ZMM5221...ZMM5267
Silicon Planar Zener Diodes
Standard zener voltage tolerance is ± 20%. Add suffix "A"
for ± 10% tolerance, suffix "B" for ± 5% tolerance and
suffix "C" for ± 2% tolerance. Other tolerance, non
standard and higher zener voltages are upon request.
Absolute Maximum Ratings (Ta = 25 OC)
Parameter
Power Dissipation
Symbol
Ptot
Junction Temperature
Storage Temperature Range
1)
LL-34
Value
Unit
1)
mW
500
Tj
175
O
C
Tstg
- 65 to + 175
O
Symbol
Max.
C
Valid provided that electrodes are kept at ambient temperature.
Characteristics at Ta = 25 OC
Parameter
Thermal Resistance Junction to Ambient Air
Forward Voltage
at IF = 200 mA
1)
RthA
VF
0.3
1)
1.1
Unit
K/mW
V
Valid provided that electrodes are kept at ambient temperature.
®
SEMTECH
Dated : 24/12/2009 Rev: 01
ZMM5221...ZMM5267
Characteristics at Ta = 25 OC
Zener Voltage Range
Reverse Current
at lZT
ZZT
ZZK
at IZK
IR
at VR
Min. (V)
Max. (V)
(mA)
Max. (Ω)
Max. (Ω)
(mA)
Max. (µA)
(V)
ZMM5221B
2.4
2.28
2.52
20
30
1200
0.25
100
1
ZMM5222B
2.5
2.38
2.62
20
30
1250
0.25
100
1
ZMM5223B
2.7
2.57
2.83
20
30
1300
0.25
75
1
ZMM5224B
2.8
2.66
2.94
20
30
1400
0.25
75
1
ZMM5225B
3
2.85
3.15
20
29
1600
0.25
50
1
ZMM5226B
3.3
3.14
3.46
20
28
1600
0.25
25
1
ZMM5227B
3.6
3.42
3.78
20
24
1700
0.25
15
1
ZMM5228B
3.9
3.71
4.09
20
23
1900
0.25
10
1
ZMM5229B
4.3
4.09
4.51
20
22
2000
0.25
5
1
ZMM5230B
4.7
4.47
4.93
20
19
1900
0.25
5
2
ZMM5231B
5.1
4.85
5.35
20
17
1600
0.25
5
2
ZMM5232B
5.6
5.32
5.88
20
11
1600
0.25
5
3
ZMM5233B
6
5.7
6.3
20
7
1600
0.25
5
3.5
ZMM5234B
6.2
5.89
6.51
20
7
1000
0.25
5
4
ZMM5235B
6.8
6.46
7.14
20
5
750
0.25
3
5
ZMM5236B
7.5
7.13
7.87
20
6
500
0.25
3
6
ZMM5237B
8.2
7.79
8.61
20
8
500
0.25
3
6.5
ZMM5238B
8.7
8.27
9.13
20
8
600
0.25
3
6.5
ZMM5239B
9.1
8.65
9.55
20
10
600
0.25
3
7
ZMM5240B
10
9.5
10.5
20
17
600
0.25
3
8
ZMM5241B
11
10.45
11.55
20
22
600
0.25
2
8.4
ZMM5242B
12
11.4
12.6
20
30
600
0.25
1
9.1
ZMM5243B
13
12.35
13.65
9.5
13
600
0.25
0.5
9.9
ZMM5244B
14
13.3
14.7
9
15
600
0.25
0.1
10
ZMM5245B
15
14.25
15.75
8.5
16
600
0.25
0.1
11
ZMM5246B
16
15.2
16.8
7.8
17
600
0.25
0.1
12
ZMM5247B
17
16.15
17.85
7.4
19
600
0.25
0.1
13
ZMM5248B
18
17.1
18.9
7.0
21
600
0.25
0.1
14
ZMM5249B
19
18.05
19.95
6.6
23
600
0.25
0.1
14
ZMM5250B
20
19
21
6.2
25
600
0.25
0.1
15
ZMM5251B
22
20.9
23.1
5.6
29
600
0.25
0.1
17
ZMM5252B
24
22.8
25.2
5.2
33
600
0.25
0.1
18
ZMM5253B
25
23.75
26.25
5
35
600
0.25
0.1
19
ZMM5254B
27
25.65
28.35
4.6
41
600
0.25
0.1
21
ZMM5255B
28
26.6
29.4
4.4
44
600
0.25
0.1
21
ZMM5256B
30
28.5
31.5
4.2
49
600
0.25
0.1
23
ZMM5257B
33
31.35
34.65
3.8
58
700
0.25
0.1
25
ZMM5258B
36
34.2
37.8
3.4
70
700
0.25
0.1
27
ZMM5259B
39
37.05
40.95
3.2
80
800
0.25
0.1
30
ZMM5260B
43
40.85
45.15
3
93
900
0.25
0.1
33
ZMM5261B
47
44.65
49.35
2.7
105
1000
0.25
0.1
36
ZMM5262B
51
48.45
53.55
2.5
125
1100
0.25
0.1
39
ZMM5263B
56
53.2
58.8
2.2
150
1300
0.25
0.1
45
ZMM5264B
60
57
63
2.1
170
1400
0.25
0.1
46
ZMM5265B
62
58.9
65.1
2
185
1400
0.25
0.1
47
ZMM5266B
68
64.6
71.4
1.8
230
1600
0.25
0.1
52
ZMM5267B
75
71.25
78.75
1.7
270
1700
0.25
0.1
56
1)
VZT
Dynamic Resistance
(V)
Type
VZnom
1)
Tested with pulses tp = 20 ms.
®
SEMTECH
Dated : 24/12/2009 Rev: 01
ZMM5221...ZMM5267
Power Dissipation: Ptot (mW)
500
400
300
200
100
0
0
25
100
150
Ambient Temperature: Ta ( C)
200
O
Power Derating Curve
®
SEMTECH
Dated : 24/12/2009 Rev: 01
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