Esd Protection With Emi Filter - Siemens A55 Repair Documentation

7.5.2 ESD Protection with EMI filter

The Z211 is a 5-channel filter with over-voltage and ESD Protection array which is
designed to provide filtering of undesired RF signals in the 800-4000MHz frequency
band Additionally the Z211 contains diodes to protect downstream components from
Electrostatic Discharge (ESD) voltages up to 8 kV.
Pin configuration of the Z211
Z211 Circuit Configuration
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