6-channel rail-to-rail clamp for 5V signal lines
The Texas Instruments TPD6E001RSFR is a steering (rail-to-rail) TVS diode array that protects six unidirectional data or I/O lines against ESD and other transient overvoltage events. It clamps incoming spikes to the positive and negative supply rails rather than to ground, which keeps the protected signal within the supply envelope and avoids ground-bounce coupling into adjacent circuits. The 6-channel density in a 12-WQFN package (4x4 mm) saves board area versus discrete TVS diodes per line.
Parametric fit: channel count, standoff, and package
Six unidirectional channels mean one IC protects a full 6-bit bus or six discrete signal lines. The 12-WQFN with exposed pad (4x4 mm) requires a thermal-land pattern on the PCB for proper solder-joint reliability and heat dissipation. Power line protection is listed as supported — the rail-to-rail architecture inherently protects the supply pins as well as signal lines, though the primary application is signal-line ESD clamping.
The base product number is TPD6E001; the RSFR suffix indicates the 12-WQFN package and tape-and-reel / cut-tape shipping options.