Release Date: Immediate

Contact: Antonio Valles

(480) 731-6202

Date: May 31, 2000

Hybrid-Type Transient Voltage Suppressors from CCI

Pass UL 497B Listed Requirements

Tempe, AZ--Circuit Components, Inc. (CCI), has been notified that its hybrid-type transient voltage surge suppressors have recently passed the UL 497B listed requirements for data communications and fire alarm circuits.

Underwriters Laboratories, North Brook, IL, conducted the testing. The devices tested are suppressors intended for data transmission, telecommunication, 4-20mA loops and general applications. The suppressors protect integrated circuits and the sensitive semi-conductors they contain from surges generated by lightning, inductive switching and electrostatic discharges.

The CCI products receiving this UL listing are used in control rooms and in field equipment. The UL listed products include: SPR-TM, SPR-42US, SPT-42U, SPU-420, SPN-42, SPT-43U, SPN-43, and SDD-400.

The UL 497B rating indicates that these surge suppressors have very low breakdown ratings (clamping voltage). This ensures that equipment will continue to operate even when it is subjected to extremely fast transients of 100 Volts per microsecond.

CCI offers a broad line of electrical suppression and filtering devices, with a choice of over 200 models. The company provides the most comprehensive line of transient suppression and filtering products in the industry.

For more information about CCI’s line of hybrid-type transient voltage surge suppressors, contact Antonio Valles at Circuit Components, Inc., 2400 South Roosevelt Street, Tempe, AZ 85282; telephone: (480) 731-6202; Fax: (480) 967-9385; email: avalles@cci-msc.com; Website: www.circuitcomponents.com.