1N829AUR-1-2%TR - Microsemi Corp.

6.2 & 6.55 Volt Temperature Compensated

Surface Mount Zener Reference Diodes

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SCOTTSDALE DIVISION

1N821UR thru 1N829AUR-1, e3

(or MLL821 thru MLL829-1, e3)

1N821UR thru

1N829AUR-1

DESCRIPTION APPEARANCE

The 1N821UR thru 1N829AUR-1 series of surface mount 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

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.

DO-213AA

IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com

FEATURES APPLIC ATIONS / BENE FITS

• Surface mount equivalent of 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 surface

mount qualification to MIL-PR F - 19500/159 by adding

the JAN, JANTX, or JANTXV prefixes to part

numbers a well as the “-1” suffix; e.g. JANTX1N829-

1, etc.

• RoHS Compliant devices avai lable by adding an e3

suffix (not applicable to military)

• Axial-leaded e quivalents also availabl e 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

• Provides minimal voltage changes over a broad

temperature range

• For instrumentation and other circuit designs

requiring a stable voltage reference

• Maximum temperature coefficient sel ection s available

from 0.01%/ºC to 0.0005%/ºC

• Tight reference voltage tolerances ava ilable 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. 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

Microsemi

Scottsdale Division Page 1

MAXIMUM RAT ING S MECHANICAL AND PACKAGING

• 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 = 7.5 mA

(less than 50 mW in dissipated power)

• Solder Temperatures: 260oC for 10 s (max)

• 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: 0.04 grams.

• See package dimensions on l ast page

7-18-2005 REV B 8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503

6.2 & 6.55 Volt Temperature Compensated

Surface Mount Zener Reference Diodes

WWW.Microsemi .COM

SCOTTSDALE DIVISION

1N821UR thru 1N829AUR-1, e3

(or MLL821 thru MLL829-1, e3)

1N821UR thru

1N829AUR-1

*ELECTRICAL CHARACTERISTICS @ 25oC, unless otherwise specified

ZENER

VOLTAGE

(Note 1 and 4)

VZ @ IZT

ZENER

TEST

CURRENT

IZT

MAXIMUM

ZENER

IMPEDANCE

(Note 2)

ZZT @ IZT

MAXIMUM

REVERSE

CURRENT

IR @ 3 V

VOLTAGE

TEMPERATURE

STABILITY

(ΔVZT MAX)

-55oC to +100oC

(Note 3 and 4)

EFFECTIVE

TEMPERATURE

COEFFICIENT

αVZ

JEDEC

TYPE NUMBER

(Notes 1, 5 & 6)

VOLTS mA OHMS μA mV %/oC

1N821UR

1N821AUR

1N822UR †

1N823UR

5.9 – 6.5

7.5

2.0

0.01

0.005

1N823AUR

1N824UR †

1N825UR

1N825AUR

5.9 – 6.5

7.5

2.0

0.005

0.002

1N826UR

1N827UR

1N827AUR

1N828UR

6.2 – 6.9

5.9 – 6.5

6.2 – 6.9

7.5

2.0

0.002

0.001

1N829UR

1N829AUR 5.9 – 6.5

5.9 – 6.5 7.5

7.5 15

10 2.0

2.0 5

5 0.0005

0.0005

*JEDEC Registered Data.

†Double Anode; electrical spe cifications apply under both bias polarities.

NOTES:

1. Add a “-1” suffix for internal metallurgical bond. When ordering devices with tighter tolerances than specified for the VZ voltage nominal

of 6.15 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.

2. Zener impedance is measured by superimposing 0.75 mA ac rms on 7.5 mA dc @ 25oC.

3. 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.

4. Voltage measurements to be performed 15 seconds after application of dc current.

5. 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.

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

Microsemi

Scottsdale Division Page 2

7-18-2005 REV B 8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503

6.2 & 6.55 Volt Temperature Compensated

Surface Mount Zener Reference Diodes

WWW.Microsemi .COM

SCOTTSDALE DIVISION

1N821UR thru 1N829AUR-1, e3

(or MLL821 thru MLL829-1, e3)

1N821UR thru

1N829AUR-1

GRAPHS

IZ – Operating Current (mA) IZ – Operating Current (mA)

Change in temperature coefficient (mV/oC)

Change in temperature coefficient (%/oC)

ΔVZ – Change in Zener Voltage (mV)

FIGURE 2 FIGURE 3

TYPICAL CHANGE OF TEMPERATURE COEFFICIENT TYPICAL CHANGE OF ZENER VOLTAGE

WITH CHANGE IN OPERATING CURRENT. 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.

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 con j unction wi th Figure 2, this cu rve can be used to

estimate total voltage regulation under conditions of both

varying temperature and current.

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 2.

At a test current of 6.0mA the change in Temperature Coefficient (TC) is

approximately –0.0006%.oC. The algebraic sum of +/-0.005%oC and –

0.0006%/oC gives the new estimated limits of +0.0044%/oC and -0.0056%/oC.

PACKAGE DIMEN SIONS

INCHES MILLIMETERS

DIM MIN MAX MIN MAX

A 0.063 0.067 1.60 1.70

B 0.130 0.146 3.30 3.70

C 0.016 0.022 0.41 0.55 PAD LAYOUT

INCHES mm

A .200 5.08

B .055 1.40

C .080 2.03

Microsemi

Scottsdale Division Page 3

7-18-2005 REV B 8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503