Zeners (1N5221B - 1N5279B)
1N5221B-1N5279B Rev. E
2003 Fairchild Semiconductor Corporation
Absolute Maximum Ratings* TA = 25°C unless otherwise noted T olerance = 5%
Electrical Characteristics TA = 25°C unless otherwise noted
NOTES:
1) These ratings are based on a maximum junction temperature of 200 degrees C.
2) These are steady state limits. The factory should be consulted on applications involving pulsed
or low duty cycle operations.
*These ratings are limiting values above which the serviceability of the diode may be impaired.
**Non-recurrent square wave PW= 8.3 ms, T A= 50 degrees C.
Zeners
1N5221B - 1N5279B
Symbol
Parameter
Value
Units
PD Power Dissipation
Derate above 75°C 500
4.0 mW
mW/°C
TSTG Storage Temperature Range -65 to +200 °C
TJ Maximum Junction Operating Temperature + 200 °C
Lead Temperature (1/16” from case for 10
seconds) + 230 °C
DO-35 Glass case
COLOR BAND DENOTES CATHODE
Device
VZ
(V)
ZZ
(Ω
ΩΩ
Ω)
IZ
(mA)
ZZK
(Ω
ΩΩ
Ω)
IZK
(mA)
IR
(µ
µµ
µA)
VR
(V)
TC
(%/°
°°
°C)
1N5221B
1N5222B
1N5223B
1N5224B
1N5225B
2.4
2.5
2.7
2.8
3.0
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
1N5226B
1N5227B
1N5228B
1N5229B
1N5230B
3.3
3.6
3.9
4.3
4.7
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
1N5231B
1N5232B
1N5233B
1N5234B
1N5235BT
5.1
5.6
6.0
6.2
6.8
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
2.0
3.0
3.5
4.0
5.0
2.0
3.0
3.5
4.0
5.0
+/- 0.03
0.038
0.038
0.045
0.05
1N5236BT
1N5237BT
1N5238BT
1N5239BT
1N5240BT
7.5
8.2
8.7
9.1
10
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
6.0
6.5
6.5
7.0
8.0
6.0
6.5
6.5
7.0
8.0
0.058
0.062
0.065
0.068
0.075
1N5241BT
1N5242BT
1N5243BT
1N5244BT
1N5245BT
11
12
13
14
15
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
8.4
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
@
@@
Zeners (1N5221B - 1N5279B)
1N5221B-1N5279B Rev. E
2003 Fairchild Semiconductor Corporation
Zeners (1N5221B - 1N5279B)
(continued)
Electrical Characteristics (Continued) TA = 25°C unless otherwise noted
Device
VZ
(V)
ZZ
(Ω
ΩΩ
Ω)
IZ
(mA)
ZZK
(Ω
ΩΩ
Ω)
IZK
(mA)
VR
(V)
IR
(µ
µµ
µA)
TC
(%/°
°°
°C)
1N5246BT
1N5247BT
1N5248BT
1N5249BT
1N5250BT
16
17
18
19
20
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
12
13
14
14
15
0.1
0.1
0.1
0.1
0.1
0.083
0.084
0.085
0.085
0.086
1N5251B
1N5252B
1N5253B
1N5254B
1N5255B
22
24
25
27
28
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
17
18
19
21
21
0.1
0.1
0.1
0.1
0.1
0.087
0.088
0.088
0.089
0.090
1N5256B
1N5257B
1N5258B
1N5259B
1N5260B
30
33
36
39
43
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
23
25
27
30
33
0.1
0.1
0.1
0.1
0.1
0.091
0.092
0.093
0.094
0.095
1N5261B
1N5262B
1N5263B
1N5264B
1N5265B
47
51
56
60
62
105
125
150
170
185
2.7
2.5
2.2
2.1
2.0
1000
1100
1300
1400
1400
0.25
0.25
0.25
0.25
0.25
36
39
43
46
47
0.1
0.1
0.1
0.1
0.1
0.095
0.096
0.096
0.097
0.097
1N5266B
1N5267B
1N5268B
1N5269B
1N5270B
68
75
85
87
91
230
270
330
370
400
1.8
1.7
1.5
1.4
1.4
1600
1700
2000
2200
2300
0.25
0.25
0.25
0.25
0.25
52
56
62
68
69
0.1
0.1
0.1
0.1
0.1
0.097
0.098
0.098
0.099
0.099
1N5271B
1N5272B
1N5273B
1N5274B
1N5275B
100
110
120
130
140
500
750
900
1100
1300
1.3
1.1
1.0
0.95
0.90
2600
3000
4000
4500
4500
0.25
0.25
0.25
0.25
0.25
76
84
91
99
106
0.1
0.1
0.1
0.1
0.1
0.099
0.11
0.11
0.11
0.11
1N5276B
1N5277B
1N5278B
1N5279B
150
160
170
180
1500
1700
1900
2200
0.85
0.80
0.74
0.68
5000
5500
5500
6000
0.25
0.25
0.25
0.25
114
122
129
137
0.1
0.1
0.1
0.1
0.11
0.11
0.11
0.11
V
F Forward Voltage = 1.2 V Max. @ IF = 200 mA
@
@@
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FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER
NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD
DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT
OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT
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The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is
not intended to be an exhaustive list of all such trademarks.
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FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION.
As used herein:
1. Life support devices or systems are devices or
systems which, (a) are intended for surgical implant into
the body, or (b) support or sustain life, or (c) whose
failure to perform when properly used in accordance
with instructions for use provided in the labeling, can be
reasonably expected to result in significant injury to the
user.
2. A critical component is any component of a life
support device or system whose failure to perform can
be reasonably expected to cause the failure of the life
support device or system, or to affect its safety or
effectiveness.
PRODUCT STATUS DEFINITIONS
Definition of Terms
Datasheet Identification Product Status Definition
Advance Information
Preliminary
No Identification Needed
Obsolete
This datasheet contains the design specifications for
product development. Specifications may change in
any manner without notice.
This datasheet contains preliminary data, and
supplementary data will be published at a later date.
Fairchild Semiconductor reserves the right to make
changes at any time without notice in order to improve
design.
This datasheet contains final specifications. Fairchild
Semiconductor reserves the right to make changes at
any time without notice in order to improve design.
This datasheet contains specifications on a product
that has been discontinued by Fairchild semiconductor.
The datasheet is printed for reference information only.
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In Design
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ImpliedDisconnect™
ISOPLANAR™
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Across the board. Around the world.™
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