Circuit Protector prevents damage to telephony equipment.

Press Release Summary:

Incorporating PolySwitch(TM) PPTC overcurrent technology with MOV component, thermally protected 2Pro(TM) provides current limiting during overcurrent events and voltage clamping during overvoltage events. Hold current is greater than 120 mA, and voltage clamp at 1 mA is ~270 V. Featuring resettable functionality, RoHS-compliant device is suited for use in cordless phones, VoIP gateways, data modems, set-top boxes, security systems, analog linecards, and ISDN linecards.

Original Press Release:

Raychem Circuit Protection Introduces Integrated Overcurrent/Overvoltage Protection Device for Telephony and VOIP

MENLO PARK, Calif.--June 22, 2006--Raychem Circuit Protection, a business unit of Tyco Electronics, has announced the introduction of its 2Pro(TM) device series that features integrated overcurrent/overvoltage circuit protection technology designed to help prevent damage to telephony communications equipment. The device's small footprint, resettable functionality and coordinated protection capabilities allow for use in a wide range of telephony and VoIP (Voice over Internet Protocol) equipment applications such as cordless phones, VoIP gateways, data modems, set-top boxes, security systems, MDF (Main Distribution Frame) modules, analog linecards and ISDN (Integrated Services Digital Network) linecards.

Power surge damage to PSTN (Public Switched Telephone Network) and VoIP equipment may occur as a result of lightning and ESD (Electrostatic Discharge) surges, power contact, and induction with AC lines. The RoHS-compliant 2Pro device incorporates PolySwitch(TM) PPTC (Polymeric Positive Temperature Coefficient Resistor) overcurrent technology with an MOV (Metal Oxide Varistor) component into one innovative, thermally protected device to help provide current limiting during overcurrent events and voltage clamping during overvoltage events. This single-device approach to coordinated circuit protection helps reduce component count and improve equipment reliability.

The widespread adaptation of VoIP gateways in homes and enterprise environments has resulted in increasingly stringent safety requirements for Customer Premise Equipment. The 2Pro device helps equipment manufacturers comply with UL 60950 and remain operational after specified lightning tests. It also helps equipment comply with surge tests per TIA-968-A, IEC 60950, and ITU-T K.20/K.21. The UL 497A listed protector also helps provide ESD protection.

"The new 2Pro protection device helps meet important performance parameters for cost-sensitive PSTN and VoIP telephony equipment," said Boris Golubovic, global marketing manager for Raychem Circuit Protection. "Additionally, this solution helps improve network reliability, reduce maintenance and repair costs, and enhance user-satisfaction with customer premise equipment."

The 2Pro overcurrent/overvoltage protection device features a hold current of >120 mA and the voltage clamp at 1 mA is ~270 V.

2Pro devices are compatible with industry standard installation procedures, and are available in tape and reel packaging for compatibility with high-volume manufacturing. For further information or technical assistance, call (800) 227-7040, or visit

Price: $0.32 in quantities of 100k units/year
Availability: Samples available now
Delivery: 8-10 weeks ARO

About Tyco Electronics
Tyco Electronics, a business segment of Tyco International Ltd., is the world's largest passive electronic components manufacturer; a world leader in cutting-edge wireless, active fiber optic and complete power systems technologies; and a provider of premise wiring components and systems. Tyco Electronics provides advanced technology products from over forty well-known and respected brands, including Agastat, Alcoswitch, AMP, AMP NETCONNECT, Buchanan, CII, CoEv, Critchley, Elcon, Elo TouchSystems, M/A-COM, Madison Cable, OEG, Potter & Brumfield, Raychem, Schrack and Simel. For more information, visit

Nick Rottler
Manager, Global Marketing Communications
Tyco Electronics / Raychem Circuit Protection
PH: (717) 592-2316
PH: (800) 227-7040

Mike Ratcliff
Tyco Electronics

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