10 WATT ZENER DIODES

S C O T T S D A L E D I V I S I O N

1N2970 thru 1N3015B

and 1N3993 thru 1N4000A

c
r
o
s
e
m

.
C

1N2

970 1

3015B

1N3

993 1

4000A

DESCRIPTION

APPEARANCE

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.

DO-4
(DO-203AA)

IMPORTANT: For the most current data, consult MICROSEMI's website:

http://www.microsemi.com

FEATURES

APPLICATIONS / BENEFITS

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

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

MECHANICAL AND PACKAGING

· Junction Temperatures: -65

C to +175

· Storage Temperatures: -65

C to +200

· DC Power Dissipation: 10 Watts
· Power Derating: 80 mW/

C above 50

· Forward Voltage @ 2.0 A: 1.5 Volts
· THERMAL RESISTANCE: 10

C/W (typical)

junction to case (stud)

· Solder temperatures: 260

C for 10 s (max)

· 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

Microsemi

Scottsdale Division

8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503

Page 1

2003

11-12-2003 REV A

10 WATT ZENER DIODES

S C O T T S D A L E D I V I S I O N

1N2970 thru 1N3015B

and 1N3993 thru 1N4000A

c
r
o
s
e
m

.
C

1N2

970 1

3015B

1N3

993 1

4000A

ELECTRICAL CHARACTERISTICS @ 30

C Case Temperature

MAX. DYNAMIC

IMPEDANCE

(Note 3)

MAX**

REVERSE

CURRENT

@ V

JEDEC

TYPE NO.

(Note 1)

NOMINAL

ZENER

VOLTAGE

(Note 2)

Volts

ZENER

TEST

CURRENT

(

)

@ I

OHMS

1mA (I

)

OHMS

MAX. DC ZENER

CURRENT

(

) @ 75

Stud Temp.

(Note 4)

TYPICAL

TEMP.

COEFF.

µA Volts

POLARITY

1N3993A
1N3994A
1N3995A
1N3996A
1N3997A
1N3998A
1N3999A
1N4000A

3.9
4.3
4.7
5.1
5.6
6.2
6.8
7.5

640
580
530
490
445
405
370
335

2.0
1.5
1.2
1.1
1.0
1.1
1.2
1.3

400
400
500
550
600
750
500
250

2380
2130
1940
1780
1620
1460
1330
1210

-.046
-.033
-.015

+/-.010

+.030
+.049
+.040
+.045

100
100

50
10
10
10
10
10

0.5
0.5
1.0
1.0
1.0
2.0
2.0
3.0

STD.

POLARITY
CATHODE

STUD

1N2970B
1N2971B
1N2972B
1N2973B
1N2974B
1N2975B

6.8
7.5
8.2
9.1

10
11

370
335
305
275
250
230

1.2
1.3
1.5
2.0

3
3

500
250
250
250
250
250

1320
1180
1040

960
860
780

.040
.045
.048
.051
.055
.060

150
100

50
25
25
10

5.2
5.7
6.2
6.9
7.6
8.4

1N2976B
1N2977B

1N2978B

1N2979B
1N2980B

1N2981B

12
13
14
15
16
17

210
190
180
170
155
145

3
3
3
3
4
4

250
250
250
250
250
250

720
660
600
560
530
500

.065
.065
.070
.070
.070
.075

10
10
10
10
10
10

9.1
9.9

10.5
11.4
12.2
13.0

1N2982B

1N2983B

1N2984B
1N2985B
1N2986B

1N2987B

18
19
20
22
24
25

140
130
125
115
105
100

4
4
4
5
5
6

250
250
250
250
250
250

460
440
420
380
350
310

.075
.075
.075
.080
.080
.080

10
10
10
10
10
10

13.7
14.0
15.2
16.7
18.2
18.2

1N2988B
1N2989B
1N2990B
1N2991B
1N2992B
1N2993B

27
30
33
36
39
43

95
85
75
70
65
60

7
8
9

10
11
12

250
300
300
300
300
400

300
280
260
230
210
195

.085
.085
.085
.085
.090
.090

10
10
10
10
10
10

20.6
22.8
25.1
27.4
29.7
32.7

1N2994B

1N2995B

1N2996B

1N2997B

1N2998B

1N3099B
1N3000B

45
47
50
51
52
56
62

55
55
50
50
50
45
40

13
14
15
15
15
16
17

400
400
500
500
500
500
600

185
175
165
160
160
150
130

.090
.090
.090
.090
.090
.090
.090

10
10
10
10
10
10
10

33.0
35.8
36.0
38.8
39.0
42.6
47.1

1N3001B
1N3002B
1N3003B
1N3004B
1N3005B

1N3006B

1N3007B

68
75
82
91

100
105
110

37
33
30
28
25
25
23

18
22
25
35
40
45
55

600
600
700
800
900

1000
1100

120
110
100

85
80
75
72

.090
.090
.090
.090
.090
.095
.095

10
10
10
10
10
10
10

51.7
56.0
62.2
69.2
76.0
76.0
83.6

1N3008B
1N3009B

1N3010B

1N3011B
1N3012B

1N3013B

1N3014B
1N3015B

120
130
140
150
160
175
180
200

20
19
18
17
16
14
14
12

100
125
175
200
250
260
300

1200
1300
1400
1500
1600
1750
1850
2000

67
62
58
54
50
46
45
40

.095
.095
.095
.095
.095
.095
.095
.100

10
10
10
10
10
10
10
10

91.2
98.8

100.0
114.0
121.6
135.0
136.8
152.0

STD.

POLARITY

ANODE

TO STUD

*JEDEC Registered Data. **Not JEDEC Data.

Have JAN and JANTX Qualifications to MIL-PRF-19500/124. See further notes on following page

Microsemi

Scottsdale Division

8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503

Page 2

2003

11-12-2003 REV A

10 WATT ZENER DIODES

S C O T T S D A L E D I V I S I O N

1N2970 thru 1N3015B

and 1N3993 thru 1N4000A

c
r
o
s
e
m

.
C

1N2

970 1

3015B

1N3

993 1

4000A

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.

The electrical characteristics are measured after allowing the device to stabilize for 90 seconds with 30

C Base temperature.

The zener impedance (Z

) 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

or I

) is superimposed on I

or I

. When making zener impedance measurements at the I

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

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

which results from zener impedance and the increase in junction temperature as power dissipation approaches 10 watts.

GRAPHS

FIGURE 1

Pd Rated Po

Dissipation -

a
tts

Stud Temperature (

Power Derating Curve

FIGURE 2

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

2003

11-12-2003 REV A

Ð­Ð»ÐµÐºÑ‚Ñ€Ð¾Ð½Ð½Ñ‹Ð¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½Ñ‚: 1N3999

ÐÐ»ÐµÐºÑ‚Ñ€Ð¾Ð½Ð½Ñ‹Ð¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½Ñ‚: 1N3999