Microsemi 1N3821, 1N3830A User Manual

This well established zener diode series for the 1N3821 thru 1N3830A
JEDEC registration in the glass hermetic sealed DO-13 package provides a
low voltage selection for 3.3 to 7.5 volts. It is also well suited for high­reliability applications where it is available in JAN, JANTX, and JANTXV
military qualifications. Higher voltages are also available in the 1N3016
thru 1N3051 series (6.8 V to 200 V) in the same package (see separate
data sheet). Microsemi also offers numerous other Zener diode products
for a variety of other packages including surface mount.

SCOTTSDALE DIVISION

DESCRIPTION

1N3821 thru 1N3830A

1 Watt Metal Case Zener Diodes

APPEARANCE

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Microsemi

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IMPORTANT: For the most current data, consult

MICROSEMI’s

website: http://www.microsemi.com

• Zener Voltage Range: 3.3 V to 7.5 V

• Hermetically sealed DO-13 metal package

• Internally solder-bonded construction.

• Also available in JAN, JANTX, JANTXV

qualifications per MIL-PRF19500/115 by adding the
JAN, JANTX, or JANTXV prefixes to part numbers
for desired level of screening, e.g. JANTX1N3821,
JANTXV1N3051A, etc.

• Surface mount also available with 1N3821UR-1
thru 1N30330AUR-1 series on separate data sheet

FEATURES

• Regulates voltage over a broad operating current

• Low voltage selection from 3.3 to 7.5 V

• Tight voltage tolerances available

• Low reverse (leakage) currents

• Nonsensitive to ESD

• Hermetically sealed metal package

• Inherently radiation hard as described in Microsemi

APPLICATIONS / BENEFITS

and temperature range

MicroNote 050

• Operating Junction and Storage Temperatures:

-65

• THERMAL RESISTANCE: 50
at 0.375 inches (10 mm) from body or 110
junction to ambient when leads are mounted on FR4
PC board with 4 mm2 copper pads (1 oz) and track
width 1 mm, length 25 mm

• DC Power Dissipation
(10 mm) from body or 1.0 Watts at T
mounted on FR4 PC board as described for thermal
resistance above (also see Fig 1)

• Forward Voltage @ 200 mA: 1.5 Volts.

• Solder Temperatures: 260

MAXIMUM RATINGS

o

C to +175oC

*: 1 Watt at T

o

C/W* junction to lead

o

C for 10 s (maximum)

o

C/W

< +125oC 3/8”

L

< +65oC when

L

MECHANICAL AND PACKAGING

• CASE: DO-13 (DO-202AA), welded, hermetically
sealed metal and glass

• FINISH: All external surfaces are Tin-Lead (Pb/Sn)
plated and solderable per MIL-STD-750 method
2026

• POLARITY: Cathode connected case.

• WEIGHT: 1.4 grams.

• Tape & Reel option: Standard per EIA-296 (add

“TR” suffix to part number)

• See package dimensions on last page

* For further mounting reference, thermal resistance from junction to metal case may be reduced to < 20

when mounting DO-13 metal case directly on heat sink.

DO-13

(DO-202AA)

o

C/W

1N3821 – 1N3830A

Copyright  2003
11-06-2003 REV A

Microsemi

Scottsdale Division

8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, [phone], Fax: [phone]

Page 1

SCOTTSDALE DIVISION

1N3821 thru 1N3830A

1 Watt Metal Case Zener Diodes

*ELECTRICAL CHARACTERISTICS @ 25oC

JEDEC

TYPE

NUMBER

1N3821
1N3821A
1N3822
1N3822A
1N3823
1N3823A
1N3824
1N3824A
1N3825
1N3825A
1N3826
1N3826A
1N3827
1N3827A
1N3828
1N3828A
1N3829
1N3829A
1N3830
1N3830A

*JEDEC Registered Data.

NOTES: 1. The JEDEC type numbers shown with suffix A have a standard tolerance of +/-5% on the nominal zener voltage. V
with device in thermal equilibrium in 25
consult factory.

2. The zener impedance is derived when a 60 cycle ac current having an rms value equal to 10% of the dc zener current (I
superimposed on I
eliminate unstable units. See MicroNote 202 for variation in dynamic impedance with different zener currents.

3. Allowance has been made for the increase in

NOMINAL

ZENER

VOLTAGE

@ IZT

V

Z

(Note 1)

Volts mA OHMS OHMS mA µA Volts %/

3.3

3.3

3.6

3.6

3.9

3.9

4.3

4.3

4.7

4.7

5.1

5.1

5.6

5.6

6.2

6.2

6.8

6.8

7.5

7.5

thermal equilibrium at the power dissipation of 1 watt.

ZENER

TEST

CURRENT

I

76
76
69
69
64
64
58
58
53
53
49
49
45
45
41
41
37
37
34
34

or IZK. Zener impedance is measured at 2 points to ensure a sharp knee on the breakdown curve and to

ZT

MAXIMUM ZENER IMPEDANCE

ZT

@ IZT ZZK @ I

Z

ZT

10
10
10
10

9
9
9
9
8
8
7
7
5
5
2
2

1.5

1.5

1.5

1.5

o

(Note 2)

= 1mA

ZK

400
400
400
400
400
400
400
400
500
500
550
550
600
600
700
700
500
500
250
250

C still air and mounted in test clips, ¾” from unit body. if tighter tolerance on VZ is required,

V

due to ZZ and for the increase in junction temperature as the unit approaches

Z

MAXIMUM

ZENER

CURRENT

I

ZM

(Note 3)

276
276
252
252
238
238
213
213
194
194
178
178
162
162
146
146
133
133
121
121

MAXIMUM
REVERSE
LEAKAGE
CURRENT

@ VR

I

R

100
100
100
100

50
50
10
10
10
10
10
10
10
10
10
10
10
10
10
10

1
1
1
1
1
1
1
1
1
1
1
1
2
2
3
3
3
3
3
3

GRAPHS

TYPICAL

TEMP. COEFF.

OF ZENER

VOLTAGE

α

VZ

o

C

-.066

-.066

-.058

-.058

-.046

-.046

-.033

-.033

-.015

-.015
+/-.010
+/-.010

+.030
+.030
+.049
+.049
+.053
+.053
+.057
+.057

measured

Z

or IZK) is

ZT

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TL

TA

Rated Power Dissipation (W)

1N3821 – 1N3830A

TL – Lead Temperature (oC) 3/8” from body

or TA on FR4 PC Board

Temperature Coeff. vs. Zener Voltage

FIGURE 2

FIGURE 1
Power Derating

Copyright  2003
11-06-2003 REV A

8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, [phone], Fax: [phone]

Microsemi

Scottsdale Division

Page 2