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1N5225 THRU 1N5267  
ZENER DIODES  
FEATURES  
♦ Silicon Planar Power Zener Diodes  
DO-35  
♦ Standard Zener voltage tolerance is ± 5%  
with a “B” suffix. Other tolerances are  
available upon request.  
max. .079 (2.0)  
♦ These diodes are also available in Mini-MELF case with  
the type designation ZMM5225 ... ZMM5267, SOT-23  
case with the type designation MMBZ5265 ... MMBZ5267  
and SOD-23 case with the types designation MMSZ5225 ...  
MMSZ5267.  
Cathode  
Mark  
max. .020 (0.52)  
MECHANICAL DATA  
Case: DO-35 Glass Case  
Dimensions are in inches and (millimeters)  
Weight: approx. 0.13 g  
MAXIMUM RATINGS  
Ratings at 25°C ambient temperature unless otherwise specified.  
SYMBOL  
VALUE  
UNIT  
Zener Current (see Table “Characteristics”)  
Power Dissipation at T  
= 75°C  
P
500(1)  
175  
mW  
°C  
amb  
tot  
Maximum Junction Temperature  
Storage Temperature Range  
T
j
T
– 65 to +175  
°C  
S
SYMBOL  
MIN.  
TYP.  
MAX.  
UNIT  
Thermal Resistance  
Junction to Ambient Air  
R
–
–
300(1)  
°C/W  
Volts  
ΘJA  
Forward Voltage  
V
–
–
1.1  
F
at I = 200 mA  
F
NOTES:  
Valid provided that leads at a distance of 10 mm from case are kept at ambient temperature.  
1/21/99  
1N5225 THRU 1N5267  
ELECTRICAL CHARACTERISTICS  
Ratings at 25°C ambient temperature unless otherwise specified.  
Maximum Zener impedance(1)  
Maximum  
Reverse Leakage Current  
Nominal  
Zener  
Typical  
Temperature  
Coefficient  
Maximum  
Regulator  
Current(2)  
Test  
Current  
Voltage(3)  
at  
at  
at  
I
(mA)  
ZT  
Test Voltage  
I
Z
=0.25mA  
K
I
ZT  
I
ZT  
ZT  
(Ω)  
V
R
(V)  
I
(mA)  
ZM  
Type  
V (V)  
Z
Z (Ω)  
ZK  
α
(% / K)  
Z
VZ  
I (µA)  
R
1N5225  
1N5226  
1N5227  
1N5228  
1N5229  
1N5230  
1N5231  
1N5232  
1N5233  
1N5234  
1N5235  
1N5236  
1N5237  
1N5238  
1N5239  
1N5240  
1N5241  
1N5242  
1N5243  
1N5244  
1N5245  
1N5246  
1N5247  
1N5248  
1N5249  
1N5250  
1N5251  
1N5252  
1N5253  
1N5254  
1N5255  
1N5256  
1N5257  
1N5258  
1N5259  
1N5260  
1N5261  
1N5262  
1N5263  
1N5264  
1N5265  
1N5266  
1N5267  
3.0  
20  
29  
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  
50  
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  
152  
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  
28  
24  
23  
22  
19  
17  
11  
7
25  
15  
138  
126  
115  
106  
97  
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  
10  
11  
12  
13  
14  
14  
15  
17  
18  
19  
21  
21  
23  
25  
27  
30  
33  
36  
39  
43  
46  
47  
52  
56  
32  
600  
30  
600  
28  
600  
27  
600  
25  
600  
24  
600  
23  
600  
21  
600  
19.1  
18.2  
16.8  
16.2  
15.1  
13.8  
12.6  
11.6  
10.6  
9.7  
8.9  
–
600  
600  
600  
600  
700  
700  
800  
900  
1000  
1100  
1300  
1400  
1400  
1600  
1700  
–
–
–
–
NOTES:  
(1) The Zener impedance is derived from the 1 kHz 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 leads at a distance of 10 mm from case are kept at ambient temperature  
)
(3) Measured with device junction in thermal equilibrium  
RATINGS AND CHARACTERISTIC CURVES 1N5225 THRU 1N5267