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Tuesday, June 28, 2016
VOLUME -23 NUMBER 7
Publication Date: 07/1/2008
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Electronic Mfg. Services
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Special Feature: Assembly and Packaging
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July 2008 Issue
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Littelfuse Intros Silicon Overvoltage Protection Array
Silicon overvoltage protection array.
Des Plaines, IL — Littelfuse, Inc. has introduced a new type of overvoltage suppression device for data lines and interface circuits in Ethernet, T3/E3, DS3, ADSL2+, and VDSL2+ systems. The SP03-6 combines a transient voltage suppression (TVS) device with a diode rectifier bridge to provide both longitudinal (common mode) and differential protection in one package, suppressing both positive and negative voltage surges.
The company's design innovation results in low insertion loss and a log-linear capacitive loading characteristic with respect to the signal voltage across the device. The result is reduced
intermodulation (IM) distortion compared to typical solid-state protection solutions for high-speed data lines.
The device has a reverse standoff voltage of 6V, and clamps surges to 15V under 50A surge current conditions (20V at 100A surge). Its peak surge rating is 150A or 2800W (8/20µs waveform). A low clamping voltage for both common mode and differential surge conditions means there is less stress on the protected equipment, and more robust equipment equates to longer life.
Input capacitance at 1MHz is typically 16pF (25pF max.), resulting in low attenuation and better line balance for high-speed data. The SP03-6 meets the requirements of IEC 61000-4-5: (Lightning) 150A (8/20fs waveform); Bellcore GR1089: (Intra-Building) 100A (2/10fs waveform); ITU K.20: Ipp = 40A (5/310fs waveform); IEC 61000-4-2: (ESD) 15kV (air), 8kV (contact); RoHS-compliance.
Contact: Littelfuse, 800 E. Northwest Highway, Des Plaines, IL 60016
800-999-9445 or 847-824-1188 fax: 847-391-0894 Web:
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