Surface Mount Zener Diodes
*225mw Power Dissipation
*Ideal for Surface Mountted Application
*Case : SOT-23 Molded plastic
Mechanical Data:
Features:
WEITRON
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BZX84C2V4 Series
SMALL SIGNAL
ZENER DIODES
225m WATTS
*Zener Breakdown Voltage Range 2.4V to 75V
*Terminals: Solderable per MIL-STD-202, Method 208
*Polarity: Cathode Indicated by Polarity Band
*Marking: Marking Code (See Table on Page 3)
*Weigh: 0.008grams(approx)
1
2
3
SOT-23
Unit:mm
Dim
A
B
C
D
E
G
H
J
K
L
M
Min
0.35
1.19
2.10
0.85
0.46
1.70
2.70
0.01
0.89
0.30
0.076
Max
0.51
1.40
3.00
1.05
1.00
2.10
3.10
0.13
1.10
0.61
0.25
SOT-23 Outline Dimensions
BZX84C2V4 Series
WEITRON
Maximum Ratings and Electrical Characteristics
Characteristics
Symbol
Unit
Total Power Dissipation on FR-5 Board
@T =25 C
Thermal Resistance Junction to Ambient Air
Forward Voltage @ IF=10mA
Junction and Storage Temperature Range
V
C/W
NOTES:1.FR-5=1.0*0.75*0.62in
C
R JA
WEITRON
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(1)
(1)
PD
VF
Tj,TSTG
Value
225
556
0.9
-65 to+150
mW
(TA=25 C Unless Otherwise Noted)
A
Zener Voltage Regulator
I
F
V
I
I
R
I
ZT
V
R
V
Z
V
F
ELECTRICAL CHARACTERISTICS
(P inout: 1-Anode, 2-No C onnection, 3-C athode)
(T
A
= 25 C
unless otherwise noted, V
F
= 0.9V Max. @ I
F
= 10 mA)
Symbol
Parameter
V
Z
R everse Zener Voltage @ I
ZT
I
ZT
R everse C urrent
Z
ZT
Maximum Zener Impedance @ I
ZT
I
R
R everse Leakage C urrent @ V
R
V
R
R everse Voltage
I
F
F orward C urrent
V
F
F orward Voltage @ I
F
V
Z
Maximum Temperature C oefficient of V
Z
C
Max. C apacitance @ V
R
= 0 and f = 1 MHz
Device Marking
Item
BZX84C2V4
Series
Marking
XX=Specific Device Code
(See Table on page3)
Equivalent Circuit Diagram
3
Cathode
Anode
1
ELECTRICAL CHARACTERISTICS
(P inout: 1-Anode, 2-No C onnection, 3-C athode)
(T
A
= 25 C unless otherwise noted, V
F
= 0.90 V Max. @ I
F
= 10 mA)
V
Z1
(V
olts )
@ I
ZT 1
= 5 mA
(Note )
Z
ZT 1
(Ohms )
V
Z2
(Volts )
@ I
ZT 2
= 1 mA
(Note )
Z
ZT 2
(Ohms )
V
Z3
(Volts )
@ I
ZT 3
= 20 mA
(Note )
Z
ZT 3
(Ohms )
Max R evers e
L eakage
C urrent
V Z
(mV /k)
@
ZT 1
=5mA
Device
Device
Marking
Min
Nom
Max
(Ohms )
@
ZT 1
=
5mA
Min
Max
(Ohms )
@
ZT 2
=
1mA
Min
Max
(Ohms )
@
ZT 3
=
20mA
V
R
Volts
I
R
A
@
Min
Max
C (pF )
@ V
R
=0
f=1MHz
B ZX84C 2V 4
Z11
2.2
2.4
2.6
100
1.7
2.1
600
2.6
3.2
50
50
1
3.5
0
450
B ZX84C 2V 7
Z12
2.5
2.7
2.9
100
1.9
2.4
600
3
3.6
50
20
1
3.5
0
450
B ZX84C 3V 0
Z13
2.8
3
3.2
95
2.1
2.7
600
3.3
3.9
50
10
1
3.5
0
450
B ZX84C 3V 3
Z14
3.1
3.3
3.5
95
2.3
2.9
600
3.6
4.2
40
5
1
3.5
0
450
B ZX84C 3V 6
Z15
3.4
3.6
3.8
90
2.7
3.3
600
3.9
4.5
40
5
1
3.5
0
450
B ZX84C 3V 9
Z16
3.7
3.9
4.1
90
2.9
3.5
600
4.1
4.7
30
3
1
3.5
2.5
450
B ZX84C 4V 3
W9
4
4.3
4.6
90
3.3
4
600
4.4
5.1
30
3
1
3.5
0
450
B ZX84C 4V 7
Z1
4.4
4.7
5
80
3.7
4.7
500
4.5
5.4
15
3
2
3.5
0.2
260
B ZX84C 5V 1
Z2
4.8
5.1
5.4
60
4.2
5.3
480
5
5.9
15
2
2
2.7
1.2
225
B ZX84C 5V 6
Z3
5.2
5.6
6
40
4.8
6
400
5.2
6.3
10
1
2
2.0
2.5
200
B ZX84C 6V 2
Z4
5.8
6.2
6.6
10
5.6
6.6
150
5.8
6.8
6
3
4
0.4
3.7
185
B ZX84C 6V 8
Z5
6.4
6.8
7.2
15
6.3
7.2
80
6.4
7.4
6
2
4
1.2
4.5
155
B ZX84C 7V 5
Z6
7
7.5
7.9
15
6.9
7.9
80
7
8
6
1
5
2.5
5.3
140
B ZX84C 8V 2
Z7
7.7
8.2
8.7
15
7.6
8.7
80
7.7
8.8
6
0.7
5
3.2
6.2
135
B ZX84C 9V 1
Z8
8.5
9.1
9.6
15
8.4
9.6
100
8.5
9.7
8
0.5
6
3.8
7.0
130
B ZX84C 10
Z9
9.4
10
10.6
20
9.3
10.6
150
9.4
10.7
10
0.2
7
4.5
8.0
130
B ZX84C 11
Y 1
10.4
11
11.6
20
10.2
11.6
150
10.4
11.8
10
0.1
8
5.4
9.0
130
B ZX84C 12
Y 2
1
1.4
12
12.7
25
1
1.2
12.7
150
1
1.4
12.9
10
0.1
8
6.0
10.0
130
B ZX84C 13
Y 3
12.4
13
14.1
30
12.3
14
170
12.5
14.2
15
0.1
8
7.0
11.0
120
B ZX84C 15
Y 4
14.3
15
15.8
30
13.7
15.5
200
13.9
15.7
20
0.05
10.5
9.2
13.0
110
B ZX84C 16
Y 5
15.3
16
17.1
40
15.2
17
200
15.4
17.2
20
0.05
11.2
10.4
14.0
105
B ZX84C 18
Y 6
16.8
18
19.1
45
16.7
19
225
16.9
19.2
20
0.05
12.6
12.4
16.0
100
B ZX84C 20
Y 7
18.8
20
21.2
55
18.7
21.1
225
18.9
21.4
20
0.05
14
14.4
18.0
85
B ZX84C 22
Y 8
20.8
22
23.3
55
20.7
23.2
250
20.9
23.4
25
0.05
15.4
16.4
20.0
85
B ZX84C 24
Y 9
22.8
24
25.6
70
22.7
25.5
250
22.9
25.7
25
0.05
16.8
18.4
22.0
80
V
Z1
B elow
@ I
ZT 1
= 2 mA
Z
ZT 1
B elow
V
Z2
B elow
@ I
ZT 2
= 0.1 mA
Z
ZT 2
B elow
V
Z3
B elow
@ I
ZT 3
= 10 mA
Z
ZT 3
B elow
Max R evers e
L eakage
C urrent
V Z
(mV /k) B elow
@
ZT 1
=2mA
Device
Device
Marking
Min
Nom
Max
B elow
@
ZT 1
=
2mA
Min
Max
B elow
@
ZT 4
=
0.5mA
Min
Max
B elow
@
ZT 3
=
10mA
V
R
Volts
I
R
A
@
Min
Max
C (pF )
@ V
R
=0
f=1MHz
B ZX84C 27
Y 10
25.1
27
28.9
80
25
28.9
300
25.2
29.3
45
0.05
18.9
21.4
25.3
70
B ZX84C 30
Y 11
28
30
32
80
27.8
32
300
28.1
32.4
50
0.05
21
24.4
29.4
70
B ZX84C 33
Y 12
31
33
35
80
30.8
35
325
31.1
35.4
55
0.05
23.1
27.4
33.4
70
B ZX84C 36
Y 13
34
36
38
90
33.8
38
350
34.1
38.4
60
0.05
25.2
30.4
37.4
70
B ZX84C 39
Y 14
37
39
41
130
36.7
41
350
37.1
41.5
70
0.05
27.3
33.4
41.2
45
B ZX84C 43
Y 15
40
43
46
150
39.7
46
375
40.1
46.5
80
0.05
30.1
37.6
46.6
40
B ZX84C 47
Y 16
44
47
50
170
43.7
50
375
44.1
50.5
90
0.05
32.9
42.0
51.8
40
B ZX84C 51
Y 17
48
51
54
180
47.6
54
400
48.1
54.6
100
0.05
35.7
46.6
57.2
40
B ZX84C 56
Y 18
52
56
60
200
51.5
60
425
52.1
60.8
110
0.05
39.2
52.2
63.8
40
B ZX84C 62
Y 19
58
62
66
215
57.4
66
450
58.2
67
120
0.05
43.4
58.8
71.6
35
B ZX84C 68
Y 20
64
68
72
240
63.4
72
475
64.2
73.2
130
0.05
47.6
65.6
79.8
35
B ZX84C 75
Y 21
70
75
79
255
69.4
79
500
70.3
80.2
140
0.05
52.5
73.4
88.6
35
Zener voltage is measured with a pulse test current I
Z
at an ambient temperature of 25 C
WE IT R ON
BZX84C2V4 Series
WEITRON
http://www.weitron.com.tw
I
I
I
I
I
I
I
I
Note:
TYPICAL CHARACTERISTICS
V
Z,
T
E
M
P
E
R
A
T
U
R
E
C
O
E
F
F
I
C
I
E
N
T
(
m
V
/
C
)
V
Z
, NOMINAL ZENER VOLTAGE (V)
-3
-2
- 1
0
1
2
3
4
5
6
7
8
12
11
10
9
8
7
6
5
4
3
2
Figure 1. T emperature Coefficients
(Temperature Range - 55 C to +150 C)
TYPICAL T
C
VALUES
V
Z
@ I
ZT
V
Z,
T
E
M
P
E
R
A
T
U
R
E
C
O
E
F
F
I
C
I
E
N
T
(
m
V
/
C
)
100
10
1
10
100
V
Z
, NOMINAL ZENER VOLTAGE (V)
Figure 2. Temperature Coefficients
(Temperature Range - 55 C to +150 C)
V
Z
@ I
ZT
100
V
Z
, NOMINAL ZENER VOLTAGE
Figure 3. Effect of Zener Voltage on
Zener Impedance
10
1
Z
Z
T,
D
Y
N
A
M
I
C
I
M
P
E
D
A
N
C
E
(
)
1000
100
10
1
T
J
= 25 C
I
Z(AC)
= 0.1 I
Z(DC)
f = 1 kHz
I
Z
= 1 mA
5 mA
20 mA
V
F
, FORWARD VOLTAGE (V)
Figure 4. Typical Forward Voltage
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
I F
,
F
O
R
W
A
R
D
C
U
R
R
E
N
T
(
m
A
)
1000
100
10
1
150 C
75 C 25 C
0 C
TYPICAL T
C
VALUES
BZX84C2V4 Series
WEITRON
http://www.weitron.com.tw
TYPICAL CHARACTERISTICS
C
,
C
A
P
A
C
I
T
A
N
C
E
(
p
F
)
100
V
Z
, NOMINAL ZENER VOLTAGE (V)
Figure 5. Typical Capacitance
1000
100
10
1
10
1
BIAS AT
50% OF V
Z
NOM
T
A
= 25 C
0 V BIAS
1 V BIAS
12
V
Z
, ZENER VOLTAGE (V)
100
10
1
0.1
0.01
10
8
6
4
2
0
T
A
= 25 C
I Z
,
Z
E
N
E
R
C
U
R
R
E
N
T
(
m
A
)
V
Z
, ZENER VOLTAGE (V)
100
10
1
0.1
0.01
10
30
50
70
90
T
A
= 25 C
I R
,
L
E
A
K
A
G
E
C
U
R
R
E
N
T
(
A
)
90
V
Z
, NOMINAL ZENER VOLTAGE (V)
Figure 6. Typical Leakage Current
1000
100
10
1
0.1
0.01
0.001
0.0001
0.00001
80
70
60
50
40
30
20
10
0
+150 C
+25 C
-55 C
I Z
,
Z
E
N
E
R
C
U
R
R
E
N
T
(
m
A
)
Figure 7. Zener Voltage versus Zener Current
(V
Z
Up to 12 V)
Figure 8. Zener Voltage versus Zener Current
(12 V to 75 V)
BZX84C2V4 Series
WEITRON
http://www.weitron.com.tw
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