CE
CHENYI ELECTRONICS
FEATURES
. Standards zener voltage tolerance is 20%. Add suffix "A" for 10%
tolerance and suffix "B" for 5% tolerance other tolerance, non
standards and higher zener voltage upon request.
1N5221 THRU 1N5281
0.5W SILICON PLANAR ZENER DIODES
MECHANICAL DATA
.
Case:
DO-35 glass case
.
Polarity:
Color band denotes cathode end
.
Weight:
Approx. 0.13gram
ABSOLUTE MAXIMUM RATINGS(LIMITING VALUES)(T
A
=25
)
Symbols
Zener current see table "Characteristics"
Power dissipation at T
A
=75
Junction temperature
Storage temperature range
P
tot
T
J
T
STG
Value
Units
500
1)
175
-65 to + 175
mW
1)Valid provided that at a distance of 8mm from case are kept at ambient temperature
ELECTRICAL CHARACTERISTICS(TA=25
)
Symbols
Thermal resistance junction to ambient
Forward voltage
at I
F
=200mA
R
THA
V
F
Min.
Typ.
Max.
0.3
1)
1.1
Units
K/mW
V
1)Valid provided that leads at a distance of 8mm from case are kept at ambient temperature
Copyright @ 2000 SHANGHAI CHENYI ELECTRONICS CO.,LTD
Page 1 of 4
CE
CHENYI ELECTRONICS
1N5221 THRU 1N5281
0.5W SILICON PLANAR ZENER DIODES
1N5221…1N5249 SILICON PLANAR ZENER DIODES
Maximum Reverse
Zener Voltage Range
1)
Type
V
ZNOM 3)
V
1N5221
1N5222
1N5223
1N5224
1N5225
1N5226
1N5227
1N5228
1N5229
1N5230
1N5231
1N5232
1N5233
1N5234
1N5235
1N5236
1N5237
1N5238
1N5239
1N5240
1N5241
1N5242
1N5243
1N5244
1N5245
1N5246
1N5247
1N5248
1N5249
2.4
2.5
2.6
2.8
3.0
3.3
3.6
3.9
4.3
4.7
5.1
5.6
6.0
6.2
6.8
7.5
8.2
8.7
9.1
10
11
12
13
14
15
16
17
18
19
9.5
9.0
8.5
7.8
7.4
7.0
6.6
20
<29
<28
<24
<23
<22
<19
<17
<11
<7
<7
<5
<6
<8
<8
<10
<17
<22
<30
<13
<15
<16
<17
<19
<21
<23
0.1
<600
<2
<1
<0.5
<30
I
ZT
mA
<1200
<1250
<1300
<1400
<1600
<1600
<1700
<1900
<2000
<1900
<1600
<1600
<1600
<1000
<750
<500
<500
3
0.25
5
2.0
2.0
3.0
3.5
4.0
5.0
6.0
6.5
6.5
7.0
8.0
8.4
9.1
9.9
10
11
12
13
14
14
Maximum zener impedance
1)
Leakage Current
Temp.Coefficient
of zener diode
TK
VZ
r
zjt
and
r
zjk
at I
zk
mA
A
<100
<100
<75
<75
<50
<25
<15
<10
I
R 2)
at V
R
V
%/K
<-0.085
<-0.085
<-0.080
<-0.080
1.0
<-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
<+0.084
<+0.085
<+0.086
Copyright @ 2000 SHANGHAI CHENYI ELECTRONICS CO.,LTD
Page 2 of 4
CE
CHENYI ELECTRONICS
1N5221 THRU 1N5281
0.5W SILICON PLANAR ZENER DIODES
1N5250…1N5281 SILICON PLANAR ZENER DIODES
Zener Voltage Range
1)
Type
V
ZNOM 3)
V
1N5250
1N5251
1N5252
1N5253
1N5254
1N5255
1N5256
1N5257
1N5258
1N5259
1N5260
1N5261
1N5262
1N5263
1N5264
1N5265
1N5266
1N5267
1N5268
1N5269
1N5270
1N5271
1N5272
1N5273
1N5274
1N5275
1N5276
1N5277
1N5278
1N5279
1N5280
1N5281
20
22
24
25
27
28
30
33
36
39
43
47
51
56
60
62
68
75
82
87
91
100
110
120
130
140
150
160
170
180
190
200
I
ZT
mA
6.2
5.6
5.2
5.0
4.6
4.5
4.2
3.8
3.4
3.2
3.0
2.7
2.5
2.2
2.1
2.0
1.8
1.7
1.5
1.4
1.4
1.3
1.2
1.0
0.95
0.90
0.85
0.80
0.74
0.68
0.66
0.65
<25
<29
<33
<35
<41
<44
<49
<58
<70
<80
<93
<105
<125
<150
<170
<185
<230
<270
<330
<370
<400
<500
<700
<950
<1100
<1300
<1500
<1700
<1900
<2200
<2400
<2500
<700
<700
<800
<900
<1000
<1100
<1300
<1400
<1400
<1600
<1700
<2000
<2200
<2300
0.25
<0.1
<600
Maximum zener impedance
1)
Maximum Reverse
Leakage Current
Temp.Coefficient
of zener diode
TK
VZ
V
15
17
18
19
21
21
23
25
27
30
33
36
39
43
46
47
52
56
62
68
69
75
83
90
98
105
113
120
127
135
142
150
%/K
<+0.086
<+0.087
<+0.088
<+0.089
<+0.090
<+0.091
<+0.091
<+0.092
<+0.093
<+0.094
<+0.095
<+0.095
<+0.096
<+0.096
<+0.097
<+0.097
<+0.097
<+0.098
<+0.098
<+0.099
<+0.099
<+0.100
<+0.100
<+0.100
<+0.110
<+0.110
<+0.110
<+0.115
<+0.115
<+0.120
<+0.120
<+0.120
r
zjt
and
r
zjk
at I
zk
mA
A
I
R 2)
at V
R
(1)The Zener impedance is derived from the 60Hz Ac voltage which results when an AC current having an RMS value equal to 10% of
the Zener current (IZT) is suprimposed on IZT or IZK Zener impedance is measured at two points to insure a sharp knee on the
breakdown curve and to eliminate unstable units.
(2)Valid provided that leads at a distance of 8mm from case are kept at ambient temperature.
(3) Measured under thermal equilibrium and DC test conditions.
Copyright @ 2000 SHANGHAI CHENYI ELECTRONICS CO.,LTD
Page 3 of 4
CE
CHENYI ELECTRONICS
1N5221 THRU 1N5281
0.5W SILICON PLANAR ZENER DIODES
1N5221…1N5281 SILICON PLANAR ZENER DIODES
Admissible power dissipation versus ambient temperature
(Valid provided that leads at a distance of 10mm from case
are kept at ambient temperature)
Copyright @ 2000 SHANGHAI CHENYI ELECTRONICS CO.,LTD
Page 4 of 4
