ZMM5225 thru ZMM5267
Zener Voltage Range: 3.0 to 75 Volts
Zener Diodes
Power Dissipation: 500mW
Features
Silicon Planar Power Zener Diodes.
Standard Zener voltage tolerance is
±
5% with a “B” suffix,
and
±
10% with a “A” suffix . Other tolerances are available
upon request.
These diodes are also available in DO-35 case with the type
designation 1N5221 ... 1N5281.
Mechanical Data
Case: MiniMELF Glass Case (SOD-80)
Weight: approx. 0.05g
Maximum Ratings and Thermal Characteristics
(T
A
=25
o
C unless otherwise noted)
Parameter
Zener current (see Table "Characteristics")
Power dissipation at T
amb
=75
o
C
Thermal resistance junction to ambient air
Maximum junction temperature
Storage temperature range
P
tot
R
θ
JA
T
j
T
S
500
300
(1)
Symbol
Value
Unit
mW
o
(1)
C/W
o
175
-65 to +175
C
C
o
Notes:
1. Valid provided that electrodes are kept at ambient temperature.
490
Electrical Characteristics
(T
A
=25
o
C unless otherwise noted)
Maximum V
F
=1.25V at I
F
=200mA
Nominal z ener
voltage
(3)
at I
ZT
V
Z
(Volts)
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
43
47
51
56
60
62
68
75
Maximum reverse
leakage current
Maximum regulator
current
(2)
I
ZM
(mA)
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
12.6
11.6
10.6
9.7
8.9
-
-
-
-
-
Test voltage
V
R
(Volts)
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
33
36
39
43
46
47
52
56
Type
number
ZMM5225
ZMM5226
ZMM5227
ZMM5228
ZMM5229
ZMM5230
ZMM5231
ZMM5232
ZMM5233
ZMM5234
ZMM5235
ZMM5236
ZMM5237
ZMM5238
ZMM5239
ZMM5240
ZMM5241
ZMM5242
ZMM5243
ZMM5244
ZMM5245
ZMM5246
ZMM5247
ZMM5248
ZMM5249
ZMM5250
ZMM5251
ZMM5252
ZMM5253
ZMM5254
ZMM5255
ZMM5256
ZMM5257
ZMM5258
ZMM5259
ZMM5260
ZMM5261
ZMM5262
ZMM5263
ZMM5264
ZMM5265
ZMM5266
ZMM5267
Test current
I
ZT
(mA)
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
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
Maximum z ener impedance
at I
ZT
Z
ZT
(Ω)
Ω
29
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
93
105
125
150
170
185
230
270
(2)
at I
ZT
=0.25mA
Z
ZK
(Ω)
Ω
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
900
1000
1100
1300
1400
1400
1600
1700
Typical
temperature
coefficient
α
vz (% /
o
C)
-0.075
-0.070
-0.065
-0.060
-0.055
+
+
I
R
(uA)
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
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
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
+0.087
+0.089
+0.090
+0.091
+0.091
+0.092
+0.093
+0.094
+0.095
+0.095
+0.096
+0.096
+0.097
+0.097
+0.097
+0.098
Notes:
1. The Zener impedance is derived from the 1kHz AC voltage which results when an AC current having an RMS value equal to 10% of the 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 and to eliminate
unstable units
2. Valid provided that electrodes are kept at ambient temperature
3. Tested under thermal equilibrium and DC test conditions
491
Embedded System
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