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AC 220V power port lightning strikes 1-5KA standard protection solution Scheme circuit diagram
2024-04-11 16:18:21
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 requirements of 1 to 5KA protection for the 8/20uS waveform
Products used in the solution:
| Product Series | Technical Parameters | Features | Ordering Code |
| Surge Arrester | |||
| EC600X | Nominal DC sparkover voltage VsdcN: 540... 720V
Impulse breakdown voltage:
Measured value @100 V/us 99%<1200 V
Measured value @1 kV/us 99%<1300 V
Service life: Operate 10 times (8/20 us)5 KA Operation 10 times (50 Hz,1s)10 A Capacitance@1 MHz: <1 pF |
High current handling capacity Rapid response Low capacitance High insulation impedance RoHS certification |
B88069X0780S102 |
| EF470X | Nominal DC sparkover voltage VsdcN: 400... 588V
Impulse breakdown voltage:
Measured value @100 V/us 99%<700 V
Measured value @1 kV/us 99%<800 V
Service life: Operate 10 times (8/20 us)5 KA Operation 10 times (50 Hz,1s)5 A Capacitance@1 MHz : <1.5 pF |
B88069X5080**** | |
| Varistor | |||
| S14K385E2 | VRMS: 385 V;VDC:505 V lmax (8/20μs):6000 A Wmax (2 ms) : 180.0 J Pmax: 0.60 W | High surge current capacity High energy absorption capacity Wide operating voltage range No continuous current, long service life UL, CSA, VDE,CQCIEC certification | B72214P2381K101 |
| S14K420E2 | VRMS: 420 V;VDC:560 V lmax (8/20μs):6000 A Wmax (2 ms) : 190.0 J Pmax: 0.60 W | B72214P2421K101 | |
| S20K385E2 | VRMS: 385 V;VDC:505 V lmax (8/20μs):8000 A Wmax (2 ms) : 150.0 J Pmax: 1.00 W | B72220S0381K101 | |
| S20K420E2 | VRMS: 420 V;VDC:560 V lmax (8/20μs):8000 A Wmax (2 ms) : 175.0 J Pmax: 1.00 W | B72220S0421K101 | |
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