689-5191, Murata Power Solutions, Murata Power Solutions NMK DC-DC Converter, ±5V dc/ ±200mA Output, 4.5 → 5.5 V dc Input, 2W, Through Hole, +85°C Murata Power Solutions NMK DC-DC Converter, ±5V dc/ ±200mA Output, 4.5 → 5.5 V dc Input, 2W, Through Hole, +85°C