QUANTEK

CDSOD323‑T24LC‑Q TVS Diode Delivers Automotive‑Grade ESD Protection in Compact SOD‑323 Footprints

Bourns today announced the Model CDSOD323-T24LC-Q an automotive‑grade, bidirectional transient voltage suppressor (TVS) diode designed to protect signal lines from electrostatic discharge (ESD) and surge events in space‑constrained electronic designs. The device combines 30 kV ESD protection, 24 V working peak voltage, and typical capacitance of 1.0 pF in a compact SOD‑323 surface‑mount package to support high‑speed interfaces while meeting automotive reliability requirements.

As automotive and portable electronic systems continue to increase signal density while shrinking available board space, engineers face tighter layout constraints alongside higher ESD and surge compliance demands. Protecting high‑speed data lines without degrading signal integrity requires low‑capacitance protection devices that can withstand system‑level transient events. Automotive qualification further adds validation burden for components deployed in harsh electrical environments. The CDSOD323‑T24LC‑Q addresses these challenges by pairing compact packaging with automotive‑grade qualification and defined IEC transient performance.

“Automotive and high‑speed interface designs require transient protection that preserves signal integrity while meeting qualification requirements,” - Rollin Roos, Product Line Manager – Semiconductors, Bourns. “The CDSOD323‑T24LC‑Q provides bidirectional ESD and surge protection with 1.0 pF typical capacitance and AEC‑Q101 compliance, allowing engineers to protect individual signal lines in dense layouts without increasing board area.”

Design Features and Key Capabilities

  • ESD protection 30 kV max.
  • Low capacitance - 1.0 pF
  • Protects 1 line
  • Bidirectional configuration
  • Environmental compliance - RoHS compliant* and lead free per Bourns definitions
  • AEC-Q101 compliant

Electrical Specifications (TA = 25 °C)

Parameter Symbol Value Unit
Working Peak Voltage VWM 24.0 V
Minimum breakdown voltage @ 1 mA VBR 26.7 V
Peak pulse power (8/20 µs) PPP 350 W
Typical capacitance @ 0 V, 1 MHz CJ 1.0 pF
Operating Temperature Range TJ -55 to +150 °C

Applications

  • HDMI 1.4 interfaces
  • Digital Visual Interface (DVI)
  • USB 3.0 and USB OTG ports
  • Memory and SIM card protection