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Semiconductor data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s  
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is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.  
December 2018  
1N5221B - 1N5263B  
Zener Diodes  
Tolerance = 5%  
DO-35 Glass case  
COLOR BAND DENOTES CATHODE  
Absolute Maximum Ratings  
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be opera-  
ble above the recommended operating conditions and stressing the parts to these levels is not recommended. In addi-  
tion, extended exposure to stresses above the recommended operating conditions may affect device reliability. The  
absolute maximum ratings are stress ratings only. Values are at TA = 25°C unless otherwise noted.  
Symbol  
PD  
Parameter  
Value  
500  
Unit  
mW  
mW°C  
°C  
Power Dissipation  
Derate above 50°C  
4.0  
TSTG  
TJ  
Storage Temperature Range  
-65 to +200  
-65 to +200  
+230  
Operating Junction Temperature Range  
Lead Temperature (1/16 inch from case for 10 s)  
°C  
°C  
Note:  
1. These ratings are limiting values above which the serviceability of any semiconductor device may be impaired.  
Non-recurrent square wave Pulse Width = 8.3 ms, TA = 50°C  
© 2018 Semiconductor Components Industries, LLC.  
1N5221B - 1N5263B Rev. 3  
www.onsemi.com  
Electrical Characteristics  
Values are at TA = 25°C unless otherwise noted .  
(2)  
VZ (V) @ IZ  
TC  
(%/°C)  
Device  
ZZ (Ω) @ IZ (mA) ZZK (Ω) @ IZK(mA) IR (μA) @ VR (V)  
Min.  
Typ.  
Max.  
1N5221B  
1N5222B  
1N5223B  
1N5224B  
1N5225B  
2.28  
2.375  
2.565  
2.66  
2.4  
2.5  
2.7  
2.8  
3
2.52  
2.625  
2.835  
2.94  
30  
30  
30  
30  
29  
20  
20  
20  
20  
20  
1,200  
1,250  
1,300  
1,400  
1,600  
0.25  
0.25  
0.25  
0.25  
0.25  
100  
100  
75  
75  
50  
1.0  
1.0  
1.0  
1.0  
1.0  
-0.085  
-0.085  
-0.080  
-0.080  
-0.075  
2.85  
3.15  
1N5226B  
1N5227B  
1N5228B  
1N5229B  
1N5230B  
3.135  
3.42  
3.705  
4.085  
4.465  
3.3  
3.6  
3.9  
4.3  
4.7  
3.465  
3.78  
4.095  
4.515  
4.935  
28  
24  
23  
22  
19  
20  
20  
20  
20  
20  
1,600  
1,700  
1,900  
2,000  
1,900  
0.25  
0.25  
0.25  
0.25  
0.25  
25  
15  
10  
5.0  
5.0  
1.0  
1.0  
1.0  
1.0  
2.0  
-0.07  
-0.065  
-0.06  
+/-0.055  
+/-0.03  
1N5231B  
1N5232B  
1N5233B  
1N5234B  
1N5235B  
4.845  
5.32  
5.7  
5.89  
6.46  
5.1  
5.6  
6
6.2  
6.8  
5.355  
5.88  
6.3  
6.51  
7.14  
17  
11  
7.0  
7.0  
5.0  
20  
20  
20  
20  
20  
1,600  
1,600  
1,600  
1,000  
750  
0.25  
0.25  
0.25  
0.25  
0.25  
5.0  
5.0  
5.0  
5.0  
3.0  
2.0  
3.0  
3.5  
4.0  
5.0  
+/-0.03  
0.038  
0.038  
0.045  
0.05  
1N5236B  
1N5237B  
1N5238B  
1N5239B  
1N5240B  
7.125  
7.79  
8.265  
8.645  
9.5  
7.5  
8.2  
8.7  
9.1  
10  
7.875  
8.61  
9.135  
9.555  
10.5  
6.0  
8.0  
8.0  
10  
20  
20  
20  
20  
20  
500  
500  
600  
600  
600  
0.25  
0.25  
0.25  
0.25  
0.25  
3.0  
3.0  
3.0  
3.0  
3.0  
6.0  
6.5  
6.5  
7.0  
8.0  
0.058  
0.062  
0.065  
0.068  
0.075  
17  
1N5241B  
1N5242B  
1N5243B  
1N5244B  
1N5245B  
10.45  
11.4  
12.35  
13.3  
11  
12  
13  
14  
15  
11.55  
12.6  
13.65  
14.7  
22  
30  
13  
15  
16  
20  
20  
9.5  
9.0  
8.5  
600  
600  
600  
600  
600  
0.25  
0.25  
0.25  
0.25  
0.25  
2.0  
1.0  
0.5  
0.1  
0.1  
8.4  
9.1  
9.9  
10  
0.076  
0.077  
0.079  
0.080  
0.082  
14.25  
15.75  
11  
1N5246B  
1N5247B  
1N5248B  
1N5249B  
1N5250B  
15.2  
16.15  
17.1  
18.05  
19  
16  
17  
18  
19  
20  
16.8  
17.85  
18.9  
19.95  
21  
17  
19  
21  
23  
25  
7.8  
7.4  
7.0  
6.6  
6.2  
600  
600  
600  
600  
600  
0.25  
0.25  
0.25  
0.25  
0.25  
0.1  
0.1  
0.1  
0.1  
0.1  
12  
13  
14  
14  
15  
0.083  
0.084  
0.085  
0.085  
0.086  
1N5251B  
1N5252B  
1N5253B  
1N5254B  
1N5255B  
20.9  
22.8  
23.75  
25.65  
26.6  
22  
24  
25  
27  
28  
23.1  
25.2  
26.25  
28.35  
29.4  
29  
33  
35  
41  
44  
5.6  
5.2  
5.0  
4.6  
4.5  
600  
600  
600  
600  
600  
0.25  
0.25  
0.25  
0.25  
0.25  
0.1  
0.1  
0.1  
0.1  
0.1  
17  
18  
19  
21  
21  
0.087  
0.088  
0.088  
0.089  
0.090  
1N5256B  
1N5257B  
1N5258B  
1N5259B  
1N5260B  
28.5  
31.35  
34.2  
37.05  
40.85  
30  
33  
36  
39  
43  
31.5  
34.65  
37.8  
40.95  
45.15  
49  
58  
70  
80  
93  
4.2  
3.8  
3.4  
3.2  
3.0  
600  
700  
700  
800  
900  
0.25  
0.25  
0.25  
0.25  
0.25  
0.1  
0.1  
0.1  
0.1  
0.1  
23  
25  
27  
30  
33  
0.09  
0.092  
0.093  
0.094  
0.095  
1N5261B  
1N5262B  
1N5263B  
44.65  
48.45  
53.2  
47  
51  
56  
49.35  
53.55  
58.8  
105  
125  
150  
2.7  
2.5  
2.2  
1000  
1100  
1300  
0.25  
0.25  
0.25  
0.1  
0.1  
0.1  
36  
39  
43  
0.095  
0.096  
0.096  
VF Forward Voltage = 1.2V Max. @ IF = 200mA  
Note:  
2. Zener Voltage (VZ)  
The zener voltage is measured with the device junction in the thermal equilibrium at the lead temperature (TL)  
at 30°C ± 1°C and 3/8” lead length.  
© 2018 Semiconductor Components Industries, LLC.  
1N5221B - 1N5263B Rev. 3  
www.onsemi.com  
2
Top Mark Information  
Device  
Line 1  
Line 2  
Line 3  
1N5221B  
1N5222B  
1N5223B  
1N5224B  
1N5225B  
LOGO  
LOGO  
LOGO  
LOGO  
LOGO  
22  
22  
22  
22  
22  
1B  
2B  
3B  
4B  
5B  
1N5226B  
1N5227B  
1N5228B  
1N5229B  
1N5230B  
LOGO  
LOGO  
LOGO  
LOGO  
LOGO  
22  
22  
22  
22  
23  
6B  
7B  
8B  
9B  
0B  
1N5231B  
1N5232B  
1N5233B  
1N5234B  
1N5235B  
LOGO  
LOGO  
LOGO  
LOGO  
LOGO  
23  
23  
23  
23  
23  
1B  
2B  
3B  
4B  
5B  
1N5236B  
1N5237B  
1N5238B  
1N5239B  
1N5240B  
LOGO  
LOGO  
LOGO  
LOGO  
LOGO  
23  
23  
23  
23  
24  
6B  
7B  
8B  
9B  
0B  
1N5241B  
1N5242B  
1N5243B  
1N5244B  
1N5245B  
LOGO  
LOGO  
LOGO  
LOGO  
LOGO  
24  
24  
24  
24  
24  
1B  
2B  
3B  
4B  
5B  
1N5246B  
1N5247B  
1N5248B  
1N5249B  
1N5250B  
LOGO  
LOGO  
LOGO  
LOGO  
LOGO  
24  
24  
24  
24  
25  
6B  
7B  
8B  
9B  
0B  
1N5251B  
1N5252B  
1N5253B  
1N5254B  
1N5255B  
LOGO  
LOGO  
LOGO  
LOGO  
LOGO  
25  
25  
25  
25  
25  
1B  
2B  
3B  
4B  
5B  
1N5256B  
1N5257B  
1N5258B  
1N5259B  
1N5260B  
LOGO  
LOGO  
LOGO  
LOGO  
LOGO  
25  
25  
25  
25  
26  
6B  
7B  
8B  
9B  
0B  
1N5261B  
1N5262B  
1N5263B  
LOGO  
LOGO  
LOGO  
26  
26  
26  
1B  
2B  
3B  
© 2018 Semiconductor Components Industries, LLC.  
1N5221B - 1N5263B Rev. 3  
www.onsemi.com  
3
Top Mark Information (Continued)  
1st line: ON Semiconductor Logo  
22  
2
nd line: Device Name - 4th to 5th characters of the device name.  
or 5th to 6th characters for BZXyy series  
3
rd line: Device Name - 6th to 7th characters of the device name.  
or Voltage rating for BZXyy series  
1B  
General Requirements:  
1.0 Cathode Band  
2.0 First Line: ON Semiconductor Logo  
3.0 Second Line: Device name - For 1Nxx series: 4th to 5th characters of the device name.  
For BZxx series: 5th to 6th characters of the device name.  
4.0 Third Line: Device name - For 1Nxx series: 6th to 7th characters of the device name.  
For BZXyy series: Voltage rating  
5.0 Devices shall be marked as required in the device specification (PID or ON Test Spec).  
6.0 Maximum no. of marking lines: 3  
7.0 Maximum no. of digits per line: 2  
8.0 FSC logo must be 20 % taller than the alphanumeric marking and should occupy the 2 characters of the specified  
line.  
9.0 Marking Font: Arial (Except ON Logo)  
10.0 First character of each marking line must be aligned vertically.  
11.0 All device markings must be based on ON Semiconductor device specification.  
© 2018 Semiconductor Components Industries, LLC.  
1N5221B - 1N5263B Rev. 3  
www.onsemi.com  
4
T50 = 25.40 MIN (2X)  
T26 = 14.00 MIN (2X)  
4.56  
3.05  
0.533  
0.460  
NOTES: UNLESS OTHERWISE SPECIFIED  
A) PACKAGE STANDARD REFERENCE:  
JEDEC DO-204, VARIATION AH.  
B) HERMETICALLY SEALED GLASS PACKAGE.  
C) PACKAGE WEIGHT IS 0.137 GRAM.  
D) ALL DIMENSIONS ARE IN MILLIMETERS.  
E) DRAWING FILE NAME: DO35AREV03  
1.91  
1.53  
ON Semiconductor and  
are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries.  
ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patent  
coverage may be accessed at www.onsemi.com/site/pdf/PatentMarking.pdf. ON Semiconductor reserves the right to make changes without further notice to any products herein.  
ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability  
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.  
Buyer is responsible for its products and applications using ON Semiconductor products, including compliance with all laws, regulations and safety requirements or standards,  
regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON Semiconductor data sheets and/or  
specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer  
application by customer’s technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not  
designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification  
in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorized  
application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and  
expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such  
claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. This  
literature is subject to all applicable copyright laws and is not for resale in any manner.  
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