The KR1157EN12B devices are a series compensating voltage regulator with a fixed output voltage of 12 V and output currents of 0.1 A. KR1157EN12B: Output voltage: 12 ± 0.48 V; Output current: 0.1 A; Input voltage: 35 V; Current instability: 0.01% / A; Voltage instability: 0.05% / V; Operating temperature range: -10 ... + 70 ° С.