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1N5221B THRU 1N5278B
SILICON ZENER DIODES 500mW, 2.4 THRU 170 VOLT
5% TOLERANCE
w w w. c e n t r a l s e m i . c o m
DESCRIPTION: The CENTRAL SEMICONDUCTOR 1N5221B series silicon Zener diodes are highly reliable voltage regulators designed for use in industrial, commercial, entertainment and computer applications.
MARKING: Devices shall either be marked with the prefix ‘C’ followed by the full part number or by the marking code in the Electrical Characteristics Table.
DO-35 CASE
MAXIMUM RATINGS: (TL=75°C) Power Dissipation
Operating and Storage Junction Temperature
VZ Tolerance: Part number with “B” suffix VZ Tolerance: Part number with “C” suffix VZ Tolerance: Part number with “D” suffix
SYMBOL PD
TJ, Tstg
500 -65 to +200
±5 ±2 ±1
UNITS mW °C % % %
ELECTRICAL CHARACTERISTICS: (TA=25°C) VF=1.2V MAX @ IF=200mA (for all types)
TYPE
1N5221B 1N5222B 1N5223B 1N5224B 1N5225B 1N5226B 1N5227B 1N5228B 1N5229B 1N5230B 1N5231B 1N5232B 1N5233B 1N5234B 1N5235B 1N5236B 1N5237B 1N5238B 1N5239B 1N5240B 1N5241B 1N5242B 1N5243B 1N5244B 1N5245B 1N5246B
ZENER VOLTAGE VZ @ IZT MIN NOM MAX
V
V
V
2.280
2.4
2.520
2.375
2.5
2.625
2.565
2.7
2.835
2.660
2.8
2.940
2.850
3.0
3.150
3.135
3.3
3.465
3.420
3.6
3.780
3.705
3.9
4.095
4.085
4.3
4.515
4.465
4.7
4.935
4.845
5.1
5.355
5.320
5.6
5.880
5.700
6.0
6.300
5.890
6.2
6.510
6.460
6.8
7.140
7.125
7.5
7.875
7.790
8.2
8.610
8.265
8.7
9.135
8.645
9.1
9.555
9.500
10
10.50
10.45
11
11.55
11.40
12
12.60
12.35
13
13.65
13.30
14
14.70
14.25
15
15.75
15.20
16
16.80
TEST CURRENT
MAXIMUM ZENER IMPEDANCE
IZT
ZZT @ IZT ZZK @ IZK
mA
Ω
Ω
mA
20
30
1200 0.25
20
30
1250 0.25
20
30
1300 0.25
20
30
1400 0.25
20
29
1600 0.25
20
28
1600 0.25
20
24
1700 0.25
20
23
1900 0.25
20
22
2000 0.25
20
19
1900 0.25
20
17
1600 0.25
20
11
1600 0.25
20
7.0
1600 0.25
20
7.0
1000 0.25
20
5.0
750 0.25
20
6.0
500 0.25
20
8.0
500 0.25
20
8.0
600 0.25
20
10
600 0.25
20
17
600 0.25
20
22
600 0.25
20
30
600 0.25
9.5
13
600 0.25
9.0
15
600 0.25
8.5
16
600 0.25
7.8
17
600 0.25
MAXIMUM REVERSE CURRENT
IR @ VR μA V 100 1.0 100 1.0 75 1.0 75 1.0 50 1.0 25 1.0 15 1.0 10 1.0 5.0 1.0 5.0 2.0 5.0 2.0 5.0 3.0 5.0 3.5 5.0 4.0 3.0 5.0 3.0 6.0 3.0 6.5 3.0 6.5 3.0 7.0 3.0 8.0 2.0 8.4 1.0 9.1 0.5 9.9 0.1 10 0.1 11 0.1 12
MAXIMUM TEMPERATURE COEFFICIENT
VZ %/°C -0.085 -0.085 -0.080 -0.080 -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
MARKING CODE
C5221B C5222B C5223B C5224B C5225B C5226B C5227B C5228B C5229B C5230B C5231B C5232B C5233B C5234B C5235B C5236B C5237B C5238B C5239B C5240B C5241B C5242B C5243B C5244B C5245B C5246B
R5 (8-May 2020)
1N5221B THRU 1N5278B
SILICON ZENER DIODES 500mW, 2.4 THRU 170 VOLT
5% TOLERANCE
ELECTRICAL CHARACTERISTICS - Continued: (TA=25°C) VF=1.2V MAX @ IF=200mA (for all types)
TYPE
ZENER VOLTAGE
VZ @ IZT MIN NOM MAX
V
V
V
TEST CURRENT
MAXIMUM ZENER IMPEDANCE
IZT
ZZT @ IZT ZZK @ IZK
mA
Ω
Ω
mA
MAXIMUM REVERSE CURRENT
IR @ VR μA V
MAXIMUM TEMPERATURE COEFFICIENT
VZ %/°C
MARKING CODE
1N5247B 16.15
17
17.85
7.4
19
600 0.25 0.1 13
+0.084
C5247B
1N5248B 17.10
18
18.90
7.0
21
600 0.25 0.1 14
+0.085
C5248B
1N5249B 18.05
19
19.95
6.6
23
600 0.25 0.1 14
+0.086
C5249B
1N5250B 19.00
20
21.00
6.2
25
600 0.25 0.1 15
+0.086
C5250B
1N5251B 20.90
22
23.10
5.6
29
600 0.25 0.1 17
+0.087
C5251B
1N5252B 22.80
24
25.20
5.2
33
600 0.25 0.1 18
+0.088
C5252B
1N5253B 23.75
25
26.25
5.0
35
600 0.25 0.1 19
+0.089
C5253B
1N5254B 25.65
27
28.35
4.6
41
600 0.25 0.1 21
+0.090
C5254B
1N5255B 26.60
28
29.40
4.5
44
600 0.25 0.1 21
+0.091
C5255B
1N5256B 28.50
30
31.50
4.2
49
600 0.25 0.1 23
+0.091
C5256B
1N5257B 31.35
33
34.65
3.8
58
700 0.25 0.1 25
+0.092
C5257B
1N5258B 34.20
36
37.80
3.4
70
700 0.25 0.1 27
+0.093
C5258B
1N5259B 37.05
39
40.95
3.2
80
800 0.25 0.1 30
+0.094
C5259B
1N5260B 40.85
43
45.15
3.0
93
900 0.25 0.1 33
+0.095
C5260B
1N5261B 44.65
47
49.35
2.7
105
1000 0.25 0.1 36
+0.095
C5261B
1N5262B 48.45
51
53.55
2.5
125
1100 0.25 0.1 39
+0.096
C5262B
1N5263B 53.20
56
58.80
2.2
150
1300 0.25 0.1 43
+0.096
C5263B
1N5264B 57.00
60
63.00
2.1
170
1400 0.25 0.1 46
+0.097
C5264B
1N5265B 58.90
62
65.10
2.0
185
1400 0.25 0.1 47
+0.097
C5265B
1N5266B 64.60
68
71.40
1.8
230
1600 0.25 0.1 52
+0.097
C5266B
1N5267B 71.25
75
78.75
1.7
270
1700 0.25 0.1 56
+0.098
C5267B
1N5268B 77.90
82
86.10
1.5
330
2000 0.25 0.1 62
+0.098
C5268B
1N5269B 82.65
87
91.35
1.4
370
2200 0.25 0.1 68
+0.099
C5269B
1N5270B 86.45
91
95.55
1.4
400
2300 0.25 0.1 69
+0.099
C5270B
1N5271B 95.00 100 105.0
1.3
500
2600 0.25 0.1 76
+0.110
C5271B
1N5272B .