FAIRCHILD 1N5255B

1N5221B - 1N5263B
Zener Diodes
Tolerance = 5%
DO-35 Glass case
COLOR BAND DENOTES CATHODE
Absolute Maximum Ratings *
Symbol
TA = 25°C unless otherwise noted
Parameter
PD
Power Dissipation
Derate above 50°C
TSTG
Storage Temperature Range
TJ
Maximum Junction Operating Temperature
Lead Temperature (1/16” from case for 10 seconds)
Value
500
4.0
Units
mW
mW°C
-65 to +200
°C
+200
°C
+230
°C
* These ratings are limiting values above which the serviceability of the diode may be impaired.
** Non-recurrent square wave PW = 8.3ms, Ta = 50 degrees C.
Electrical Characteristics
Device
TA=25°C unless otherwise noted
VZ (V) @ IZ (Note 1)
1N5221B
1N5222B
1N5223B
1N5224B
1N5225B
Min.
2.28
2.375
2.565
2.66
2.85
Typ.
2.4
2.5
2.7
2.8
3
Max.
2.52
2.625
2.835
2.94
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
1N5231B
1N5232B
1N5233B
1N5234B
1N5235B
4.845
5.32
5.7
5.89
6.46
1N5236B
1N5237B
1N5238B
1N5239B
1N5240B
7.125
7.79
8.265
8.645
9.5
ZZK (Ω) @ IZK (mA)
IR (μA) @ VR (V)
TC
(%/°C)
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
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
2.0
1.0
1.0
1.0
1.0
1.0
-0.07
-0.065
-0.06
+/-0.055
+/-0.03
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
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
17
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
©2007 Fairchild Semiconductor Corporation
1N5221B - 1N5263B Rev. H1
ZZ (Ω) @ IZ (mA)
1
www.fairchildsemi.com
1N5221B - 1N5263B Zener Diodes
June 2007
VZ (V) @ IZ (Note 1)
1N5241B
1N5242B
1N5243B
1N5244B
1N5245B
Min.
10.45
11.4
12.35
13.3
14.25
Typ.
11
12
13
14
15
Max.
11.55
12.6
13.65
14.7
15.75
1N5246B
1N5247B
1N5248B
1N5247B
1N5250B
15.2
16.15
17.1
18.05
19
16
17
18
19
20
1N5251B
1N5252B
1N5253B
1N5254B
1N5255B
20.9
22.8
23.75
25.65
26.6
1N5256B
1N5257B
1N5258B
1N5259B
1N5260B
1N5261B
1N5262B
1N5263B
ZZ (Ω) @ IZ (mA)
ZZK (Ω) @ IZK (mA)
TC
(%/°C)
IR (μA) @ VR (V)
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
0.1
0.1
0.1
0.1
8.4
9.1
9.9
10
11
0.076
0.077
0.079
0.080
0.082
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
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
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
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
Notes:
1.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
Top Mark Information
1N5221B
1N5222B
1N5223B
1N5224B
1N5225B
Device
Line 1
LOGO
LOGO
LOGO
LOGO
LOGO
Line 2
22
22
22
22
22
Line 3
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
2
1N5221B - 1N5263B Rev. H1
www.fairchildsemi.com
1N5221B - 1N5263B Zener Diodes
Device
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
1N5221B - 1N5263B Zener Diodes
1N5246B
1N5247B
1N5248B
1N5247B
1N5250B
Top Mark Information (Continued)
1st line: F - Fairchild Logo
F
22
2nd line: Device Name - 4th to 5th characters of the device name.
or 5th to 6th characters for BZXyy series
1B
3rd line: Device Name - 6th to 7th characters of the device name.
or Voltage rating for BZXyy series
General Requirements:
1.0 Cathode Band
2.0 First Line: F - Fairchild 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 FSC 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 FSC Logo)
10.0 First character of each marking line must be aligned vertically.
11.0 All device markings must be based on Fairchild device specification.
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1N5221B - 1N5263B Rev. H1
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Definition of Terms
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Definition
Advance Information
Formative or In Design
This datasheet contains the design specifications for product development. Specifications may change in any manner without notice.
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First Production
This datasheet contains preliminary data, and supplementary data will
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This datasheet contains final specifications. Fairchild Semiconductor
reserves the right to make changes at any time without notice in order
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Obsolete
Not In Production
This datasheet contains specifications on a product that has been discontinued by Fairchild semiconductor.The datasheet is printed for reference information only.
Rev. I23
4
1N5221B - 1N5263B Rev. H1
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1N5221B - 1N5263B Zener Diodes
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