1N829AUR

1N829AUR Datasheet


1N821UR thru 1N829AUR-1, e3 or MLL821 thru MLL829-1, e3

Part Datasheet
1N829AUR 1N829AUR 1N829AUR (pdf)
Related Parts Information
1N821AUR 1N821AUR 1N821AUR
1N823AUR 1N823AUR 1N823AUR
1N825AUR 1N825AUR 1N825AUR
1N827AUR 1N827AUR 1N827AUR
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SCOTTSDALE DIVISION
1N821UR thru 1N829AUR-1, e3 or MLL821 thru MLL829-1, e3
& Volt Temperature Compensated Surface Mount Zener Reference Diodes
.COM

The 1N821UR thru 1N829AUR-1 series of surface mount Zero-TC Reference Diodes provides a selection of both V and V nominal voltages and temperature coefficients to as low as 0.0005%/oC for minimal voltage change with temperature when operated at mA. These glass surface mount DO-213AA MELF reference diodes are optionally available with an internal-metallurgical-bond by adding a “-1” suffix as well as RoHS Compliant with an e3 suffix. This type of bonded Zener package construction is also available in JAN, JANTX, and JANTXV military qualifications RoHS Compliant option not applicable . Microsemi also offers numerous other Zener Reference Diode products for a variety of other voltages up to 200 V.

IMPORTANT For the most current data, consult MICROSEMI’s website:

APPEARANCE DO-213AA
• Surface mount equivalent of JEDEC registered 1N821 thru 1N829 series
• Internal metallurgical bond option available by adding a “-1” suffix
• Reference voltage selection of V & V +/-5% with further tight tolerance options at lower voltage
• 1N821, 823, 825, 827 and 829 also have surface mount 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. JANTX1N8291, etc.
• RoHS Compliant devices available by adding an e3 suffix not applicable to military
• Axial-leaded equivalents also available in DO-35 or DO-7 without the UR suffix see separate data sheet including military qualifications up to JANS for DO-7 see separate data sheet
• JANS equivalent available in DO-213AA 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 V by adding designated tolerance such as 1%, 2%, 3%, etc. after the part number for identification e.g. 1N827UR-2%, 1N829AUR-1-1%, etc.
• Small surface-mount footprint
• Nonsensitive to ESD per MIL-STD-750 Method 1020
• Typical low capacitance of 100 pF or less

MAXIMUM RATINGS
• Operating Temperatures -65oC to +175oC
• Storage Temperatures -65oC to +175oC
• DC Power Dissipation 500 mW TL = 25oC and
maximum current IZM of 70 mA. NOTE For optimum voltage-temperature stability, IZ = mA less than 50 mW in dissipated power
• Solder Temperatures 260oC for 10 s max

MECHANICAL AND PACKAGING
• CASE Hermetically sealed glass case. DO-213AA package
• TERMINALS Leads, Tin-Lead military or RoHS Compliant annealed matte Tin plating solderable per MIL-STD-750, Method 2026
• MARKING Cathode band except double anode 1N822 and 1N824
• POLARITY Reference diode to be operated with the banded end positive with respect to the opposite end
• TAPE & REEL option Standard per EIA-481-B with 12 mm tape, 2000 per 7 inch reel or 5000 oer 13 inch reel add “TR” suffix to part number
• WEIGHT grams.
• See package dimensions on last page

Microsemi

Scottsdale Division 8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, 480 941-6300, Fax 480 947-1503
1N821UR thru 1N829AUR-1, e3
.COM

SCOTTSDALE DIVISION
1N821UR thru 1N829AUR-1, e3 or MLL821 thru MLL829-1, e3
& Volt Temperature Compensated Surface Mount Zener Reference Diodes
*ELECTRICAL CHARACTERISTICS 25oC, unless otherwise specified

JEDEC TYPE NUMBER Notes 1, 5 & 6

ZENER VOLTAGE Note 1 and 4
NOTES Add a “-1” suffix for internal metallurgical bond. When ordering devices with tighter tolerances than specified for the VZ voltage nominal
of V, add a further hyphened suffix number % to the part number for desired tolerance, e.g. 1N827UR-1-2%, 1N829UR-1-1%, 1N829AUR-1%, 1N829AUR-1-1%, etc. Zener impedance is measured by superimposing mA ac rms on mA dc 25oC. The maximum allowable change observed over the entire temperature range i.e., the diode voltage will not exceed the specified mV change at any discrete temperature between the established limits. Voltage measurements to be performed 15 seconds after application of dc current. 1N821UR-1, 1N823UR-1, 1N825UR-1, 1N827UR-1, and 1N829UR-1 also have qualification to MIL-PRF-19500/159 by adding the JAN,

JANTX, or JANTXV prefix to part numbers as well as the “-1” suffix e.g. JANTX1N827UR-1, JANTXV1N829UR-1, etc.

This product series has also been previously identified as the MLL821 thru MLL829A-1. This alternate name may still be used.
1N821UR thru 1N829AUR-1, e3

Microsemi

Scottsdale Division 8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, 480 941-6300, Fax 480 947-1503

SCOTTSDALE DIVISION
1N821UR thru 1N829AUR-1, e3 or MLL821 thru MLL829-1, e3
& Volt Temperature Compensated Surface Mount Zener Reference Diodes

GRAPHS

Change in temperature coefficient %/oC Change in temperature coefficient mV/oC

Change in Zener Voltage mV
.COM

IZ Operating Current mA

FIGURE 2 TYPICAL CHANGE OF TEMPERATURE COEFFICIENT

WITH CHANGE IN OPERATING CURRENT.

The curve shown in Figure 2 is typical of the diode series and greatly simplifies the estimation of the Temperature Coefficient TC when the diode is operated at currents other than 7.5mA.

EXAMPLE A diode in this series is operated at a current of 7.5mA and has specified Temperature Coefficient TC limits of +/-0.005%/oC. To obtain the typical Temperature Coefficient limits for this same diode operated at a current of 6.0mA, the new TC limits %/oC can be estimated using the graph in FIGURE At a test current of 6.0mA the change in Temperature Coefficient TC is approximately The algebraic sum of +/-0.005%oC and 0.0006%/oC gives the new estimated limits of +0.0044%/oC and -0.0056%/oC.

IZ Operating Current mA

FIGURE 3 TYPICAL CHANGE OF ZENER VOLTAGE WITH CHANGE IN OPERATING CURRENT

This curve in Figure 3 illustrates the change of diode voltage arising from the effect of impedance. It is in effect an exploded view of the zener operating region of the I-V characteristic.

In conjunction with Figure 2, this curve can be used to estimate total voltage regulation under conditions of both varying temperature and current.

PACKAGE DIMENSIONS

DIM A B C

INCHES MIN MAX

MILLIMETERS MIN MAX

PAD LAYOUT

INCHES

Microsemi

Scottsdale Division 8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, 480 941-6300, Fax 480 947-1503
1N821UR thru 1N829AUR-1, e3
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Datasheet ID: 1N829AUR 648579