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Technology Co.,Ltd
Tel:0086-21-37185008
Fax:0086-21-57152769
BZX79C2V4
THRU
BZX79C33
•
•
•
Features
Zener Voltage Range 2.4V to 33V
Metallurgical Bonded C onstrrction
Double Slug Type Construction
500mW Silicon
Zener Diodes
Mechanical Data
•
•
Case: Double slug type, hermetically sealed glass
Polarity: Cathode indicated by polarity band
Maximum Ratings*
Symbol
Max. Steady State Power
Dissipation at
T
L
<75
O
C, Lead Length=3/8”
Derate above 75
O
C
Junction Temperature
Storage Temperature Range
P
D
T
J
T
STG
4.0
150
-55 to 150
mW/
o
C
o
o
Value
500
Units
mW
C
C
Electrical Characteristics @ 25°C Unless Otherwise Specified
Symbol
Max. Forward Voltage
@ I
F
=100mA
V
F
Maximum
1.5
Unit
V
DIMENSIONS
NOTE:
1) Some part number series have lower JEDEC registered
ratings.
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BZX79C2V4 thru BZX79C33
Electrical Characteristics (T
L
= 30
O
C Unless Otherwise Noted, VF=1.5V Max @ IF=100mA for all types)
Device
(1)
Device
Marking
BZX79C2V4 79C2V4
BZX79C2V7 79C2V7
BZX79C3V0 79C3V0
BZX79C3V3 79C3V3
BZX79C3V6 79C3V6
BZX79C3V9 79C3V9
BZX79C4V7 79C4V7
BZX79C5V1 79C5V1
BZX79C5V6 79C5V6
BZX79C6V2 79C6V2
BZX79C6V8 79C6V8
BZX79C7V5 79C7V5
BZX79C8V2 79C8V2
BZX79C10
79C10
BZX79C12
79C12
BZX79C15
79C15
BZX79C16
79C16
BZX79C18
79C18
BZX79C22
79C22
BZX79C24
79C24
BZX79C27
79C27
BZX79C30
79C30
BZX79C33
79C33
Note:
1) Tolerance and voltage designation
Tolerance designation- the type numbers listed have zener voltage min/max limits as shown.
2) Reverse zener voltage (V
Z
) Measurement
Reverse zener voltage is measured under pulse conditions such that Tj is no more than 2
O
C above
T
A
3) Zener impedance (Z
Z
) derivation
Z
ZT
and Z
ZK
are measured by dividing the ac voltage drop across the device by the ac current
applied. The specified limits are for I
Z
(ac)=0.1 I
Z
(dc) with the ac frequency=1.0KHz.
Zener Voltage
(2)
V
Z
(Volts)
@ I
ZT
Min
Nom Max
uA
2.28
2.4
2.52
5.0
2.57
2.7
2.84
5.0
2.85
3.0
3.15
5.0
3.14
3.3
3.47
5.0
3.42
3.6
3.78
5.0
3.71
3.9
4.10
5.0
4.47
4.7
4.94
5.0
4.85
5.1
5.36
5.0
5.32
5.6
5.88
5.0
5.89
6.2
6.51
5.0
6.46
6.8
7.19
5.0
7.13
7.5
7.88
5.0
7.79
8.2
8.61
5.0
9.5
10
10.5
5.0
11.4
12
12.6
5.0
14.25
15
15.75
5.0
15.2
16
16.8
5.0
17.1
18
18.9
5.0
20.9
22
23.1
5.0
22.8
24
25.2
5.0
25.65
27
28.35
5.0
28.5
30
31.5
5.0
31.35
33
34.65
5.0
Z
ZT
@ I
ZT (3)
(f=1.0KHz)
Leakage Current
I
R
@ V
R
V
BR
mV/
O
C
C
V
Z
=0, f=1.0MHz
pF
Ohms
100
100
95
95
90
90
80
60
40
10
15
15
15
20
25
30
40
45
55
70
80
80
80
uA
100
75
50
25
15
10
3.0
2.0
1.0
3.0
2.0
1.0
0.7
0.2
0.1
0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.05
Volts
1.0
1.0
1.0
1.0
1.0
1.0
2.0
2.0
2.0
4.0
4.0
5.0
5.0
7.0
8.0
10.5
11.2
12.6
15.4
16.8
18.9
21
23.1
Min
-3.5
-3.5
-3.5
-3.5
-3.5
-3.5
-3.5
-2.7
-2.0
0.4
1.2
2.5
3.2
4.5
6.0
9.2
10.4
12.9
16.4
18.4
---
---
---
Max
0
0
0
0
0
0.3
0.2
1.2
2.5
3.7
4.5
5.3
6.2
8.0
10
13
14
16
20
22
23.5
26
29
255
230
215
200
185
175
130
110
95
90
85
80
75
70
65
55
52
47
34
33
30
27
25
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BZX79C2V4 thru BZX79C33
θV
Z , TEMPERATURE COEFFICIENT (mV/
°C)
+10
+8
+6
+4
+2
0
-2
-4
2
3
4
5
6
7
8
9
V
Z
, ZENER VOLTAGE (VOLTS)
10
11
12
RANGE
V
Z
@ I
ZT
(NOTE 2)
θV
Z , TEMPERATURE COEFFICIENT (mV/
°C)
+12
100
70
50
30
20
10
7
5
3
2
1
10
20
30
50
V
Z
, ZENER VOLTAGE (VOLTS)
70
100
RANGE
V
Z
@ I
Z
(NOTE 2)
Figure
1a.
Range for Units to 12 Volts
Figure
1b.
Range for Units 12 to 100 Volts
θV
Z , TEMPERATURE COEFFICIENT (mV/
°C)
θV
Z , TEMPERATURE COEFFICIENT (mV/
°C)
200
180
160
140
120
100
V
Z
@ I
ZT
(NOTE 2)
120
130
140
150
160
170
180
190
200
+6
+4
+2
0
-2
-4
V
Z
@ I
Z
T
A
= 25°C
20 mA
0.01 mA
1 mA
NOTE: BELOW 3 VOLTS AND ABOVE 8 VOLTS
NOTE:
CHANGES IN ZENER CURRENT DO NOT
NOTE:
AFFECT TEMPERATURE COEFFICIENTS
3
4
5
6
7
8
V
Z
, ZENER VOLTAGE (VOLTS)
V
Z
, ZENER VOLTAGE (VOLTS)
Figure
1c.
Range for Units 120 to 200 Volts
Figure
2.
Effect of Zener Current
1000
500
C, CAPACITANCE (pF)
200
100
50
20
10
5
2
1
1
2
5
10
20
50% OF
V
Z
BIAS
0 V BIAS
T
A
= 25°C
100
70
50
C, CAPACITANCE (pF)
30
20
10
7
5
3
2
1
T
A
= 25°C
0 BIAS
1 V BIAS
1 VOLT BIAS
50% OF V
Z
BIAS
50
100
120
140
160
180
190
200
220
V
Z
, ZENER VOLTAGE (VOLTS)
V
Z
, ZENER VOLTAGE (VOLTS)
Figure
3a.
Typical Capacitance 2.4–100 Volts
Figure
3b.
Typical Capacitance 120–200 Volts
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BZX79C2V4 thru BZX79C33
Ppk , PEAK SURGE POWER (WATTS)
100
70
50
30
20
10
7
5
3
2
1
0.01
0.02
0.05
0.1
0.2
0.5
1
2
5
10
20
50
100
200
500
1000
10% DUTY CYCLE
20% DUTY CYCLE
5% DUTY CYCLE
RECTANGULAR
WAVEFORM
T
J
= 25°C PRIOR TO
INITIAL PULSE
11 V-91 V NONREPETITIVE
1.8 V-10 V NONREPETITIVE
PW, PULSE WIDTH (ms)
Figure
4a.
Maximum Surge Power 1.8–91 Volts
1000
700
500
300
200
100
70
50
30
20
10
7
5
3
2
1
0.01
1000
500
ZZ , DYNAMIC IMPEDANCE (OHMS)
RECTANGULAR
WAVEFORM, T
J
= 25°C
200
100
50
20
10
5
2
1
0.1
0.2
0.5
1
2
5
10
20
50
100
6.2 V
T
J
= 25°C
i
Z
(rms) = 0.1 I
Z
(dc)
f = 60 Hz
Ppk , PEAK SURGE POWER (WATTS)
V
Z
= 2.7 V
47 V
27 V
100-200 VOLTS NONREPETITIVE
0.1
1
10
100
1000
PW, PULSE WIDTH (ms)
I
Z
, ZENER CURRENT (mA)
Figure
4b.
Maximum Surge Power DO-204AH
100–200 Volts
Figure
5
Effect of Zener Current on
Zener Impedance
ZZ , DYNAMIC IMPEDANCE (OHMS)
1000
700
500
200
100
70
50
20
10
7
5
2
1
1
2
3
5
7
10
I
Z
= 1 mA
5 mA
20 mA
I F , FORWARD CURRENT (mA)
T
J
= 25°C
i
Z
(rms) = 0.1 I
Z
(dc)
f = 60 Hz
1000
500
200
100
50
20
10
5 150°C
2
1
75°C
MAXIMUM
MINIMUM
25°C
0°C
20
30
50
70 100
0.4
0.5
0.6
0.7
0.8
0.9
1
1.1
V
Z
, ZENER VOLTAGE (VOLTS)
V
F
, FORWARD VOLTAGE (VOLTS)
Figure
6.
Effect of Zener Voltage on Zener Impedance
Figure
7.
Typical Forward Characteristics
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