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The VS75B-48 is a 75W AC/DC converter manufactured by TDK Corporation. Designed for off-board power applications, this unit delivers a regulated 48V output suitable for industrial and commercial equipment.
Electrical performance centers on a wide input voltage range of 85-132 VAC or 110-175 VDC. The converter maintains a hold-up time of 17 milliseconds at 100 VAC input and features temperature stability better than 0.02 percent per degree Celsius. Protection circuits include approximately 105 percent overcurrent limiting and 115 percent overvoltage clamping. Inrush current measures 30 amperes at 100 VAC startup.
Thermal and environmental ratings support operation between -10°C and 60°C, with linear derating applied above 50°C to maintain full load capacity. Storage conditions accommodate temperatures from -30°C to 85°C. The unit operates reliably in environments with 30 to 90 percent relative humidity without condensation. This configuration makes the VS75B-48 appropriate for embedded systems, control panels, and telecommunications infrastructure where compact off-board power conversion is required.
The converter operates from -10°C to 60°C, with linear derating applied to 70% load between 50°C and 60°C.
The unit accepts 85-132 VAC or 110-175 VDC input.
It provides a typical hold-up time of 17 milliseconds at 100 VAC input.
The module includes approximately 105% overcurrent protection and 115% overvoltage protection.
Inrush current measures 30 amperes when starting at 100 VAC.