BZX79C
SILICON PLANAR ZENER DIODES
Max. 0.5
Max. 1.9
Min. 27.5
Black
Cathode Band
Black
Part No.
Black
"ST" Brand
XXX
ST
Max. 3.9
Min. 27.5
Glass Case DO-35
Dimensions in mm
Absolute Maximum Ratings (T
a
= 25
O
C)
Parameter
Continuous Forward Current
Power Dissipation
Thermal Resistance Junction to Ambient Air
Junction Temperature
Storage Temperature Range
1)
Symbol
I
F
P
tot
R
θJA
T
j
T
S
Value
250
500
0.3
1)
1)
O
Unit
mA
mW
C/mW
O
- 65 to + 200
- 65 to + 200
C
C
O
Valid provided that leads are kept at ambient temperature at a distance of 8 mm from case.
Characteristics at T
a
= 25
O
C
Parameter
Forward Voltage
at I
F
= 100 mA
Symbol
V
F
Max.
1.5
Unit
V
SEMTECH ELECTRONICS LTD.
®
(Subsidiary
of Sino-Tech International Holdings Limited, a company
listed on the Hong Kong Stock Exchange, Stock Code: 724)
Dated : 25/02/2006
BZX79C
Characteristics at T
a
= 25
O
C
Type
Zener Voltage
1), 3)
Min.
Max.
l
ZT
(mA)
Maximum Zener Impedance
2)
Z
ZT
(Ω) at I
ZT
Maximum Leakage Current
I
R
(µA)
at V
R
(V)
BZX79C2V4
2.2
2.6
5
100
100
1
BZX79C2V7
2.5
2.9
5
100
75
1
BZX79C3V0
2.8
3.2
5
95
50
1
BZX79C3V3
3.1
3.5
5
95
25
1
BZX79C3V6
3.4
3.8
5
90
15
1
BZX79C3V9
3.7
4.1
5
90
10
1
BZX79C4V3
4
4.6
5
90
5
1
BZX79C4V7
4.4
5
5
80
3
2
BZX79C5V1
4.8
5.4
5
60
2
2
BZX79C5V6
5.2
6
5
40
1
2
BZX79C6V2
5.8
6.6
5
10
3
4
BZX79C6V8
6.4
7.2
5
15
2
4
BZX79C7V5
7
7.9
5
15
1
5
BZX79C8V2
7.7
8.7
5
15
0.7
5
BZX79C9V1
8.5
9.6
5
15
0.5
6
BZX79C10
9.4
10.6
5
20
0.2
7
BZX79C11
10.4
11.6
5
20
0.1
8
BZX79C12
11.4
12.7
5
25
0.1
8
BZX79C13
12.4
14.1
5
30
0.1
8
BZX79C15
13.8
15.6
5
30
0.05
10.5
BZX79C16
15.3
17.1
5
40
0.05
11.2
BZX79C18
16.8
19.1
5
45
0.05
12.6
BZX79C20
18.8
21.2
5
55
0.05
14
BZX79C22
20.8
23.3
5
55
0.05
15.4
BZX79C24
22.8
25.6
5
70
0.05
16.8
BZX79C27
25.1
28.9
2
80
0.05
18.9
BZX79C30
28
32
2
80
0.05
21
BZX79C33
31
35
2
80
0.05
23.1
BZX79C36
34
38
2
90
0.05
25.2
BZX79C39
37
41
2
130
0.05
27.3
BZX79C43
40
46
2
150
0.05
30.1
BZX79C47
44
50
2
170
0.05
32.9
BZX79C51
48
54
2
180
0.05
35.7
BZX79C56
52
60
2
200
0.05
39.2
BZX79C62
58
66
2
215
0.05
43.4
BZX79C68
64
72
2
240
0.05
47.6
BZX79C75
70
79
2
255
0.05
52.5
BZX79C82
77
87
2
280
0.1
62
BZX79C91
85
96
2
300
0.1
69
BZX79C100
94
106
1
500
0.1
76
BZX79C110
104
116
1
650
0.1
84
BZX79C120
114
127
1
800
0.1
91
BZX79C130
124
141
1
950
0.1
99
BZX79C150
138
156
1
1250
0.1
114
BZX79C160
153
171
1
1400
0.1
122
BZX79C180
168
191
1
1700
0.1
137
BZX79C200
188
212
1
2000
0.1
152
1)
O
Zener voltage is measured under pulse conditions such that T
J
is no more than 2 C above T
a
2)
Z
ZT
is measured by dividing the ac voltage drop across the device by the ac current applied. The specified limits are for I
Z
(ac) = 0.1I
Z
(dc) with the ac frequency = 1 KHz
3)
Tested with pulses tp = 20 ms.
SEMTECH ELECTRONICS LTD.
®
(Subsidiary
of Sino-Tech International Holdings Limited, a company
listed on the Hong Kong Stock Exchange, Stock Code: 724)
Dated : 25/02/2006
BZX79C
500
Power Dissipation: Ptot (mW)
400
300
200
100
0
0
25
100
150
Ambient Temperature: Ta (
O
C)
200
Power Derating Curve
SEMTECH ELECTRONICS LTD.
®
(Subsidiary
of Sino-Tech International Holdings Limited, a company
listed on the Hong Kong Stock Exchange, Stock Code: 724)
Dated : 25/02/2006
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