What is BS EN IEC 60539-2 - Negative temperature coefficient thermistors about ?
BS EN IEC 60539-2 is an international standard used for directly heated negative temperature coefficient thermistors. BS EN IEC 60539-2 specifies the test methods.
BS EN IEC 60539‑2 is applicable to surface mount directly heated negative temperature coefficient thermistors, typically made from transition metal oxide materials with semiconducting properties. These thermistors have metallized connecting pads or soldering strips and are intended to be mounted directly onto substrates for hybrid circuits or on to printed boards.
Who is BS EN IEC 60539-2 - Negative temperature coefficient thermistors for ?
BS EN IEC 60539-2 on directly heated negative temperature coefficient thermistors is useful for:
- Manufacturers of electronic devices
- Electrical engineers
- Manufacturers of fire alarm
Why should you use BS EN IEC 60539-2 - Negative temperature coefficient thermistors ?
A thermistor is a type of resistor whose resistance is strongly dependent on temperature more than standard resistors. This thermistor is a combination of both thermal and resistor.
Specified characteristics in BS EN IEC 60539-2 is useful in designing thermistors. The visual examination comes handy to detect the failures or errors in thermistors.
With the help of electrical characteristics, the thermistors can sustain in different climatic conditions. The quality assessment test helps in improving the quality of thermistors. The test procedures and test methods are described in BS EN IEC 60539-2 is useful in conducting the test, which result in producing good quality transistors.
What’s changed since the last update ?
BS EN IEC 60539-2:2019 supersedes BS EN 60539-2:2004+A1:2010. BS EN IEC 60539-2:2019 includes some technical changes with respect to BS EN 60539-2:2004+A1:2010. These include:
- Revision for the structure in accordance with ISO/IEC Directives, Part 2:2016 (seventh edition) to the extent practicable, and for harmonizing with IEC 60539-1:2016
- The upper category temperatures of 175 °C, 200 °C, 250 °C, 315 °C, 400 °C in Table 1 have been added
- The dimensions of 0402M in Annex A have been added