DIP Type
Zener Diodes
1N4728A ~ 1N4758A
DO-41
Diodes
■
Features
●
Zener Voltage Range 3.3 to 56 Volts
●
Through-Hole Device Type Mounting
●
Hermetically Sealed Glass
●
Compression Bonded Construction
●
RoHS Compliant
0.107 (2.7)
0.080 (2.0)
DIA.
1.0 (25.4)
MIN.
0.205 (5.2)
0.160 (4.1)
1.0 (25.4)
MIN.
0.034 (0.86)
0.028 (0.71)
Dimensions in inches and (millimeters)
■
Absolute Maximum Ratings Ta = 25℃
Parameter
Power Dissipation
Thermal Resistance Junction to Ambient
Thermal Resistance Junction to Lead
Junction Temperature
Storage Temperature range
Symbol
P
d
R
θJA
R
θJL
T
J
T
stg
Rating
1
100
53.5
200
-55 to 200
Unit
W
℃/W
℃/W
℃
■
Electrical Characteristics Ta = 25℃
Device Type
1N4728A
1N4729A
1N4730A
1N4731A
1N4732A
1N4733A
1N4734A
1N4735A
1N4736A
1N4737A
1N4738A
1N4739A
1N4740A
1N4741A
1N4742A
1N4743A
V
Z
@ I
ZT
(Volts)
Nominal
3.3
3.6
3.9
4.3
4.7
5.1
5.6
6.2
6.8
7.5
8.2
9.1
10
11
12
13
I
ZT
(mA)
76
69
64
58
53
49
45
41
37
34
31
28
25
23
21
19
Z
ZT
@ I
ZT
(Ω)
Max
10
10
9
9
8
7
5
2
3.5
4
4.5
5
7
8
9
10
I
ZK
(mA)
1
1
1
1
1
1
1
1
1
0.5
0.5
0.5
0.25
0.25
0.25
0.25
Z
ZK
@ I
ZK
(Ω)
Max
400
400
400
400
500
550
600
700
700
700
700
700
700
700
700
700
I
R
@ V
R
(µA)
Max
100
100
50
10
10
10
10
10
10
10
10
10
10
5
5
5
V
R
(Volts)
1
1
1
1
1
1
2
3
4
5
6
7
7.6
8.4
9.1
9.9
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DIP Type
Zener Diodes
1N4728A ~ 1N4758A
■
Typical Characterisitics
Device Type
1N4744A
1N4745A
1N4746A
1N4747A
1N4748A
1N4749A
1N4750A
1N4751A
1N4752A
1N4753A
1N4754A
1N4755A
1N4756A
1N4757A
1N4758A
Diodes
V
Z
@ I
ZT
(Volts)
Nominal
15
16
18
20
22
24
27
30
33
36
39
43
47
51
56
I
ZT
(mA)
17
15.5
14
12.5
11.5
10.5
9.5
8.5
7.5
7
6.5
6
5.5
5
4.5
Z
ZT
@ I
ZT
(Ω)
Max
14
16
20
22
23
25
35
40
45
50
60
70
80
95
110
I
ZK
(mA)
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
Z
ZK
@ I
ZK
(Ω)
Max
700
700
700
750
750
750
750
1000
1000
1000
1000
1500
1500
1500
2000
I
R
@ V
R
(µA)
Max
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
V
R
(Volts)
11.4
12.2
13.7
15.2
16.7
18.2
20.6
22.8
25.1
27.4
29.7
32.7
35.8
38.8
42.6
V
F
Forward Voltage = 1.2 V Maximum @
I
F
= 200 mA for all types
Notes:
1. TOLERANCE AND TYPE NUMBER DESIGNATION (V
Z
)
The type numbers listed have a standard tolerance on the nominal zener voltage of
±
5%. Device tolerance of±2% is indicated by a
“C” instead of an “A”.
2. SPECIALS AVAILABLE INCLUDE
Nominal zener voltages between the voltages shown and tighter voltage, for detailed information on price, availability and delivery,
contact you nearest Tak Cheong representative.
3. ZENER VOLTAGE (V
Z
) MEASUREMENT
The zener voltage (V
Z
) is tested under pulse condition. The measured
V
Z
is guaranteed to be within specification with device junction
in thermal equilibrium.
4. ZENER IMPEDANCE (Z
Z
) DERIVATION
The zener impedance is derived from the 60 cycle AC voltage, which results when an AC current having an RMS value equal to 10%
of the DC zener current (I
ZT
or I
ZK
) is superimposed on I
ZT
or I
ZK.
2
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DIP Type
Zener Diodes
1N4728A ~ 1N4758A
■
Typical Characterisitics
1.0
Diodes
1000
PD-Power Passipation [W]
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0
20
40
60
Total Capacitance [pF]
VR = 0V
f = 1MHz
Ta = 25
℃
100
VR = 2V
VR = 5V
VR = 20V
10
VR = 30V
1
Temperature [℃]
80
100
120
140
160
180
200
0
5
10 15 20 25
30 35 40 45
50 55 60
VZ - Reverse Voltage [V]
Valid provided leads at a distance of 0.8mm from case are kept at
ambient temperature
Figure 1. Power Dissipation vs Ambient Temperature
Figure 2. Total Capacitance
Differential Zener Impedance [Ω]
1000
Iz=1mA
1000
Iz=2mA
Iz=5mA
Iz=10mA
Ta = 25
℃
Forward Current [mA]
100
Ta = 25
℃
100
10
10
1
1
0.1
0
10
20
30
40
VZ - Reverse Voltage [V]
50
60
0.1
0
0.2
0.4
0.6
0.8
VF - Forw ard Voltage [V]
1
1.2
Figure 3. Differential Impedance vs. Zener Voltage
Figure 4. Forward Current vs. Forward Voltage
1000
100
Reverse Current [mA]
Reverse Current [mA]
100
10
PD=500mW
Ta = 25
℃
10
PD=500mW
Ta = 25
℃
1
1
0.1
0.1
0
3
6
9
VZ - Reverse Voltage [V]
12
15
0.01
10
20
30
40
50
VZ - Reverse Voltage [V]
60
70
Figure 5. Reverse Current vs. Reverse Voltage
Figure 6. Reverse Current vs. Reverse Voltage
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