November, 2006 / C Page 1
Licensed by ON Semiconductor,
A trademark of semiconductor
Components Industries, LLC for
Zener Technology and Products.
TAK CHEON
G
®
1 Watt DO-41 Hermetically
Sealed Glass Zener Voltage
Regulators
Maximum Ratings
Rating Symbol Value Units
Maximum Steady State Power Dissipation
@TL≤50℃, Lead Length = 3/8”
Derate Above 50℃
PD
1
6.67
W
mW/℃
Operating and Storage
Temperature Range TJ, Tstg -65 to +200 °C
Specification Features:
Zener Voltage Range = 3.3V to 100V
ESD Rating of Class 3 (>6 KV) per Human Body Model
DO-41 Package (DO-204AL)
Double Slug Type Construction
Metallurgical Bonded Construction
Oxide Passivated Die
RoHS Compliant
Solder Hot Dip Tin (Sn) Lead Finish
Specification Features:
Case : Double slug type, hermetically sealed glass
Finish : All external surfaces are corrosion resistant and leads are readily solderable
Polarity : Cathode indicated by polarity band
Mounting: Any
1N4728A through 1N4764A Series
Cathode Anode
L = Logo
1N47xxA = Device Code
L
1N
47
xx
A
November, 2006 / C Page 2
Licensed by ON Semiconductor,
A trademark of semiconductor
Components Industries, LLC for
Zener Technology and Products.
TAK CHEON
G
®
ELECTRICAL CHARACTERISTICS (TA = 25℃ unless otherwise noted.)
Zener Voltage (Note 2 & 3.) Zener Impedance (Note 4.) Leakage Current
VZ (Volts) @IZT Z
ZT @IZT ZZK @IZK I
R @ VR
Device
(Note 1.)
Device
Marking Min Nom Max (mA) (Ω) (Ω) (mA) (uA Max) (Volts)
1N4728A
1N4729A
1N4730A
1N4731A
1N4732A
1N4728A
1N4729A
1N4730A
1N4731A
1N4732A
3.135
3.420
3.705
4.085
4.465
3.3
3.6
3.9
4.3
4.7
3.465
3.780
4.095
4.515
4.935
76
69
64
58
53
10
10
9
9
8
400
400
400
400
500
1
1
1
1
1
100
100
50
10
10
1
1
1
1
1
1N4733A
1N4734A
1N4735A
1N4736A
1N4737A
1N4733A
1N4734A
1N4735A
1N4736A
1N4737A
4.845
5.320
5.890
6.460
7.125
5.1
5.6
6.2
6.8
7.5
5.355
5.880
6.510
7.140
7.875
49
45
41
37
34
7
5
2
3.5
4
550
600
700
700
700
1
1
1
1
0.5
10
10
10
10
10
1
2
3
4
5
1N4738A
1N4739A
1N4740A
1N4741A
1N4742A
1N4738A
1N4739A
1N4740A
1N4741A
1N4742A
7.790
8.645
9.500
10.45
11.40
8.2
9.1
10
11
12
8.610
9.555
10.50
11.55
12.60
31
28
25
23
21
4.5
5
7
8
9
700
700
700
700
700
0.5
0.5
0.25
0.25
0.25
10
10
10
5
5
6
7
7.6
8.4
9.1
1N4743A
1N4744A
1N4745A
1N4746A
1N4747A
1N4743A
1N4744A
1N4745A
1N4746A
1N4747A
12.35
14.25
15.20
17.10
19.00
13
15
16
18
20
13.65
15.75
16.80
18.90
21.00
19
17
15.5
14
12.5
10
14
16
20
22
700
700
700
750
750
0.25
0.25
0.25
0.25
0.25
5
5
5
5
5
9.9
11.4
12.2
13.7
15.2
1N4748A
1N4749A
1N4750A
1N4751A
1N4752A
1N4748A
1N4749A
1N4750A
1N4751A
1N4752A
20.90
22.80
25.65
28.50
31.35
22
24
27
30
33
23.10
25.20
28.35
31.50
34.65
11.5
10.5
9.5
8.5
7.5
23
25
35
40
45
750
750
750
1000
1000
0.25
0.25
0.25
0.25
0.25
5
5
5
5
5
16.7
18.2
20.6
22.8
25.1
1N4753A
1N4754A
1N4755A
1N4756A
1N4757A
1N4753A
1N4754A
1N4755A
1N4756A
1N4757A
34.20
37.05
40.85
44.65
48.45
36
39
43
47
51
37.80
40.95
45.15
49.35
53.55
7
6.5
6
5.5
5
50
60
70
80
95
1000
1000
1500
1500
1500
0.25
0.25
0.25
0.25
0.25
5
5
5
5
5
27.4
29.7
32.7
35.8
38.8
1N4758A
1N4759A
1N4760A
1N4761A
1N4762A
1N4763A
1N4764A
1N4758A
1N4759A
1N4760A
1N4761A
1N4762A
1N4763A
1N4764A
53.20
58.90
64.60
71.25
77.90
86.45
95.00
56
62
68
75
82
91
100
58.80
65.10
71.40
78.75
86.10
95.55
105.0
4.5
4
3.7
3.3
3
2.8
2.5
110
125
150
175
200
250
350
2000
2000
2000
2000
3000
3000
3000
0.25
0.25
0.25
0.25
0.25
0.25
0.25
5
5
5
5
5
5
5
42.6
47.1
51.7
56.0
62.2
69.2
76.0
VF = 1.2V Max @IF = 200mA for 60V below types, and VF = 1.4V Max @IF = 200mA for 60V above types
1. TOLERANCE AND TYPE NUMBER DESIGNATION (VZ)
The type numbers listed have a standard tolerance on the nominal zener voltage of ± 5%.
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.
November, 2006 / C Page 3
Licensed by ON Semiconductor,
A trademark of semiconductor
Components Industries, LLC for
Zener Technology and Products.
TAK CHEON
G
®
3. ZENER VOLTAGE (VZ) MEASUREMENT
The zener voltage (VZ) is tested under pulse condition. The measured VZ is guaranteed to be within specification with device junction in
thermal equilibrium.
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.
November, 2006 / C Page 4
Licensed by ON Semiconductor,
A trademark of semiconductor
Components Industries, LLC for
Zener Technology and Products.
TAK CHEON
G
®
Package Outline
Case Outline
DO-41
Millimeters Inches
DIM
Min Max Min Max
A 0.72 0.86 0.028 0.034
B 4.07 5.20 0.160 0.205
C 25.40 --- 1.000 ---
D 2.04 2.71 0.080 0.107
Note: all dimensions are within JEDEC standard.
This datasheet presents technical data of Tak Cheong’s Zener Diodes. Complete specifications for the individual devices are
provided in the form of datasheets. A comprehensive Selector Guide is included to simplify the task of choosing the best set of
components required for a specific application. For additional information, please visit our website http://www.takcheong.com.
Although information in this datasheet has been carefully checked, no responsibility for the inaccuracies can be assumed by Tak
Cheong. Please consult your nearest Tak Cheong’s sales office for further assistance.
Tak Cheong reserves the right to make changes without further notice to any products herein to further improve reliability,
function or design, cost and productivity.
and are registered trademarks of Tak Cheong Electronics (Holdings) Co., Ltd.
TAK CHEONG
®
