ON SEMICONDUCTOR
线性稳压器, 固定, 7918, -35V输入, -18V和0.1A输出, TO-92-3
ON SEMICONDUCTOR/FAIRCHILD
线性稳压器, 固定, 7918, -33V至-22.5V输入, -18V和1A输出, TO-220AB-3
TAIWAN SEMICONDUCTOR
线性稳压器, 固定, 7918, 负向, -35V至0V输入, -18V和1A输出, TO-220-3