We report on the development of a new family of SQUID current sensors based on submicron cross-type Josephson tunnel junctions. Their low total junction capacitance permit high usable voltage swings of more than 100 µV and exceptional low noise of the SQUIDs at 4.2 K. Integrated rf-filter as well as high tolerable background fields during cool-down of up to 9.6 mT enable their highly reliable and easy use. With input coil inductances varying between 10 nH and 2.8 µH and current sensitivities and coupled energy resolution down to about 65 fA/Hz1/2 and below 10 h, respectively, they are a versatile tool for numerous applications.