ZMM5221 THRU ZMM5262
0.5W SILICON PLANAR
ZENER DIODES
Features
Mechanical Data
· 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
· Case : MELF(DO-35) glass case
· Weight : Approx. 0.05 gram
Absolute Maximum Ratings (Limiting Values)
(TA=25℃)
Electrical Characteristics
(TA=25℃)
Symbols Value Units
Zener current see table "Characteristics"
Power dissipation at T
A
=75℃mW500
1)
Junction Temperature ℃
-65 to+175
Storage Temperature range ℃
P
tot
T
J175
T
STG
1) Valid provided that electrodes are kept at ambient temperature
Symbols Units
Thermal resistance junction to ambient ℃/W
Forward voltage at I
F
=200mA
1) Valid provided that electrodes are kept at ambient temperature
R
θJA
V
F
Min. Typ. Max.
300
1)
1.1 V
Dimensions in inches and (millimeters)
MELF (DO-35)
0.146(3.70)
0.130(3.30)
0.020(0.50)
0.011(0.28)
SOLDERABLE ENDS
0.063(1.60)
0.051(1.30)
ZMM5221...ZMM5262 SILICON PLANAR ZENER DIODES
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 (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.
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.
Nominal
Zener
Voltage
Type
Maximum zener
impedance1)
at
Iz
T
VzV
ZMM5225
ZMM5226
ZMM5227
ZMM5228
ZMM5229
ZMM5230
ZMM5231
Maximum Reverse Leakage Current
Maximum
Regulator
Current
2)
IR μA
Test-Voltage
Suffix A
VRV
ZMM5232
ZMM5233
ZMM5234
ZMM5235
ZMM5236
ZMM5237
ZMM5238
ZMM5239
ZMM5240
ZMM5241
ZMM5242
ZMM5243
ZMM5244
ZMM5245
ZMM5246
Suffix B
VRV
at
IzT
ZZT Ω
IZT mA
Typical
Temperature
Coefficient
ZMM5247
ZMM5248
ZMM5249
ZMM5250
ZMM5251
ZMM5252
ZMM5253
ZMM5254
ZMM5255
ZMM5256
ZMM5257
ZMM5258
ZMM5259
ZMM5260
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
11
12
13
14
15
16
9.1
10
17
18
19
20
22
24
25
30
33
36
39
43
27
28
19
17
20
20
20
20
20
20
20
11
7
7
5
6
8
8
10
17
22
30
13
15
16
17
20
20
20
20
20
20
20
20
20
9.5
9.0
8.5
7.8
20
20
29
19
21
23
25
29
33
35
41
44
49
58
70
80
93
7.4
7.0
6.6
6.2
5.6
5.2
5.0
4.2
3.8
3.4
3.2
3.0
4.6
4.5
28
24
23
22
±0.030
±0.030
1600
1600
1700
1900
2000
1900
1600
+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
1600
1600
1000
750
500
500
600
600
600
600
600
600
600
600
600
-0.075
+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
600
600
600
600
600
600
600
600
700
700
800
900
600
600
-0.070
-0.065
-0.060
-0.055
50
25
15
10
5
5
5
5
5
5
3
3
3
3
2
1
0.5
0.1
0.1
0.1
3
3
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
2.0
2.0
0.95
0.95
0.95
0.95
0.95
1.9
1.9
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
2.9
3.3
3.8
4.8
5.7
6.2
6.2
8.0
8.7
9.4
9.5
10.5
11.4
6.7
7.6
1.0
13
14
14
15
17
18
19
21
21
23
25
27
30
33
12.4
13.3
13.3
14.3
16.2
17.1
18.1
22
24
26
29
31
20
20
1.0
1.0
1.0
1.0
152
138
126
115
106
97
89
81
76
73
67
61
55
52
41
38
35
32
30
28
50
45
27
25
24
23
21
19.1
18.2
15.1
13.8
12.6
11.6
10.6
ZMM5261 47 105
2.7 +0.095
1000 0.1 3634 9.7
16.8
16.2
Test
Current
at
Izk=0.25mA
ZZK IzT mA
αVZ %/K IZM mA
ZMM5262 51 125
2.5 +0.096
1100 0.1 3937 8.9
ZMM5224 2.8 20 30 1400 -0.080 75 0.95 1.0 162
ZMM5223 2.7 20 30 1300 -0.080 75 0.95 1.0 168
ZMM5222 2.5 20 30 1250 -0.085 100 0.95 1.0 182
ZMM5221 2.4 20 30 1200 -0.085 100 0.95 1.0 191
Admissible power dissipation versus ambient temperature
(Valid provided that electrodes are kept at ambient
temperature)
0 50 100 150 200 250 ℃
T
amb
mW
0
200
100
500
400
300
P
tot
ZMM5221...
ZMM5221 THRU ZMM5262 SILICON PLANAR ZENER DIODES