DC 48V power port lightning strike 0.5-1 kA SMD protection solution Scheme circuit diagram
The protection scheme provided by TDK EPCOS Electronics as shown above does not constitute a complete circuit design. Customers also need to verify the performance of actual complete circuits in their specific applications.
Scheme advantage:
1.Includes differential mode and common mode protection.
2.It meets the lightning strike 8/20us waveform 0.5-1KA protection requirements, the SMD solution can save space.
Products used in the solution:
Product Series
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Technical Parameters
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Features
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Ordering Code
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Surge Arrester
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S30-A90X
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Nominal DC sparkover voltage VsdcN: 63... 117V Impulse breakdown voltage: Measured value @100 V/us 99%<500 V Measured value @1 kV/us 99%<600 V Service life: Operate 10 times (8/20 us)2 KA Operation 10 times (50 Hz,1s)2 A Capacitance@1 MHz: <0.8 pF
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1.High current handling capacity 2.Rapid response 3.Low capacitance 4.High insulation impedance RoHS certification
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B88069X9231T203
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Varistor
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CT1210K50E2G
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VRMS,max: 50 V;VDC,max:65 V
VV:73.8...90.2V;Vclamp,max:135V lsurge,max (8/20μs):1x 1200 A;10X500A Pdiss,max: 10mW
Ctyp: 1200 pF
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1.Low leakage current;
2.response time < 0.5s;
3.wide operating temperature range;
4.ESD protection in line with IEC61000-4-2 standard;
5.Compatible with the RoHS;
6.100% lead-free;
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B72530T6500K62
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