuning, and thermal gradient compensation make it suitable for Class IIa medical device subsystems when validated per IEC 60601-2-59.

MLX90614ESF-BBA-000-TU Specifications

Product attributes: Attribute value

Manufacturer:: Melexis Technologies NV

Series:: -

Package/Case:: TO-39-4 Metal Can

Packaging:: Tube

Product Status:: Active

Sensor Type:: Digital, Infrared (IR)

Sensing Temperature - Local:: -40°C ~ 85°C

Sensing Temperature - Remote:: -70°C ~ 380°C (IR)

Output Type:: PWM, SMBus

Voltage - Supply:: 2.6V ~ 3.6V

Resolution:: 16 b

Features:: Sleep Mode

Accuracy - Highest (Lowest):: ±0.5°C (±4°C)

Test Condition:: 0°C ~ 60°C (120°C ~ 380°C)

Operating Temperature:: -40°C ~ 85°C

Mounting Type:: Through Hole

Grade:: -

Qualification:: -

Supplier Device Package:: TO-39

MLX90614ESF-BBA-000-TU FAQ

1.How can I place an order for MLX90614ESF-BBA-000-TU through Aetrix?

Please submit a Request for Quotation (RFQ) for MLX90614ESF-BBA-000-TU on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for MLX90614ESF-BBA-000-TU reliable?

The price and inventory of MLX90614ESF-BBA-000-TU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MLX90614ESF-BBA-000-TU is usually 5 days.

3.What payment methods are accepted for MLX90614ESF-BBA-000-TU?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MLX90614ESF-BBA-000-TU transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MLX90614ESF-BBA-000-TU?

MLX90614ESF-BBA-000-TU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MLX90614ESF-BBA-000-TU order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for MLX90614ESF-BBA-000-TU?

For technical support, including MLX90614ESF-BBA-000-TU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MLX90614ESF-BBA-000-TU requirements.

6.How does Aetrix verify that MLX90614ESF-BBA-000-TU is sourced from the original manufacturer or authorized distributors?

All MLX90614ESF-BBA-000-TU products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MLX90614ESF-BBA-000-TU meets industry standards.

7.What is the process for return or replacement of MLX90614ESF-BBA-000-TU?

All MLX90614ESF-BBA-000-TU units undergo pre-shipment inspection (PSI). If there is an issue with MLX90614ESF-BBA-000-TU, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The MLX90614ESF-BBA-000-TU part is unused and in its original packaging.

Return procedure for MLX90614ESF-BBA-000-TU:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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