QS20X(2014) Datasheet PDF - TT Electronics.

TaNCap® AC Line Termination Network Resistors

   Today’s high speed digital circuits demand top performance while maintaining low power dissipation. IRC’s TaNCap® AC termination networks are designed to meet the needs of the digital circuit designer by blocking DC current flow into the terminating resistor during the steady-state portion of the digital signal while passing current into the tantalum nitride terminating resistor during the presence of signal edges and transients.
   The SOIC, QSOP, and TSSOP packages offer a high level of integration in today’s most popular surface mount configurations. One AC Termination network replaces up to 36 discrete components.
   The TaNCap® series of resistor-capacitor networks are manufactured using IRC’s military and space proven tantalum nitride thin film technology. For high reliability combined with superior performance, use IRC TaNCap® AC termination networks for your high speed, digital circuit applications.

AC Terminator Series

• Improves signal quality
• Reduces power dissipation
• Highly integrated - replaces up to 36 discretes
• RoHS compliant and Sn/Pb terminations available
• Proven TaNCap® thin film technology in QSOP, SOIC, and TSSOP packages