Introduction to Varistors for In-Vehicle Ethernet

Introducing the ASPGuard^® series, which features a small size, low capacitance, and narrow capacitance tolerance. It complies with the Ethernet OPEN Alliance standards for automotive applications.

ASPGuard^® is a registered trademark of KYOCERA AVX Components Corporation.

Overview

KYOCERA AVX offers varistors, which are components used for electrostatic discharge (ESD) protection and surge protection.
KYOCERA AVX offers a wide range of ASPGuard^® series products that comply with the Automotive Ethernet OPEN Alliance standards. These products are small, have low capacitance, and have narrow capacitance tolerance.

These products are suitable for ESD protection in high-speed communication circuits, as well as for automotive applications and consumer and industrial equipment.

ASPGuard^® Series Product Details

Features

Low capacitance and narrow capacitance tolerance, optimized for in-vehicle Ethernet.
Rated voltage and varistor voltage are compliant with OPEN ALLIANCE requirements.
Compact 1.0 mm x 0.5 mm Size
The varistor voltage and capacitance have shown consistent stability following the application of ESD.
High resistance to repeated ESD applications

In-Vehicle Ethernet OPEN Alliance Compliant Products

	For 1000BASE-T1	For 100BASE-T1
Part Number	VCAS04AP701R5YATWA	VCAS04AP704R7LATWA
Rated Voltage	70V (DC)	70V (DC)
Varistor Voltage	150 to 210V	90 to 110V
Clamp Voltage	350V	190V
Capacitance	1.55pF	4.7pF
Capacitance Tolerance	±0.13pF	±1pF
Size	1.0mm x 0.5mm	1.0mm x 0.5mm