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ZMM5225 thru ZMM5267  
Zener Diodes  
Zener Voltage Range: 3.0 to 75 Volts 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  
(TA=25oC unless otherwise noted)  
Parameter  
Symbol  
Value  
Unit  
Zener current (see Table "Characteristics")  
Power dissipation at Tamb=75oC  
Ptot  
500 (1)  
300 (1)  
mW  
oC/W  
oC  
Thermal resistance junction to ambient air  
Maximum junction temperature  
RθJA  
T
175  
j
Storage temperature range  
TS  
-65 to +175  
oC  
Notes:  
1. Valid provided that electrodes are kept at ambient temperature.  
490  
Electrical Characteristics  
(TA=25oC unless otherwise noted) Maximum VF=1.25V at IF=200mA  
Maximum reverse  
leakage current  
Nominal zener  
voltage (3)  
Typical  
Maximum zener impedance (2)  
at IZT  
VZ  
(Volts)  
Test current  
Maximum regulator  
current (2)  
temperature  
coefficient  
αvz (% / oC)  
Type  
IZT  
(mA)  
at IZT  
at IZT=0.25mA  
Test voltage  
IR (uA)  
number  
ZZT (Ω)  
ZZK (Ω)  
IZM (mA)  
VR (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  
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  
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  
20  
20  
29  
28  
24  
23  
22  
19  
17  
11  
7
1600  
1600  
1700  
1900  
2000  
1900  
1600  
1600  
1600  
1000  
750  
-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  
+0.096  
+0.097  
+0.097  
+0.097  
+0.098  
152  
138  
126  
115  
106  
97  
50  
25  
20  
15  
20  
10  
20  
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  
20  
20  
89  
20  
81  
20  
76  
20  
7
73  
20  
5
67  
20  
6
500  
61  
20  
8
500  
55  
20  
8
600  
52  
20  
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  
600  
50  
20  
600  
45  
20  
600  
41  
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  
20  
600  
38  
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  
600  
35  
600  
32  
600  
30  
11  
600  
28  
12  
600  
27  
13  
600  
25  
14  
600  
24  
14  
600  
23  
15  
600  
21  
17  
600  
19.1  
18.2  
16.8  
16.2  
15.1  
13.8  
12.6  
11.6  
10.6  
9.7  
8.9  
-
18  
600  
19  
600  
21  
600  
21  
600  
23  
700  
25  
700  
27  
800  
30  
900  
33  
1000  
1100  
1300  
1400  
1400  
1600  
1700  
36  
39  
43  
-
46  
-
47  
-
52  
-
56  
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  
(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. Valid provided that electrodes are kept at ambient temperature  
3. Tested under thermal equilibrium and DC test conditions  
491  
RATINGS AND CHARACTERISTIC CURVES  
(TA = 25oC unless otherwise noted)  
492