USB50805C/TR7 Microchip

USB50803C(-A) USB50824C(-A) Bidirectional Low Capacitance Available TVSarray DESCRIPTION This USB50803C(-A) USB50824C(-A) family of Transient Voltage Suppressor (TVS) arrays comes in an SO-8 package and can provide protection to 2 bidirectional data or interface lines. It is designed for use in applications where very low capacitance protection is required at the board level from voltage transients caused by electrostatic discharge (ESD) as defined in IEC 61000-4-2, electrical fast transients (EFT) per IEC 61000-4-4 and secondary effects of lightning. Using the schematic on the last page, pins 1 & 2 are tied together for the first protected line, and pins 7 & 8 are tied together to ground. The same would occur for a second protected line where pins 3 & 4 tied together and pins 5 & 6 tied together to the ground. These connections may SO-8 Package be switched in polarity since the electrical features are the same in each anti-parallel (opposite facing) leg when the pins are tied together in this manner for bidirectional protection. The device with an -A suffix is opposite in polarity for each pin-to-pin leg (see schematics). This provides no Also available: functional difference for bidirectional TVS protection with the noted pins tied together as described Unidirectional version above. But the difference is significant if each leg is being used separately for unidirectional USB50803 USB50824 applications. These TVS arrays have a peak power rating of 500 watts for an 8/20 sec pulse. This array is suitable for protection of sensitive circuitry such as TTL, CMOS DRAMs, SRAMs, HCMOS, HSIC microprocessors, Universal Serial Bus (USB) and I/O transceivers. Important: For the latest information, visit our website USB50803C(-A) USB50824C(-A) MECHANICAL and PACKAGING CASE: Molded SO-8 surface mount. TERMINALS: Tin-lead or RoHS compliant annealed matte-tin plating. MARKING: Logo, device marking code (see electrical characteristics table), date code. POLARITY: Pin 1 marked by dot on top of package. TAPE & REEL option: Per EIA standard 481. Consult factory for quantities. Carrier tubes with a quantity of 95 pieces are standard. WEIGHT: Approximately 0.066 grams. Package Dimensions on last page. See PART NOMENCLATURE USB 5 08 03 C -A e3 USB Rated Product RoHS Compliance e3 = RoHS Compliant P Rating (x 100 W) Blank = non-RoHS Compliant PP 8 Pin Package Opposite polarity of Non-A suffix version in each leg Rated Standoff Voltage (V ) WM Bidirectional Designator (See Electrical Characteristics table) SYMBOLS & DEFINITIONS Symbol Definition Stand Off Voltage: Maximum dc voltage that can be applied over the operating temperature range. VWM Vwm must be selected to be equal or be greater than the operating voltage of the line to be protected. V Minimum Breakdown Voltage: The minimum voltage the device will exhibit at a specified current (BR) Clamping Voltage: Maximum clamping voltage across the TVS device when subjected to a given current at a pulse V C time of 20 s. I Standby Current: Leakage current at V D WM. C Capacitance: Capacitance of the TVS as defined 0 volts at a frequency of 1 MHz and stated in picofarads. RF01092-1, Rev. A (1/11/13) 2013 Microsemi Corporation Page 2 of 6