Features ■ Patent #6,327,129 ■ High current handling ■ Balanced TRIGARD® ■ Compact, industry standard footprint ■ ■ Meets test requirements of Telcordia UL Listed per UL 497 (File: 53117) ■ Reliability is improved by elimination of the air Back-Up-Gap (BUG) ■ Multi-Stage Protection (MSP®) ■ Quick response ® GR 974, GR1361, SR 5165 and RUS PE-80 ■ Telcordia Analysis report DA-1843 155HS Series Digi.Guard II - MSP® Heavy Duty Station Protector Bourns® Model 155HS Digi.Guard II Multi-Stage Protector is a new generation telecommunications Station Protector designed to be the best all around choice for protecting copper pair voice-band and high speed data circuits. Combining the strengths of Gas Tube and solid-state protectors, the Model 155HS integrates three advanced protection technologies: a proprietary sixth-generation Gas Tube, a precision matched metal oxide varistor and a patented Switch-Grade Fail-Short mechanism. Bourns® 2378-35 can be used universally for POTS and high speed data, e.g. ISDN, ADSL, ADSL2+, VDSL, VDSL2, other xDSL protocols and high speed Ethernet. Bourns® MSP® technology provides unparalleled overvoltage protection with low loss on paired copper communications circuits. The Model 155 is the most economical, reliable and best performing choice for overvoltage protection of paired copper communications circuits. Characteristics Test Methods per IEEE C62.31, UL 497, Telcordia GR-1361, applicable sections of Telcordia GR 974. UL Listed. DC Breakdown ............................................................................................................................................... 300-400 V AC Breakdown, 60 Hz .................................................................................................................................... 300-400 V Impulse Breakdown 100 V/µs .................................................................................................................................................... 600 V 1000 V/µs .................................................................................................................................................. 650 V Insulation Resistance @ 100 Vdc .................................................................................................................. >1 GΩ Insertion Loss @ 100 MHz ............................................................................................................................. <0.4 dB (Category 5) Return Loss @ 100 MHz ................................................................................................................................ >14 dB (Category 5) Capacitance Line to Line @ 1 MHz ................................................................................................................ 10 pF typical Capacitance Line to Ground @ 1 MHz ........................................................................................................... 20 pF typical Impulse Reset1 (DC Extinguishing) 52 V, 260 mA ............................................................................................................................................. <10 ms3 135 V, 200 mA ........................................................................................................................................... <10 ms3 150 V, 200 mA ........................................................................................................................................... <150 ms Impulse Life Characteristics (Per-Side, Simultaneously) 100 A, 10/1000 µs ..................................................................................................................................... >3000 operations 300 A, 10/1000 µs ..................................................................................................................................... >1000 operations 500 A, 10/1000 µs ..................................................................................................................................... >1000 operations 2,000 A, 10/250 µs .................................................................................................................................... >100 operations 5,000 A, 20/100 µs .................................................................................................................................... >10 operations 20,000 A, 8/20 µs ...................................................................................................................................... >10 operations4 AC Life Characteristics 0.5 A rms continuous ................................................................................................................................. >30 seconds 1 A rms, 1 second, 600 ft. cable ................................................................................................................ >60 seconds 1 A rms, 1 second, 1 mile cable ................................................................................................................. >60 operations 10 A rms, 1 second .................................................................................................................................... >20 operations 65 A rms, 11 cycles .................................................................................................................................... >1 operation4 120 A rms, 0.1 second ............................................................................................................................... >1 operation Life Test Criteria Insulation Resistance Throughout the Life Test......................................................................................... 100 MΩ Life Test Failures ....................................................................................................................................... 0.0 % Failures During Environmental Cycling w/ surges ..................................................................................... 0.0 % Failshort (vented or non-vented gas tube)...................................................................................................... >30 Arms, simultaneous Operating Temperature................................................................................................................................... -55 to +85 °C Notes: 1 Network Applied 2 Exceeds Telcordia 1361 3 Surpasses Telcordia GR 974 4 RUS (REA) PE-80 Line to Line voltage is approximately 1.8 to 2 times the stated Line to Ground breakdown voltage. Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. 155HS Series Digi.Guard II - MSP® Heavy Duty Station Protector How To Order Model 155HS-MSP ......................................................................................................................................... Part # 2378-35-HS Model 155HS-BC* .......................................................................................................................................... Part # 2378-35-BC* Model 155HS-BC should be used on DSL systems that require Tip-to-Ground and Ring-to-Ground capacitive balance of ≤1 pF. Product Dimensions 2378-35-HS 10-32 UNF-2A THREAD, 2 PLCS. 11.18 DIA. (.43) 11.18 (.44) 28.9 (1.14) 14.22 (.56) GROUND CLIP 15.75 (.62) PLASTIC HOUSING 39.37 (1.55) 22.61 (.89) 21.08 (.83) 15.75 (.62) 11.94 (.47) 39.62 (1.56) 23.88 (.94) 15.75 (.62) 2372-02 Ground Mounting Stud (order separately) 5.59 (.22) 4.98 (.196) J 16.26 (.64) 16.26 (.64) 10-32 UNF-2A THREAD DIMENSIONS: 41.91 (1.65) 33.37 (1.55) 4.57 (.18) 17.78 (.70) 15.75 (.62) MM (INCHES) Asia-Pacific: Tel: +886-2 2562-4117 Fax: +886-2 2562-4116 Europe: Tel: +41-41 768 5555 Fax: +41-41 768 5510 The Americas: Tel: +1-951 781-5500 Fax: +1-951 781-5700 www.bourns.com 31.75 (1.25) REV. K 08/12 “MSP” and “TRIGARD” are registered trademarks of Bourns, Inc. Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications.