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DL4740A

更新时间：2024-11-08 08:24:56
品牌：DIOTECH
描述：1W EPITAXIAL ZENER DIODE

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DL4740A 概述

1W EPITAXIAL ZENER DIODE 1W外延稳压二极管

DL4740A 数据手册

通过下载DL4740A数据手册来全面了解它。这个PDF文档包含了所有必要的细节，如产品概述、功能特性、引脚定义、引脚排列图等信息。

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DL4728A THRU DL4764A  
1W EPITAXIAL ZENER DIODE  
FEATURES  
• Low profile package  
• Built-in strain relief  
• Low inductance  
A
• High temperature soldering : 260°C /10 seconds at terminals  
• Glass package has Underwriters Laboratory Flammability  
Classification  
B
• In compliance with EU RoHS 2002/95/EC directives  
C
MECHANICAL DATA  
• Case: Molded Glass LL-41  
• Terminals: Axial leads, solderable per MIL-STD-750,  
MELF  
Method 2026 guaranteed  
• Polarity: Color band denotes positive end  
• Mounting position:Any  
Dim  
A
B
Min  
4.80  
2.40  
0.46  
Max  
5.20  
2.67  
0.60  
• Weight: 0.25 gram  
C
ABSOLUTE MAXIMUM RATINGS(LIMITING VALUES)(TA=25℃)  
Symbols  
Value  
Units  
Zener current see table "Characteristics"  
Power dissipation at TA=50℃  
Junction temperature  
W
1 1)  
175  
Ptot  
TJ  
℃
℃
-65 to +200  
Storage temperature range  
TSTG  
1)Valid provided that a distance of 8mm from case are kept at ambient temperature  
ELECTRCAL CHARACTERISTICS(TA=25℃)  
Symbols  
RthA  
Min  
Typ  
Max  
170 1)  
1.2  
Units  
℃/W  
V
Thermal resistance junction to ambient  
Forward voltage at IF=200mA  
VF  
1) Valid provided that a distance at 8mm from case are kept at ambient temperature  
DL4728A THRU DL4764A  
1W EPITAXIAL ZENER DIODE  
Nominal  
Zener  
Voltage (1)  
Max Surge Maximum  
Current  
8.3ms  
Test  
Current  
Maximum Reverse  
Leakage Current  
Maximum Zener Impedance (2)  
Zener  
Current  
Type  
Number  
VZ @ IZT  
V
IZT  
mA  
76  
ZZT @ IZT  
ZZK @ IZK  
IZK  
IR  
@ VR  
V
IZS  
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  
IZM  
mA  
276  
252  
234  
217  
193  
178  
162  
146  
133  
121  
110  
100  
91  
mA  
µA  
DL4728A  
DL4729A  
DL4730A  
DL4731A  
DL4732A  
DL4733A  
DL4734A  
DL4735A  
DL4736A  
DL4737A  
DL4738A  
DL4739A  
DL4740A  
DL4741A  
DL4742A  
DL4743A  
DL4744A  
DL4745A  
DL4746A  
DL4747A  
DL4748A  
DL4749A  
DL4750A  
DL4751A  
DL4752A  
DL4753A  
DL4754A  
DL4755A  
DL4756A  
DL4757A  
DL4758A  
DL4759A  
DL4760A  
DL4761A  
DL4762A  
DL4763A  
DL4764A  
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  
10  
10  
400  
400  
1.0  
100  
100  
50  
1.0  
69  
1.0  
1.0  
64  
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  
400  
1.0  
1.0  
58  
400  
1.0  
10  
1.0  
53  
500  
1.0  
10  
1.0  
49  
550  
1.0  
10  
1.0  
45  
600  
1.0  
10  
2.0  
41  
700  
1.0  
10  
3.0  
37  
700  
1.0  
10  
4.0  
34  
700  
0.5  
10  
5.0  
31  
700  
0.5  
10  
6.0  
28  
700  
0.5  
10  
7.0  
25  
700  
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  
10  
7.6  
11  
23  
700  
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  
8.4  
83  
12  
21  
700  
9.1  
76  
13  
19  
700  
9.9  
69  
15  
17  
14  
700  
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  
61  
16  
15.5  
14  
16  
700  
57  
18  
20  
750  
50  
20  
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  
22  
750  
45  
22  
23  
750  
41  
24  
25  
750  
38  
27  
35  
750  
34  
30  
40  
1000  
1000  
1000  
1000  
1500  
1500  
1500  
2000  
2000  
2000  
2000  
3000  
3000  
3000  
30  
33  
45  
27  
36  
50  
25  
39  
60  
23  
43  
70  
22  
47  
80  
19  
51  
95  
90  
18  
56  
110  
125  
150  
175  
200  
250  
350  
80  
16  
62  
70  
14  
68  
65  
13  
75  
60  
12  
82  
55  
11  
91  
50  
10  
100  
45  
9.0  
Notes:  
1. Measured under thermal equilibrium and DC (IZT) test conditions.  
2. 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 IZTor IZK .Zener impedance is measured at two points to insure a  
sharp knee on the breakdown curve and to eliminate unstable units.  
DL4728A THRU DL4764A  
RATINGS AND CHARACTERISTIC CURVES  
FIG.1 -- BREAKDOWNCHARACTERISTICS  
Vz (V)  
30  
5
10  
15  
20  
25  
100  
80  
60  
40  
20  
0
FIG.2 -- ADMISSIBLEPOWERDISSIPATIONVERSUS AMBIENT TEMPERATURE  
1.0  
0.8  
0.6  
0.4  
0.2  
0
50  
100  
150  
200  
250  
AMBIENT TEMPERATURE, OC  

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