23 MILS
15 MILS
15
MILS
23
MILS
ZENER DIODE CHIPS
ALL JUNCTIONS COMPLETELY PROTECTED WITH SILICON DIOXIDE
ELECTRICALLY EQUIVALENT TO 1N5221B THRU 1N5272B
0.5 WATT CAPABILITY WITH PROPER HEAT SINKING
COMPATIBLE WITH ALL WIRE BONDING AND DIE ATTACH TECHNIQUES,
WITH THE EXCEPTION OF SOLDER REFLOW
CD5221B
thru
CD5272B
DESIGN DATA
METALLIZATION:
Top: (Anode)......................Al
Back: (Cathode)................Au
AL THICKNESS..............25,000
Min
GOLD THICKNESS... .......4,000
Min
CHIP THICKNESS............. .......10 Mils
CIRCUIT LAYOUT DATA:
For Zener operation, cathode
must be operated positive with
respect to anode.
TOLERANCES: ALL
Dimensions + 2 mils
ELECTRICAL CHARACTERISTICS @ 25C, unless otherwise specified
NOMINAL
ZENER
MAXIMUM
MAXIMUM
TYPE
VOLTAGE
TEST
ZENER IMPEDANCE
REVERSE CURRENT
NUMBER
(Note 1)
CURRENT
(Note 2)
VZ @ lZT
lZT
ZZT @ lZT
ZZK@lZK=0.25mA
lR @ VR
VOLTS
mA
OHMS
OHMS
A
VOLTS
CD5221B
2.4
20
30
1200
100
1.0
CD5222B
2.5
20
30
1250
100
1.0
CD5223B
2.7
20
30
1300
75
1.0
CD5224B
2.8
20
30
1400
75
1.0
CD5225B
3.0
20
29
1600
50
1.0
CD5226B
3.3
20
28
1600
25
1.0
CD5227B
3.6
20
24
1700
15
1.0
CD5228B
3.9
20
23
1900
10
1.0
CD5229B
4.3
20
22
2000
5.0
1.0
CD5230B
4.7
20
19
1900
5.0
2.0
CD5231B
5.1
20
17
1600
5.0
2.0
CD5232B
5.6
20
11
1600
5.0
3.0
CD5233B
6.0
20
7.0
1600
5.0
3.5
CD5234B
6.2
20
7.0
1000
5.0
4.0
CD5235B
6.8
20
5.0
750
3.0
5.0
CD5236B
7.5
20
6.0
500
3.0
6.0
CD5237B
8.2
20
8.0
500
3.0
6.5
CD5238B
8.7
20
8.0
600
3.0
6.5
CD5239B
9.1
20
10
600
3.0
7.0
CD5240B
10
20
17
600
3.0
8.0
CD5241B
11
20
22
600
2.0
8.4
CD5242B
12
20
30
600
1.0
9.1
CD5243B
13
9.5
13
600
0.5
9.9
CD5244B
14
9.0
15
600
0.1
10
CD5245B
15
8.5
16
600
0.1
11
CD5246B
16
7.8
17
600
0.1
12
CD5247B
17
7.4
19
600
0.1
13
CD5248B
18
7.0
21
600
0.1
14
CD5249B
19
6.6
23
600
0.1
14
CD5250B
20
6.2
25
600
0.1
15
CD5251B
22
5.6
29
600
0.1
17
CD5252B
24
5.2
33
600
0.1
18
CD5253B
25
5.0
35
600
0.1
19
CD5254B
27
4.6
41
600
0.1
21
CD5255B
28
4.5
44
600
0.1
21
CD5256B
30
4.2
49
600
0.1
23
CD5257B
33
3.8
58
700
0.1
25
CD5258B
36
3.4
70
700
0.1
27
CD5259B
39
3.2
80
800
0.1
30
CD5260B
43
3.0
93
900
0.1
33
CD5261B
47
2.7
105
1000
0.1
36
CD5262B
51
2.5
125
1100
0.1
39
CD5263B
56
2.2
150
1300
0.1
43
CD5264B
60
2.1
170
1400
0.1
46
CD5265B
62
2.0
185
1400
0.1
47
CD5266B
68
1.8
230
1600
0.1
52
CD5267B
75
1.7
270
1700
0.1
56
CD5268B
82
1.5
330
2000
0.1
62
CD5269B
87
1.4
370
2200
0.1
68
CD5270B
91
1.4
400
2300
0.1
69
CD5271B
100
1.3
500
2600
0.1
76
CD5272B
110
1.1
750
3000
0.1
84
BACKSIDE IS CATHODE
FIGURE 1
22 COREY STREET, MELROSE, MASSACHUSETTS 02176
PHONE (781) 665-1071
FAX (781) 665-7379
WEBSITE: http://www.cdi-diodes.com
E-mail: mail@cdi-diodes.com
MAXIMUM RATINGS
Operating Temperature: -65C to +175C
Storage Temperature: -65C to +175C
Forward Voltage @ 200 mA: 1.5 Volts maximum
NOTE 1
Zener voltage range equals
"nominal Zener voltage"
(see table) + 5%, for "B"
Suffix types. "A" Suffix denotes +
10%. No Suffix denotes + 20%.
"C" suffix = + 2% tolerance and
"D" suffix = + 1% tolerance.
NOTE 2
Zener impedance is derived by
superimposing on lZTA 60 Hz rms
a.c. current equal to 10% of lZT
NOTE 3
Zener voltage is read using a
pulse measment, 10 miliseconds
maximum.
CD5221B
thru
CD5272B
.1
.2
.5
1
2
5
10
20
50
100
OPERATING CURRENT I
ZT
(mA)
FIGURE 3
ZENER IMPEDANCE VS. OPERATING CURRENT
ZENER
IMPEDANCE
Z
ZT
(OHMS)
1000
500
400
300
200
100
50
40
30
20
10
5
4
3
2
1
5.1 VOLT
6.2 VOLT
3.3 VOLT
.1
.2 .3 .4 .5
1
2
5
10
20
30 40
50
100
OPERATING CURRENT lZT (mA)
FIGURE 3
ZENER IMPEDANCE VS. OPERATING CURRENT
1000
500
400
300
200
100
50
40
30
20
10
5
4
3
2
1
ZENER
IMPEDANCE
Z
ZT
(OHMS)
3.3
VOL
T
5.1
VOL
T
27
VOL
T
11
V
OL
T
6.2
VOL
T
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