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CZRA4742

型号：

CZRA4742

描述：

表面贴装稳压二极管[ SURFACE MOUNT ZENER DIODE ]

品牌：

COMCHIP[ COMCHIP TECHNOLOGY ]

页数：

4 页

PDF大小：

113 K

下载PDF手册
SURFACE MOUNT ZENER DIODE  
SURFACE MOUNT ZENER DIODE  
COMCHIP  
COMCHIP  
www.comchip.com.tw  
www.comchip.com.tw  
CZRA4741 - CZRA4764  
Voltage: 11- 100 Volts  
Power: 1.0 Watts  
FEATURES  
- For surf ace mounted applications in order to  
optimize board space  
DO-214AC (SMA)  
- Low profile package  
- Built-in strain relief  
- Glass passiv ated junction  
- Low inductance  
0.067(1.70)  
0.051(1.29)  
0.110(2.79)  
0.086(2.18)  
0.180(4.57)  
0.160(4.06)  
- Typical IR less than 5.0uA above 11V  
- High temper ature soldering :  
260°C / 10 seconds at terminals  
U
0.012(0.31)  
0.006(0.15)  
- Plastic package has Underwriters Laboratory  
Flammability Classification 94V-O  
0.091(2.31)  
0.067(1.70)  
0.008(0.20)  
0.004(0.10)  
0.059(1.50)  
0.035(0.89)  
0.209(5.31)  
0.185(4.70)  
MECHANICAL DATA  
Case: JEDEC DO-214AC, Molded plastic  
over passivated junction  
Terminals: Solder plated, solderable per  
MIL-STD-750, method 2026  
Dimensionsininchesand(millimeters)  
Polarity: Color band denotes positive end(cathode)  
Standard Packaging: 12mm tape(EIA-481)  
Weight: 0.002 ounce, 0.064 gram  
MaximumRatingsandElectricalCharacterics  
°C  
Ratings at 25 ambient temperature unless otherwise specified.  
SYMBOL  
PD  
VALUE  
1.0  
6.67  
UNITS  
Watts  
mW/°C  
Peak Pulse Power Dissipation on TA= 50°C (Note A)  
Derate above 50°C  
Peak forward Surge Current 8.3ms single half sine-wave  
superimposed on rated load(JEDEC Method) (Note B)  
Operating Junction and Storage Temperature Range  
IFSM  
10  
Amps  
TJ,TSTG  
-55 to +150  
°C  
NOTES:  
A. Mounted on 5.0mm2(.013mm thick) land areas.  
B. Measured on 8.3ms, single half sine-wave or equivalent square wave, duty cycle = 4 pulses per minute maximum.  
Page 1  
MDS0208021A  
SSURFFAACCEE MMOOUUNNTT ZZEENNEERR DDIIOODDEE  
COMCHIP  
wwww..ccoommcchhiipp..ccoomm..ttww  
ELECTRICAL CHARACTERISTICS  
(TA=25°C unless otherwise noted) (VF=1.2Volts Max, IF=200mA for all types.)  
Nominal  
Maximum Zener Impedance  
Zener  
Test  
current  
IZT  
Leakage Current  
Surge Current  
@TA=25°C  
(Note 5)  
(Note 4)  
Voltage VZ  
Device  
(Note 1.)  
@ IZT  
(Note 2, 3)  
(Volts)  
11  
ZZT @ IZT ZZK @ IZK  
IR  
IZK  
V
R  
(mA)  
23  
(Ohms)  
8
(Ohms)  
700  
(mA)  
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  
(uA)  
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
(Volts)  
8.4  
Ir - mA  
414  
380  
344  
304  
285  
250  
225  
205  
190  
170  
150  
135  
125  
115  
110  
95  
CZRA4741  
CZRA4742  
CZRA4743  
CZRA4744  
CZRA4745  
CZRA4746  
CZRA4747  
CZRA4748  
CZRA4749  
CZRA4750  
CZRA4751  
CZRA4752  
CZRA4753  
CZRA4754  
CZRA4755  
CZRA4756  
CZRA4757  
CZRA4758  
CZRA4759  
CZRA4760  
CZRA4761  
CZRA4762  
CZRA4763  
CZRA4764  
12  
21  
9
700  
9.1  
13  
19  
10  
700  
9.9  
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  
16  
15.5  
14  
16  
700  
18  
20  
750  
20  
12.5  
11.5  
10.5  
9.5  
8.5  
7.5  
7
22  
750  
22  
23  
750  
24  
25  
750  
27  
35  
750  
30  
40  
1000  
1000  
1000  
1000  
1500  
1500  
1500  
2000  
2000  
2000  
2000  
3000  
3000  
3000  
33  
45  
36  
50  
39  
6.5  
6
60  
43  
70  
47  
5.5  
5
80  
51  
95  
90  
56  
4.5  
4
110  
125  
150  
175  
200  
250  
350  
80  
62  
70  
68  
3.7  
3.3  
3
65  
75  
60  
82  
62.2  
69.2  
76  
55  
91  
2.8  
2.5  
50  
100  
45  
NOTE:  
1. Tolerance and Type Number Designation. The type numbers listed have a standard tolerance on the nominal zener  
voltage of ± 5%.  
2. Specials Available Include:  
A. Nominal zener voltages between the voltages shown and tighter voltage tolerances.  
B. Matched sets.  
3. Zener Voltage (VZ) Measurement. Guarantees the zener voltage when measured at 90 seconds while maintaining  
the lead temperature (TL) at 30°C ± 1°C, from the diode body.  
4. Zener Impedance (ZZ) Derivation. The zener impedance is derived from the 60 cycle ac voltage, which results when  
an ac current having an rms value equal to 10% of the dc zener current (IZT or IZK) is superimposed on IZT or IZK  
.
5. Surge Current (Ir) Non-Repetitive. The rating listed in the electrical characteristics table is maximum peak,  
non-repetitive, reverse surge current of 1/2 square wave or equivalent sine wave pulse of 1/120 second  
duration superimposed on the test current, IZT, per JEDEC registration; however, actual device capability  
is as described in Figure 5.  
Page 2  
MDS0208021A  
SSURFFAACCEE MMOOUUNNTT ZZEENNEERR DDIIOODDEE  
COOMMCCHHIIPP  
wwww..ccoommcchhiipp..ccoomm..ttww  
RATING AND CHARACTERISTICS CURVES  
CZRA4741 THRU CZRA4764  
1.25  
1.0  
L = LEAD LENTGH TO  
HEAT SINK  
0.75  
0.50  
0.25  
0
0
20 40 60 80 100 120 140 160 180 200  
TL, LEAD TEMPERATURE  
Fig. 1-POWER TEMPERATURE DERATING CURVE  
100  
70  
50  
30  
20  
+12  
+10  
10  
RANGE  
VZ @ IZT  
+8.0  
+6.0  
+4.0  
+2.0  
0
7.0  
5.0  
VZ @ IZT  
3.0  
2.0  
RANGE  
-2.0  
-4.0  
2
1.0  
10  
3
4
5
6
7
8
9
10 11 12  
20  
30  
50  
70  
100  
VZ, ZENER VOLTAGE (VOLTS)  
VZ, ZENER VOLTAGE (VOLTS)  
Fig. 2-TEMPERATURE COEFFICIENTS  
(-55°C TO +150°C TEMPERATURE RANGE; 90% OF THE UNITS ARE IN THE RANGES INDICATED.)  
175  
150  
NOTE:BELOW 3 VOLTS AND ABOVE 8  
125  
100  
CHANGES IN ZENER CURRENT DO  
AFFECT TEMPERATURE  
+6.0  
+4.0  
+2.0  
0
20mA  
75  
50  
0.01mA  
25  
0
1.0mA  
V
Z @ IZT  
-2.0  
TA = 2 5°C  
-4.0  
3
0
.1  
.2 .3 .4 .5 .6 .7 .8 .9 1.0  
4
5
6
7 8  
L, LEAD LENGTH TO HEAT SINK (INCKES)  
VZ, ZENER VOLTAGE (VOLTS)  
Fig.3-TYPICAL THERMAL RESISTANCE VERSUS LEAD  
LENGTH  
Fig. 4-EFFECT OF ZENER CURRENT  
Page3  
MDS0208021A  
SSURFFAACCEE MMOOUUNNTT ZZEENNEERR DDIIOODDEE  
CCOOMMCCHHIIPP  
wwwwww..ccoommcchhiipp..ccoomm..ttww  
RATING AND CHARACTERISTICS CURVES  
CZRA4741 THRU CZRA4764  
100  
70  
50  
11V-91V NON-REPETITIVE  
0.8V-10V NON-REPETITIVE  
5% DUTY CYCLE  
30  
20  
RECTANGULAR WAVEFORM  
5°C  
TJ = 2  
PRIOR TO INITIAL  
PULSE  
10  
10% DUTY CYCLE  
7.0  
5.0  
3.0  
2.0  
20% DUTY CYCLE  
1.0  
0.01 0.02  
0.05  
0.1  
0.2  
0.5  
1.0  
2.0  
5.0  
10  
20  
50  
100 200  
500  
PW, PULSE WIDTH  
This graph represents 90 percentile data point.  
For worst-case design characteristics, multiply surge power by 2/3  
Fig. 5-MAXIMUM SURGE POWER  
1
000  
700  
500  
1000  
500  
TJ = 25°C  
TJ = 25°C  
IZ(ms) = 0.1IZ(dc)  
f = 60Hz  
IZ(ms) = 0.1IZ(dc)  
f = 60Hz  
IZ = 1.0mA  
5.0mA  
200  
100  
50  
200  
100  
70  
47V  
50  
20mA  
27V  
20  
20  
10  
10  
7
5
5.0  
0.8V  
2
1
1.0  
2.0  
1.0  
2.0 3.0  
5.0 7.0 10  
20 30  
50 70 100  
0.1 0.2  
0.5 1.0 2.0  
5.0 10  
20  
50 100  
IZ, ZENER CURRENT (mA)  
IZ, ZENER CURRENT (mA)  
Fig. 6-EFFECT OF ZENER CURRENT ON ZENER  
IMPEDANCE  
Fig. 7-EFFECT OF ZENER VOLTAGE ON ZENER  
IMPEDANCE  
Page 4  
MDS0208021A  
厂商 型号 描述 页数 下载

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