Agilent Technologies ( is offering a free power limiter application note, "Protect your Investment with Agilent Power Limiters." Engineers can learn the importance of power limiters and how limiters can help protect their sensitive test equipment and components. The eight-page note discusses limiter basics including applications and characteristics for maximum protection and the company's latest limiter technologies. The literature includes details on the N9355/6 series of limiters that provide exceptional broadband input protection from excess RF power, DC transients, and electrostatic discharge (ESD). A free copy of the note can be downloaded in PDF form from the link at