Littelfuse is a global leader in circuit protection, has launched SP3051-04HTG transient voltage suppression (TVS) diode array (SPA? Diode), this product is the company's TVS diode arrays in lightning surge protection devices The newest member. The product combines a low capacitance rail-to-rail diode with an additional Zener diode to protect each input/output pin from the surge caused by ESD and lightning strikes. This powerful device safely absorbs 20A (tP = 8/20μs) with no degradation in performance and provides an ESD protection of ±30kV minimum. In addition, the low load capacitance makes it ideal for protecting high-speed signal pins such as 1Gb Ethernet data lines.
The SP3051-04HTG offers several advantages over similar devices from other manufacturers. For example, because the dynamic resistance (0.3?) is lower than competing devices, the SP3051-04HTG provides extremely low clamping voltage (only 10.5V, up to 16.6V for other devices). The product's contact discharge ESD contact voltage rating (up to 30kV, similar devices are only 8kV to 20kV) is also much higher than similar devices from other vendors.
Typical applications for the SP3051-04HTG transient suppression diode array include protection for 10/100/1000 Ethernet (PHY side), T1/E1/T3/E3 (PHY side), USB 2.0 and Firewire ports. These ports are commonly found on a variety of devices such as switches, gateways, pico/femtocells, LCD/plasma TVs, set-top boxes, notebook/ultrabooks, diagnostic/medical devices, and monitor/flat-panel displays.
"As IC process sizes continue to shrink, Ethernet transceivers and other high-speed buses are becoming more susceptible to lightning-induced voltage transients or ESD damage, so a powerful low-clamp voltage like the SP3051-04HTG is required. Low-capacitance parts provide protection," said Chad Marak, director of the series of transient suppression diode array products. "The increasing popularity of Ethernet and IP communications has made this product an ideal circuit protection solution for more and more market segments such as telecommunications/datacom, computing, industrial, consumer products, and medical.
The SP3051-04HTG transient suppression diode array has the following main features and benefits:
Features and features
? Very low dynamic resistance (RDYN), only 0.3Ω
• Very low capacitance between each input/output and ground (0 volts DC bias is 3.8 pF, VCC = 1.7 pF at 5 volts, VI/O = 2.5 volts)
Powerful surge protection: lightning strike, IEC61000-4-5, 20A (8/20μs); peak pulse power, 400W (8/20μs)
Enhanced ESD protection: IEC61000-4-2, ±30kV (contact), ±30kV (air)
Features
• Clamping voltage can be reduced by up to 35% compared to competing products; better protection of modern integrated circuits from transient voltages defined by industries such as IEC61000-4-5.
Capacitors can be up to 15% lower than similar solutions on the market; signal integrity is preserved by minimizing data loss with 1Gb Ethernet long-range installations (eg 100 meters).
High power and surge handling capabilities provide higher electrical threat and cable discharge (CDE) design margins than industry standards
• Enhanced ESD protection performance far exceeds the highest level of IEC61000-4-2 (±8kV), ensuring maximum reliability of field termination products
Availability
The SP3051-04HTG transient suppression diode array has a minimum order size of 3,000 and is available in tape and reel packaging. Large orders can now be requested from authorized Littelfuse distributors around the world.
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