Semtech RClamp1644T
Low Capacitance RClamp® ESD Protection for uUSB Interfaces

RailClamp® is a low capacitance TVS array designed to protect high speed data interfaces. This series has
been specifically designed to protect sensitive components which are connected to data and transmission
lines from overvoltage caused by ESD (electrostatic discharge), CDE (Cable Discharge Events), and EFT
(electrical fast transients).
Overview
Features
- ESD protection for high-speed data lines to
- IEC 61000-4-2 (ESD) ±25kV (air), ±20kV (contact)
- IEC 61000-4-5 (Lightning) 10A (8/20μs)
- IEC 61000-4-4 (EFT) 40A (5/50ns)
- Protects USB DP, DM, and ID Pin operating to 5V
- Protects USB VBus operating up to 12V
- Low capacitance (<0.60pF) on DP, DM, and ID Pins
- Low clamping voltage
- Extremely low dynamic resistance: 0.33 Ohms (Typ) on DP, DM, and ID Pins
- Innovative flow-through design allows easy pcb layout
- Solid-state silicon-avalanche technology
Applications
- USB 2.0
- USB OTG
- Micro USB
Packaging
- SLP1508N5T 5L
Order Codes
- RClamp1644T.TNT - Pb-Free, Halogen Free, RoHS/WEEE Compliant