®
1SMA4728A – SZ1330A
WON-TOP ELECTRONICS
1.0
0.8
0.6
500
450
400
350
300
250
200
150
100
50
Mounted on FR-4 PCB with
8.0 x 8.0 x 2.0mm Copper Pads
VZ @ IZT
0.4
0.2
0
0
0
25
50
75
100
125
150
0
50
100
VZ, ZENER VOLTAGE (V)
Fig. 2 Typical Temperature Coefficients
150
200
250
300
TL, LEAD TEMPERATURE (°C)
Fig. 1 Power Derating Curve
10000
1000
100
10
1000
TJ = 25°C
Z(RMS) = 0.1 IZ(DC)
IZT = 5.0mA
I
TJ = 25°C
IZT = 10mA
IZT = 20mA
VZ = 200V
VZ = 180V
VZ = 150V
100
10
1
VZ = 91V
VZ = 56V
IZT = 100mA
VZ = 30V
VZ = 6.2V
100
1
0.1
0.5
1
10
500
1
10
100
1000
IZT, ZENER TEST CURRENT (mA)
Fig. 3 Dynamic Resistance vs. Zener Current
VZ, ZENER VOLTAGE (V)
Fig. 3 Dynamic Resistance vs. Zener Voltage
10
1000
100
10
Zero Bias
50% VZ Bias
1
0.1
TJ = 25°C
Pulse Width = 300µs
1% Duty Cycle
TJ = 25°C
f = 1MHz
0.01
0.6
0.8
1.0
1.2
1.4
1.6
1
10
100
VF, INSTANTANEOUS FORWARD VOLTAGE (V)
Fig. 5 Typical Forward Characteristics
VZ, NOMINAL ZENER VOLTAGE (V)
Fig. 6 Junction Capacitance vs. Nominal Zener Voltage
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© Won-Top Electronics Co., Ltd.
Revision: September, 2012