The SDxx family of transient voltage suppressor (TVS) diodes is a series pioneered by Semtech for general purpose circuit level electrostatic discharge (ESD), cable discharge (CDE), electrical fast transient (EFT) and lightning surge protection. These robust protection devices offer multiple working voltage options and provide superior electrical characteristics such as lower clamping voltage and no device degradation when compared to polymer and MLV devices.
- 12 V working voltage
- Protects one I/O or power line
- 350 Watts peak pulse power (tP = 8/20 µs)
- Transient protection for data lines to
- IEC 61000-4-2 (ESD) ± 25 kV (air), ± 10 kV (contact)
- IEC 61000-4-4 (EFT) 40 A (5/50 ns)
- IEC 61000-4-5 (lightning) 24 A (8/20 µs)
- Small package for use in portable electronics
- Suitable replacement for MLVs in ESD protection applications
- Low clamping voltage
- Low leakage current
- Solid-state silicon-avalanche technology
- Lead-free, RoHS and WEEE compliant
- Cell phone handsets and accessories
- Microprocessor-based equipment
- Personal digital assistants (PDAs)
- Notebooks, desktops, and servers
- Portable intrumentation
- Pagers peripherals
- 3000 pcs. Tape & Reel
(-40°C to +85°C / 4000 cycles)
(50°C, 4000 Hrs)
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The Importance of Keyboard ESD Protection
Since the dawn of computers, the keyboard has been the primary communication mechanism between human and machines. Over the years, many technologies and interfaces have changed, but the keyboard has barely changed in both form and function. Recently, I bought an exclusive wireless keyboard. Initially, it communicated with the computer via Bluetooth without any issues. However, after a month or so, it suddenly stopped. When I opened the internal circuit, I was surprised that the keys had no electrostatic discharge (ESD) protection. Any electronic device's keypad, side keys or push buttons are vulnerable to ESD due to constant human interaction with them. Adding ESD protection devices in a keyboard/keypad/side keys can avoid disastrous situations such as the failure of my keyboard. Let us discuss ESD in general and how we can protect our electronic devices from it.
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