1. DATA SHEET
1N4728A~1N4764A
GLASS PASSIVATED JUNCTION SILICON ZENER DIODE
VOLTAGE
3.3 to 100 Volts
1.0 Watts
POWER
FEATURES
• Low profile package
• Built-in strain relief
• Low inductance
• High temperature soldering : 260°C /10 seconds at terminals
• Plastic package has Underwriters Laboratory Flammability
Classification 94V-O
• Both normal and Pb free product are available :
Normal : 80~95% Sn, 5~20% Pb
Pb free: 98.5% Sn above
DO-41/DO-41G
Unit: inch(mm)
.034(.86)
1.0(25.4)MIN.
.028(.71)
MECHANICALDATA
• Case: Molded Glass DO-41G / Molded plastic DO-41
• Epoxy:UL 94V-O rate flame retardant
• Terminals: Axial leads, solderable per MIL-STD-202,
• Method 208 guaranteed
• Polarity: Color band denotes positive end
• Mounting position:Any
• Weight: 0.012 ounce, 0.3 gram
• Ordering information :
Suffix : “ -G ” to order Molded Glass Package
Suffix : “ -P ” to order Molded plastic Package
• Packing information
B - 1K per Bulk box
T/R - 5K per 13" paper Reel
T/B - 2.5K per horiz. tape & Ammo box
.107(2.7)
1.0(25.4)MIN.
.205(5.2)
.160(4.1)
.080(2.0)
Note :
This outline drawing is model plastics.
Its appearance size same as glass.
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25°C ambient temperature unless otherwise specified.
P ar m et r
a
e
P ow erD i si aton atTam b = 25
s p i
Juncton Tem per t r
i
aue
S t r ge Tem per t r R ange
oa
aue
O
S ym bol
Val e
u
1*
150
- 5 t + 150
5 o
U nis
t
W
O
C
P
TO T
T
J
T
STG
C
C
O
* ald pr vi ed t atl ads ata di t nce of10m m fom case ar keptatam bi ntt m per t r .
V i o d
h e
sa
r
e
e e
aue
P ar m et r
a
e
Ther alR esi t nce Juncton t A m bi ntA i
m
sa
i o
e
r
For ar Volage atI = 200m A
w d
t
F
S ym bol
Mi.
n
-
-
-
-
Typ.
M ax.
170*
1.
2
U nis
t
K/
W
V
Rt A
h
VF
-
-
-
-
* ald pr vi ed t atl ads ata di t nce of10m m fom case ar keptatam bi ntt m per t r .
V i o d
h e
sa
r
e
e e
aue
STAD-JUL.05.2004
PAGE . 1
M axi u m Zen er I p ed an ce
m
m
V
Z
@ I
ZT
P ar N um ber
t
N om .V
1. W at ZE N E R
0
t
1N 4728A
1N 4729A
1N 4730A
1N 4731A
1N 4732A
1N 4733A
1N 4734A
1N 4735A
1N 4736A
1N 4737A
1N 4738A
1N 4739A
1N 4740A
1N 4741A
1N 4742A
1N 4743A
1N 4744A
1N 4745A
1N 4746A
1N 4747A
1N 4748A
1N 4749A
1N 4750A
1N 4751A
1N 4752A
1N 4753A
1N 4754A
1N 4755A
1N 4756A
1N 4757A
1N 4758A
1N 4759A
1N 4760A
1N 4761A
1N 4762A
1N 4763A
1N 4764A
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.
0
11.
0
12.
0
13.
0
15.
0
16.
0
18.
0
20.
0
22.
0
24.
0
27.
0
30.
0
33.
0
36.
0
39.
0
43.
0
47.
0
51.
0
56.
0
62.
0
68.
0
75.
0
82.
0
91.
0
100.
0
3.
1
3.
4
3.
7
4.
1
4.
5
4.
8
5.
3
5.
9
6.
5
7.
1
7.
8
8.
6
9.
5
10.
5
11.
4
12.
4
14.
3
15.
2
17.
1
19.
0
20.
9
22.
8
25.
7
28.
5
31.
4
34.
2
37.
1
40.
9
44.
7
48.
5
53.
2
58.
9
64.
6
71.
3
77.
9
86.
5
95.
0
3.
5
3.
8
4.
1
4.
5
4.
9
5.
4
5.
9
6.
5
7.
1
7.
9
8.
6
9.
6
10.
5
11.
6
12.
6
13.
7
15.
8
16.
8
18.
9
21.
0
23.
1
25.
2
28.
4
31.
5
34.
7
37.
8
41.
0
45.
2
49.
4
53.
6
58.
8
65.
1
71.
4
78.
8
86.
1
95.
6
105.
0
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
3.
0
2.
8
2.
5
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
200
250
350
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
3000
3000
3000
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. 5
2
0. 5
2
0. 5
2
0. 5
2
0. 5
2
0. 5
2
0. 5
2
0. 5
2
0. 5
2
0. 5
2
0. 5
2
0. 5
2
0. 5
2
0. 5
2
0. 5
2
0. 5
2
0. 5
2
0. 5
2
0. 5
2
0. 5
2
0. 5
2
0. 5
2
0. 5
2
0. 5
2
0. 5
2
M i .V
n
M ax. V
mA
I
ZT
Z
ZT
@ I
ZT
Ω
Z
ZK
@ I
ZK
Ω
I
ZK
mA
M a x i u m Leakage C ur ent
m
r
I @ V
R
R
uA
V
M ar i g
kn
C ode
D O -4 1
D O -4 1 G
P ackage
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
5.
0
5.
0
5.
0
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
62.
2
69.
2
76.
0
-
-
-
-
-
-
-
-
-
-
-
-
-
1N 4741A
1N 4742A
1N 4743A
1N 4744A
1N 4745A
1N 4746A
1N 4747A
1N 4748A
1N 4749A
1N 4750A
1N 4751A
1N 4752A
1N 4753A
1N 4754A
1N 4755A
1N 4756A
1N 4757A
1N 4758A
1N 4759A
1N 4760A
1N 4761A
1N 4762A
1N 4763A
1N 4764A
4728A
4729A
4730A
4731A
4732A
4733A
4734A
4735A
4736A
4737A
4738A
4739A
4740A
4741A
4742A
4743A
4744A
4745A
4746A
4747A
4748A
4749A
4750A
4751A
4752A
4753A
4754A
4755A
4756A
4757A
4758A
4759A
4760A
4761A
4762A
4763A
4764A
D O - 1G
4
D O - 1G
4
D O - 1G
4
D O - 1G
4
D O - 1G
4
D O - 1G
4
D O - 1G
4
D O - 1G
4
D O - 1G
4
D O - 1G
4
D O - 1G
4
D O - 1G
4
D O - 1G
4
D O - 1/ O - 1G
4 D 4
D O - 1/ O - 1G
4 D 4
D O - 1/ O - 1G
4 D 4
D O - 1/ O - 1G
4 D 4
D O - 1/ O - 1G
4 D 4
D O - 1/ O - 1G
4 D 4
D O - 1/ O - 1G
4 D 4
D O - 1/ O - 1G
4 D 4
D O - 1/ O - 1G
4 D 4
D O - 1/ O - 1G
4 D 4
D O - 1/ O - 1G
4 D 4
D O - 1/ O - 1G
4 D 4
D O - 1/ O - 1G
4 D 4
D O - 1/ O - 1G
4 D 4
D O - 1/ O - 1G
4 D 4
D O - 1/ O - 1G
4 D 4
D O - 1/ O - 1G
4 D 4
D O - 1/ O - 1G
4 D 4
D O - 1/ O - 1G
4 D 4
D O - 1/ O - 1G
4 D 4
D O - 1/ O - 1G
4 D 4
D O - 1/ O - 1G
4 D 4
D O - 1/ O - 1G
4 D 4
D O - 1/ O - 1G
4 D 4
STAD-JUL.05.2004
PAGE . 2
NOTE:
1. Tolerance and Type Number Designation. The type umbers listed have a standard tolerance on the nominal zener
voltage of + 5%
2. Specials Available Include:
A. Nominal zener voltages between the voltages shown and tighter voltage tolerances.
B. Matched sets.
3. Zener Voltage (Vz) Measurement. Guarantees the zener voltage when measured at 90 seconds while maintaining
o
o
the lead temperature (T
L
) at 30 C + 1 C, from the diode body.
4. Zener Impedance (Zz) 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 (Izt or Izk) is superimposed on Izt or Izk.
5. Surge Current (Ir) Non-Repetitive. The rating listed in the electrical characteristics table is maximum peak,
non-repetitive, reverse surge current of 1/2
RATING AND CHARACTERISTICS CURVES
P
D
, MAXIMUM POWER DISSIPATION (WATTS)
1.0
L=LEAD LENGTH
TO HEAT SINK
0.75
0.5
0.25
0
0
20
40
60
80
100
120
140 160 180
O
200
T
L
, LEAD TEMPERATURE ( C)
FIGURE.1 POWER TEMPERATURE DERATING CURVE
a.RANGE FOR UNITS TO 12 VOLTS
b.RANGE FOR UNITS 12 TO 100 VOLTS
FIGURE.2 TEMPERATURE COEFICIENTS
O
O
(-55 C TO +150 C TEMPERATURE RANGE; 90% OF THE UNITS ARE IN THE RANGES INDICATED.)
STAD-JUL.05.2004
PAGE . 3
FIGURE.3TYPICAL THERMAL RESISTANCE
versus LEAD LENGTH
FIGURE.4 EFFECT OF ZENER CURRENT
FIGU R E.5 MAXIMUM SURGE POWER
FIGURE.6 EFFECT OF ZENER CURRENT ON ZENER IMPEDANCE
FIGURE.7 EFFECT OF ZENER VOLTAGE ON ZENER IMPEDANCE
STAD-JUL.05.2004
PAGE . 4
Vz, ZENER VOLTAGE (VOLTS)
FIGURE.9 TYPICAL CAPACITANCE versus Vz
FIGURE.8 TYPICAL LEAKAGE CURRENT
m
FIGURE.10 TYPICAL FORWARD CHARACTERISTICS
STAD-JUL.05.2004
PAGE . 5
Embedded System
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