CMXESD70-4

CMXESD70-4

CMXESD70-4

Product catalog summary
Product Overview: The CMXESD70-4 is a 4-line silicon diode array designed by Central Semiconductor, packaged in a SOT-26 surface mount case. It provides low capacitance and is intended to protect high-speed data or transmission lines from over-voltage transients and ESD damage.
Specifications: The device offers ESD protection up to 8kV for contact and 15kV for air, compliant with IEC61000-4-2 Level 4 standards. It features low capacitance, protecting four I/O lines and the supply voltage rail, while saving board space and maintaining low idle power consumption.
Electrical Characteristics: At 25°C, the maximum reverse voltage (VR) is 70V, and the maximum ESD contact voltage (VESD) is 8.0kV. The device operates within a temperature range of -55°C to +150°C. The forward voltage (VF) at a forward current (IF) is typically 0.61V, with a maximum of 0.74V. The reverse leakage current (IR) at VR is a maximum of 1.0μA, and the off-state junction capacitance is 1.0pF for I/O to GND and 0.9pF for I/O to I/O.
Applications: The CMXESD70-4 is suitable for USB 2.0 power and data line protection, HDMI interfaces, digital video interfaces (DVI), and Ethernet ports.
Packaging Information: The device is available in a 7” reel size, with a maximum of 3,000 parts per reel. Devices are taped according to the Electronic Industries Association Standard EIA-481-1-A.
Theory of Operation: The diode array operates by directing surge currents to the supply when transient voltage exceeds the sum of the diode forward voltage drop and the supply voltage, thus protecting the high-speed data line.
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Catalog excerpts

CMXESD70-4-1

Product Brief CMXESD70-4 Low Capacitance, ESD Protection 4-Line Diode Array in SOT-26 package Typical Electrical Characteristics Central Semiconductor’s CMXESD70-4 is a 4-line silicon diode array packaged in the SOT-26 surface mount case. This device, with its low capacitance, is designed to protect four high speed data or transmission lines from over-voltage transients and ESD damage. Features: • ESD protection: 8kV Contact; 15kV Air (IEC61000-4-2: Level 4) • Low capacitance • Protects four I/O lines • Protects supply voltage rail USB 2.0 Power and Data Line Protection HDMI Interface Digital Video Interface (DVI) Ethernet Ports Benefits: • Integrated solution saves board space • Low idle power consumption • Design flexibility Literature New SMD SELECTION GUIDE To order samples of this device visit: www.centralsemi.com/info/CMXESD70-4 Weblink Use QR reader for direct link to product web page, or use: www.centralsemi.com/info/CMXESD70-4 Order your selection guide today. Visit: web.centralsemi.com/search/sample.php Maximum Ratings (TA = 25˚C) VR VESD (Contact) Electrical Characteristics Per Diode: (TA = 25˚C) Reverse Leakage Current VR Off State Junction Capacitance I/O to GND (VR=0, f=1.0MHz) CJ Off State Junction Capacitance I/O to I/O (VR=0, f=1.0MHz) CJ

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CMXESD70-4-2

4 Line Diode Array in SOT-26 package accordance with Electronic Industries Association Standard Sample devices available upon request. To order samples of this device visit: www.centralsemi.com/info/CMXESD70-4 conductor Corp. Innovative Discrete For further information contact: Sales at Central Semiconductor Corp. www.centra lsemi.com 145 Adams Avenue • Hauppauge • New York • 11788 • USA • Tel:(631) 435-1110 • Fax:(631) 435-1824

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