1N2970-1N3015B,
1N3993-1N4000A
High-reliability discrete products
and engineering services since 1977
10 WATT ZENER DIODES
FEATURES
 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 (TA = 25°C unless otherwise specified)
Part
number
(note 1)
Nominal
zener
voltage
VZ @ IZT
(note 2)
Zener test
current
(IZT)
Max. dynamic impedance
(note 3)
Max DC
zener
current (IZM)
@ 75°C stud
temp
(note 4)
1N3993A
1N3994A
1N3995A
1N3996A
1N3997A
1N3998A
1N3999A
1N4000A
1N2970B
1N2971B
1N2972B
1N2973B
1N2974B
1N2975B
1N2976B
1N2977B
1N2978B
1N2979B
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
mA
ZZT @ IZT
ohms
ZZK @ 1mA
(IZK)
ohms
640 2.0
400
580 1.5
400
530 1.2
500
490 1.1
550
445 1.0
600
405 1.1
750
370 1.2
500
335 1.3
250
370 1.2
500
335 1.3
250
305 1.5
250
275 2.0
250
250 3
250
230 3
250
210 3
250
190 3
250
180 3
250
170 3
250
mA
2380
2130
1940
1780
1620
1460
1330
1210
1320
1180
1040
960
860
780
720
660
600
560
Typical
temp.
coefficient
αVZ
%/°C
-.046
-.033
-.015
+/-.010
+.030
+.049
+.040
+.045
.040
.045
.048
.051
.055
.060
.065
.065
.070
.070
Max. reverse
current
IR @ VR
µA Volts
100 0.5
100 0.5
50 1.0
10 1.0
10 1.0
10 2.0
10 2.0
10 3.0
150 5.2
100 5.7
50 6.2
25 6.9
25 7.6
10 8.4
10 9.1
10 9.9
10 10.5
10 11.4
Polarity
Standard
polarity
cathode to
stud
Standard
polarity
anode to
stud
Rev. 20150317
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High-reliability discrete products
and engineering services since 1977
1N2970-1N3015B,
1N3993-1N4000A
10 WATT ZENER DIODES
Rev. 20150317

5 Page