ESDA25LY

ESD Protection by ESDA25LY

Doc ID 16914 Rev 1

5/10

4

ESD Protection by ESDA25LY

Electrostatic discharge (ESD) is a major cause of failure in electronic systems.

Transient Voltage Suppressors (TVS) are an ideal choice for ESD protection. They are

capable of clamping the incoming transient to a low enough level such that damage to the

protected semiconductor is prevented.

Surface mount TVS arrays offer the best choice for minimal lead inductance.

They serve as parallel protection elements, connected between the signal line to ground. As

the transient rises above the operating voltage of the device, the TVS array becomes a low

impedance path diverting the transient current to ground.

The ESDA25LY array is the ideal board level protection of ESD sensitive semiconductor

components.

The tiny SOT23 package allows design flexibility in the design of high density boards where

the space saving is at a premium. This enables to shorten the routing and contributes to

hardening againt ESD.

Figure 10.

ESD protection diagram

ESD

sensitive

device

GND

2 * ESDA25LY

I/O

I/O

I/O

I/O