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1-Wire, iButton and other Sensing Solutions

Welcome to Fuchs Elektronik, supplier of 1-Wire, iButton and other sensing/control products. Please contact us if you prefer to place your order by fax or email.

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1-Wire and iButton

The 1-Wire and iButton products combine the single-contact 1-Wire serial interface with nonvolatile memory, mixed-signal, and secure authentication functions into products that serve a broad range of applications. 1-Wire products are manufactured in traditional IC packaging. iButton products are available in a unique, robust stainless steel package.




The MFE-TEMP-HE45 provides a very rugged temperature sensor. The sensor is equipped with a DS18B20 1-Wire temperature sensor embedded into the probe. The MFE-TEMP-HE45 is directly compatible with all general purpose 1-Wire host adapters. For complete documentation on the embedded DS18B20 sensor, please refer to the manufacturer's spec sheet.

The full temperature range is supported (55 - 125°C) by both the cable and the probe. In addition cable and probe are resistant to acids, alkalis, ketones, esters, aliphatics, aromatics, and outdoor exposure.

  • Chemical resistant and waterproof
  • Very rugged construction
  • Thin cable with only three wires
  • Based on the DS18B20 1-Wire temperature sensor
  • High accuracy and resolution
  • Uses 1-Wire communication protocol
  • Compatible with most 1-Wire software
  • Made in Germany

1-Wire ConnectionRJ45 plug
CablePTFE 3.0 m
ProbeStainless Steel 50 mm
Temperature Range-35 to -105°C
Accuracy (-10 to +85ºC)±0.5°C
Accuracy (-35 to +105ºC)±2°C
Resolution (Programmable)0.0625 to 0.5°C
Supply Voltage3.0 to 5.5 Volt
Active Current1 MilliAmp
Protection RatingIP68 (EN 60529)

Pin Assignments (Front)

Pin 2+5 volts (Vdd)
Pin 41-Wire data
Pin 51-Wire return

Examples of Accessories

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