NMT1272SC: DC - DC converter NMT, 3 W, Vin 12 V, Vout -24 - -48 - -72 V, SIL at reichelt elektronik
Adam-4520 Schnittstellen-Wandler 12 V / Dc, 24 48 V / Dc | eBay
Amazon.com: DC to DC Converter Step Down, dc dc wandler Transformer Voltage Reducer Input 48V-120V Output 12V -15 A/ 180W Power Regulator for Electric VehicleCart Club Car Scooter Bicylce and More :
Amazon.com: DC-DC Buck Converter 12V/24V to 5V 3A Step Down Power Module Adjustable Voltage Regulator Stable Performance : Electronics
Vitesco Technologies - High Voltage DC/DC Converter - 4th Generation