CDSOT23-SM712: Overview, Features, and Applications


The CDSOT23-SM712 is a TVS (Transient Voltage Suppressor) diode designed for ESD (Electrostatic Discharge) and voltage transients protection. Manufactured by Bourns, this component offers protection for sensitive electronics against voltage spikes and transients. Here's an overview of its features and typical applications:


  • Type: TVS Diode (Transient Voltage Suppressor)
  • Package: SOT-23
  • Manufacturer: Bourns
  • Function: Protects electronic circuits from ESD events and voltage transients.



  1. ESD Protection: The diode offers protection against Electrostatic Discharge (ESD) events, safeguarding sensitive electronics from ESD damage.
  2. Transient Voltage Suppression: Designed to clamp transient overvoltage events, it provides protection against voltage surges.
  3. Low Capacitance: The diode introduces minimal capacitance to the protected circuit, preserving signal integrity in high-speed data lines.
  4. Low Clamping Voltage: When a transient event occurs, the diode clamps the voltage to a safe level, preventing damage to downstream components.
  5. High Surge Current Capability: Able to handle high surge currents, making it durable against sudden voltage spikes.
  6. Compact Size: The SOT-23 package offers a small footprint suitable for space-constrained PCB designs.


  1. Data Communication Lines: Provides protection for data and communication lines such as USB, Ethernet, HDMI, and other high-speed interfaces against ESD and surge events.
  2. Mobile Devices: Used to safeguard sensitive electronics in smartphones, tablets, and other portable devices from ESD and transient damage.
  3. Industrial Control Systems: Employed in industrial equipment to protect sensitive components from voltage surges and transients, ensuring system reliability.
  4. Consumer Electronics: Integrated into various consumer electronics to protect against voltage spikes and ESD that may occur during normal usage or unexpected events.
  5. Automotive Electronics: Used in automotive applications to shield sensitive electronics from ESD and transient voltage events, ensuring reliable operation in harsh electrical environments.
  6. Medical Devices: Provides protection for sensitive electronics in medical devices where reliability and safety are critical.
  7. IoT (Internet of Things) Devices: Included in various IoT devices to protect against voltage transients and ESD, ensuring longevity and reliability in diverse operating environments.

The CDSOT23-SM712 TVS diode serves a critical role in protecting sensitive electronic components and circuits from damaging transient voltage events such as ESD and surges, making it an essential component in a wide array of electronic devices and systems.