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CZRL4728

型号:

CZRL4728

描述:

表面贴装齐纳二极管[ Surface Mount Zener Diodes ]

品牌:

COMCHIP[ COMCHIP TECHNOLOGY ]

页数:

3 页

PDF大小:

64 K

Surface Mount Zener Diodes  
COMCHIP  
www.comchip.com.tw  
CZRL4728 Thru CZRL4764  
Voltage: 3.3 - 100 Volts  
Power: 1 Watt  
Features  
Glass MELF (LL35)  
Cathode Mark  
Silicon Planar Power Zener Diodes  
For use in stabilizing and clipping circuits  
with higher power rating.  
Standard Zener voltage tolerance is  
10%. Add suffix “A” for 5% tolerance.  
Other Zener voltages and tolerances are  
available upon request.  
0.022 (0.55)  
0.205 (5.2)  
0.189 (4.8)  
Mechanical data  
Case: MELF Glass Case  
Weight: approx. 0.25g  
Dimensions in mm  
Maximum Ratings and Electrical Characterics  
Parameter  
Symbol  
Value  
Unit  
Zener Current (see Table “Characteristics)  
Power Dissipation at Tamb = 25°C  
1.0(1)  
Ptot  
W
°C/W  
°C  
170(1)  
200  
R
Thermal Resistance Junction to Ambient Air  
Junction Temperature  
JA  
Tj  
TS  
Storage Temperature Range  
–65 to +200  
°C  
Note: (1) Valid provided that electrodes are kept at ambient temperature  
MDS0302003A  
Page 1  
Surface Mount Zener Diodes  
COMCHIP  
www.comchip.com.tw  
Maximum Zener Impedance Max reverse Leakage  
Nominal  
Zener  
Voltage  
at IZT  
VZ (V)  
(Note 3.)  
Maximum  
Regulator  
Current  
IZM (mA)  
(Note 2.)  
(Note 1.)  
Current  
at  
Test  
current  
IZT  
Surge  
Current at  
TA = 25°C  
Ir(mA)  
at  
Type No.  
Z
ZT at IZT  
ZZK  
(Ohm)  
IZK  
(mA)  
IR  
(uA)  
VR  
(V)  
(mA)  
(Ohm)  
CZRL4728  
CZRL4729  
CZRL4730  
CZRL4731  
CZRL4732  
CZRL4733  
CZRL4734  
CZRL4735  
CZRL4736  
CZRL4737  
CZRL4738  
CZRL4739  
CZRL4740  
CZRL4741  
CZRL4742  
CZRL4743  
CZRL4744  
CZRL4745  
CZRL4746  
CZRL4747  
CZRL4748  
CZRL4749  
CZRL4750  
CZRL4751  
CZRL4752  
CZRL4753  
CZRL4754  
CZRL4755  
CZRL4756  
CZRL4757  
CZRL4758  
CZRL4759  
CZRL4760  
CZRL4761  
CZRL4762  
CZRL4763  
CZRL4764  
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  
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
10  
10  
9
9
8
7
5
2
3.5  
4
4.5  
5
7
8
9
10  
14  
16  
20  
22  
23  
25  
35  
40  
45  
50  
60  
70  
80  
95  
110  
125  
150  
175  
200  
250  
350  
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  
1
1
1
1
1
1
1
1
1
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  
100  
100  
50  
10  
10  
10  
10  
10  
10  
10  
10  
10  
10  
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
1
1
1
1
1
1
2
3
4
5
6
7
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  
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  
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
6.5  
6
5.5  
5
4.5  
4
3.7  
3.3  
3
90  
80  
70  
65  
60  
55  
50  
45  
62.2  
69.2  
76  
2.8  
2.5  
Notes: (1) The Zener impedance is derived from the 1KHZ AC voltage which results when an AC current having an RMS value equal to  
10% of the Zener current (IZTor 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 equilibrium and DC test conditions.  
Page 2  
MDS0302003A  
Surface Mount Zener Diodes  
COMCHIP  
www.comchip.com.tw  
Rating and Characteristic Curves (CZRL4728 Thru CZRL4764)  
1.0  
0.8  
0.6  
0.4  
0.2  
0
0
100  
200  
TA, AMBIENT TEMPERATURE (°C)  
Fig. 1, Power Derating Curve  
CZRL4728~CZRL4764  
Page 3  
MDS0302003A  
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