1N4678 thru 1N4717-1 DO-7
500 mW AXIAL-LEADED ZENER DIODES
SCOTTSDALE DIVISION
DESCRIPTION
The 1N4678 thru 1N4717 series of 0.5 watt Zener Voltage Regulators
provides a selection from 1.8 to 43 volts in standard 5% tolerances as well
as tighter tolerances identified by different suffix letters on the part number.
These glass axial-leaded DO-7 Zeners also have an internal-metallurgical-
bond similar to other military requirements for these packages. Microsemi
also offers numerous other Zener products to meet higher and lower power
applications.
IMPORTANT:
For the most current data, consult
MICROSEMI’s
website:
http://www.microsemi.com
APPEARANCE
WWW .
Microsemi
.C
OM
DO-7
(DO-204AA)
FEATURES
•
•
•
JEDEC registered 1N4678 thru 1N4717
Internally solder bonded
Options for screening in accordance with MIL-PRF-
19500 for JAN, JANTX, JANTXV, and JANS are
available by adding MQ, MX, MV, or MSP prefixes
respectively to part numbers as well as “-1” suffix
Surface Mount available in DO-213AA package
outline by adding a UR or UR-1 (see separate data
sheet for 1N4678UR thru 1N4717UR-1)
DO-35 glass body axial-leaded Zener equivalents
are also available (see separate data sheet)
•
•
•
•
•
•
•
•
•
APPLICATIONS / BENEFITS
Regulates voltage over a broad operating
current and temperature range
Guaranteed maximum voltage regulation 10 µA to
100 µA
Voltage selection from 1.8 to 43 V
Standard voltage tolerances are plus/minus 5%
with no suffix
Tight tolerances available in plus or minus 2%
or 1% with C or D suffix respectively
Flexible axial-lead mounting terminals
Nonsensitive to ESD per MIL-STD-750 Method 1020
Capacitance also specified (see Figure 3)
Inherently radiation hard as described in Microsemi
MicroNote 050
•
•
MAXIMUM RATINGS
•
•
Operating and Storage temperature: -65
º
C to
+175
º
C
Thermal Resistance: 300
º
C/W junction to lead at
3/8 (10 mm) lead length from body, or 360
º
C/W
junction to ambient when mounted on FR4 PC board
(1 oz Cu) with 4 mm
2
copper pads and track width 1
mm, length 25 mm
Steady-State Power: 0.5 watts at T
L
< 25
o
C 3/8 inch
(10 mm) from body or 0.417 W at T
A
< 25
º
C when
mounted on FR4 PC board as described for thermal
resistance (see Figure 2 for derating)
Forward voltage @200 mA: 1.1 volts (maximum)
Solder Temperatures: 260
º
C for 10 s (max)
MECHANICAL AND PACKAGING
•
•
•
CASE: Hermetically sealed axial-lead glass DO-7
(DO-204AA) package
TERMINALS: Leads, tin-lead plated solderable per
MIL-STD-750, method 2026
POLARITY: Cathode indicated by band where
diode is to be operated with the banded end positive
with respect to the opposite end for Zener regulation
MARKING: Part number
TAPE & REEL option: Standard per EIA-296 (add
“TR” suffix to part number)
WEIGHT: 0.2 grams
See package dimensions on last page
•
•
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•
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1N4678 – 1N4717-1
4678 – 1N4717-1
•
•
Copyright
2003
11-05-2003 REV A
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 1
1N4678 thru 1N4717-1 DO-7
500 mW AXIAL-LEADED ZENER DIODES
SCOTTSDALE DIVISION
*ELECTRICAL CHARACTERISTICS @ 25ºC
JEDEC
NOMINAL
ZENER
MAXIMUM
TYPE
ZENER
TEST
VOLTAGE
NUMBER
VOLTAGE
CURRENT
REGULATION
(Note 3)
(Note 2 & 3)
(Note 1)
V
Z
I
ZT
∆
V
Z
VOLTS
VOLTS
µA
1N4678
1N4679
1N4680
1N4681
1N4682
1N4683
1N4684
1N4685
1N4686
1N4687
1N4688
1N4689
1N4690
1N4691
1N4692
1N4693
1N4694
1N4695
1N4696
1N4697
1N4698
1N4699
1N4700
1N4701
1N4702
1N4703
1N4704
1N4705
1N4706
1N4707
1N4708
1N4709
1N4710
1N4711
1N4712
1N4713
1N4714
1N4715
1N4716
1N4717
NOTES:
1.
2.
3.
WWW .
Microsemi
.C
OM
MAXIMUM REVERSE
LEAKAGE CURRENT
I
R
µA
7.5
5.0
4.0
2.0
1.0
0.8
7.5
7.5
5.0
4.0
10.0
10.0
10.0
10.0
10.0
10.0
1.0
1.0
1.0
1.0
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
MAXIMUM
DC ZENER
CURRENT*
I
ZM
mA
240
220
200
190
180
170
160
150
140
130
120
110
100
90
70
63.6
58.0
54.8
52.4
49.6
43.2
40.8
38.0
35.0
32.6
30.8
29.0
26.4
25.0
23.8
21.6
19.8
19.0
17.6
17.0
15.8
14.4
13.2
12.2
11.0
@ V
R
VOLTS
1.0
1.0
1.0
1.0
1.0
1.0
1.5
2.0
2.0
2.0
3.0
3.0
4.0
5.0
5.1
5.7
6.2
6.6
6.9
7.6
8.4
9.1
9.8
10.6
11.4
12.1
12.9
13.6
14.4
15.2
16.7
18.2
19.0
20.4
21.2
22.8
25.0
27.3
29.6
32.6
1.8
2.0
2.2
2.4
2.7
3.0
3.3
3.6
3.9
4.3
4.7
5.1
5.6
6.2
6.8
7.5
8.2
8.7
9.1
10.0
11.0
12.0
13.0
14.0
15.0
16.0
17.0
18.0
19.0
20.0
22.0
24.0
25.0
27.0
28.0
30.0
33.0
36.0
39.0
43.0
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
0.70
0.70
0.75
0.80
0.85
0.90
0.95
0.95
0.97
0.99
0.99
0.97
0.96
0.95
0.90
0.75
0.50
0.10
0.08
0.10
0.11
0.12
0.13
0.14
0.15
0.16
0.17
0.18
0.19
0.20
0.22
0.24
0.25
0.27
0.28
0.30
0.33
0.36
0.39
0.43
1N4678 – 1N4717-1
*JEDEC registered data except I
ZM
has been increased (doubled) for 500 mW power dissipation capabilities
All types as shown are +/-5% tolerance. Also available in 2% and 1% tolerance by adding suffix C and D respectively.
∆
V
Z
@ 100µA minus
V
Z
@ 10µA.
The electrical characteristics are measured after allowing the device to stabilize for 20 seconds when mounted with 3/8”
minimum lead length from the base.
Copyright
2003
11-05-2003 REV A
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 2
1N4678 thru 1N4717-1 DO-7
500 mW AXIAL-LEADED ZENER DIODES
SCOTTSDALE DIVISION
GRAPHS
TEMPERATURE COEFFICIENT mV/ C
WWW .
Microsemi
.C
OM
TEMPERATURE COEFFICIENT %/ C
RATED POWER DISSIPATION - mW
o
Voltage Temperature
o
Coefficient %/ C
mV Change /ºC
o
T
L
– LEAD TEMPERATURE ( C) 3/8” FROM BODY or
T
A
on FR4 PC BOARD
o
NOMINAL ZENER VOLTAGE (VOLTS)
FIGURE 1
POWER DERATING CURVE
FIGURE 2
ZENER VOLTAGE TEMPERATURE
COEFFICIENT vs. ZENER VOLTAGE
DO-7 PACKAGE DIMENSIONS
Typical Capacitance in PicoFarads
1N4678 – 1N4717-1
4678 – 1N4717-1
FIGURE 3
CAPACITANCE vs. V
Z
CURVE
ZENER VOLTAGE V
Z
All dimensions in: INCH
mm
Copyright
2003
11-05-2003 REV A
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 3
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