Board mount 2 and 4W power supplies accept 90-305VAC inputs

27th July 2017

Anna Flockett

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Datasheet

The KAS series of wide input range, 2 and 4W encapsulated AC/DC power supplies has been announced by TDK Corporation. They can operate continuously from 90-305VAC, 47-440Hz, making them suitable for use with 115V, 230V and 277VAC nominal inputs. Additionally, having a Class II construction, no earth ground connection is required.

Input to output isolation is 3,000VAC; this makes the series suited as a low power source for a large number of applications, including building automation, security, professional household equipment and systems requiring an additional standby voltage.

The KAS is available in 8 output voltages; 3.3, 5, 8, 9, 12, 14, 15 and 24V. Off-load power consumption is less than 0.3W. The encapsulated board mount power supplies are enclosed in a UL 94V-0 rated plastic resin fibreglass case for enhanced shock and vibration performance. The 2W and 4W models measure 28.5x25.8x17mm and 37x27.5x17.5mm respectively.

The KAS2 models can operate convection cooled in ambient temperatures of -40 to 80°C, with de-rating above 60°C. The KAS4 operates from -40 to 70°C, with de-rating dependent upon output voltage.

The series has been certified to UL/CSA/IEC/EN 60950-1, is designed to meet IEC/EN 60335-1 and carries the CE mark for the Low Voltage, EMC and RoHS2 Directives. All models comply with EN 55032-B (conducted and radiated) emissions and EN 55024 immunity standards with minimal external components.