UESD55B Datasheet | Union Semiconductor

Description The UESD54B/55B/56B/64B of TVS diode array is designed to protect sensitive electronics from damage or latch-up due to ESD for use in applications where board space is at a premium. It is unidirectional device and may be used on lines where the signal polarities are above ground. The UESD54B/55B/64B will protect up to four lines and the UESD56B will protect up to five lines. TVS diodes are solid-state devices feature large cross-sectional area junctions for conducting high transient currents, specifically for transient suppression. It offers desirable characteristics for board level protection including fast response time, low operating, low clamping voltage, and no device degradation. The UESD54B/55B/56B/64B may be used to meet the immunity requirements of IEC 61000-4-2, level 4. The small package makes them ideal for use in portable electronics such as cell phones, PDA’s, notebook puters and digital cameras. Applications z Cellular Handsets & Accessories z Cordless Phones z Personal Digital Assistants (PDA’s) z Notebooks & Handhelds z Portable Instrumentation z Digital Cameras z Peripherals z MP3 Players Features z Transient Protection for Data & Power Lines to IEC 61000-4-2 (ESD) ±15k V (Air), ±8k V (Contact) z Working Voltages: 5V z Low Leakage Current z Low Clamping Voltage z Solid-State Silicon Avalanche Technology Ordering Information Part Number UESD54B UESD55B UESD56B UESD64B Working Voltage 5.0V 5.0V 5.0V 5.0V Packaging Type Channel SC70-5/SC88A/SOT353 SC89-6/SOT563/SOT666 4 SC89-6/SOT563/SOT666 5 SC89-5/SOT553/SOT665 4 Marking Code UQ5 UF5 UB5 UR6 Shipping Qty 3000pcs/7Inch Tape & Reel ___________________________________________________________________________ http://.union-ic. Rev.03 Aug.2016 1/9 Pin Configurations UESD54B/55B/56B/64B UESD54B UESD56B UESD64B SC70-5/SC88A/SOT353 SC89-6/SOT563/SOT666 SC89-6/SOT563/SOT666 SC89-5/SOT553/SOT665 Top View M: Month Code M: Month Code M: Month Code M: Month...