OVE EN IEC 60539-2:2021 Directly heated negative temperature coefficient thermistors - Part 2: Sectional specification - Surface mount negative temperature coefficient thermistors (german version)
OEVE/OENORM EN 60539-2-2011-05OVE EN IEC 60539-2-2018-09
OVE EN IEC 60539-2:2021 history
2021OVE EN IEC 60539-2:2021 Directly heated negative temperature coefficient thermistors - Part 2: Sectional specification - Surface mount negative temperature coefficient thermistors (german version)