CYStech Electronics Corp.
Zener Diode Series
Spec. No. : C326N3
Issued Date : 2003.04.14
Revised Date : 2013.08.05
Page No. : 1/14
ZD52XXAN3
SOT-23
Thermal Characteristics
Characteristics
Total Device Dissipation FR-5 Board
TA=25°C, Derate above 25°C
Total Device Dissipation
Alumina Substrate**TA=25°C, Derate above 25°C
Thermal Resistance Junction to Ambient
Junction and Storage Temperature
Symbol
PD
PD
RθJA
Tj, Tstg
Max
225
1.8
300
2.4
417
-55 to +150
Unit
mW
mW/°C
mW
mW/°C
°C/W
°C
*FR-5 - 1.0×0.75×0.062 in. **Alumina - 0.4×0.3×0.024 in. 99.5% alumina.
Electrical Characteristic
(V
F
=0.9V Max @I
F
=10mA for all types.)
Device
ZD5221A
ZD5223A
ZD5225A
ZD5226A
ZD5227A
ZD5228A
ZD5229A
ZD5230A
ZD5231A
ZD5232A
ZD5233A
ZD5234A
ZD5235A
ZD5236A
ZD5237A
ZD5238A
ZD5239A
ZD5240A
ZD5241A
ZD5242A
ZD5243A
ZD5245A
ZD5246A
Marking
Code
18A
18C
18E
8A
8B
8C
8D
8E
8F
8G
8H
8J
8K
8L
8M
8N
8P
KF5
8R
8S
8T
8V
8W
Nom. Zener Voltage
V
Z
@I
ZT
(V)
Nom. Min Max
2.4
2.35 2.45
2.7
2.65 2.75
3.0
2.94 3.06
3.3
3.23 3.37
3.6
3.53 3.67
3.9
3.82 3.98
4.3
4.21 4.39
4.7
4.61 4.79
5.1
5.00 5.20
5.6
5.49 5.71
6.0
5.88 6.12
6.2
6.08 6.32
6.8
6.66 6.94
7.5
7.35 7.65
8.2
8.04 8.36
8.7
8.53 8.87
9.1
8.92 9.28
10
9.80 10.20
11
10.78 11.22
12
11.76 12.24
13
12.74 13.26
15
14.70 15.30
16
15.68 16.32
Max. Zener Impedance
Z
ZT
(Ω)
30
30
30
28
24
23
22
19
17
11
7.0
7.0
5.0
6.0
8.0
8.0
10
17
22
30
13
16
17
I
ZT
(mA)
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
9.5
8.5
7.8
Z
ZK
(Ω)
1200
1300
1600
1600
1700
1900
2000
1900
1600
1600
1600
1000
750
500
500
600
600
600
600
600
600
600
600
I
ZK
(mA)
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
Max. Zener
Current
I
ZM
@Ta
(mA)
188
167
150
138
126
115
106
97
89
81
76
73
67
61
55
55
50
45
41
38
35
30
28
Max. Reverse
Leakage Current
I
R
V
R
(μA)
(V)
100
1.0
1.0
75
1.0
50
1.0
25
1.0
15
1.0
10
1.0
5.0
2.0
5.0
2.0
5.0
5.0
3.0
5.0
3.5
5.0
4.0
3.0
5.0
3.0
6.0
3.0
6.5
3.0
6.5
3.0
7.0
3.0
8.0
2.0
8.4
1.0
9.1
0.5
9.9
0.1
11
0.1
12
ZD52XXAN3 series
CYStek Product Specification
CYStech Electronics Corp.
Electrical Characteristic
(Cont.)
Device
Type
Code
Nom. Zener Voltage
V
Z
@I
ZT
(V)
Nom. Min
Max
18
17.64 18.36
20
19.60 20.40
22
21.56 22.44
24
23.52 24.48
27
26.46 27.54
28
27.44 28.56
30
29.40 30.60
33
32.34 33.66
36
35.28 36.72
39
38.22 39.78
43
42.14 43.86
Max. Zener Impedance
Z
ZT
(Ω)
21
25
29
33
41
44
49
58
70
80
93
I
ZT
(mA)
7.0
6.2
5.6
5.2
5.0
4.5
4.2
3.8
3.4
3.2
3
Z
ZK
(Ω)
600
600
600
600
600
600
600
700
700
800
900
I
ZK
(mA)
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
Spec. No. : C326N3
Issued Date : 2003.04.14
Revised Date : 2013.08.05
Page No. : 2/14
Max. Zener
Current
I
ZM
@Ta
(mA)
25
23
21
19.1
16.8
16.2
15.1
13.8
12.6
11.6
10.6
Max. Reverse
Leakage Current
I
R
(μA)
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
V
R
(V)
14
15
17
18
21
21
23
25
27
30
33
ZD5248A
8Y
ZD5250A
81A
ZD5251A
81B
ZD5252A
81C
ZD5254A
81E
ZD5255A
81F
ZD5256A
81G
ZD5257A
81H
ZD5258A
81J
ZD5259A
81K
ZD5260A
81L
* The V
Z
tolerance is
±2%.
Characteristic Curves
ZD5221A Forward Current vs Forward Voltage
300
100
ZD5221A Reverse Current vs Reverse Voltage
250
Reverse Current (mA)
Forward Current (mA)
80
200
60
150
40
100
50
20
0
0
200
400
600
Forward Voltage (mV)
800
1000
0
0
500
2000
2500
1000
1500
Reverse Voltage (mV)
3000
3500
ZD5222A Forward Current vs Forward Voltage
300
100
ZD5222A Reverse Current vs Reverse Voltage
250
Forward Current (mA)
Reverse Current (mA)
80
200
60
150
40
100
20
50
0
0
200
400
600
Forward Voltage (mV)
800
1000
0
0
500
2000
2500
1000
1500
Reverse Voltage (mV)
3000
3500
ZD52XXAN3 series
CYStek Product Specification
CYStech Electronics Corp.
ZD5226A Forward Current vs Forward Voltage
350
300
Forward Current (mA)
250
200
150
100
20
50
0
0
200
400
600
800
Forward Voltage (mV)
1000
1200
0
0
1000
Reverse Current (mA)
80
100
Spec. No. : C326N3
Issued Date : 2003.04.14
Revised Date : 2013.08.05
Page No. : 3/14
ZD5226A Reverse Current vs Reverse Voltage
60
40
4000
2000
3000
Reverse Voltage (mV)
5000
6000
ZD5228A Forward Current vs Forward Voltage
350
300
Forward Current (mA)
250
200
150
100
ZD5228A Reverse Current vs Reverse Voltage
100
Reverse Current (mA)
80
60
40
20
50
0
0
200
400
600
800
Forward Voltage (mV)
1000
1200
0
0
1000
2000
3000
Reverse Voltage (mV)
4000
5000
ZD5229A Forward Current vs Forward Voltage
300
100
ZD5229A Reverse Current vs Reverse Voltage
250
Forward Current (mA)
Reverse Current (mA)
80
200
60
150
40
100
20
50
0
0
200
400
600
Forward Voltage (mV)
800
1000
0
0
1000
3000
2000
Reverse Voltage (mV)
4000
5000
ZD52XXAN3 series
CYStek Product Specification
CYStech Electronics Corp.
ZD5230A Forward Current vs Forward Voltage
300
100
Spec. No. : C326N3
Issued Date : 2003.04.14
Revised Date : 2013.08.05
Page No. : 4/14
ZD5230A Reverse Current vs Reverse Voltage
250
Forward Current (mA)
Reverse Current (mA)
80
200
60
150
40
100
20
50
0
0
200
400
600
Forward Voltage (mV)
800
1000
0
1000
3000
2000
Reverse Voltage (mV)
4000
5000
0
ZD5231A Forward Current vs Forward Voltage
300
100
ZD5231A Reverse Current vs Reverse Voltage
250
Forward Current (mA)
Reverse Current (mA)
0
200
400
600
800
Forward Voltage (mV)
1000
1200
80
200
60
150
40
100
50
20
0
0
1000
2000
4000
3000
Reverse Voltage (mV)
5000
6000
ZD5232A Forward Current vs Forward Voltage
300
ZD5232B Reverse Current vs Reverse Voltage
ZD5232A Reverse Current vs Reverse Voltage
100
250
Forward Current (mA)
80
Reverse Current (mA)
0
200
400
600
800
Forward Voltage (mV)
1000
1200
200
60
150
40
100
50
20
0
0
1000
2000
3000
4000
Reverse Voltage(mV)
Z
5000
6000
ZD52XXAN3 series
CYStek Product Specification
CYStech Electronics Corp.
ZD5233A Forward Current vs Forward Voltage
ZD5233B Forward Current vs
300
100
Spec. No. : C326N3
Issued Date : 2003.04.14
Revised Date : 2013.08.05
Page No. : 5/14
ZD5233A Reverse Current vs Reverse
Voltage
ZD5233B Reverse
250
Forward Current (mA)
Reverse Current (mA)
80
200
60
150
40
100
50
20
0
0
200
400
600
800
Forward Voltage (mV)
1000
1200
0
2000
3000
5000
4000
Reverse Voltage (mV)
6000
7000
ZD5237A Forward Current vs Forward Voltage
ZD5234A Forward Current vs Forward Voltage
300
ZD5234A Reverse Current vs Reverse
Voltage
ZD5234B Reverse
100
250
Forward Current (mA)
80
Reverse Current (mA)
200
60
150
40
100
50
20
0
0
200
400
600
Forward Voltage (mV)
800
1000
0
2000
3000
5000
4000
Reverse Voltage (mV)
6000
7000
ZD5235A Forward Current vs
vs Forward Voltage
ZD5235B Forward Current
Forward Voltage
300
100
ZD5235A Reverse Current vs Reverse Voltage
ZD5235B Reverse Current vs Reverse
250
80
Reverse Current (mA)
Forward Current (mA)
200
60
150
40
100
50
20
0
0
200
400
600
800
Forward Voltage (mV)
1000
1200
0
2000
3000
4000
5000
Reverse Voltage (mV)
6000
7000
ZD52XXAN3 series
CYStek Product Specification
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