DocID024976 Rev 1

5/17

AN4326

External ESD protection implemented on an M24LR16E antenna

16

1

External ESD protection implemented on an

M24LR16E antenna

During the IEC61000-4-2 tests, electrostatic discharges are applied in air or by contact

using an ESD gun.

Note:

See AN3353 “IEC 61000-4-2 standard testing”.

The ESD is conducted by the antenna and dissipated by the AC0 and AC1 pins built-in ESD

protections. An external ESD protection placed between the potential ESD source (the

antenna) and the M24LRXXE-R can improve the M24LRXXE-R ESD robustness.

Figure 1. External ESD protection on M24LRXXE-R 13.56 MHz loop antenna