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1N4757A View Datasheet(PDF) - CHENG-YI ELECTRONIC CO., LTD.

Part NameDescriptionManufacturer
1N4757A 1W SILICON PLANAR ZENER DIODES Chenyi-Electronics
CHENG-YI ELECTRONIC CO., LTD. Chenyi-Electronics
1N4757A Datasheet PDF : 4 Pages
1 2 3 4
CE
CHENYI ELECTRONICS
1N4728 THRU 1N4764
1W SILICON PLANAR ZENER DIODES
1N4728…1N4764 SILICON PLANAR ZENER DIODES
Type
Nominal
Zener
Voltage 3)
at
Test
Current
Maximum Zener Impedance 1)
at
at
Maximum
reverse leakage current
Surge
current
at TA=0.25
Maximum
regulator
Current 2)
IZT
IZT
ZZK
IZK
at VR
IR
IZM
VZ V
IZT mA
ZZT
mA
IR A
V
mA
mA
1N4728
3.3
76
10
1N4729
3.6
69
10
400
1N4730
3.9
64
9
100
1.0
1380
276
1.0
1260
252
50
1.0
1190
234
1N4731
4.3
58
9
1N4732
4.7
53
8
500
1.0
1.0
1070
217
1.0
970
193
1N4733
5.1
49
7
550
1.0
890
178
1N4734
5.6
45
5
600
2.0
810
162
1N4735
6.2
41
2
1N4736
6.8
37
3.5
3.0
730
146
10
4.0
660
133
1N4737
7.5
34
4.0
1N4738
8.2
31
4.5
5.0
605
121
5.0
6.0
550
110
1N4739
9.1
28
5.0
1N4740
10
25
7
700
7.0
500
100
7.6
454
91
1N4741
11
23
8
8.4
414
83
1N4742
12
21
9
9.1
380
76
1N4743
13
19
10
9.9
344
69
1N4744
15
17
14
11.4
304
61
1N4745
16
15.5
16
12.2
285
57
1N4746
18
14
20
13.7
250
50
1N4747
20
12.5
22
1N4748
22
11.5
23
750
15.2
225
45
16.7
205
41
1N4749
24
10.5
25
18.2
190
38
1N4750
27
9.5
35
20.6
170
34
1N4751
30
8.5
40
22.8
150
30
1N4752
33
7.5
45
0.25
25.1
135
27
1000
5
1N4753
36
7.0
50
27.4
125
25
1N4754
39
6.5
60
29.7
115
23
1N4755
43
6.0
70
1N4756
47
5.5
80
1500
32.7
110
22
35.8
95
19
1N4757
51
5.0
95
38.8
90
18
1N4758
56
4.5
110
42.6
80
16
1N4759
62
4.0
125
2000
1N4760
68
3.7
150
47.1
70
14
51.7
65
13
1N4761
75
3.3
175
56.0
60
12
1N4762
82
3.0
200
1N4763
91
2.8
250
3000
62.2
55
11
69.2
50
10
1N4764
100
2.5
350
76.0
45
9
Notes:1) The Zener impedance is derived from the 1KHz AC voltage which results when an AC current having an RMS calue equal to 10% of the Zener
current(IZT or IZK) is superimposed on IZT or IZK. Zener impedance is measured at two points to insure a sharp knee on the
breakdown curve and to eliminate unstable units.
2)Valid provided that electrodes at a distance of 10mm from case are kept at ambient temperature
3)Measured under thermal equilibriun and DC test conditions.
Copyright @ 2000 SHANGHAI CHENYI ELECTRONICS CO.,LTD
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