1 pF capacitance — why it matters for high-speed lines
Its standout parameter is the 1 pF capacitance at 1 MHz, which keeps signal integrity intact on high-speed data interfaces such as USB 2.0, HDMI, or Gigabit Ethernet where added capacitive loading would otherwise degrade eye diagrams and limit bit-error rates. The device clamps transients to 8.5 V (typ) while handling 6.3 A peak pulse current (8/20 µs waveform) and 50 W peak pulse power — enough for typical system-level ESD events per IEC 61000-4-2 without burdening the line with excessive capacitance.
Bidirectional single-channel topology
With one bidirectional channel and a 3.6 V (max) reverse standoff voltage, the TPD1E1B04DPYT protects a single differential pair or signal line where the polarity is not fixed — the same device works for positive or negative transients. The 6.4 V (typ) breakdown voltage ensures the protection triggers before the downstream IC's absolute maximum rating is reached.
The base product number is TPD1E1B04, so the suffix 'YT' denotes the specific reel and package configuration (2-X1SON 1x0.60 mm).
Housed in a 2-X1SON (1x0.60 mm) supplier package — essentially a 0402 footprint — the device is surface-mount and suited for automated pick-and-place assembly. The 0402 (1006 Metric) case code is standard for space-constrained layouts near connectors or IC pins where ESD protection must be placed close to the protected node.