DESCRIPTION
The popular 1N821 thru 1N829A series of Zero-TC Reference Diodes provides a selection of both 6.2 V and 6.55 V nominal voltages and temperature coefficients to as low as 0.0005%/oC for minimal voltage change with temperature when operated at 7.5 mA. These glass axialleaded DO-35 reference diodes are optionally available with an internalmetallurgical-bond by adding a “-1” suffix. This type of bonded Zener package construction is also available in JAN, JANTX, and JANTXV military qualifications. Microsemi also offers numerous other Zener Reference Diode products for a variety of other voltages up to 200 V.

FEATURES
• JEDEC registered 1N821 thru 1N829 series
• Internal metallurgical bond option available by adding a “-1” suffix
• Reference voltage selection of 6.2 V & 6.55 V +/-5% with further tight tolerance options at lower voltage
• 1N821, 823, 825, 827 and 829 also have qualification to MIL-PRF-19500/159 by adding the JAN, JANTX, or JANTXV prefixes to part numbers a well as the “-1” suffix; e.g. JANTX1N829-1, etc.
• Military surface mount equivalents also available in DO-213AA by adding UR-1 suffix and the JAN, JANTX, and JANTXV prefix, e.g. JANTX1N829UR-1 (see separate data sheet)
• Also available in DO-7 package including military qualifications up to JANS (see separate data sheet)
• JANS equivalent available in DO-35 via SCD

APPLICATIONS / BENEFITS
• Provides minimal voltage changes over a broad temperature range
• For instrumentation and other circuit designs requiring a stable voltage reference
• Maximum temperature coefficient selections available from 0.01%/ºC to 0.0005%/ºC
• Tight reference voltage tolerances available with center nominal value of 6.15 V by adding designated tolerance such as 1%, 2%, 3%, etc. after the part number for identification e.g. 1N827-2%, 1N829A-1-1%, 1N829-1-1%, etc.
• Flexible axial-lead mounting terminals
• Nonsensitive to ESD per MIL-STD-750 Method 1020
• Typical low capacitance of 100 pF or less