Thyristor Surge Protectors suit telecommunications devices.
Press Release Summary:
Offered in DO-214AA surface mount package and DO-15 axial leaded package, NPxxx Series includes 44 devices that protect telecommunication circuits found in modems, residential gateways, and central office access equipment. Bidirectional units range from 64-350 V and are available at surge ratings of 50, 80, and 100 A. Used as part of secondary protection circuit, devices provide overvoltage protection by diverting energy away from circuit being protected.
Original Press Release:
ON Semiconductor Introduces New Series of Thyristor Surge Protection Devices
New NPxxx TSPDs are ideal for surge protection of telecommunication circuits found in modems, residential gateways, and central office access equipment
PHOENIX, Ariz. - Nov. 14, 2007 - ON Semiconductor (NASDAQ: ONNN), a global leader in efficient power semiconductors solutions, has expanded its lineup of circuit protection solutions with the introduction of the new NPxxx series of Thyristor Surge Protection Device (TSPD) for telecommunications applications.
The NPxxx series of 44 devices protect telecommunication circuits found in central office, access and customer-premises equipment from over voltage conditions. Ideal applications include modems, residential gateways, Digital Subscriber Line Access Multiplexer (DSLAM), and Integrated Voice Data (IVD) cards.
Offered in both an industry-preferred DO-214AA surface mount package (SMB) and a robust DO-15 axial leaded package, the devices are reliable and economical. Used as part of the secondary protection circuit, these devices provide overvoltage protection by diverting energy away from the circuit being protected. The NPxxx devices are UL497A certified, and implementation into electronics applications assists in meeting various regulatory requirements including GR-1089-CORE, ITU K.20/K.21/K.45, IEC 61000-4-5, IEC 60950, YD/T 993, YD/T 950, YD/T 1082.
"ON Semiconductor is committed to providing our customers with solutions to the increasingly complex circuit protection problems faced by our customers," said Gary Straker, ON Semiconductor director of Protection and Control products within in the Standard Products Group. "Additional circuit protection solutions will be introduced that target the various challenges facing today's Telecom systems designers.
The Devices
The 44 new NPxxx devices are high surge current TSPDs offered in a range of protection voltages from 64 volts (V) to 350 V. They are available at surge current ratings of 50 amps, 80 amps and 100 amps. The devices limit voltage and divert surge current to ground. They are bidirectional, so they are able to have functionality of two devices in a single package. This saves valuable space on board layout. Basically, these devices act as a "crowbar" when an overvoltage occurs - diverting potentially damaging energy away from the sensitive circuit or device. Once the transient overvoltage has passed, these devices return to their normal "off" or transparent state, and appear invisible to the normal operation of the circuit. With no wearout characteristics, these TSPDs feature stable performance characteristics under fast transient conditions - assuring reliable and continued equipment operation.
The NPxxxx devices are offered in 5.40 mm x 3.5 mm DO-214AA surface mount package and the 7.60 mm x 3.60 mm DO-15 Axial Lead package and priced at $0.10 per unit in 10,000 unit quantities.
For more information about these and other ON Semiconductor Circuit Protection devices visit www.onsemi.com/circuitprotection.
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 power supply, computer, consumer, portable/wireless, automotive and industrial markets. For more information, please visit ON Semiconductor's website at www.onsemi.com.
