Top-Up Industry Corp, founded in 1992, is an ISO 9001-certified manufacturer of a wide variety of electronic parts including potentiometers, attenuators, switches, SMT jacks, varistors, remote controls and so forth. Most of our products are widely used in electronic appliances, information equipment and car electronics. Other products offered At our mainland China factory, Top-Up also manufactures RCA (pin) jacks, phone plugs, phone sockets and audio/video cables. We have over 1,000 types of applications for image and voice machines, hi-fi TVs, videos, KTVs, monitors and multimedia computers. Strong R&D team Innovative designs and meeting your requirements are the primary goals of our R&D department. We create an estimated 20 new models every month and work individually with you to make your confidential designs a reality. Quality assurance Top-Up has passed a number of international safety approvals such as UL, CSA, SAA, VDE, SEV, SEMKO and many other certifications. These make Top-Up Industry confident in assuring you premier quality products at a reasonable price.