ZMM5221 THRU ZMM5262
Features
· Standards Zener voltage tolerance is
±20%.Add
suffix "A"
for
±10%
tolerance and suffix "B" for
±5%
tolerance other
tolerance, non standards and higher zener voltage upon
request.
· These diode are also available in DO-35 case with type
designation 1N5221 thru 1N5262
0.5W SILICON PLANAR
ZENER DIODES
MELF (DO-35)
SOLDERABLE ENDS
0.020(0.50)
0.011(0.28)
Mechanical Data
· Case : MELF(DO-35) glass case
· Weight : Approx. 0.05 gram
0.146(3.70)
0.130(3.30)
0.063(1.60)
0.051(1.30)
Dimensions in inches and (millimeters)
Absolute Maximum Ratings (Limiting Values)
(T
A
=25℃)
Symbols
Value
500
1)
175
-65 to+175
Units
mW
℃
℃
Zener current see table "Characteristics"
Power dissipation at T
A
=75℃
Junction Temperature
Storage Temperature range
1) Valid provided that electrodes are kept at ambient temperature
P
tot
T
J
T
STG
Electrical Characteristics
(T
A
=25℃)
Symbols
Min.
Typ.
Max.
300
1)
1.1
Units
℃/W
V
Thermal resistance junction to ambient
Forward voltage at I
F
=200mA
R
θJA
V
F
1) Valid provided that electrodes are kept at ambient temperature
ZMM5221...ZMM5262 SILICON PLANAR ZENER DIODES
Nominal
Zener
Voltage
Test
Current
Maximum zener
impedance
1)
at
Iz
T
Z
ZT
Ω
30
30
30
30
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
Typical
Temperature
Coefficient
Maximum Reverse Leakage Current
Test-Voltage
Suffix A
V
R
V
0.95
0.95
0.95
0.95
0.95
0.95
0.95
0.95
0.95
1.9
1.9
2.9
3.3
3.8
4.8
5.7
6.2
6.2
6.7
7.6
8.0
8.7
9.4
9.5
10.5
11.4
12.4
13.3
13.3
14.3
16.2
17.1
18.1
20
20
22
24
26
29
31
34
37
Maximum
Regulator
Current
2)
Type
ZMM5221
ZMM5222
ZMM5223
ZMM5224
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
at
Iz
T
VzV
I
ZT mA
20
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
4.6
4.5
4.2
3.8
3.4
3.2
3.0
2.7
2.5
at
Iz
k
=0.25mA
Z
ZK
Iz
T
mA
1200
1250
1300
1400
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
α
VZ
%/K
-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
+0.087
+0.089
+0.090
+0.091
+0.091
+0.092
+0.093
+0.094
+0.095
+0.095
+0.096
I
R
μA
100
100
75
75
50
25
15
10
5
5
5
5
5
5
3
3
3
3
3
3
2
1
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
Suffix B
V
R
V
1.0
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
33
36
39
I
ZM mA
191
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
12.6
11.6
10.6
9.7
8.9
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
36
39
43
47
51
1) The zener impedance is derived from the 1kHz AC voltage which results when on AC current having an RMS value equal to 10% of the Zener
current (Iz
T
or Iz
K
) is superimposed on Iz
T
or Iz
K
Zener impedance is measured at two points to insure a sharp knee on the breakdown curve
and to eliminate unstable units.
2) Vaild provided that leads are kept at ambient temperature at a distance of 8mm from case.
3) Measured with device junction in thermal equilibrium.
ZMM5221 THRU ZMM5262 SILICON PLANAR ZENER DIODES
Admissible power dissipation versus ambient temperature
(Valid provided that electrodes are kept at ambient
temperature)
mW
500
ZMM5221...
P
tot
400
300
200
100
0
0
50
100
150
200
250
℃
T
amb
