Littelfuse has recently launched the SRDA05 family of surge protection arrays, specifically designed to safeguard telecom data lines from electrostatic discharge (ESD) and high-energy surges. This new series delivers up to 20% more power and surge handling capability compared to similar products on the market. By integrating a low-capacitance steering diode with an additional Zener diode, the SRDA05 offers improved electrical design margins while maintaining top-tier ESD protection without compromising performance.
The SRDA05 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 lines. It's also well-suited for industrial equipment and medical devices where reliable protection is critical.
Chad Marak, Director of the TVS Diode Array Family at Littelfuse, 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 safety margins based on industry standards and real-world electrical threats." He added, "Compared to leading competitors, the SRDA05 series features higher surge ratings (30A vs. 25A), rated power (600W vs. 500W), and ESD ratings (30kV vs. 8kV)."
Key features of the SRDA05 family include:
- **Powerful Surge Protection**: IEC61000-4-5 compliant, with 30A (8/20μs) and 600W peak pulse power.
- **Low Dynamic Resistance**: Only 0.8Ω, ensuring efficient current handling.
- **Low Capacitance**: 8pF (typical) between I/O and ground, preserving signal integrity.
- **Enhanced ESD Protection**: Exceeds IEC61000-4-2 standards with ±30kV (contact) and ±30kV (air).
Additional benefits include:
- 20% higher power and surge handling than comparable solutions, offering better design margins.
- Best clamping voltage for modern sensitive chipsets, preventing failures and improving system reliability.
- 20% lower capacitance than similar products, minimizing signal distortion and data loss.
- ESD performance far surpasses the highest IEC61000-4-2 levels (±8kV).
The SRDA05 series is available in quantities of 2,500, packaged in tape and reel format. Large orders can be placed through authorized Littelfuse distributors worldwide, making it easier for engineers to integrate this advanced protection into their designs. Whether you're working on telecom infrastructure or industrial systems, the SRDA05 is a powerful and reliable choice for robust ESD and surge protection.
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