Zener Diode Chip Series
CD957B thru CD986B
Available in JANHC and JANKC per MIL-PRF-19500/117
Features
•
•
•
•
0.5 Watt capability with proper heat sinking
Electrically equivalent to IN957B thru IN986B
All junctions completely protected with silicon dioxide
Compatible with all wire bonding and die attach techniques
Maximum Ratings
Operating Temperature:
Storage Temperature:
Forward Voltage @ 200mA:
-65°C to +175°C
-65°C to +175°C
1.5 volts maximum
Electrical Specifications @ +25 ºC (Unless Otherwise Specified)
TYPE
NUMBER
NOMINAL
ZENER
VOLTAGE
VZ
(NOTE 1)
VOLTS
CD957B
CD958B
CD959B
CD960B
CD961B
CD962B
CD963B
CD964B
CD965B
CD966B
CD967B
CD968B
CD969B
CD970B
CD971B
CD972B
CD973B
CD974B
CD975B
CD976B
CD977B
CD978B
CD979B
CD980B
CD981B
CD982B
CD983B
CD984B
CD985B
CD986B
6.8
7.5
8.2
9.1
10
11
12
13
15
16
18
20
22
24
27
30
33
36
39
43
47
51
56
62
68
75
82
91
100
110
mA
18.5
16.5
15.0
14.0
12.5
11.5
10.5
9.5
8.5
7.8
7.0
6.2
5.6
5.2
4.6
4.2
3.8
3.4
3.2
3.0
2.7
2.5
2.2
2.0
1.8
1.7
1.5
1.4
1.3
1.1
ZENER
TEST
CURRENT
l ZT
MAXIMUM ZENER IMPEDANCE
(NOTE 2)
ZZT @ l ZT
OHMS
4.5
5.5
6.5
7.5
8.5
9.5
11.5
13
16
17
21
25
29
33
41
49
58
70
90
93
105
125
150
185
230
270
330
400
500
750
ZZK @ l ZK
OHMS
700
700
700
700
700
700
700
700
700
700
750
750
750
750
750
1000
1000
1000
1000
1500
1500
1500
2000
2000
2000
2000
3000
3000
3000
4000
mA
1.0
0.5
0.5
0.5
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0 .25
0.25
0.25
0.25
mA
55
50
45
41
38
32
31
28
25
24
20
18
16
15
13
12
11
10
9.5
8.8
7.9
7.4
6.8
6.0
5.5
5.0
4.6
4.1
3.7
3.3
μA
5.0
5.0
5.0
5.0
2.0
1.0
1.0
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
VOLTS
5.2
5.7
6.2
6.9
7.6
8.4
9.1
9.9
11
12
14
15
17
18
21
23
25
27
30
33
36
39
43
47
52
56
62
69
76
84
MAXIMUM DC
ZENER
CURRENT
l ZM
MAXIMUM REVERSE
LEAKAGE CURRENT
lR @ VR
NOTE 1
NOTE 2
Zener voltage range equals nominal voltage + 5% for “B” Suffix. “A” Suffix denotes + 10%, No Suffix denotes + 20%.
"C" suffix = + 2% and "D" suffix = + 1%. Zener voltage is read using a pulse measurement, 10 milliseconds maximum.
Zener impedance is derived by superimposing on IZT a 60Hz rms a.c. current equal to 10% of IZT.
1
Revision Date: 12/13/2011
New Product
CD957B thru CD986B
Outline Drawing
DESIGN DATA
METALLIZATION:
Anode
AL THICKNESS:
GOLD THICKNESS:
CHIP THICKNESS:
Top:
Back:
(Anode) Al
(Cathode) Au
25,000 Å Minimum
4,000 Å Minimum
10 Mils
CIRCUIT LAYOUT DATA: For Zener operation, cathode must be operated
positive with respect to anode.
Graphs
1000
500
400
300
200
ZENER IMPEDANCE ZZT (OHMS)
3.
3
VO
LT
27
100
VO
LT
1
5.
VO
LT
50
40
30
20
10
11
VO
LT
6.2
5
4
3
2
VO
L
T
1
.1
.2 .3 .4 .5
1
2 5
10
20
OPERATING CURRENT lZT (mA)
30 40
50
100
ZENER IMPEDANCE VS. OPERATING CURRENT
Aeroflex / Metelics, Inc.
975 Stewart Drive,
Sunnyvale, CA 94085
Tel: (408) 737-8181
Fax: (408) 733-7645
Sales: 888-641-SEMI (7364)
Hi-Rel Components
9 Hampshire Street,
Lawrence, MA 01840
Tel: (603) 641-3800
Fax: (978) 683-3264
www.aeroflex.com/metelics-hirelcomponents
54 Grenier Field Road,
Londonderry, NH 03053
Tel: (603) 641-3800
Fax: (603)-641-3500
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www.aeroflex.com/metelics
metelics-sales@aeroflex.com
Aeroflex / Metelics, Inc. reserves the right to make changes to any products and services
herein at any time without notice. Consult Aeroflex or an authorized sales representative to
verify that the information in this data sheet is current before using this product. Aeroflex
does not assume any responsibility or liability arising out of the application or use of any
product or service described herein, except as expressly agreed to in writing by Aeroflex;
nor does the purchase, lease, or use of a product or service from Aeroflex convey a license
under any patent rights, copyrights, trademark rights, or any other of the intellectual rights
of Aeroflex or of third parties.
Copyright 2011 Aeroflex / Metelics. All rights reserved.
Revision Date: 12/13/2011
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