IEC 61000-4-5、GB/T 17626.5、EN61000-4-5

1,  The front-end fuse provides protection against circuit overload, short circuits and MOV failure;

2, Two-stage 0°, 90°, 180°, 270° full-phase varistors are used between L-N differential mode. The varistor residual voltage change rate is very small after multiple tests, and the performance is stable, which can meet the needs of 40 surge tests;

3, The common mode L/N line respectively uses a varistor and then connected in series with a ceramic gas discharge tube to PE to provide a surge discharge path;

4, The  power NTC connected in series on the N-line effectively suppresses inrush current during power-on;

5, To meet the insulation withstand voltage test of the input to the ground, need to adjust the voltage parameters of the GDT.

▲The solution for reference only, if you need a detailed design scheme or customization according to your protection level requirements, please feel free to contact us, we will provide professional technical support and solutions based on your specific needs.

IEC 61000-4-5、GB/T 17626.5、EN61000-4-5

1, The front-end fuse provides protection against circuit overload, short circuits;

2, The method of connecting the varistor in series with the discharge tube between the L-N differential mode effectively reduces leakage current in this parallel path and extends the varistor's service life;

3, The common mode L/N line respectively uses a varistor and then connected in series with a ceramic gas discharge tube to PE to provide a surge discharge path;

4, The power NTC connected in series on the N-line effectively suppresses inrush current during power-on;

5, To meet the insulation withstand voltage test of the input to the ground,  need to adjust the voltage parameters of the GDT2.

▲The solution for reference only, if you need a detailed design scheme or customization according to your protection level requirements, please feel free to contact us, we will provide professional technical support and solutions based on your specific needs.

IEC 61000-4-5、GB/T 17626.5、EN61000-4-5

1, The front-end fuse provides protection against circuit overload, short circuits;

2, The cost-effective solution using conventional parallel varistor between L-N differential mode;

3, By connecting a low-voltage gas discharge tube in parallel to the coil of the common-mode inductor and in conjuction with the Y capacitor of the EMI filter circuit, enable product meet the common-mode surge test while effectively suppressing EMI interference;

4, The power NTC connected in series on the N-line effectively suppresses inrush current during power-on.

▲The solution for reference only, if you need a detailed design scheme or customization according to your protection level requirements, please feel free to contact us, we will provide professional technical support and solutions based on your specific needs.

IEC 61000-4-5、GB/T 17626.5、EN61000-4-5

1, The thermal fuse in the 3-pin TMOV can be directly connected in series at the input to replace the fuse, saving PCB space;

2, A TMOV (thermal-protected MOV) between L-N differential modes effectively prevents safety incidents caused by varistor failure in the circuit, improving product reliability and safety;

3, The common mode L/N line respectively uses a varistor and then connected in series with a ceramic gas discharge tube to PE to provide a surge discharge path;

4, The power NTC connected in series on the N-line effectively suppresses inrush current during power-on;

5, To meet the insulation withstand voltage test of the input to the ground,  need to adjust the voltage parameters of the GDT.

▲The solution for reference only, if you need a detailed design scheme or customization according to your protection level requirements, please feel free to contact us, we will provide professional technical support and solutions based on your specific needs.

IEC 61000-4-5、GB/T 17626.5、EN61000-4-5

1, The front-end fuse provides protection against circuit overload, short circuits;

2, The method of connecting the varistor in series with the discharge tube between the L-N differential mode effectively reduces leakage current in this parallel path and extends the varistor's service life;

3, The power NTC connected in series on the N-line effectively suppresses inrush current during power-on.

▲The solution for reference only, if you need a detailed design scheme or customization according to your protection level requirements, please feel free to contact us, we will provide professional technical support and solutions based on your specific needs.