The 1N4099UR thru 1N4135UR thru 1N4627UR series of 0.5 watt glass surface mount DO-213AA Zener voltage regulators provides a selection from 1.8 to 100 volts in standard 5% tolerances as well as tighter tolerences identified by different suffix letters on the part number. These are also available with an internal-metallurgical-bond option by adding a "-1" suffix (see separate data sheet) including JAN,JANTX, and JANTXV military qualifications. Microchip also offers numerous other Zener products to meet higher and lower power applications.