CHENMKO ENTERPRISE CO.,LTD
SURFACE MOUNT ZENER
SILICON PLANAR POWER ZENER DIODES
VOLTAGE RANGE 2.4V TO 91V
MMCZ5221BPT
THRU
MMCZ5270BPT
FEATURE
*
*
*
*
*
*
*
Small surface mounting type. (SC-59/SOT-346)
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
225 mW Rating on FR-4 or FR-5 Board
1.9±0.2
(3)
0.1
0.4±0.05
0.95
(1)
1.6± 0.2
0.1
SC-59/SOT-346
(2)
0.95
MECHANICAL
* SC-59/SOT-346 Packaging.
* Mounting position: Any.
2.9±0.2
0.15± 0.1
0.06
0.3~0.6
0.2
1.1± 0.1
0.8±0.1
0~0.1
2.8±0.2
CIRCUIT
(2)
(1)
(3)
Dimensions in inches and (millimeters)
SC-59/SOT-346
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.
500
0.9
UNITS
o
C/W
V
F
Volts
2003-01
NOTES : 1. The JEDEC type numbers listd have a standaerd tolerance on the normal zener voltage of +10%, Suffix B=+5%.Suffix S=+2%
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 ( MMCZ5221BPT THRU MMCZ5270BPT )
Zener voltage
V
Z
(V) @ I
ZT
TYPE
Min
Volts
MMCZ5221BPT
MMCZ5222BPT
MMCZ5223BPT
MMCZ5224BPT
MMCZ5225BPT
MMCZ5226BPT
MMCZ5227BPT
MMCZ5228BPT
MMCZ5229BPT
MMCZ5230BPT
MMCZ5231BPT
MMCZ5232BPT
MMCZ5233BPT
MMCZ5234BPT
MMCZ5235BPT
MMCZ5236BPT
MMCZ5237BPT
MMCZ5238BPT
MMCZ5239BPT
MMCZ5240BPT
MMCZ5241BPT
MMCZ5242BPT
MMCZ5243BPT
MMCZ5244BPT
MMCZ5245BPT
MMCZ5246BPT
MMCZ5247BPT
MMCZ5248BPT
MMCZ5249BPT
MMCZ5250BPT
MMCZ5251BPT
MMCZ5252BPT
MMCZ5253BPT
MMCZ5254BPT
MMCZ5255BPT
MMCZ5256BPT
MMCZ5257BPT
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 ( MMCZ5221BPT THRU MMCZ5270BPT )
Zener voltage
V
Z
(V) @ I
ZT
TYPE
Min
Volts
MMCZ5258BPT
MMCZ5259BPT
MMCZ5260BPT
MMCZ5261BPT
MMCZ5262BPT
MMCZ5263BPT
MMCZ5264BPT
MMCZ5265BPT
MMCZ5266BPT
MMCZ5267BPT
MMCZ5268BPT
MMCZ5269BPT
MMCZ5270BPT
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 ( MMCZ5221BPT THRU MMCZ5270BPT )
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 MMCZ5221BPT 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 MMCZ5221BPT 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 (MMCZ5267BPT)
91V (MMCZ5270BPT)
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 ( MMCZ5221BPT THRU MMCZ5270BPT )
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 )
