1N5221B Series
Surface Mount Zener Diodes
P b
Lead(Pb)-Free
SMALL SIGNAL
ZENER DIODES
0.5WATTS
Features:
* High Rliability
* Very Sharp Reverse Characteristic
* Low Reverse Current Level
* VZ-Tolerance ± 5%
Mechanical Data:
* Voltage stabilization
*Case : DO-35 Glass Case
*Weight : Approx 0.13 gram
DO-35
DO-35 Outline Dimensions
Unit:mm
C
D
A
B
A
A
DIM
DO-35
Min
26.0
Max
-
Min
-
B
Max
4.20
Min
-
C
Max
0.55
Min
-
D
Max
2.0
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1N5221B Series
Maximum Ratings and Electrical Characteristics
(TA=25°C Unless Otherwise Noted)
Parameter
Power dissipation
Z-current
Junction ambient
Junction temperature
Storage temperature range
I=9.5mm(3/8”)T
L
=constant
T
amb
≤ 75°C
Symbol
P
V
I
Z
R
θJA
T
j
T
stg
Value
500
P
V
/V
Z
300
200
-65~+200
Unit
mW
mA
K/W
°C
°C
Electrical Characteristics
Parameter
Forward voltage
I
F
=200mA
Symbol
V
F
Min
-
Typ
-
Max
1.1
Unit
V
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1N5221B Series
V
Znom1)
I
ZT
for
r
zjT
r
zjK
@ I
ZK
I
R
@
V
R
TK
VZ
V
mA
Ω
Ω
mA
μA
V
%/K
1N5221B
2.4
20
<30
<1200
0.25
<100
1.0
<-0.085
1N5222B
2.5
20
<30
<1250
0.25
<100
1.0
<-0.085
1N5223B
2.7
20
<30
<1300
0.25
<75
1.0
<-0.080
1N5224B
2.8
20
<30
<1400
0.25
<75
1.0
<-0.080
1N5225B
3.0
20
<29
<1600
0.25
<50
1.0
<-0.075
1N5226B
3.3
20
<28
<1600
0.25
<25
1.0
<-0.070
1N5227B
3.6
20
<24
<1700
0.25
<15
1.0
<-0.065
1N5228B
3.9
20
<23
<1900
0.25
<10
1.0
<-0.060
1N5229B
4.3
20
<22
<2000
0.25
<5
1.0
<+0.055
1N5230B
4.7
20
<19
<1900
0.25
<5
2.0
<+0.030
1N5231B
5.1
20
<17
<1600
0.25
<5
2.0
<+0.030
1N5232B
5.6
20
<11
<1600
0.25
<5
3.0
<+0.038
1N5233B
6.0
20
<7
<1600
0.25
<5
3.5
<+0.038
1N5234B
6.2
20
<7
<1000
0.25
<5
4.0
<+0.045
1N5235B
6.8
20
<5
<750
0.25
<3
5.0
<+0.050
1N5236B
7.5
20
<6
<500
0.25
<3
6.0
<+0.058
1N5237B
8.2
20
<8
<500
0.25
<3
6.5
<+0.062
1N5238B
8.7
20
<8
<600
0.25
<3
6.5
<+0.065
1N5239B
9.1
20
<10
<600
0.25
<3
7.0
<+0.068
1N5240B
10
20
<17
<600
0.25
<3
8.0
<+0.075
1N5241B
11
20
<22
<600
0.25
<2
8.4
<+0.076
1N5242B
12
20
<30
<600
0.25
<1
9.1
<+0.077
1N5243B
13
9.5
<13
<600
0.25
<0.5
9.9
<+0.079
1N5244B
14
9.0
<15
<600
0.25
<0.1
10
<+0.082
1N5245B
15
8.5
<16
<600
0.25
<0.1
11
<+0.082
1N5246B
16
7.8
<17
<600
0.25
<0.1
12
<+0.083
1N5247B
17
7.4
<19
<600
0.25
<0.1
13
<+0.084
1N5248B
18
7.0
<21
<600
0.25
<0.1
14
<+0.085
1N5249B
19
6.6
<23
<600
0.25
<0.1
15
<+0.086
1N5250B
20
6.2
<25
<600
0.25
<0.1
16
<+0.086
1N5251B
22
5.6
<29
<600
0.25
<0.1
17
<+0.087
1N5252B
24
5.2
<33
<600
0.25
<0.1
18
<+0.088
1N5253B
25
5.0
<35
<600
0.25
<0.1
19
<+0.089
1N5254B
27
4.6
<41
<600
0.25
<0.1
21
<+0.090
1N5255B
28
4.5
<44
<600
0.25
<0.1
21
<+0.091
1N5256B
30
4.2
<49
<600
0.25
<0.1
23
<+0.091
1N5257B
33
3.8
<58
<700
0.25
<0.1
25
<+0.092
1N5258B
36
3.4
<70
<700
0.25
<0.1
27
<+0.093
1N5259B
39
3.2
<80
<800
0.25
<0.1
30
<+0.094
1N5260B
43
3.0
<93
<900
0.25
<0.1
33
<+0.095
1N5261B
47
2.7
<105
<1000
0.25
<0.1
36
<+0.095
1N5262B
51
2.5
<125
<1100
0.25
<0.1
39
<+0.096
1N5263B
56
2.2
<150
<1300
0.25
<0.1
43
<+0.096
1N5264B
60
2.1
<170
<1400
0.25
<0.1
46
<+0.097
1N5265B
62
2.0
<185
<1400
0.25
<0.1
47
<+0.097
1N5266B
68
1.8
<230
<1600
0.25
<0.1
52
<+0.097
1N5267B
75
1.7
<270
<1700
0.25
<0.1
58
<+0.098
1) Based on DC-measurement at thermal equilibrium while maintaining the lead temperature(T
L
)at 30℃,
Type
9.5mm(3/8”) from the diode body.
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