1N5221B(UR)-1N5281B(UR)
SILICON ZENER DIODES
High-reliability discrete products
and engineering services since 1977
FEATURES
•
•
•
Available as “HR” (high reliability) screened per MIL-PRF-19500, JANTX level. Add “HR” suffix to base part number.
Available as non-RoHS (Sn/Pb plating), standard, and as RoHS by adding “-PBF” suffix. Available in surface mount by adding suffix “UR”
Devices with guaranteed limits on all six parameters are indicated by suffix A for ±10% tolerance, suffix B for a ±5% tolerance, suffix C for a 2% tolerance and suffix D for a 1%
tolerance.
MAXIMUM RATINGS
Operating and Storage Temperature
DC Power Dissipation
-65°C to + 200°C
500 mW
Power Derating
Forward Voltage @ 200mA
3.33 mW/C° above 25°C
1.1 Volts
ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise specified)
Max Reverse Leakage Current
A, B, & D Suffix
Max Zener Impedance
A&B Suffix Only(2)
Test
Current
IZT
Max Zener Voltage
Temp. Coeff.
(A&B Suffix Only)
Non Suffix
Nominal
Zener Voltage
VZ @ IZT
Only
IR
µA
VR
Volts
Part Number (1)
mA
IR @ VR Used For
Suffix A
@
ZZT @ IZT
ZZT @ IZK=0.25mA
Ohms
Volts
αVZ (%/°C)(3)
Ohms
µA
A
B,C &D
1N5221B
1N5222B
1N5223B
1N5224B
1N5225B
2.4
2.5
2.7
2.8
3.0
20
20
20
20
20
30
30
30
30
29
1200
1250
1300
1400
1600
100
100
75
75
50
0.95
1.0
1.0
1.0
1.0
1.0
200
200
150
150
100
-0.085
-0.085
-0.080
-0.080
-0.075
0.95
0.95
0.95
0.95
1N5226B
1N5227B
1N5228B
1N5229B
1N5230B
3.3
3.6
3.9
4.3
4.7
20
20
20
20
20
28
24
23
22
19
1600
1700
1900
2000
1900
25
15
10
5.0
5.0
0.95
0.95
0.95
0.95
1.9
1.0
1.0
1.0
1.0
2.0
100
100
75
50
50
-0.070
-0.065
-0.060
±0.055
±0.030
1N5231B
1N5232B
1N5233B
1N5234B
1N5235B
5.1
5.6
6.0
6.2
6.8
20
20
20
20
20
17
11
7.0
7.0
5.0
1600
1600
1600
1000
750
5.0
5.0
5.0
5.0
3.0
1.9
2.9
3.3
3.8
4.8
2.0
3.0
3.5
4.0
5.0
50
50
50
50
30
±0.030
+0.038
+0.038
+0.045
+0.050
1N5236B
1N5237B
1N5238B
1N5239B
1N5240B
1N5241B
1N5242B
1N5243B
1N5244B
1N5245B
1N5246B
1N5247B
1N5248B
1N5249B
1N5250B
7.5
8.2
8.7
9.1
10
11
12
13
14
15
16
17
18
19
20
20
20
20
20
20
6.0
8.0
8.0
10
17
22
30
13
15
16
17
19
21
23
25
500
500
600
600
600
600
600
600
600
600
600
600
600
600
600
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
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
6.0
6.5
6.5
7.0
8.0
8.4
9.1
9.9
10
11
12
13
14
30
30
30
30
30
30
10
10
10
10
10
10
10
10
10
+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
20
20
9.5
9.0
8.5
7.8
7.4
7.0
6.6
6.2
14
15
1N5251B
1N5252B
1N5253B
1N5254B
1N5255B
22
24
25
27
28
5.6
5.2
5.0
4.6
4.5
29
33
35
41
44
600
600
600
600
600
0.1
0.1
0.1
0.1
0.1
16.2
17.1
18.1
20
17
18
19
21
21
10
10
10
10
10
+0.087
+0.088
+0.089
+0.090
+0.091
20
1N5256B
1N5257B
1N5258B
1N5259B
1N5260B
30
33
36
39
43
4.2
3.8
3.4
3.2
3.0
49
58
70
80
93
600
700
700
800
900
0.1
0.1
0.1
0.1
0.1
22
24
26
29
31
23
25
27
30
33
10
10
10
10
10
+0.091
+0.092
+0.093
+0.094
+0.095
Rev. 20190114