CHENMKO ENTERPRISE CO.,LTD
SURFACE MOUNT ZENER
SILICON PLANAR POWER ZENER DIODES
VOLTAGE RANGE 2.4V TO 91V
MMSZ5221BPT
THRU
MMSZ5270BPT
FEATURE
*
*
*
*
*
*
*
Small surface mounting type. (SC-79/SOD-523)
High temperature soldering type.
ESD rating of class 3(>16 kV) per human body model.
Silicon planar zener diodes.
Silcon-oxide passivated junction.
Low temperature coefficient voltage
500 mW Rating on FR-4 or FR-5 Board
(1)
SC-79/SOD-523
Cathode
(2)
MECHANICAL
* SC-79/SOD-523 Packaging.
* Cathode indicated by polarity band.
* Mounting position: Any.
0.25~0.35
0.75~0.85
1.1~1.3
0.5~0.77
0.07~0.17
CIRCUIT
(2)
1.5~1.7
(1)
Dimensions in millimeters
SC-79/SOD-523
MAXIMUM RATINGES
( At T
A
= 25
o
C unless otherwise noted )
RATINGS
Zener Current ( see Table "Characteristics" )
Max. Steady State Power Dissipation @T
A
=25
o
C
Max. Operating Temperature Range
Storage Temperature Range
SYMBOL
-
P
D
T
J
T
STG
VALUE
-
225
-65 to +150
-65 to +150
UNITS
-
mW
o
C
C
o
ELECTRICAL CHARACTERISTICS
( At T
A
= 25
o
C unless otherwise noted )
CHARACTERISTICS
Thermal Resistance Junction to Ambient
Max. Instantaneous Forward Voltage at I
F=
10mA
SYMBOL
R
JA
MIN.
-
-
TYP.
-
-
MAX.
556
0.9
UNITS
o
C/W
V
F
Volts
2002-10
NOTES : 1. The JEDEC type numbers listd have a standaerd tolerance on the normal zener voltage of +10%, Suffix B=+5%.
2. The zener impedance is derived from 1KHz AC voltage, which results when an AC current having an RMS value equal to 10%
of DC zener current (I
ZT
or I
ZK
) is superimposed on I
ZT
or I
ZK
. Zener impedance is measured at two points to insure a sharp knee
on the breakdown curve to eliminate unstable units.
3. Valid provided that electrodes at distance of 10mm from case are kept ambient temperature.
4. Measured under thermal equilibrium and DC test conditions.
5. The rating listd in the electrical characteristics table is maximum peak, non-repetitive, reverse surge current of 1/2 square wave
or equivalent sine wave pulse of 1/120 second duration superimposed on the test current, I
ZT
, per JEDEC registration.
ELECTRICAL CHARACTERISTICS ( MMSZ5221BPT THRU MMSZ5270BPT )
Zener voltage
V
Z
(V) @ I
ZT
TYPE
Min
Volts
MMSZ5221BPT
MMSZ5222BPT
MMSZ5223BPT
MMSZ5224BPT
MMSZ5225BPT
MMSZ5226BPT
MMSZ5227BPT
MMSZ5228BPT
MMSZ5229BPT
MMSZ5230BPT
MMSZ5231BPT
MMSZ5232BPT
MMSZ5233BPT
MMSZ5234BPT
MMSZ5235BPT
MMSZ5236BPT
MMSZ5237BPT
MMSZ5238BPT
MMSZ5239BPT
MMSZ5240BPT
MMSZ5241BPT
MMSZ5242BPT
MMSZ5243BPT
MMSZ5244BPT
MMSZ5245BPT
MMSZ5246BPT
MMSZ5247BPT
MMSZ5248BPT
MMSZ5249BPT
MMSZ5250BPT
MMSZ5251BPT
MMSZ5252BPT
MMSZ5253BPT
MMSZ5254BPT
MMSZ5255BPT
MMSZ5256BPT
MMSZ5257BPT
Test
current
Max
Volts
2.520
2.625
2.835
2.940
3.150
3.465
3.780
4.095
4.515
4.935
5.355
5.880
6.300
6.510
7.140
7.875
8.610
9.135
9.555
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
I
ZT
(mA)
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
Maximum Zener impedance
Nom
Volts
2.4
2.5
2.7
2.8
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
Z
ZT
at I
ZT
( )
100
100
100
100
95
95
90
90
88
70
50
25
25
10
8
7
7
7
10
15
18
22
25
25
32
36
36
42
42
48
55
62
62
70
44
78
88
Z
ZK
( )
1800
1800
1900
1900
2000
2200
2300
2400
2500
2200
2050
1800
1800
1300
750
600
600
600
600
600
600
600
600
600
600
600
600
600
600
600
600
600
600
600
600
600
700
at
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
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
Maximum
Type
Maximum
reverse leakage current temperature regulator
coefficient
current
at
at
I
R
at V
R
T
A
= 25
o
C T
A
= 50
o
C
o
(uA)
(V)
VZ
(%/ C)
I
ZM
(mA)
100
100
75
75
50
25
15
10
5
3
2
5
5
1
1
0.5
0.5
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
1
1
1
1
1
1
1
1
1
1.5
2
3
3
4
5.2
6
6.5
6.5
7
8
8.4
9.1
9.9
10
11
12
13
14
14
16
17
18
19
21
21
23
25
-0.085
-0.085
-0.080
-0.080
-0.075
-0.070
-0.065
-0.060
-0.055
+0.030
+0.030
+0.038
+0.038
+0.045
+0.050
+0.058
+0.062
+0.065
+0.068
+0.075
+0.076
+0.077
+0.079
+0.082
+0.082
+0.083
+0.084
+0.085
+0.086
+0.086
+0.087
+0.088
+0.089
+0.090
+0.091
+0.091
+0.092
190
182
168
162
152
138
126
115
106
97
89
81
76
73
67
61
55
52
50
45
41
38
35
32
30
28
27
25
24
23
21
19.1
18.2
16.8
16.2
15.1
13.8
2.280
2.375
2.565
2.660
2.850
3.135
3.420
3.705
4.085
4.465
4.845
5.320
5.700
5.890
6.460
7.125
7.790
8.265
8.645
9.500
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
ELECTRICAL CHARACTERISTICS ( MMSZ5221BPT THRU MMSZ5270BPT )
Zener voltage
V
Z
(V) @ I
ZT
TYPE
Min
Volts
MMSZ5258BPT
MMSZ5259BPT
MMSZ5260BPT
MMSZ5261BPT
MMSZ5262BPT
MMSZ5263BPT
MMSZ5264BPT
MMSZ5265BPT
MMSZ5266BPT
MMSZ5267BPT
MMSZ5268BPT
MMSZ5269BPT
MMSZ5270BPT
Test
current
Max
Volts
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
I
ZT
(mA)
5
5
3.0
2.7
2.5
2.2
2.1
2.0
1.8
1.7
1.5
1.4
1.4
Maximum Zener impedance
Nom
Volts
36
39
43
47
51
56
60
62
68
75
82
87
91
Z
ZT
at I
ZT
( )
95
130
93
105
125
150
170
185
230
270
330
370
400
Z
ZK
( )
700
800
900
1000
1100
1300
1400
1400
1600
1700
2000
2200
2300
at
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
Maximum
Type
Maximum
reverse leakage current temperature regulator
coefficient
current
at
at
I
R
at V
R
T
A
= 25
o
C T
A
= 50
o
C
o
(uA)
(V)
VZ
(%/ C)
I
ZM
(mA)
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
27
30
33
36
39
43
46
47
52
56
62
68
69
+0.093
+0.094
+0.095
+0.095
+0.096
+0.096
+0.097
+0.097
+0.097
+0.098
+0.098
+0.099
+0.099
13.8
12.6
11.6
10.6
9.7
8.9
11.6
-
-
-
-
-
-
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
RATING CHARACTERISTIC CURVES ( MMSZ5221BPT THRU MMSZ5270BPT )
FIG. 1 - TEMPERATURE COEFFICIENTS)
(TEMPERATURE RANGE 55
o
C TO
+150
o
C
)
8
7
6
5
4
3
2
1
0
-1
-2
-3
V
Z
@ I
ZT
TYPICAL TC VALUES
FOR MMSZ5221BPT SERIES
TEMPERATURE COEFFICIENT (mV/ oC)
TEMPERATURE COEFFICIENT (mV/ oC)
FIG. 2 - TEMPERATURE COEFFICIENTS)
(TEMPERATURE RANGE 55
o
C
TO +150
o
C
)
100
TYICAL TC VALUES
FOR MMSZ5221BPT SERIES
V
Z
@ I
ZT
10
VZ,
V
Z
NOMINAL ZENER VOLTAGE ( V )
VZ,
2
3
4
5
6
7
8
9
10
11
12
1
10
100
V
Z
NOMINAL ZENER VOLTAGE ( V )
FIG. 3 - EFFECT OF ZENER VOLTAGE ON
ZENER IMPEDANCE
1000
1000
FIG. 4 - TYPICAL FORWARD VOLTAGE
Z
ZT
DYNAMIC IMPEDANCE(
I
Z
= 1mA
100
5mA
I
F,
FORWARD CURRENT (mA)
T
J
=25
o
C
I
Z(AC)
=0.1I
Z(DC)
f=1KH
Z
)
75V (MMSZ5267BPT)
91V (MMSZ5270BPT)
100
20mA
10
10
150
o
C
75
o
C
25
o
C
0
o
C
1
1
10
100
1
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
V
Z
NOMINAL ZENER VOLTAGE ( V )
V
F
FORWARD VOLTARGE ( V )
RATING CHARACTERISTIC CURVES ( MMSZ5221BPT THRU MMSZ5270BPT )
FIG. 5 - TYPICAL CAPACITANCE
1000
T
A
=25 C
o
FIG. 6 - TYPICAL LEAKAGE CURRENT
1000
C, CAPACITANCE (pF)
0 V BIAS
1 V BIAS
I
R
,LEAKAGE CURRENT (uA)
100
10
1
0.1
0.01
0.001
0.0001
0.00001
0
10
20
30
40
50
60
25
o
C
-55
o
C
150
o
C
100
BIAS AT
50% OF V
Z
NOM
10
1
1
10
100
70
80
90
V
Z
NOMINAL ZENER VOLTAGE ( V )
V
Z
NOMINAL ZENER VOLTAGE ( V )
FIG. 7 - ZENER VOLTAGE VERSUS ZENER CURRENT
(V
Z
UP TO 12V)
100
T
A
=25
o
C
FIG. 8 - ZENER VOLTAGE VERSUS ZENER CURRENT
(12V TO 91V)
100
T
A
=25
o
C
I
Z
ZENER CURRENT (mA)
10
I
Z,
ZENER CURRENT
0
2
4
6
8
10
12
10
1
1
0.1
0.1
0.01
0.01
10
30
50
70
90
V
Z
ZENER VOLTAGE ( V )
V
Z
ZENER VOLTAGE ( V )
