SMD Type
Surface Mount Zener Diodes
MMSZ5221B - MMSZ5272B
Diodes
Features
500mW Power Dissipation
Planar Die Construction
General Purpose, Medium Current
Absolute Maximum Ratings (Ta = 25 )
Parameter
Power dissipation
Thermal Resistance, Junction to Ambient Air
Forward Voltage
@ I
F
= 10mA
R
Symbol
P
JA
Rating
500
350
0.9
150
-55 to +150
Unit
mW
/W
V
V
F
T
j
T
stg
Jumction temperature
Storage temperature
Electrical Characteristics (Ta = 25 )
Zener voltage
V
Z
(V)
Type
Nom.
MMSZ5221B
MMSZ5222B
MMSZ5223B
MMSZ5224B
MMSZ5225B
MMSZ5226B
MMSZ5227B
MMSZ5228B
MMSZ5229B
MMSZ5230B
MMSZ5231B
MMSZ5232B
2.4
2.5
2.7
2.8
3.0
3.3
3.6
3.9
4.3
4.7
5.1
5.6
Min.
2.28
2.38
2.57
2.66
2.85
3.14
3.42
3.71
4.09
4.47
4.85
5.32
Max.
2.52
2.63
2.84
2.94
3.15
3.47
3.78
4.10
4.52
4.94
5.36
5.88
I
ZT
(mA)
20
20
20
20
20
20
20
20
20
20
20
20
Z
ZT
@ I
ZT
( )
30
30
30
30
29
28
24
23
22
19
17
11
Z
ZK
@ I
ZK
=0.25mA
( )
1200
1250
1300
1400
1600
1600
1700
1900
2000
1900
1600
1600
I
R
( A)
100
100
75
75
50
25
15
10
5
5
5
5
@ V
R
(V)
1
1
1
1
1
1
1
1
1
2
2
3
C1
C2
C3
C4
C5
D1
D2
D3
D4
D5
E1
E2
Zener Impedance
Leakage Current
Marking
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1
SMD Type
MMSZ5221B - MMSZ5272B
Zener voltage
V
Z
(V)
Type
Nom.
MMSZ5233B
MMSZ5234B
MMSZ5235B
MMSZ5236B
MMSZ5237B
MMSZ5238B
MMSZ5239B
MMSZ5240B
MMSZ5241B
MMSZ5242B
MMSZ5243B
MMSZ5244B
MMSZ5245B
MMSZ5246B
MMSZ5247B
MMSZ5248B
MMSZ5250B
MMSZ5251B
MMSZ5252B
MMSZ5253B
MMSZ5254B
MMSZ5255B
MMSZ5256B
MMSZ5257B
MMSZ5258B
MMSZ5259B
MMSZ5260B
MMSZ5261B
MMSZ5262B
MMSZ5263B
MMSZ5264B
MMSZ5265B
MMSZ5266B
MMSZ5267B
MMSZ5268B
MMSZ5269B
MMSZ5270B
MMSZ5272B
6.0
6.2
6.8
7.5
8.2
8.7
9.1
10
11
12
13
14
15
16
17
18
20
22
24
25
27
28
30
33
36
39
43
47
51
56
60
62
68
75
82
87
91
110
Min.
5.70
5.89
6.46
7.13
7.79
8.27
8.65
9.50
10.45
11.40
12.35
13.30
14.25
15.20
16.15
17.10
19.00
20.90
22.80
23.75
25.65
26.60
28.50
31.35
34.20
37.05
40.85
44.65
48.45
53.20
57.00
58.90
64.60
71.25
77.90
82.65
86.45
104.45
Max.
6.30
6.51
7.14
7.88
8.61
9.14
9.56
10.50
11.55
12.60
13.65
14.70
15.75
16.80
17.85
18.90
21.00
23.10
25.20
26.25
28.35
29.40
31.50
34.65
37.80
40.95
45.15
49.35
53.55
58.80
63.00
65.10
71.40
78.75
86.10
91.35
95.55
115.5
I
ZT
(mA)
20
20
20
20
20
20
20
20
20
20
9.5
9.0
8.5
7.8
7.4
7.0
6.2
5.6
5.2
5.0
4.6
4.5
4.2
3.8
3.4
3.2
3.0
2.7
2.5
2.2
2.1
2.0
1.8
1.7
1.5
1.4
1.4
1.1
Z
ZT
@ I
ZT
( )
7
7
5
6
8
8
10
17
22
30
13
15
16
17
19
21
25
29
33
35
41
44
49
58
70
80
93
105
125
150
170
185
230
270
330
370
400
750
Z
ZK
@ I
ZK
=0.25mA
( )
1600
1000
750
500
500
600
600
600
600
600
600
600
600
600
600
600
600
600
600
600
600
600
600
700
700
800
900
1000
1100
1300
1400
1400
1600
1700
2000
2200
2300
3000
I
R
( A)
5
5
3
3
3
3
3
3
2
1
0.5
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
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)
3.5
4
5
6
6.5
6.5
7
8
8.4
9.1
9.9
10
11
12
13
14
15
17
18
19
21
21
23
25
27
30
33
36
39
43
46
47
52
56
62
68
69
84
Zener Impedance
Leakage Current
Diodes
Marking
E3
E4
E5
F1
F2
F3
F4
F5
H1
H2
H3
H4
H5
J1
J2
J3
J5
K1
K2
K3
K4
K5
M1
M2
M3
M4
M5
N1
N2
N3
N4
N5
P1
P2
P3
P4
P5
R2
2
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