RClamp1644T Low Capacitance RClamp® ESD Protection for uUSB Interfaces
● Description:
■ 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).
■ The RClamp1644T is specifically designed to protect portable devices that utilize a uUSB port. The unique design of this device features low capacitance TVS diodes for protection of the USB data (DP, DM) and USB ID pins operating up to 5 volts. Loading capacitance on these lines is <0.6pF for maximum signal integrity. An integrated 12 volt TVS diode is used for protection of the USB voltage bus. This ensures the device will remain in a high-impedance state during normal USB operation or when the battery is being charged. Leakage current of the VBus protection is <50nA when operating at 12 volts.
■ The RClamp1644T is in a 6-pin SLP1508N5T package. It measures 1.5 x 0.8 x 0.40mm. The leads are spaced at a pitch of 0.35mm and are finished with lead-free NiPdAu. They may be used to meet the ESD immunity requirements of IEC 61000-4-2.
● 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
● Mechanical Characteristics:
■ SLP1508N5T 5L package
■ Pb-Free, Halogen Free, RoHS/WEEE Compliant
■ Nominal Dimensions: 1.5 x 0.8 x 0.40 mm
■ Lead Finish: NiPdA
■ Molding compound flammability rating: UL 94V-0
■ Marking : Marking code + date code
■ Packaging : Tape and Reel
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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4/12/2012 |
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Revision 4/12/2012 |
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434 KB |
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