1N
472
8A
through 1N
4
758
A Ser
i
es
1 Watt DO-41 Hermetically
Sealed Glass Zener Voltage
Regulators
Absolute Maximum Ratings
T
A
= 25C unless otherwise noted
Parameter Value
Units
Storage Temperature Range
-65 to +200
C
Maximum Junction Operating Temperature
+200
C
Total Device Dissipation
1.0
Watt
Thermal Resistance Junction to Lead
53.5
C / W
Thermal Resistance Junction to Ambient
100
C / W
Lead Temperature (1/16" from case for 10 seconds)
+230
C
These ratings are limiting values above which the serviceability of the diode may be impaired.
Specification Features:
Zener Voltage Range 3.3 to 56 Volts
DO-41 Package (JEDEC)
Through-Hole Device Type Mounting
Hermetically Sealed Glass
Compression Bonded Construction
All external surfaces are corrosion resistant and leads are readily solderable
Cathode indicated by polarity band
AXIAL LEAD
DO-41
DEVICE MARKING DIAGRAM
L
1N
47
xx
A
L :
Logo
Device Code : 1N47xxA
Cathode
Anode
ELECTRICAL SYMBOL
Electrical Characteristics
T
A
= 25C unless otherwise noted
Device Type
V
Z
@ I
ZT
(Volts)
Nominal
I
ZT
(mA)
Z
ZT
@ I
ZT
(
)
Max
I
ZK
(mA)
Z
ZK
@ I
ZK
(
)
Max
I
R
@ V
R
(
A)
Max
V
R
(Volts)
1N4728A
3.3 76 10 1 400 100 1
1N4729A
3.6 69 10 1 400 100 1
1N4730A 3.9
64
9
1
400
50
1
1N4731A 4.3
58
9
1
400
10
1
1N4732A 4.7
53
8
1
500
10
1
1N4733A 5.1
49
7
1
550
10
1
1N4734A 5.6
45
5
1
600
10
2
1N4735A 6.2
41
2
1
700
10
3
1N4736A
6.8 37 3.5 1 700 10 4
1N4737A 7.5
34
4
0.5
700
10
5
1N4738A
8.2 31 4.5 0.5 700 10 6
1N4739A 9.1
28
5
0.5
700
10
7
1N4740A 10
25
7
0.25 700
10
7.6
1N4741A 11
23
8
0.25 700
5
8.4
1N4742A 12
21
9
0.25 700
5
9.1
1N4743A
13 19 10 0.25
700 5 9.9
1N4744A 15
17
14 0.25 700
5
11.4
1N4745A
16 15.5 16 0.25 700 5 12.2
1N4746A 18
14
20 0.25 700
5
13.7
1N4747A
20 12.5 22 0.25 750 5 15.2
1N4748A
22 11.5 23 0.25 750 5 16.7
October 2003 / B
Page
1
Electrical Characteristics
T
A
= 25C unless otherwise noted
Device
Type
V
Z
@ I
ZT
(Volts)
Nominal
I
ZT
(mA)
Z
ZT
@ I
ZT
(
)
Max
I
ZK
(mA)
Z
ZK
@ I
ZK
(
)
Max
I
R
@ V
R
(
A)
Max
V
R
(Volts)
1N4749A
24 10.5 25 0.25 750 5 18.2
1N4750A 27
9.5
35 0.25 750
5
20.6
1N4751A 30
8.5
40 0.25 1000
5
22.8
1N4752A 33
7.5
45 0.25 1000
5
25.1
1N4753A 36
7
50 0.25 1000
5
27.4
1N4754A 39
6.5
60 0.25 1000
5
29.7
1N4755A 43
6
70 0.25 1500
5
32.7
1N4756A 47
5.5
80 0.25 1500
5
35.8
1N4757A 51
5
95 0.25 1500
5
38.8
1N4758A 56
4.5 110 0.25 2000
5
42.6
V
F
Forward Voltage = 1.2 V Maximum @ I
F
= 200 mA for all types
Notes:
1. The device numbers listed have a standard tolerance on the nominal zener voltage of
5%.
2. For detailed information on price, availability and delivery of nominal zener voltages between the voltages shown and tighter
voltage tolerances, contact your nearest Synsemi representative.
3. 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 to I
ZT
or I
ZK.
Electrical Symbol Definition
Typical Characteristics
Symbol Parameter
V
Z
Reverse Zener Voltage @ I
ZT
I
ZT
Reverse Current
Z
ZT
Maximum Zener Impedance @ I
ZT
I
ZK
Reverse Current
Z
ZK
Maximum Zener Impedance @ I
ZK
I
R
Reverse Leakage Current @ V
R
V
R
Breakdown Voltage
I
F
Forward Current
V
F
Forward Voltage @ I
F
(nA)
V
Z
V
R
I
R
I
ZT
I
F
V
F
(mA)
(mA)
(V)
(mV)
I
V
Ordering Information
Device Package
Quantity
1N47xxA Bulk
5,000
1N47xxA.TB Tape
and
Ammo
3,000
1N47xxA.TR Tape
and
Reel
5,000
October 2003 / B
Page
2
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