®
1SMA4728A – SZ1330A
WON-TOP ELECTRONICS
Electrical Characteristics (@TA=25°C unless otherwise specified) Table 1
Nominal
Max DC Max Surge
Test
Maximum Zener Impedance
(Note 3)
Maximum
Zener Voltage
(Note 2)
Zener
Current
8.3ms
Type
Device
Marking
Code
Current
Leakage Current
Current
Number
(Note 1)
VZ @ IZT
(V)
IZT
ZZT @ IZT ZZK @ IZK
IZK
IR @ VR
IZM
IZS
(mA)
(Ω)
(Ω)
(mA)
(µA)
(V)
(mA)
(mA)
1SMA4728A
1SMA4729A
1SMA4730A
1SMA4731A
1SMA4732A
28A
29A
30A
31A
32A
3.3
3.6
3.9
4.3
4.7
76.0
69.0
64.0
58.0
53.0
10
10
9.0
9.0
8.0
400
400
400
400
500
1.00
1.00
1.00
1.00
1.00
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
1SMA4733A
1SMA4734A
1SMA4735A
1SMA4736A
1SMA4737A
33A
34A
35A
36A
37A
5.1
5.6
6.2
6.8
7.5
49.0
45.0
41.0
37.0
34.0
7.0
5.0
2.0
3.5
4.0
550
600
700
700
700
1.00
1.00
1.00
1.00
0.50
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
1SMA4738A
1SMA4739A
1SMA4740A
1SMA4741A
1SMA4742A
38A
39A
40A
41A
42A
8.2
9.1
10
11
31.0
28.0
25.0
23.0
21.0
4.5
5.0
7.0
8.0
9.0
700
700
700
700
700
0.50
0.50
0.25
0.25
0.25
10
10
10
5
6.0
7.0
7.6
8.4
9.1
110
100
91
83
76
550
500
454
414
380
12
5
1SMA4743A
1SMA4744A
1SMA4745A
1SMA4746A
1SMA4747A
43A
44A
45A
46A
47A
13
15
16
18
20
19.0
17.0
15.5
14.0
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
69
61
57
50
45
344
304
285
250
225
11.4
12.2
13.7
15.2
1SMA4748A
1SMA4749A
1SMA4750A
1SMA4751A
1SMA4752A
48A
49A
50A
51A
52A
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
5
5
5
5
16.7
18.2
20.6
22.8
25.1
41
38
34
30
27
205
190
170
150
135
1SMA4753A
1SMA4754A
1SMA4755A
1SMA4756A
1SMA4757A
53A
54A
55A
56A
57A
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
5
5
5
5
27.4
29.7
32.7
35.8
38.8
25
23
22
19
18
125
115
110
95
90
1SMA4758A
1SMA4759A
1SMA4760A
1SMA4761A
1SMA4762A
58A
59A
60A
61A
62A
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
5
5
5
5
42.6
47.1
51.7
56.0
62.2
16
14
13
12
11
80
70
65
60
55
1SMA4763A
1SMA4764A
SZ1110A
SZ1120A
SZ1130A
63A
64A
11Z
12Z
13Z
91
2.8
2.5
2.3
2.0
1.9
250
350
450
550
700
3000
3000
4000
4500
5000
0.25
0.25
0.25
0.25
0.25
5
5
5
5
5
69.2
76.0
83.6
91.2
98.8
10
9.0
8.6
7.8
7.0
50
45
40
37
34
100
110
120
130
SZ1150A
SZ1160A
SZ1180A
SZ1200A
SZ1220A
15Z
16Z
18Z
20Z
22Z
150
160
180
200
220
1.7
1.6
1.4
1.2
1.0
1000
1100
1200
1900
1600
6000
6500
7000
9990
8000
0.25
0.25
0.25
0.25
0.25
5
5
5
5
5
114.0
121.6
136.8
152.0
167.2
6.4
5.8
5.2
4.7
4.0
30
28
25
22
20
SZ1240A
SZ1250A
SZ1270A
SZ1300A
SZ1330A
24Z
25Z
27Z
30Z
33Z
240
250
270
300
330
0.9
0.9
0.8
0.8
0.7
1800
2000
2100
2300
2500
8500
9000
9000
9500
9500
0.25
0.25
0.25
0.25
0.25
5
5
5
5
5
182.4
190.0
205.0
228.0
250.2
3.8
3.6
3.3
3.0
2.7
19
18
16
15
13
Note: 1. Type numbers listed have standard tolerance on the nominal zener voltage of ±5%.
2. Measured under thermal equilibrium and DC (IZT) test conditions.
3. f = 1KHz
© Won-Top Electronics Co., Ltd.
Revision: September, 2012
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