JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., LTD
SOT-23 Plastic-Encapsulate Diode
MMBZ5221B-MMBZ5259B
FEATURES：
Planar Die Construction
350mW Power Dissipation on FR-4 PCB
General purpose, Medium Current
Ideally Suited for Automated Assembly
ZENER DIODE
SOT-23
Marking:
see table on page2 The first code
Maximum Ratings(T
a
= 25℃ unless otherwise specified)
Characteristic
Forward Voltage @ I
F
= 10mA
Power Dissipation
Thermal Resistance, Junction to Ambient Air
Operating and Storage Temperature Range
Symbol
V
F
P
D
R
θ
JA
T
j
, T
STG
Value
0.9
300
417
-65
~
+150
Unit
V
mW
℃/W
℃
ELECTRICAL CHARACTERISTICS (T
a
=25℃ unless otherwise specified)
Type Number
Marking
Code
Zener Voltage Range (Note 1)
V
Z
@ I
ZT
Nom (V)
Min (V)
2.28
2.38
2.57
2.85
3.14
3.42
3.71
4.09
4.47
4.85
5.32
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
18.05
19.00
20.90
22.80
23.75
25.65
26.60
28.50
31.35
34.20
37.05
Max (V)
2.52
2.63
2.84
3.15
3.47
3.78
4.10
4.52
4.94
5.36
5.88
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
19.95
21.00
23.10
25.20
26.25
28.35
29.40
31.50
34.65
37.80
40.95
Test
Current
I
ZT
mA
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
9.5
9.0
8.5
7.8
7.4
7.0
6.6
6.2
5.6
5.2
5.0
5.0
4.5
4.2
3.8
3.4
3.2
Maximum Zener
Impedance (Note 2)
Z
ZT
@
I
ZT
30
30
30
30
28
24
23
22
19
17
11
7
7
5
6
8
8
10
17
22
30
13
15
16
17
19
21
23
25
29
33
35
41
44
49
58
70
80
Z
ZK
@ I
ZK
=
0.25mA
Maximum Reverse
Leakage Current
(Note 1)
I
R
µA
@V
R
V
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
2.0
2.0
3.0
3.5
4.0
5.0
6.0
6.5
6.5
7.0
8.0
8.4
9.1
9.9
10
11
12
13
14
14
15
17
18
19
21
21
23
25
27
30
Ω
1200
1250
1300
1600
1600
1700
1900
2000
1900
1600
1600
1600
1000
750
500
500
600
600
600
600
600
600
600
600
600
600
600
600
600
600
600
600
600
600
600
700
700
800
MMBZ5221B
MMBZ5222B
MMBZ5223B
MMBZ5225B
MMBZ5226B
MMBZ5227B
MMBZ5228B
MMBZ5229B
MMBZ5230B
MMBZ5231B
MMBZ5232B
MMBZ5233B
MMBZ5234B
MMBZ5235B
MMBZ5236B
MMBZ5237B
MMBZ5238B
MMBZ5239B
MMBZ5240B
MMBZ5241B
MMBZ5242B
MMBZ5243B
MMBZ5244B
MMBZ5245B
MMBZ5246B
MMBA5247B
MMBZ5248B
MMBZ5249B
MMBZ5250B
MMBZ5251B
MMBZ5252B
MMBZ5253B
MMBZ5254B
MMBZ5255B
MMBZ5256B
MMBZ5257B
MMBZ5258B
MMBZ5259B
KC1
KC2
KC3
KC5
KG1
KG2
KG3
KG4
KG5
KE1
KE2
KE3
KE4
KE5
KF1
KF2
KF3
KF4
KF5
KH1
KH2
KH3
KH4
KH5
KJ1
KJ2
KJ3
KJ4
KJ5
KK1
KK2
KK3
KK4
KK5
KM1
KM2
KM3
KM4
2.4
2.5
2.7
3.0
3.3
3.6
3.9
4.3
4.7
5.1
5.6
6.0
6.2
6.8
7.5
8.2
8.7
9.1
10
11
12
13
14
15
16
17
18
19
20
22
24
25
27
28
30
33
36
39
100
100
75
50
25
15
10
5.0
5.0
5.0
5.0
5.0
5.0
3.0
3.0
3.0
3.0
3.0
3.0
2.0
1.0
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
Notes: 1. Short duration test pulse used to minimize self-heating effect.
2. f = 1KHz.
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