High-reliability discrete products
and engineering services since 1977
FEATURES
1N2970-1N3015B,
1N3993-1N4000A
10 WATT ZENER DIODES
Available as “HR” (high reliability) screened per MIL-PRF-19500, JANTX level. Add “HR” suffix to base part number.
Available as non-RoHS (Sn/Pb plating), standard, and as RoHS by adding “-PBF” suffix.
MAXIMUM RATINGS
Parameter
Junction temperature
Storage temperature
DC power dissipation
Power derating
Forward voltage
Thermal resistance
Solder temperature
-65°C to +175°C
-65°C to +200°C
10 watts
80 mW/°C above 50°C
@ 2.0 A: 1.5 volts
10°C/W (typical) junction to case (stud)
260°C for 10 s (max)
Value
ELECTRICAL CHARACTERISTICS
(T
A
= 25°C unless otherwise specified)
Part
number
(note 1)
Nominal
zener
voltage
V
Z
@ I
ZT
(note 2)
Max. dynamic impedance
(note 3)
Max DC
zener
current (I
ZM
)
@ 75°C stud
temp
(note 4)
mA
2380
2130
1940
1780
1620
1460
1330
1210
1320
1180
1040
960
860
780
720
660
600
560
Typical
temp.
coefficient
α
VZ
Zener test
current
(I
ZT
)
Max. reverse
current
I
R
@ V
R
Polarity
Volts
1N3993A
1N3994A
1N3995A
1N3996A
1N3997A
1N3998A
1N3999A
1N4000A
1N2970B
1N2971B
1N2972B
1N2973B
1N2974B
1N2975B
1N2976B
1N2977B
1N2978B
1N2979B
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
mA
640
580
530
490
445
405
370
335
370
335
305
275
250
230
210
190
180
170
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
Z
ZK
@ 1mA
(I
ZK
)
ohms
400
400
500
550
600
750
500
250
500
250
250
250
250
250
250
250
250
250
%/°C
-.046
-.033
-.015
+/-.010
+.030
+.049
+.040
+.045
.040
.045
.048
.051
.055
.060
.065
.065
.070
.070
µA
100
100
50
10
10
10
10
10
150
100
50
25
25
10
10
10
10
10
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
Standard
polarity
anode to
stud
Standard
polarity
cathode to
stud
Rev. 20150317
High-reliability discrete products
and engineering services since 1977
1N2970-1N3015B,
1N3993-1N4000A
10 WATT ZENER DIODES
Max DC
zener
current (I
ZM
)
@ 75°C stud
temp
(note 4)
mA
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
Max. dynamic impedance
(note 3)
Typical
temp.
coefficient
α
VZ
Max. reverse
current
I
R
@ V
R
ELECTRICAL CHARACTERISTICS
(T
A
= 25°C unless otherwise specified)
Part
number
(note 1)
Nominal
zener
voltage
V
Z
@ I
ZT
(note 2)
Zener test
current
(I
ZT
)
Polarity
Volts
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
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
mA
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
Z
ZT
@ I
ZT
ohms
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
Z
ZK
@ 1mA
(I
ZK
)
ohms
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
%/°C
.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
µA
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
Volts
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
Standard
polarity
anode to
stud
Rev. 20150317
High-reliability discrete products
and engineering services since 1977
1N2970-1N3015B,
1N3993-1N4000A
10 WATT ZENER DIODES
Max DC
zener
current (I
ZM
)
@ 75°C stud
temp
(note 4)
mA
54
50
46
45
40
Max. dynamic impedance
(note 3)
Typical
temp.
coefficient
α
VZ
Max. reverse
current
I
R
@ V
R
Part
number
(note 1)
Nominal
zener
voltage
V
Z
@ I
ZT
(note 2)
Zener test
current
(I
ZT
)
Polarity
Volts
1N3011B
1N3012B
1N3013B
1N3014B
1N3015B
150
160
175
180
200
mA
17
16
14
14
12
Z
ZT
@ I
ZT
ohms
175
200
250
260
300
Z
ZK
@ 1mA
(I
ZK
)
ohms
1500
1600
1750
1850
2000
%/°C
.095
.095
.095
.095
.100
µA
10
10
10
10
10
Volts
114.0
121.6
135.0
136.8
152.0
Standard
polarity
anode to
stud
Note 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, suffix C indicates +/-2% tolerance, suffix D
indicates +/-1% tolerance.
Note 2: The electrical characteristics are measured after allowing the device to stabilize for 90 seconds with 30°C base temperature
Note 3: The Zener impedance (Z
ZT
) 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
(I
ZT
or I
ZK
) is superimposed on I
ZT
or I
ZK.
When making Zener impedance measurements at the I
ZK
test point, it may be necessary to insert a 60 Hz band pass filter
between the diode and the voltmeter to avoid errors resulting from low level noise signals.
Note 4: These values of I
ZM
may be exceeded in the case of the 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 V
ZT,
which results from Zener impedance and the
increase in junction temperature as power dissipation approaches 10 watts.
MECHANICAL CHARACTERISTICS
Case
Marking
Polarity
DO-4
Alpha-numeric
Anode to stud (1N2970-1N3015)
Cathode to stud (1N3993-1N4000)
DO-4
Inches
Min
Max
-
0.078
0.422 0.453
-
0.405
-
0.800
0.420 0.440
-
0.250
-
0.424
0.066
-
Millimeters
Min
Max
-
1.981
10.719 11.506
-
10.287
-
20.320
10.668 11.176
-
6.350
-
10.770
1.676
-
A
B
C
D
E
F
G
H
Rev. 20150317
High-reliability discrete products
and engineering services since 1977
MECHANICAL CHARACTERISTICS
Case
Marking
Polarity
DO-4R
Alpha-numeric
Cathode to stud (1N2970-1N3015)
Anode to stud (1N3993-1N4000)
1N2970-1N3015B,
1N3993-1N4000A
10 WATT ZENER DIODES
DO-4R
Inches
Min
Max
-
0.078
0.422 0.453
-
0.405
-
0.800
0.420 0.440
-
0.250
-
0.424
0.066
-
Millimeters
Min
Max
-
1.981
10.719 11.506
-
10.287
-
20.320
10.668 11.176
-
6.350
-
10.770
1.676
-
A
B
C
D
E
F
G
H
Rev. 20150317
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