1N4728A – 1N4764A 1 of 4 © 2006 Won-Top Electronics
Pb
1N4728A – 1N4764A
1.0W ZE NER DIODE
Features
Glass Passivated Die Construction
1.0 Watt Power Dissipation
3.3 – 100V Nomimal Zener Voltage A B A
5% Standard Vz Tolerance
Low Inductance
Typical IR Less Than 5.0µA Above 11V
Plastic Case Material Has UL Flammability
Classification Rating 94V-O C
D
Mechanical Data
Case: DO-41, Molded Plastic
Terminals: Axial Leads, Solderable per
MIL-STD- 202, Met hod 208
Polarity: Cathode Band
Marking: Type Number
Weight: 0.35 grams (approx.)
Lead Free: For RoHS / Lead Free Version,
Add “-LF” Suffix to Part Number, See Page 4
Maximum Ratings @TA=25°C unless otherwise specified
Characteristic Symbol Value Unit
DC Power Dissipati o n at TL = 50°C (Note 1)
Derate above 50°C Pd 1.0
6.67 W
mW/°C
Forward Voltage @ IF = 200mA VF 1.2 V
Thermal Resistance Junction to A mbient (Note 2) RθJA 170 K/W
Operating and Storage Temperature Range Tj, TSTG -65 to +150 °C
Note: 1. Measured at lead length 3/8” (9.5mm) from body.
2. Valid provided that leads are kept at ambient temperature at a distance of 10mm from the cas e.
DO-41
Dim Min Max
A 25.40 —
B 4.06 5.21
C 0.71 0.864
D 2.00 2.72
All Dimensions in mm
WTE
POWER SEM IC ON DUC TOR S
1N4728A – 1N4764A 2 of 4 © 2006 Won-Top Electronics
Electrical Characteristics @TA=25°C unless otherwise specifi ed
Nominal Zener
Voltage (Note 2) Test
Current Maximum Zener Impedance
(Note 3) Leakage Current Max DC Zener
Current Max Surge
Current 8.3ms
VZ @ IZT IZT ZZT @ IZT ZZK @ IZK IZK IR @ VRIZM IZS
Type
Number
(Note 1) (V) (mA) (Ω
ΩΩ
Ω) (Ω
ΩΩ
Ω) (mA) (µA) (V) (mA) (mA)
1N4728A
1N4729A
1N4730A
1N4731A
1N4732A
3.3
3.6
3.9
4.3
4.7
76
69
64
58
53
10
10
9.0
9.0
8.0
400
400
400
400
500
1.0
1.0
1.0
1.0
1.0
100
100
50
10
10
1.0
1.0
1.0
1.0
1.0
276
252
234
217
193
1380
1260
1190
1070
970
1N4733A
1N4734A
1N4735A
1N4736A
1N4737A
5.1
5.6
6.2
6.8
7.5
49
45
41
37
34
7.0
5.0
2.0
3.5
4.0
550
600
700
700
700
1.0
1.0
1.0
1.0
0.5
10
10
10
10
10
1.0
2.0
3.0
4.0
5.0
178
162
146
133
121
890
810
730
660
605
1N4738A
1N4739A
1N4740A
1N4741A
1N4742A
8.2
9.1
10
11
12
31
28
25
23
21
4.5
5.0
7.0
8.0
9.0
700
700
700
700
700
0.5
0.5
0.25
0.25
0.25
10
10
10
5.0
5.0
6.0
7.0
7.6
8.4
9.1
110
100
91
83
76
550
500
454
414
380
1N4743A
1N4744A
1N4745A
1N4746A
1N4747A
13
15
16
18
20
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
5.0
5.0
5.0
5.0
5.0
9.9
11.4
12.2
13.7
15.2
69
61
57
50
45
344
304
285
250
225
1N4748A
1N4749A
1N4750A
1N4751A
1N4752A
22
24
27
30
33
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
5.0
5.0
5.0
5.0
5.0
16.7
18.2
20.6
22.8
25.1
41
38
34
30
27
205
190
170
150
135
1N4753A
1N4754A
1N4755A
1N4756A
1N4757A
36
39
43
47
51
7.0
6.5
6.0
5.5
5.0
50
60
70
80
95
1000
1000
1500
1500
1500
0.25
0.25
0.25
0.25
0.25
5.0
5.0
5.0
5.0
5.0
27.4
29.7
32.7
35.8
38.8
25
23
22
19
18
125
115
110
95
90
1N4758A
1N4759A
1N4760A
1N4761A
1N4762A
56
62
68
75
82
4.5
4.0
3.7
3.3
3.0
110
125
150
175
200
2000
2000
2000
2000
3000
0.25
0.25
0.25
0.25
0.25
5.0
5.0
5.0
5.0
5.0
42.6
47.1
51.7
56.0
62.2
16
14
13
12
11
80
70
65
60
55
1N4763A
1N4764A 91
100 2.8
2.5 250
350 3000
3000 0.25
0.25 5.0
5.0 69.2
76.0 10
9.0 50
45
Note: 1. Type numbers list ed have standard toleranc e on the nominal zener voltage of ±5%.
2. Measured under thermal equilibrium and DC (IZT) test c onditi ons.
3. The Zener impedance is derived from the 60Hz AC voltage which results when an AC current having an RMS value equal to 10%
of the Zener current (IZT or IZK) is superimposed on IZT or IZK. Zener im pedance is measured at two points to insure a sharp knee
on the breakdown curve and to eliminate unstable units.
1N4728A – 1N4764A 3 of 4 © 2006 Won-Top Electronics
MARKING INFORMATION TAPING SPECIFICATIONS
PACKAGING INFORMATION
Packaging Reel Diameter /
Box Size (mm) Quantity
(PCS) Carton Size
(mm) Quantity
(PCS) Approx. Gross Weight
(KG)
TAPE & REEL 330 5,000 370 x 370 x 420 25,000 13.0
TAPE & BOX 255 x 75 x 150 5,000 400 x 273 x 415 50, 000 21.0
BULK 198 x 84 x 20 1,000 459 x 214 x 256 50,000 19.5
Note: 1. Paper reel, white or gray color. Core material: plastic or metal.
2. Components are packed in accordance with EIA standard RS-296-E.
TAPE & REEL
Cathode = Polarity Band
1N47xxA = Device Number
xx = 28, 29, 30…to 64
WTE = Manufacturer’s Logo
1N47xxA
WTE
0.8mm
MAX
5mm
1.2mm
MAX
0.8mm
MAX
6mm 52.4mm
Cathode Tape: Red
Anode Tape: White
330mm
Product ID Label
Inspection Hole
(both ends)
80±5mm
TAPE & BOX
255mm
Product ID Label
150mm
75mm
BULK
198mm
84mm
20mm
1N4728A – 1N4764A 4 of 4 © 2006 Won-Top Electronics
ORDERING INFORMATION
Product No. Package Type Shipping Quantity
1N47xxA-T3 DO-41 5000/Tape & Reel
1N47xxA-TB DO-41 5000/Tape & Box
1N47xxA DO-41 1000 Units/Box
1. Products listed in bold are WTE Preferred devices.
2. Shipping qu antit y giv en is for mini m um packing qu antity only. For mini m um
order quantity, please consult the Sales Department.
3. To or d er RoHS / Lead Fre e ver si on ( wi t h Lea d Fr ee finish), ad d “-L F”
suffix to part number abo ve. For ex a m ple, 1N4728 A-TB-LF.
Won-Top Electronics Co., Ltd (WTE) has checked all information carefully and believes it to be correct and accurate. However, WTE cannot assume any
responsibility for inaccuracies. Furthermore, this information does not give the purchaser of semiconductor devices any license under patent rights to
manufacturer . WTE reserves the right to change any or all information herein without further notice.
WARNING: DO NOT USE IN LIFE SUPPORT EQUIPMENT. WTE power semiconductor products are not authorized for use as critical components in life
support devices or systems without the express written approval.
We power your everyday.
Won-Top Electronics Co., Ltd.
No. 44 Yu Kang North 3rd Road, Chine Chen Dist., Kaohs i ung, Taiwan
Phone: 886-7-822-5408 or 886-7-822-5410
Fax: 886-7-822-5417
Email: sales@wontop.com
Internet: http://www.wontop.com
