DIODES 1N5255B

1N5221B - 1N5267B
500mW EPITAXIAL ZENER DIODE
Features
·
·
·
·
·
·
500mW Power Dissipation
High Stability
Low Noise
Surface Mount Equivalents Available
Hermetic Package
VZ - Tolerance ±5%
B
A
·
·
·
C
D
Mechanical Data
·
·
A
DO-35
Case: DO-35, Glass
Terminals: Solderable per MIL-STD-202,
Method 208
Polarity: Cathode Band
Marking: Type Number
Weight: 0.13 grams (approx.)
Dim
Min
Max
A
25.40
¾
B
¾
4.00
C
¾
0.60
D
¾
2.00
All Dimensions in mm
Maximum Ratings and Electrical Characteristics
Characteristic
Power Dissipation (Note 1)
Thermal Resistance, Junction to Ambient Air (Note 1)
Forward Voltage
@ IF = 200mA
Operating and Storage Temperature Range
Notes:
@ TA = 25°C unless otherwise specified
Symbol
Value
Unit
Pd
500
mW
RqJA
300
°C/W
VF
1.1
V
Tj, TSTG
-65 to +200
°C
1. Valid provided that leads are kept at TL £75°C with lead length = 9.5mm (3/8”) from case; derate above 75°C.
DS18006 Rev. 14 - 2
1 of 2
1N5221B - 1N5267B
Electrical Characteristics
@ TA = 25°C unless otherwise specified
Zener Voltage Range
(Note 2)
Test
Current
VZ @ IZT
IZT
Type
Number
Maximum Zener
Impedance
ZZT @ IZT
ZZK @ IZK =
0.25mA
Maximum Reverse
Current
IR
@VR
Maximum
Temperature
Coefficient
@ IZT
Nom (V)
Min (V)
Max (V)
mA
W
W
µA
V
%/°C
1N5221B
2.4
2.28
2.52
20
30
1200
100
1.0
-0.085
1N5222B
2.5
2.38
2.63
20
30
1250
100
1.0
-0.085
1N5223B
2.7
2.57
2.84
20
30
1300
75
1.0
-0.080
1N5224B
2.8
2.66
2.94
20
30
1400
75
1.0
-0.080
1N5225B
3.0
2.85
3.15
20
29
1600
50
1.0
-0.075
1N5226B
3.3
3.14
3.47
20
28
1600
25
1.0
-0.070
1N5227B
3.6
3.42
3.78
20
24
1700
15
1.0
-0.065
1N5228B
3.9
3.71
4.10
20
23
1900
10
1.0
-0.060
1N5229B
4.3
4.09
4.52
20
22
2000
5.0
1.0
+0.055
1N5230B
4.7
4.47
4.94
20
19
1900
5.0
2.0
+0.030
1N5231B
5.1
4.85
5.36
20
17
1600
5.0
2.0
+0.030
1N5232B
5.6
5.32
5.88
20
11
1600
5.0
3.0
+0.038
1N5233B
6.0
5.70
6.30
20
7.0
1600
5.0
3.5
+0.038
1N5234B
6.2
5.89
6.51
20
7.0
1000
5.0
4.0
+0.045
1N5235B
6.8
6.46
7.14
20
5.0
750
3.0
5.0
+0.050
1N5236B
7.5
7.13
7.88
20
6.0
500
3.0
6.0
+0.058
1N5237B
8.2
7.79
8.61
20
8.0
500
3.0
6.5
+0.062
1N5238B
8.7
8.27
9.14
20
8.0
600
3.0
6.5
+0.065
1N5239B
9.1
8.65
9.56
20
10
600
3.0
7.0
+0.068
1N5240B
10
9.50
10.50
20
17
600
3.0
8.0
+0.075
1N5241B
11
10.45
11.55
20
22
600
2.0
8.4
+0.076
1N5242B
12
11.40
12.60
20
30
600
1.0
9.1
+0.077
1N5243B
13
12.35
13.65
9.5
13
600
0.5
9.9
+0.079
1N5244B
14
13.30
14.70
9.0
15
600
0.1
10
+0.082
1N5245B
15
14.25
15.75
8.5
16
600
0.1
11
+0.082
1N5246B
16
15.20
16.80
7.8
17
600
0.1
12
+0.083
1N5247B
17
16.15
17.85
7.4
19
600
0.1
13
+0.084
1N5248B
18
17.10
18.90
7.0
21
600
0.1
14
+0.085
1N5249B
19
18.05
19.95
6.6
23
600
0.1
14
+0.086
1N5250B
20
19.00
21.00
6.2
25
600
0.1
15
+0.086
1N5251B
22
20.90
23.10
5.6
29
600
0.1
17
+0.087
1N5252B
24
22.80
25.20
5.2
33
600
0.1
18
+0.087
1N5253B
25
23.75
26.25
5.0
35
600
0.1
19
+0.089
1N5254B
27
25.65
28.35
4.6
41
600
0.1
21
+0.090
1N5255B
28
26.60
29.40
4.5
44
600
0.1
21
+0.091
1N5256B
30
28.50
31.50
4.2
49
600
0.1
23
+0.091
1N5257B
33
31.35
34.65
3.8
58
700
0.1
25
+0.092
1N5258B
36
34.20
37.80
3.4
70
700
0.1
27
+0.093
1N5259B
39
37.05
40.95
3.2
80
800
0.1
30
+0.094
1N5260B
43
40.85
45.15
3.0
93
900
0.1
33
+0.095
1N5261B
47
44.65
49.35
2.7
105
1000
0.1
36
+0.095
1N5262B
51
48.45
53.55
2.5
125
1100
0.1
39
+0.096
1N5263B
56
53.20
58.80
2.2
150
1300
0.1
43
+0.096
1N5264B
60
57.00
63.00
2.1
170
1400
0.1
46
+0.097
1N5265B
62
58.90
65.10
2.0
185
1400
0.1
47
+0.097
1N5266B
68
64.60
71.40
1.8
230
1600
0.1
52
+0.097
1N5267B
75
71.25
78.75
1.7
270
1700
0.1
56
+0.098
Notes:
2. Based on dc measurement at thermal equilibrium; lead length = 9.5mm (3/8”); thermal resistance of heat sink = 30°C/W.
DS18006 Rev. 14 - 2
2 of 2
1N5221B - 1N5267B