Littelfuse has recently launched the SRDA05 family of SPAs (Single-Point Arresters) transient suppression diode arrays. These devices are specifically engineered to safeguard telecom data lines from electrostatic discharge (ESD) and high surge events. The SRDA05 series delivers up to 20% more power and surge handling capability compared to similar products in the market, making it a superior choice for demanding applications.
By integrating a low-capacitance steering diode with an additional Zener diode, the SRDA05 offers a more robust design margin against electrical threats while maintaining excellent ESD protection without compromising system performance. This combination ensures reliable operation even under extreme conditions, which is crucial for modern communication infrastructure.
The SRDA05 series is ideal for third-level (IC-side) protection in telecommunications interfaces such as T1/E1/T3/E3 lines, xDSL, RS-232/RS-485, 10/100/1000 Ethernet, and video interfaces. It's also well-suited for industrial and medical equipment where reliability and safety are paramount.
Chad Marak, Director of Littelfuse’s Transient Suppression Diode Array Family, stated, “The SRDA05 family provides the highest level of surge protection, power dissipation, and ESD performance available today. This allows engineers to design with greater flexibility and larger margins based on industry standards and real-world electrical threats.†He added, “Compared to leading competitors, the SRDA05 series outperforms with higher surge ratings (30A vs. 25A), rated power (600W vs. 500W), and ESD ratings (30kV vs. 8kV).â€
Key features of the SRDA05 family include:
- **Powerful Surge Protection**: IEC61000-4-5 compliant, 30A (8/20μs), with peak pulse power of 600W (8/20μs)
- **Low Dynamic Resistance (RDYN)**: Only 0.8Ω
- **Low Capacitance**: 8pF (typ) from I/O to ground
- **Enhanced ESD Protection**: IEC61000-4-2 compliant, ±30kV (contact) and ±30kV (air)
Benefits include:
- **20% Higher Power and Surge Handling**: Offers improved design margins over industry standards
- **Best Clamping Voltage**: Protects sensitive chipsets and enhances system reliability
- **20% Lower Capacitance**: Helps preserve signal integrity and reduce data loss during transmission
- **Superior ESD Performance**: Far exceeds the IEC61000-4-2 standard’s maximum rating of ±8kV
The SRDA05 series is available in quantities of 2,500 and comes in tape and reel packaging. Large orders can be placed through authorized Littelfuse distributors worldwide, ensuring easy access for engineers and manufacturers. Whether you're designing next-generation telecom systems or critical industrial equipment, the SRDA05 series is a powerful and reliable solution that sets a new benchmark in transient suppression technology.
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