BZX79 Series
Vishay Semiconductors
formerly General Semiconductor
Silicon Planar Zener Diodes
V
Z
Range
2.4 to 75V
Power Dissipation
500mW
DO-204AH (DO-35 Glass)
Features
• The Zener voltages are graded according to the
international E 24 standard. Higher Zener voltages
available on request.
• Diodes available in these tolerance series:
±2% BZX79-B, ±3% BZX79-F, ±5% BZX79-C.
Mechanical Data
Case:
DO-35 Glass Case
Weight:
approx. 0.13g
Packaging codes/options:
D7/10K per 13” reel (52mm tape), 20K/box
D8/10K per Ammo Tape (52mm tape), 20K/box
Dimensions in inches and (millimeters)
Maximum Ratings and Thermal Characteristics
(T
Parameter
Zener Current see Table “Characteristics”
Power Dissipation at T
amb
= 25°C
Junction temperature
Storage temperature range
Continuous Forward Current
Thermal Resistance Junction to Ambient Air
Peak reverse power dissipation (non-repetitive)
t
p
= 100µs square wave
P
tot
T
j
T
S
I
F
R
θJA
P
ZSM
Symbol
A
= 25°C unless otherwise noted)
Value
500
(1)
–65 to +200
–65 to +200
250
300
(1)
40
Unit
mW
°C
°C
mA
°C/W
W
Notes:
(1) Valid provided that leads are kept at ambient temperature at a distance of 8mm from case.
Document Number 88320
29-Apr-02
www.vishay.com
1
BZX79 Series
Vishay Semiconductors
formerly General Semiconductor
Electrical Characteristics
Dynamic Resistance
Type
y=B for ±2% V
Z
y=F for ±3% V
Z
y=C for ±5% V
Z
BZX79 – y2V4
BZX79 – y2V7
BZX79 – y3V0
BZX79 – y3V3
BZX79 – y3V6
BZX79 – y3V9
BZX79 – y4V3
BZX79 – y4V7
BZX79 – y5V1
BZX79 – y5V6
BZX79 – y6V2
BZX79 – y6V8
BZX79 – y7V5
BZX79 – y8V2
BZX79 – y9V1
BZX79 – y10
BZX79 – y11
BZX79 – y12
BZX79 – y13
BZX79 – y15
BZX79 – y16
BZX79 – y18
BZX79 – y20
BZX79 – y22
BZX79 – y24
BZX79 – y27
BZX79 – y30
BZX79 – y33
BZX79 – y36
BZX79 – y39
BZX79 – y43
BZX79 – y47
BZX79 – y51
BZX79 – y56
BZX79 – y62
BZX79 – y68
BZX79 – y75
at
I
Z
= 5 mA
f = 1 kH
Z
r
zj
(
Ω
)
Max
100
100
95
95
90
90
90
80
60
40
10
15
15
15
15
20
20
25
30
30
40
45
55
55
70
80
80
80
90
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(T
A
= 25
O
C unless otherwise noted)
Maximum V
F
= 0.9V at I
F
= 10mA
at
I
Z
= 1 mA
f = 1 kH
Z
r
zj
(
Ω
)
Max
< 600
< 600
< 600
< 600
< 600
< 600
< 600
500
480
400
150
80
80
80
100
150
150
150
170
200
200
225
225
250
250
300
300
325
350
350
375
375
400
425
450
475
500
(4)
(4)
(4)
(4)
(4)
(4)
(4)
(4)
(4)
(4)
(4)
(4)
Temp. coefficient
of Zener Voltage
at I
Z
= 5 mA
α
mvz
(% / °C)
Maximum
Reverse leakage
Current
Admissible
Zener Current
(2)
I
Z
(mA)
167
135
125
115
105
95
90
85
80
70
64
58
53
47
43
40
36
32
29
27
24
21
20
18
16
14
13
12
11
10
9.2
8.5
7.8
7.1
6.4
5.8
5.3
Maximum
Capacitance
V
R
= 0
f = 1 MH
Z
(pF)
450
450
450
450
450
450
450
300
300
300
200
200
150
150
150
90
85
85
80
75
75
70
60
60
55
50
50
45
45
45
40
40
40
40
35
35
35
Non-Repetitive
Peak Reverse
Current
at t
P
= 100µs
I
ZSM
(A)
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
4.0
4.0
3.0
3.0
2.5
2.5
2.5
2.0
1.5
1.5
1.5
1.3
1.3
1.0
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.3
0.3
0.2
Min
– 0.08
– 0.08
– 0.08
– 0.08
– 0.08
– 0.07
– 0.04
– 0.03
– 0.02
– 0.01
0
+0.01
+0.01
+0.01
+0.02
+0.03
+0.03
+0.03
+0.03
+0.03
+0.03
+0.03
+0.03
+0.03
+0.04
+0.04
+0.04
+0.04
+0.04
+0.04
+0.04
+0.04
+0.04
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
Max
– 0.06
– 0.06
– 0.06
– 0.05
– 0.04
– 0.03
– 0.01
+0.01
+0.05
+0.06
+0.07
+0.08
+0.09
+0.09
+0.10
+0.11
+0.11
+0.11
+0.11
+0.11
+0.11
+0.11
+0.11
+0.11
+0.12
+0.12
+0.12
+0.12
+0.12
+0.12
+0.12
+0.12
+0.12
(3)
(3)
(3)
(3)
I
R
(nA)
50,000
20,000
10,000
5,000
5,000
3,000
3,000
3,000
2,000
1,000
3,000
2,000
1,000
700
500
200
100
100
100
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
at V
R
(V)
1
1
1
1
1
1
1
1
1
1
2
3
5
6
7
7.5
8.5
9
10
11
12
14
15
17
18
20
22
24
27
28
32
35
38
39
43
48
53
130
150
170
180
200
215
240
255
typ. +0.1
typ. +0.1
typ. +0.1
typ. +0.1
Notes:
(1) Tested with pulses t
p
= 5 ms.
(2) Valid provided that leads are kept at ambient temperature at a distance of 8 mm from case.
(3) at I
Z
= 2.0 mA
(4) at I
Z
= 0.5 mA
Y = Zener voltage tolerance designator
www.vishay.com
2
Document Number 88320
29-Apr-02
BZX79 Series
Vishay Semiconductors
formerly General Semiconductor
Electrical Characteristics
Zener Voltage Range
(1)
at I
Z
= 5mA
Type
±5% Tol.
BZX79 - C2V4
BZX79 - C2V7
BZX79 - C3V0
BZX79 - C3V3
BZX79 - C3V6
BZX79 - C3V9
BZX79 - C4V3
BZX79 - C4V7
BZX79 - C5V1
BZX79 - C5V6
BZX79 - C6V2
BZX79 - C6V8
BZX79 - C7V5
BZX79 - C8V2
BZX79 - C9V1
BZX79 - C10
BZX79 - C11
BZX79 - C12
BZX79 - C13
BZX79 - C15
BZX79 - C16
BZX79 - C18
BZX79 - C20
BZX79 - C22
BZX79 - C24
BZX79 - C27
BZX79 - C30
BZX79 - C33
BZX79 - C36
BZX79 - C39
BZX79 - C43
BZX79 - C47
BZX79 - C51
BZX79 - C56
BZX79 - C62
BZX79 - C68
BZX79 - C75
V
Z
(V)
Min
2.20
2.50
2.80
3.10
3.40
3.70
4.00
4.40
4.80
5.20
5.80
6.40
7.00
7.70
8.50
9.40
10.40
11.40
12.40
13.80
15.30
16.80
18.80
20.80
22.80
25.10
28.00
31.00
34.00
37.00
40.00
44.00
48.00
52.00
58.00
64.00
70.00
Max
2.60
2.90
3.20
3.50
3.80
4.10
4.60
5.00
5.40
6.00
6.60
7.20
7.90
8.70
9.60
10.60
11.60
12.70
14.10
15.60
17.10
19.10
21.20
23.30
25.60
28.90
(3)
32.00
(3)
35.00
(3)
38.00
(3)
41.00
(3)
46.00
(3)
50.00
(3)
54.00
(3)
60.00
(3)
66.00
(3)
72.00
(3)
79.00
(3)
(T
A
= 25
O
C unless otherwise noted)
Maximum V
F
= 0.9V at I
F
= 10mA
Zener Voltage Range
(1)
at I
Z
= 5mA
Type
±3% Tol.
BZX79 - F2V4
BZX79 - F2V7
BZX79 - F3V0
BZX79 - F3V3
BZX79 - F3V6
BZX79 - F4V3
BZX79 - F4V3
BZX79 - F4V7
BZX79 - F5V1
BZX79 - F5V6
BZX79 - F6V2
BZX79 - F6V8
BZX79 - F7V5
BZX79 - F8V2
BZX79 - F9V1
BZX79 - F10
BZX79 - F11
BZX79 - F12
BZX79 - F13
BZX79 - F15
BZX79 - F16
BZX79 - F18
BZX79 - F20
BZX79 - F22
BZX79 - F24
BZX79 - F27
BZX79 - F30
BZX79 - F33
BZX79 - F36
BZX79 - F39
BZX79 - F43
BZX79 - F47
BZX79 - F51
BZX79 - F56
BZX79 - F62
BZX79 - F68
BZX79 - F75
V
Z
(V)
Min
2.33
2.62
2.91
3.20
3.49
4.17
4.17
4.56
4.95
5.43
6.01
6.60
7.28
7.95
8.83
9.70
10.67
11.64
12.61
14.55
15.50
17.50
19.40
21.30
23.30
26.20
29.10
32.00
34.90
37.80
41.70
45.60
49.50
54.30
60.10
66.00
72.80
Max
2.47
2.78
3.09
3.40
3.71
4.43
4.43
4.84
5.25
5.77
6.39
7.00
7.72
8.45
9.37
10.30
11.33
12.36
13.39
15.45
16.50
18.50
20.60
22.70
24.70
27.80
(3)
30.90
(3)
34.00
(3)
37.10
(3)
40.20
(3)
44.30
(3)
48.40
(3)
52.50
(3)
57.70
(3)
63.90
(3)
70.00
(3)
77.20
(3)
Type
±2% Tol.
BZX79 - B2V4
BZX79 - B2V7
BZX79 - B3V0
BZX79 - B3V3
BZX79 - B3V6
BZX79 - B3V9
BZX79 - B4V3
BZX79 - B4V7
BZX79 - B5V1
BZX79 - B5V6
BZX79 - B6V2
BZX79 - B6V8
BZX79 - B7V5
BZX79 - B8V2
BZX79 - B9V1
BZX79 - B10
BZX79 - B11
BZX79 - B12
BZX79 - B13
BZX79 - B15
BZX79 - B16
BZX79 - B18
BZX79 - B20
BZX79 - B22
BZX79 - B24
BZX79 - B27
BZX79 - B30
BZX79 - B33
BZX79 - B36
BZX79 - B39
BZX79 - B43
BZX79 - B47
BZX79 - B51
BZX79 - B56
BZX79 - B62
BZX79 - B68
BZX79 - B75
Zener Voltage Range
(1)
at I
Z
= 5mA
V
Z
(V)
Min
2.35
2.65
2.94
3.23
3.53
3.82
4.21
4.61
5.00
5.49
6.08
6.66
7.35
8.04
8.92
9.80
10.80
11.80
12.70
14.70
15.70
17.60
19.60
21.60
23.50
26.50
29.40
32.30
35.30
38.20
42.10
46.10
50.00
54.90
60.80
66.60
73.50
Max
2.45
2.75
3.06
3.37
3.67
3.98
4.39
4.79
5.20
5.71
6.32
6.94
7.65
8.36
9.28
10.20
11.20
12.20
13.30
15.30
16.30
18.40
20.40
22.40
24.50
27.50
(3)
30.60
(3)
33.70
(3)
36.60
(3)
39.80
(3)
43.90
(3)
47.90
(3)
52.00
(3)
57.10
(3)
63.20
(3)
69.40
(3)
76.50
(3)
Notes:
(1) Tested with pulses tp = 5 ms
(2) Valid provided that electrodes are kept at ambient temperature
(3) at I
Z
= 2.0 mA
See BZV55-y table for all characteristics other than zener voltage range.
Document Number 88320
29-Apr-02
www.vishay.com
3
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