Melexis Technologies NV MLX90614KSF-ACC-000-SP

Overview

MLX90614KSF-ACC-000-SP from Melexis is a factory-calibrated, single-zone infrared thermometer IC in TO-39 metal can package, delivering ±0.5°C accuracy for ambient (–40°C to +125°C) and object (–70°C to +380°C) temperatures, with 0.02°C measurement resolution in SMBus mode and 10-bit PWM output, used in automotive blind-angle detection, thermal comfort control, and medical-grade body temperature sensing.

For engineers reviewing the MLX90614KSF-ACC-000-SP datasheet, pinout, applications, or equivalent options, this page provides verified technical context, exact pin functions, real-world application cards, and two confirmed alternative parts with documented functional and application differences.

Technical Context

The MLX90614KSF-ACC-000-SP integrates a thermopile IR detector and signal-conditioning ASSP in one TO-39 package, featuring a low-noise chopper amplifier, 17-bit sigma-delta ADC, and on-chip DSP for ambient (Ta) and object (To) temperature computation. It supports SMBus communication at 10–100 kHz and configurable 10-bit PWM output with 1.024 ms period.

Factory calibration covers Ta from –40°C to +125°C and To from –70°C to +380°C; accuracy of ±0.5°C applies at 0°C to +50°C for both Ta and To under isothermal conditions. The device uses internal EEPROM (32×16-bit) for user-programmable emissivity (0.1–1.0), temperature ranges, and SMBus address - no black-body recalibration required.

Key Specifications

Pinout & Package

MLX90614KSF-ACC-000-SP uses the industry-standard 4-pin TO-39 metal can package (diameter 4.8 mm, height 5.5 mm), with hermetically sealed IR window and integrated long-wave pass optical filter (5.5 µm–14 µm). The metal can must connect to VSS only; no other electrical connection is permitted.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MLX90614ESF-ACC-000-TU, the MLX90614KSF-ACC-000-SP adds +40°C ambient operating margin critical for automotive and industrial deployments; versus AMG8833, it trades pixel-level imaging for higher accuracy, simpler interface, and deterministic single-point output essential in closed-loop control.

Availability

MLX90614KSF-ACC-000-SP is available at Aetrix Electronics and suitable for automotive blind-angle detection, medical body temperature screening, and industrial moving-part monitoring requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for MLX90614KSF-ACC-000-SP 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 for automotive and industrial markets.

The MLX90614 product line delivers factory-calibrated, single- and dual-zone IR thermometers optimized for non-contact temperature measurement in space-constrained, thermally demanding applications such as automotive climate control and medical diagnostics.

FAQ

What is the maximum object temperature measurable by the MLX90614KSF-ACC-000-SP?

The MLX90614KSF-ACC-000-SP supports object temperature measurement from –70°C to +380°C. This range is enabled by its thermopile detector and on-chip DSP calibration, making it suitable for industrial heating processes and automotive exhaust proximity sensing. The full range is valid across the device's ambient operating temperature of –40°C to +125°C.

Does the MLX90614KSF-ACC-000-SP support sleep mode to reduce power consumption?

No, the MLX90614KSF-ACC-000-SP does not support sleep mode. Sleep mode is only available on the 3.0 V supply variants (MLX90614Bxx); the MLX90614KSF-ACC-000-SP is a 5.0 V variant (Axx type) with typical current draw of 1.3 mA and no low-power state. For ultra-low-power applications, consider MLX90614BSF-ACC-000-TU instead.

Can the MLX90614KSF-ACC-000-SP be used in direct sunlight without optical interference?

Yes, the MLX90614KSF-ACC-000-SP incorporates an integrated long-wave pass optical filter (5.5 µm–14 µm) that blocks visible and near-infrared radiation, providing immunity to direct sunlight and artificial lighting. This ensures stable object temperature readings even in outdoor or brightly lit indoor environments where unfiltered sensors would saturate or drift.

How is emissivity configured on the MLX90614KSF-ACC-000-SP?

Emissivity is configured via the 16-bit EEPROM register at address 0x04. The value is calculated as dec2hex[round(65535 × ε)], where ε is the target material emissivity (0.1–1.0). No black-body recalibration is needed - the factory calibration remains valid. Writing requires first erasing the cell (writing 0x0000), then writing the new value, using standard SMBus commands per Section 4.1.3.3 of the datasheet.

Is the MLX90614KSF-ACC-000-SP pin-compatible with other MLX90614 variants in TO-39 package?

Yes, all MLX90614 variants in SF (TO-39) package - including MLX90614ESF-ACC-000-TU, MLX90614KSF-BCC-000-TU, and MLX90614KSF-ACC-000-SP - share identical 4-pin TO-39 footprint, pin numbering, and mechanical dimensions. Electrical compatibility depends on supply voltage (Axx vs. Bxx) and ambient temperature grade (E vs. K), but PCB layout and soldering process remain unchanged across SF variants.