WTE
POWER SEMICONDUCTORS
1N4728A – 1N4764A
Pb
1.0W ZENER DIODE
Features
Glass Passivated Die Construction
1.0 Watt Power Dissipation
3.3 – 100V Nomimal Zener Voltage
5% Standard Vz Tolerance
Low Inductance
Typical I
R
Less Than 5.0µA Above 11V
Plastic Case Material Has UL Flammability
Classification Rating 94V-O
A
B
A
C
D
Mechanical Data
Case: DO-41, Molded Plastic
Terminals: Axial Leads, Solderable per
MIL-STD-202, Method 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
Dim
Max
A
25.40
—
B
4.06
5.21
C
0.71
0.864
D
2.00
2.72
All Dimensions in mm
DO-41
Min
Maximum Ratings
@T
A
=25°C unless otherwise specified
Characteristic
DC Power Dissipation at T
L
= 50°C (Note 1)
Derate above 50°C
Forward Voltage @ I
F
= 200mA
Thermal Resistance Junction to Ambient (Note 2)
Operating and Storage Temperature Range
Symbol
P
d
V
F
R
θJA
T
j
, T
STG
Value
1.0
6.67
1.2
170
-65 to +150
Unit
W
mW/°C
V
K/W
°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 case.
1N4728A – 1N4764A
1 of 4
© 2006 Won-Top Electronics
Electrical Characteristics
Nominal Zener
Voltage (Note 2)
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
1N4762A
1N4763A
1N4764A
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
82
91
100
@T
A
=25°C unless otherwise specified
Type
Number
(Note 1)
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
3.0
2.8
2.5
Maximum Zener Impedance
(Note 3)
Z
ZT
@ I
ZT
(Ω)
Ω
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
Z
ZK
@ I
ZK
(Ω)
Ω
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
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
0.25
0.25
0.25
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
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
62.2
69.2
76.0
Max DC Zener Max Surge
Current
Current 8.3ms
I
ZM
(mA)
276
252
234
217
193
178
162
146
133
121
110
100
91
83
76
69
61
57
50
45
41
38
34
30
27
25
23
22
19
18
16
14
13
12
11
10
9.0
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
55
50
45
Note: 1. Type numbers listed have standard tolerance on the nominal zener voltage of ±5%.
2. Measured under thermal equilibrium and DC (I
ZT
) test conditions.
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 (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.
1N4728A – 1N4764A
2 of 4
© 2006 Won-Top Electronics
MARKING INFORMATION
TAPING SPECIFICATIONS
0.8mm
MAX
5mm
1N 4 7x x A
WTE
Cathode
1N47xxA
xx
WTE
= Polarity Band
= Device Number
= 28, 29, 30…to 64
= Manufacturer’s Logo
1.2mm
MAX
6mm
52.4mm
Cathode Tape: Red
Anode Tape: White
0.8mm
MAX
PACKAGING INFORMATION
TAPE & BOX
TAPE & REEL
Product ID Label
150mm
Inspection Hole
(both ends)
330mm
255mm
75mm
BULK
80±5mm
20mm
198mm
Product ID Label
84mm
Packaging
TAPE & REEL
TAPE & BOX
BULK
Reel Diameter /
Box Size (mm)
330
255 x 75 x 150
198 x 84 x 20
Quantity
(PCS)
5,000
5,000
1,000
Carton Size
(mm)
370 x 370 x 420
400 x 273 x 415
459 x 214 x 256
Quantity
(PCS)
25,000
50,000
50,000
Approx. Gross Weight
(KG)
13.0
21.0
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.
1N4728A – 1N4764A
3 of 4
© 2006 Won-Top Electronics
ORDERING INFORMATION
Product No.
1N47xxA-T3
1N47xxA-TB
1N47xxA
1.
2.
3.
Package Type
DO-41
DO-41
DO-41
Shipping Quantity
5000/Tape & Reel
5000/Tape & Box
1000 Units/Box
Products listed in
bold
are WTE
Preferred
devices.
Shipping quantity given is for minimum packing quantity only. For minimum
order quantity, please consult the Sales Department.
To order RoHS / Lead Free version (with Lead Free finish), add “-LF”
suffix to part number above. For example, 1N4728A-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.
Won-Top Electronics Co., Ltd.
No. 44 Yu Kang North 3rd Road, Chine Chen Dist., Kaohsiung, 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
We power your everyday.
1N4728A – 1N4764A
4 of 4
© 2006 Won-Top Electronics
