TECHNICAL DATA SHEET
6 Lake Street, Lawrence, MA 01841
1-800-446-1158 / (978) 620-2600 / Fax: (978) 689-0803
Website: http: //www.microsemi.com
10 WATT ZENER DIODES
Qualified per MIL-PRF-19500/124
DEVICES
LEVELS
1N2970 thru 1N3015B
and
1N3993 thru 1N4000A
DESCRIPTION
These high power 10 W Zener diodes represented by the JEDEC registered
1N2970 thru 1N3015B and 1N3993 thru 1N4000A series provide voltage
regulation in a selection over a 3.9 V to 200 V broad range of voltages. They may
be operated up to 10 W with adequate mounting and heat sinking with their low
thermal resistance. These Zeners are also available in JAN, JANTX, JANTXV
military qualifications. Microsemi also offers numerous other Zener products to
meet higher and lower power applications.
JAN
JANTX
JANTXV
DO-4 (DO-203AA)
FEATURES
JEDEC registered 1N2970 thru 1N3015B and 1N3993 thru 1N4000A
Internal solder bond construction
Hermetically sealed (welded)
Zener Voltage 3.9V to 200V.
Also available in JAN, JANTX, and JANTXV qualifications per MIL-
PRF-19500/124 by adding the JAN, JANTX, or JANTXV prefixes to part
numbers for desired level of screening; (e.g. JANTX1N2970B,
JANTXV1N3996A, etc.
Standard polarity is anode to case (stud) for 1N2970 thru 1N3015B and
cathode to case for 1N3993 thru 1N4000A
Reverse polarity is cathode to case for 1N2970 thru 1N3015B and anode to
case for 1N3993 thru 1N4000A by designating R suffix, e.g. 1N2970RB,
1N3993RA, etc.
Consult factory for surface mount equivalents
T4-LDS-0075 Rev. 1 (082463)
Page 1 of 6
TECHNICAL DATA SHEET
6 Lake Street, Lawrence, MA 01841
1-800-446-1158 / (978) 620-2600 / Fax: (978) 689-0803
Website: http: //www.microsemi.com
10 WATT ZENER DIODES
Qualified per MIL-PRF-19500/124
APPLICATIONS / BENEFITS
Regulates voltage over a broad operating current and temperature range
Standard voltage tolerances are +/- 5% with B suffix, +/-10% with an A suffix, and +/-20% with no suffix
Consult factory for +/-2% or +/-1% voltage tolerance with a C or D suffix respectively
Reverse polarity available
Nonsensitive to ESD per MIL-STD-750 Method 1020
Inherently radiation hard as described in Microsemi MicroNote 050
MAXIMUM RATINGS
Junction Temperatures: -65
o
C to +175
o
C
Storage Temperatures: -65
o
C to +200
o
C
DC Power Dissipation: 10 Watts
Power Derating: 80 mW/
o
C above 50
o
C
Forward Voltage @ 2.0 A: 1.5 Volts
THERMAL RESISTANCE: 10
o
C/W (typical) junction to case (stud)
Solder temperatures: 260
o
C for 10 s (max)
MECHANICAL AND PACKAGING
CASE: Industry Standard DO-4, (DO-203AA), 7/16” Hex, stud with 10-32 threads, welded, hermetically
sealed metal and glass
FINISH: All external surfaces are corrosion resistant and terminal solderable
POLARITY:
by suffix “R”
1N2970 – 1N3015:
Std. Polarity is anode to stud. Reverse polarity indicated by suffix “R”
WEIGHT: 7.5 grams
MOUNTING HARDWARE: Consult factory for optional insulator, bushing solder terminal, washers, and nut
See package dimension on last page.
1N3993 – 1N4000:
Std. Polarity is cathode to stud. Reverse polarity (anode to stud) indicated
T4-LDS-0075 Rev. 1 (082463)
Page 2 of 6
TECHNICAL DATA SHEET
6 Lake Street, Lawrence, MA 01841
1-800-446-1158 / (978) 620-2600 / Fax: (978) 689-0803
Website: http: //www.microsemi.com
10 WATT ZENER DIODES
Qualified per MIL-PRF-19500/124
ELECTRICAL CHARACTERISTICS @ 30°C Case Temperature
JEDEC
TYPE NO.
(Note 1)
NOMINAL
ZENER
VOLTAGE
V
Z
@
I
ZT
(Note 2)
Volts
3.9
4.3
4.7
5.1
5.6
6.2
6.8
7.5
6.8
7.5
8.2
9.1
10
11
12
13
14
15
16
17
18
19
20
22
24
25
27
30
33
36
39
43
45
47
50
51
52
56
62
68
75
82
91
100
105
110
120
130
140
150
160
175
180
200
ZENER
TEST
CURRENT
(
I
ZT
)
mA
640
580
530
490
445
405
370
335
370
335
305
275
250
230
210
190
180
170
155
145
140
130
125
115
105
100
95
85
75
70
65
60
55
55
50
50
50
45
40
37
33
30
28
25
25
23
20
19
18
17
16
14
14
12
MAX. DYNAMIC
IMPEDANCE
(Note 3)
Z
ZK
@
1mA (I
ZK
)
OHMS
400
400
500
550
600
750
500
250
500
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
300
300
300
300
400
400
400
500
500
500
500
600
600
600
700
800
900
1000
1100
1200
1300
1400
1500
1600
1750
1850
2000
MAX. DC ZENER
CURRENT
(
I
ZM
) @ 75
o
C
Stud Temp.
(Note 4)
mA
2380
2130
1940
1780
1620
1460
1330
1210
1320
1180
1040
960
860
780
720
660
600
560
530
500
460
440
420
380
350
310
300
280
260
230
210
195
185
175
165
160
160
150
130
120
110
100
85
80
75
72
67
62
58
54
50
46
45
40
TYPICAL
TEMP.
COEFF.
α
VZ
%/
o
C
-.046
-.033
-.015
+/-.010
+.030
+.049
+.040
+.045
.040
.045
.048
.051
.055
.060
.065
.065
.070
.070
.070
.075
.075
.075
.075
.080
.080
.080
.085
.085
.085
.085
.090
.090
.090
.090
.090
.090
.090
.090
.090
.090
.090
.090
.090
.090
.095
.095
.095
.095
.095
.095
.095
.095
.095
.100
MAX**
REVERSE
CURRENT
I
R
@ V
R
μA
100
100
50
10
10
10
10
10
150
100
50
25
25
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
POLARITY
†1N3993A
†1N3994A
†1N3995A
†1N3996A
†1N3997A
†1N3998A
†1N3999A
†1N4000A
†1N2970B
†1N2971B
†1N2972B
†1N2973B
†1N2974B
†1N2975B
†1N2976B
†1N2977B
1N2978B
†1N2979B
†1N2980B
1N2981B
†1N2982B
1N2983B
†1N2984B
†1N2985B
†1N2986B
1N2987B
†1N2988B
†1N2989B
†1N2990B
†1N2991B
†1N2992B
†1N2993B
1N2994B
†1N2995B
1N2996B
†1N2997B
1N2998B
†1N3099B
†1N3000B
†1N3001B
†1N3002B
†1N3003B
†1N3004B
†1N3005B
1N3006B
†1N3007B
†1N3008B
†1N3009B
1N3010B
†1N3011B
†1N3012B
1N3013B
†1N3014B
†1N3015B
Z
ZT
@ I
ZT
OHMS
2.0
1.5
1.2
1.1
1.0
1.1
1.2
1.3
1.2
1.3
1.5
2.0
3
3
3
3
3
3
4
4
4
4
4
5
5
6
7
8
9
10
11
12
13
14
15
15
15
16
17
18
22
25
35
40
45
55
75
100
125
175
200
250
260
300
Volts
0.5
0.5
1.0
1.0
1.0
2.0
2.0
3.0
5.2
5.7
6.2
6.9
7.6
8.4
9.1
9.9
10.5
11.4
12.2
13.0
13.7
14.0
15.2
16.7
18.2
18.2
20.6
22.8
25.1
27.4
29.7
32.7
33.0
35.8
36.0
38.8
39.0
42.6
47.1
51.7
56.0
62.2
69.2
76.0
76.0
83.6
91.2
98.8
100.0
114.0
121.6
135.0
136.8
152.0
STD.
POLARITY
CATHODE
TO
STUD
STD.
POLARITY
ANODE
TO STUD
T4-LDS-0075 Rev. 1 (082463)
Page 3 of 6
TECHNICAL DATA SHEET
6 Lake Street, Lawrence, MA 01841
1-800-446-1158 / (978) 620-2600 / Fax: (978) 689-0803
Website: http: //www.microsemi.com
10 WATT ZENER DIODES
Qualified per MIL-PRF-19500/124
*
JEDEC Registered Data.
** Not JEDEC Data.
† Have JAN and JANTX Qualifications to MIL-PRF-19500/124.
See further notes on following page.
NOTES:
1.
1N3993 - 1N4000 series: suffix A indicates +/-5% tolerance, no suffix indicates +/-10% tolerance. 1N2970
– 1N3015 series: suffix B indicates +/- 5% tolerance, suffix A indicates +/-10%, no suffix indicates +/-20%
tolerance. If tighter tolerance is required, consult factory.
2.
The electrical characteristics are measured after allowing the device to stabilize for 90 seconds with 30oC
Base temperature.
3.
The zener impedance (ZZT) is derived from the 60 Hz ac voltage, which results when an ac current having an
rms value equal to 10% of the dc zener current (IZT or IZK) is superimposed on IZT or IZK. When making
zener impedance measurements at the IZK test point, it may be necessary to insert a 60 Hz band pass filter
between the diode and voltmeter to avoid errors resulting from low level noise signals. A curve showing the
variation of zener impedance vs. zener current for three representative types is shown in Figures 2 and 3.
Also see Microsemi MicroNote 202.
4.
These values of IZM may be exceeded in the case of individual diodes. The values shown are calculated for
the worst case that is a unit of +/-5% tolerance at the high voltage end of its tolerance range. Allowance has
also been made for the rise in zener voltage above VZT, which results from zener impedance and the increase
in junction temperature as power dissipation approaches 10 watts.
T4-LDS-0075 Rev. 1 (082463)
Page 4 of 6
TECHNICAL DATA SHEET
6 Lake Street, Lawrence, MA 01841
1-800-446-1158 / (978) 620-2600 / Fax: (978) 689-0803
Website: http: //www.microsemi.com
10 WATT ZENER DIODES
Qualified per MIL-PRF-19500/124
GRAPHS
Pd Rated Power Dissipation - Watts
FIGURE 1
Stud Temperature (
o
C)
Power Derating Curve
FIGURE 2
Typical Zener Impedance vs. Zener Current
For Types Shown
FIGURE 3
Typical Zener Impedance vs. Zener Current
For Types Shown
T4-LDS-0075 Rev. 1 (082463)
Page 5 of 6
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