SEMICONDUCTOR DEVICE, DIODE, SILICON, LOW LEVEL VOLTAGE-REFERENCE TYPES 1N935B-1, 1N937B-1, 1N938B-1, 1N939B-1, AND 1N940B-1, 1N935BUR-1, 1N937BUR-1, 1N938BUR-1, 1N939BUR-1, AND 1N940BUR-1, JAN, JANTX, JANTXV, JANJ, AND JANS; RADIATION HARDENED (TOTAL DOSE ONLY) TYPES JANTXVM, D, L, R, F, G, H; JANSM, D, L, R, F, G, H