PHOENIX, Ariz. – Feb. 22, 2005 - ON Semiconductor (Nasdaq: ONNN) today introduced a new series of high performance, micro-packaged electrostatic discharge (ESD) protection diodes designed for single line protection of voltage sensitive components in portable and battery operated applications.
The five ESD5Z devices in the new series include the ESD5Z2.5T1 (2.5 V), ESD5Z3.3T1 (3.3 V), ESD5Z5.0T1 (5.0 V), ESD5Z6.0T1 (6.0 V), and ESD5Z7.0T1 (7.0 V). These devices are designed to clamp fast rising ESD pulses, preventing damage to voltage sensitive components on the board. An input waveform of 30 kilovolts (kV) - per the IEC61000-4-2 standard - will be clamped to less than 7 volts (V) in a matter of nanoseconds by the ESD5Z series devices. Their small size facilitates placement near input/output ports where ESD can enter the system, thus supan enter the system, thus suppressing the transient voltage event before it can be coupled into the rest of the board. In their off state, these ESD5Z devices exhibit very low leakage current of 5 nano Amps (nA), making them ideal for applications where power efficiency is paramount. The devices are also suitable for protecting voltage sensitive components from load switching transients on the power line, and can dissipate up to 200 watts (W) with an 8 x 20 µsec pulse waveform.
Offered in an ultra-small SOD-523 package measuring 1.6 mm x 0.8 mm x 0.7 mm, the ESD5Z devices are ideal for cell phones, PDA’s and MP3 players where board space is at a premium and ESD events are a common occurrence. They offer the designer maximum flexibility to protect a single line where board space or layout considerations preclude the use of multi-line protection devices.
The ESD5Z series outperforms the commonly used multi-layer varistors (MLVs) in several areas, while maintaining the small size advantage. The maximum clamping voltage of the devices is less than half that of an MLV, thus providing superior protection to sensitive IC’s. With an off state leakage level of 5 nA, the ESD5Z diodes offers a clear advantage over the higher leakage MLVs with regards to battery life. Another advantage offered is their ability to withstand multiple ESD strikes without shifts in electrical characteristics.
“As IC’s continue to evolve to smaller, denser geometries for portable applications, they are increasingly more sensitive to ESD voltage,” said Mamoon Rashid, ON Semiconductor general manager of the Small Signal Division. “ON Semiconductor will continue to develop high performance solutions to suppress ESD voltage in this challenging application space.”
Packaging and Price
The ESD5Z2.5T1, ESD5Z3.3T1, ESD5Z5.0T1, ESD5Z6.0T1, and ESD5Z7.0T1 are available in the SOD-523 package and are priced at $0.038 per unit in 10,000 unit quantities.
For additional technical information visit www.onsemi.com/tech or contact Jennifer Johnson at firstname.lastname@example.org
About ON Semiconductor
With its global logistics network and strong portfolio of power semiconductor devices, ON Semiconductor (Nasdaq: ONNN) is a preferred supplier of power solutions to engineers, purchasing professionals, distributors and contract manufacturers in the computer, cell phone, portable devices, automotive and industrial markets. For more information, please visit ON Semiconductor’s website at https://www.onsemi.com.
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