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R
SEMICONDUCTOR
ZMM5221 THRU ZMM5262
0.5W SILICON PLANAR ZENER DIODES
FEATURES
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
High temperature soldering guaranteed:260℃/10 seconds at terminals
Component in accordance to RoHS 2002/95/EC and WEEE 2002/96/EC
JF
MECHANICAL DATA
Case: MiniMELF(SOD-80) glass case
Weight: Approx. 0.05 gram
MiniMELF
0.142(3.6)
0.134(3.4)
0.063(1.6)
0.055(1.4)
0.019(0.48)
0.011(0.28)
Dimensions in inches and (millimeters)
ABSOLUTE MAXIMUM RATINGS(LIMITING VALUES) (TA=25 C)
Zener current see table "Characteristics"
Power dissipation at TA=25 C
Junction temperature
Storage temperature range
1) Valid provided that electrodes is kept at ambient temperature
Symbols
Ptot
TJ
TSTG
Value
5001)
175
-65 to+175
Units
mW
C
C
ELECTRICAL CHARACTERISTICS (TA=25 C)
Symbols
Thermal resistance junction to ambient
R JA
Forward voltage at IF=200mA
VF
1) Valid provided that electrodes is kept at ambient temperature
Min
Typ Max Units
3001)
K/W
1.1 V
JINAN JINGHENG ELECTRONICS CO., LTD.
10-29
HTTP://WWW.JINGHENGGROUP.COM

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ZMM5221 ... ZMM5262 SILICON PLANAR ZENER DIODES
Type
Nominal
Zener
Voltage 1)
VZ(V)
at IZT
Test
Current
IZT (mA)
Maximum Zener Impedance 2) Typical
temperature
coefficient
ZZT(Ω)
at IZT
Zzk(Ω)
at IzT=0.25mA
Vz
%/K
Maximum reverse leakage current
IR( uA)
Test voltage
VR(V)
Suffix A
Test voltage
VR(V)
Suffix B
Maximum
regulator
Current 3)
IZM(mA)
ZMM5221
2.4
20
30
1200
-0.085
100
0.95
1.0
185
ZMM5222
2.5
20
30
1250
-0.085
100
0.95
1.0
180
ZMM5223
2.7
20
30
1300
-0.080
75
0.95
1.0
165
ZMM5224
2.8
20
30
1400
-0.080
75
0.95
1.0
160
ZMM5225
3.0
20
29
1600
-0.075
50
0.95
1.0
152
ZMM5226
3.3
20
28
1600
-0.070
25
0.95
1.0
138
ZMM5227
3.6
20
24
1700
-0.065
15
0.95
1.0
126
ZMM5228
3.9
20
23
1900
-0.060
10
0.95
1.0
115
ZMM5229
4.3
20
22
2000
-0.055
5
0.95
1.0
106
ZMM5230
4.7
20
19 1900
0.030
5
1.9 2.0
97
ZMM5231
5.1
20
17 1600
0.030
5
1.9 2.0
89
ZMM5232
5.6
20
11
1600
+0.038
5
2.9 3.0
81
ZMM5233
6.0
20
7
1600
+0.038
5
3.3 3.5
76
ZMM5234
6.2
20
7
1000
+0.045
5
3.8 4.0
73
ZMM5235
6.8
20
5
750
+0.050
3
4.8 5.0
67
ZMM5236
7.5
20
6
500
+0.058
3
5.7 6.0
61
ZMM5237
8.2
20
8
500
+0.062
3
6.2 6.5
55
ZMM5238
8.7
20
8
600
+0.065
3
6.2 6.5
52
ZMM5239
9.1
20
10
600
+0.068
3
6.7 7.0
50
ZMM5240
10
20
17
600
+0.075
3
7.6 8.0
45
ZMM5241
11
20
22
600
+0.076
2
8.0 8.4
41
ZMM5242
12
20
30
600
+0.077
1
8.7 9.1
38
ZMM5243
13
9.5
13 600
+0.079
0.5
9.4
9.9
35
ZMM5244
14
9.0
15 600
+0.082
0.1
9.5
10
32
ZMM5245
15
8.5
16
600
+0.082
0.1
10.5
11
30
ZMM5246
16
7.8
17
600
+0.083
0.1
11.4
12
28
ZMM5247
17
7.4
19
600
+0.084
0.1
12.4
13
27
ZMM5248
18
7.0
21
600
+0.085
0.1
13.3
14
25
ZMM5249
19
6.6
23
600
+0.086
0.1
13.3
14
24
ZMM5250
20
6.2
25
600
+0.086
0.1
14.3
15
23
ZMM5251
22
5.6
29
600
+0.087
0.1
16.2
17
21
ZMM5252
24
5.2
33
600
+0.087
0.1
17.1
18
19.1
ZMM5253
25
5.0
35
600
+0.089
0.1
18.1
19
18.2
ZMM5254
27
4.6
41
600
+0.090
0.1
20
21
16.8
ZMM5255
28
4.5
44
600
+0.091
0.1
20
21
16.2
ZMM5256
30
4.2
49
600
+0.091
0.1
22
23
15.1
ZMM5257
33
3.8
58
700
+0.092
0.1
24
25
13.8
ZMM5258
36
3.4
70
700
+0.093
0.1
26
27
12.6
ZMM5259
39
3.2
80
800
+0.094
0.1
29
30
11.6
ZMM5260
43
3.0
93
900
+0.095
0.1
31
33
10.6
ZMM5261
47
2.7
105
1000
+0.095
0.1
34
36
9.7
ZMM5262
51
2.5
125 1100
+0.096
0.1
37
39
8.9
1)Tested with pulses tp = 20 ms ,Measured under thermal equilibrium and DC test conditions.
2) The zener impedance is derived from the 50Hz AC voltage which results when an AC current having an RMS value equal to 10% of the Zener current (IZT or IZK) is
superimposed on IZT or IZK .Zener impedance is measured at two points to insure a sharp knee on the breakdown curve and to eliminate unstable units.
3) Valid provided that electrodes are kept at ambient temperature.
JINAN JINGHENG ELECTRONICS CO., LTD.
10-30
HTTP://WWW.JINGHENGGROUP.COM

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ZMM5221 THRU ZMM5262 SILICON PLANAR ZENER DIODES
FIG.1-Power Dissipation vs Ambient Temperature
500
400
300
200
100
0
0 40 80 120 160 200
TA,AMBIENT TEMPERATURE
FIG.2-Junction Capacitance vs Zener Voltage
200
VR=2.0V
Tj=25°C
150
100
50
0
0 5 10 15 20 25
VZ,ZENER VOLTAGE(V)
FIG.3-Differential Zener Impedance
1000
Tj=25°C
100
IZ=1.0mA
5.0mA
10
10mA
0
05
10 15
VZ,ZENER VOLTAGE(V)
20
25
FIG.4-typical Normallzed Transient Thermal Impedance Curves
1000
100
10
1.0
0.1
D=0.5
0.2
0.1
0.05
0.02
0.01
1.0 10
100
tj,SQUARE WAVE PULSE DURATION (seconds)
1000
JINAN JINGHENG ELECTRONICS CO., LTD.
10-31
HTTP://WWW.JINGHENGGROUP.COM