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1N4749A Folha de dados(PDF) 5 Page - Yea Shin Technology Co., Ltd

Nome de Peças 1N4749A
Descrição Electrónicos  1 Watt DO-41G Hermetically Sealed Glass Zener Voltage Regulators
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Fabricante Electrônico  YEASHIN [Yea Shin Technology Co., Ltd]
Página de início  http://www.yeashin.com
Logo YEASHIN - Yea Shin Technology Co., Ltd

1N4749A Folha de dados(HTML) 5 Page - Yea Shin Technology Co., Ltd

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REV.03 20121011
1N4728A~1N4764A
DEVICE CHARACTERISTICS
Figure 2. Temperature Coefficients
(-55
°C to +150 °C temperature range; 90% of the units are in the ranges indicated.)
a. Range for Units to 12 Volts
b. Range for Units to 12 to 100 Volts
+12
+10
+8
+6
+4
+2
0
-2
-4
VZ , ZENER VOLTAGE (VOLTS)
100
70
50
30
20
10
7
5
3
2
1
10
20
30
50
70
100
VZ , ZENER VOLTAGE (VOLTS)
VZ @I ZT
RANGE
RANGE
V Z @I ZT
Figure 3. Typical Thermal Resistance
versus Lead Length
Figure 4. Effect of Zener Current
175
150
125
100
75
50
25
0
0
0.1
0.2
0.3
0.4
0.5
0.60.7
0.8
0.9
1
L, LEAD LENGTH TO HEAT SINK (INCHES)
+6
+4
+2
0
-2
-4
VZ , ZENER VOLTAGE (VOLTS)
V Z @ I Z
TA
20 mA
0.01 mA
1 mA
NOTE: BELOW 3 VOLTS AND ABOVE 8 VOLTS
NOTE: CHANGES IN ZENER CURRENT DO NOT
NOTE: EFFECT TEMPERATURE COEFFICIENTS
Figure 5. Maximum Surge Power
100
70
50
30
20
10
7
5
3
2
1
0.01
0.02
0.05
0.1
0.2
0.5
1
2
5
10
20
50
100
200
500
1000
PW, PULSE WIDTH (ms)
This graph represents 90 percentile data points.
For worst case design characteristics, multiply surge power by 2/3.
11 V - 100 V NONREPETITIVE
3.3 V - 10 V NONREPETITIVE
5% DUTY CYCLE
10% DUTY CYCLE
20% DUTY CYCLE
RECT ANGULAR
WAVEFORM
TJ = 25°C PRIOR TO
INITIAL PULSE
2
3
4
5
6
78
9
10
11
12
3
4
5
6
78
= 25
°C


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