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DC 48V power port lightning strike 0.5-1 kA SMD protection solution Scheme circuit diagram

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DC 48V power port lightning strike 0.5-1 kA SMD protection solution Scheme circuit diagram

2024-08-06 09:59:19
dlnt9
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

Technical Parameters

Features

Ordering Code

Surge Arrester

S30-A90X

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

1.High current handling capacity
2.Rapid response  
3.Low capacitance
4.High insulation impedance
RoHS certification

B88069X9231T203

Varistor

CT1210K50E2G

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

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;

B72530T6500K62


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