1N4728A - 1N4761A
1.0W ZENER DIODE
SPICE MODELS: 1N4728A 1N4729A 1N4730A 1N4731A 1N4732A 1N4733A 1N4734A 1N4735A
1N4736A 1N4737A 1N4738A 1N4739A 1N4740A 1N4741A 1N4742A 1N4743A 1N4744A 1N4745A
1N4746A 1N4747A 1N4748A 1N4749A 1N4750A 1N4751A 1N4752A 1N4753A 1N4754A 1N4755A
1N4756A 1N4757A 1N4758A 1N4759A 1N4760A 1N4761A
Features
·
·
·
·
1.0 Watt Power Dissipation
3.3V - 75V Nominal Zener Voltage
Standard V
Z
Tolerance is 5%
Lead Free Finish, RoHS Compliant (Note 2)
A
B
A
C
Mechanical Data
·
·
·
·
·
·
·
Case: DO-41
Case Material: Glass. UL Flammability Classification Rating
94V-0
Moisture Sensitivity: Level 1 per J-STD-020C
Terminals: Finish
¾
Bright Tin. Solderable per MIL-STD-202,
Method 208
Polarity: Cathode Band
Marking: Type Number
Weight: 0.35 grams (approximate)
Dim
A
B
C
D
D
DO-41 Glass
Min
25.40
—
—
—
Max
—
4.70
0.863
2.71
All Dimensions in mm
Maximum Ratings
@ T
A
= 25°C unless otherwise specified
Symbol
I
Z
(Note 1)
P
d
R
qJA
V
F
T
j
, T
STG
Value
Pd / V
Z
1.0
6.67
175
1.2
-65 to + 200
Unit
mA
W
mW/°C
°C/W
V
°C
Characteristic
Zener Current (see Table page 2)
Power Dissipation
Derate Above 50°C
Thermal Resistance - Junction to Ambient Air
Forward Voltage @ I
F
= 200 mA
Operating and Storage Temperature Range
Note:
1. Valid provided that leads are kept at T
L
@ 50°C with lead length = 9.5mm (3/8”) from case.
2. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see
EU Directive Annex Notes 5 and 7.
DS18007 Rev. 14 - 2
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1N4728A - 1N4761A
ã
Diodes Incorporated
Electrical Characteristics
Nominal Zener
Voltage (Note 3)
V
Z
@ I
ZT
(V)
1N4728A
1N4729A
1N4730A
1N4731A
1N4732A
1N4733A
1N4734A
1N4735A
1N4736A
1N4737A
1N4738A
1N4739A
1N4740A
1N4741A
1N4742A
1N4743A
1N4744A
1N4745A
1N4746A
1N4747A
1N4748A
1N4749A
1N4750A
1N4751A
1N4752A
1N4753A
1N4754A
1N4755A
1N4756A
1N4757A
1N4758A
1N4759A
1N4760A
1N4761A
Notes:
@ T
A
= 25°C unless otherwise specified
Max Surge
Current
8.3ms
I
ZS
(mA)
1380
1260
1190
1070
970
890
810
730
660
605
550
500
454
414
380
344
304
285
250
225
205
190
170
150
135
125
115
110
95
90
80
70
65
60
Type
Number
Test
Current
I
ZT
(mA)
76
69
64
58
53
49
45
41
37
34
31
28
25
23
21
19
17
15.5
14
12.5
11.5
10.5
9.5
8.5
7.5
7.0
6.5
6.0
5.5
5.0
4.5
4.0
3.7
3.3
Maximum Zener Impedance
(Note 4)
Z
ZT
@ I
ZT
(W)
10
10
9.0
9.0
8.0
7.0
5.0
2.0
3.5
4.0
4.5
5.0
7.0
8.0
9.0
10
14
16
20
22
23
25
35
40
45
50
60
70
80
95
110
125
150
175
Z
ZK
@ I
ZK
(W)
400
400
400
400
500
550
600
700
700
700
700
700
700
700
700
700
700
700
750
750
750
750
750
1000
1000
1000
1000
1500
1500
1500
2000
2000
2000
2000
I
ZK
(mA)
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
0.5
0.5
0.5
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
0.25
0.25
0.25
0.25
0.25
0.25
0.25
Maximum Reverse
Leakage Current
I
R
(µA)
100
100
50
10
10
10
10
10
10
10
10
10
10
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
@ V
R
(V)
1.0
1.0
1.0
1.0
1.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
7.6
8.4
9.1
9.9
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
47.1
51.7
56.0
Temperature
Coefficient
@ I
ZT
%/°C
-0.08 to -0.05
-0.08 to -0.05
-0.07 to -0.02
-0.07 to -0.01
-0.03 to +0.04
-0.01 to +0.04
0 to +0.045
+0.01 to +0.055
+0.015 to +0.06
+0.02 to +0.065
0.03 to 0.07
0.035 to 0.075
0.04 to 0.08
0.045 to 0.08
0.045 to 0.085
0.05 to 0.085
0.055 to 0.09
0.055 to 0.09
0.06 to 0.09
0.06 to 0.09
0.06 to 0.095
0.06 to 0.095
0.06 to 0.095
0.06 to 0.095
0.06 to 0.095
0.06 to 0.095
0.06 to 0.095
0.06 to 0.095
0.06 to 0.095
0.06 to 0.095
0.06 to 0.095
0.06 to 0.095
0.06 to 0.095
0.06 to 0.095
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
15
16
18
20
22
24
27
30
33
36
39
43
47
51
56
62
68
75
3. Measured under thermal equilibrium and dc (I
ZT
) test conditions.
4. The Zener impedance is derived from the 60 Hz ac voltage which results when an ac current having an rms value equal to
10% of the Zener current (I
ZT
or I
ZK
) is superimposed on I
ZT
or I
ZK
. Zener impedance is measured at two points to insure a
sharp knee on the breakdown curve and to eliminate unstable units.
DS18007 Rev. 14 - 2
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1N4728A - 1N4761A
1.0
250
P
d
, TOTAL POWER DISSIPATION (W)
0.8
200
0.6
150
0.4
100
0.2
50
0
0
40
80
120
160
200
0
0
30
15
25
20
10
l, Lead Length (mm)
Fig. 2 Typical Thermal Resistance vs. Lead Length
5
T
A
, AMBIENT TEMPERATURE
Fig.1 Power Dissipation vs Ambient Temperature
1000
f = 1MHz
T
A
= 25C
1000
I
Z
= 1mA
C
j
, DIODE CAPACITANCE (pF)
2mA
100
V
R
= 0V
V
R
= 2V
V
R
= 5V
V
R
= 20V
100
5mA
10mA
20mA
10
V
R
= 30V
10
1
0
10
20
30
40
50
60
V
Z
, ZENER VOLTAGE (V)
Fig.3, Junction Capacitance vs Zener Voltage
1
1
10
100
V
Z
, ZENER VOLTAGE (V)
Fig. 4 Typical Zener Impedance vs. Zener Voltage
Ordering Information
Device
(Note 6)
Packaging
DO-41
DO-41
Shipping
5K/Ammo Pack
1K/Bulk
(Type Number)-A*
(Type Number)-B*
Notes:
5. *Add "-A", "-B", or "-T" to the appropriate type number in Table 1. Example: 6.2V Zener = 1N4735A-A.
6. For packaging details, visit our website at http://www.diodes.com/datasheets/ap02008.pdf
DS18007 Rev. 14 - 2
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1N4728A - 1N4761A
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