1N2970 thru 1N3015B
and 1N3993 thru 1N4000A
10 WATT ZENER DIODES
SCOTTSDALE DIVISION
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.
IMPORTANT:
For the most current data, consult
MICROSEMI’s
website:
http://www.microsemi.com
APPEARANCE
WWW .
Microsemi
.C
OM
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
•
•
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:
1N3993 – 1N4000:
Std. Polarity is
cathode to stud. Reverse polarity (anode to stud)
indicated 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
•
•
1N2970 – 1N3015B
1N3993 – 1N4000A
•
•
•
Copyright
2003
11-12-2003 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
1N2970 thru 1N3015B
and 1N3993 thru 1N4000A
10 WATT ZENER DIODES
SCOTTSDALE DIVISION
ELECTRICAL CHARACTERISTICS @ 30
o
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
o
(
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
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
%/ 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
o
WWW .
Microsemi
.C
OM
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
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
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
STD.
POLARITY
CATHODE
TO
STUD
STD.
POLARITY
ANODE
TO STUD
1N2970 – 1N3015B
1N3993 – 1N4000A
*JEDEC Registered Data. **Not JEDEC Data.
†Have JAN and JANTX Qualifications to MIL-PRF-19500/124.
Copyright
2003
11-12-2003 REV A
See further notes on following page
Page 2
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
1N2970 thru 1N3015B
and 1N3993 thru 1N4000A
10 WATT ZENER DIODES
SCOTTSDALE DIVISION
NOTES:
1.
2.
3.
4.
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.
o
The electrical characteristics are measured after allowing the device to stabilize for 90 seconds with 30 C Base temperature.
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 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.
These values of I
ZM
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 V
ZT
,
which results from zener impedance and the increase in junction temperature as power dissipation approaches 10 watts.
WWW .
Microsemi
.C
OM
GRAPHS
Pd Rated Power Dissipation - Watts
Stud Temperature ( C)
o
FIGURE 1
Power Derating Curve
1N2970 – 1N3015B
1N3993 – 1N4000A
FIGURE 2
Typical Zener Impedance vs. Zener Current
For Types Shown
Copyright
2003
11-12-2003 REV A
FIGURE 3
Typical Zener Impedance vs. Zener Current
For Types Shown
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 3
1N2970 thru 1N3015B
and 1N3993 thru 1N4000A
10 WATT ZENER DIODES
SCOTTSDALE DIVISION
PACKAGE DIMENSIONS
WWW .
Microsemi
.C
OM
10-32 UNF-2A (MOD) PITCH DIA.
MIN. .1658 MAX. .1697 TO WITH-
STAND A TORQUE UP TO 30 IN-LB.
WHEN NUT IS TIGHTENED ON STUD
All dimensions in: INCH
mm
1N2970 – 1N3015B
1N3993 – 1N4000A
Copyright
2003
11-12-2003 REV A
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 4
