Features ■ Multi-Stage Protection (MSP®) ■ Switch-Grade Fail-Short ■ Balanced TRIGARD® GDT ■ Insulation Displacement Connectors (IDCs) ■ Self-resetting sneak current protection with ■ High-speed network compatible such as Bourns® TBU® devices ■ Overcurrent and overvoltage protection ■ Quick response to surges ■ High energy handling ■ ADSL2+ and VDSL2 UL UL Listed per UL 497 (File: E53117) C ® US LISTED 2377 MSP®/TBU® Series DigiGuard® Station Protector Bourns® 2377 MSP®/TBU® series is a new generation telecommunications station protector designed to be the best choice for protection of high-speed network data circuits. Bourns® 2377 MSP®/TBU® series protectors integrate four advanced technologies: our proprietary advanced TRIGARD® GDT, precision matched metal oxide varistors (MOVs), a switch-grade fail-short mechanism, and our TBU® (Transient Blocking Unit) technology which protects the circuit by rapidly switching to a blocking state. These technologies are combined to provide robust overvoltage and fast, resettable sneak current protection with extremely low energy let-through. Additionally, the MSP®/TBU® series has very low loss characteristics, making it the ultimate choice for protection of sensitive, high speed communication lines. A continuous DC bias such as sealing current or remote powering (span powering) can hold the TBU® device in a high resistance blocking state after the fault has passed. The TBU® device can be reset by momentarily disrupting the loop current or providing a low voltage (Vreset) condition on the line. Characteristics Test Methods per IEEE C62.31, UL 497, CSA C22.2, Telcordia GR 1361 and applicable sections of Telcordia GR 974. 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 .................................................. 14 pF typical Capacitance Line to Ground ....................................................1 MHz .................................................. 28 pF typical Line Resistance ..................................................................................................................................... 12 ohms typical Impulse Reset1 .........................................................................52 V, 260 mA ....................................... < 10 ms3 135 V, 200 mA ..................................... < 10 ms3 150 V, 200 mA ..................................... < 150 ms Impulse Life Characteristics .....................................................100 A, 10/1000 µs ............................... > 3000 operations2 (Per Side, Simultaneously) 300 A, 10/1000 µs ............................... > 1000 operations2 500 A, 10/1000 µs ............................... > 1000 operations4 2,000 A, 10/250 µs .............................. > 100 operations2 5,000 A, 20/100 µs .............................. > 10 operations2 20,000 A, 8/20 µs ................................ > 1 operation AC Life Characteristics .............................................................0.5 A rms continuous .......................... > 30 seconds 1 A rms, 1 second, 600 ft. cable ......... > 60 operations 1 A rms, 1 second, 1 mile cable .......... > 60 operations 10 A rms, 1 second ............................. > 20 operations 200 A rms, 11 cycles ........................... 1 operation5 120 A rms, 0.1 second ........................ 1 operation Life Test Criteria Insulation Resistance Throughout the Life Test ............................................................................... 100 megohms Life Test Failures .............................................................................................................................. 0.0 % Failures During Environmental Cycling w/surges............................................................................. 0.0 % Fail-Short (Vented or Non-vented Gas Tube) ........................................................................................ > 30 Arms, simultaneously Operating Temperature.......................................................................................................................... -55 to +85 °C Notes: 1 Network applied. 2 Exceeds Telcordia (Bellcore) GR 1361. 3 Surpasses Telcordia GR 974. 4 RUS (REA) PE-80. 5 Protector may short to ground. 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. The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. Users should verify actual device performance in their specific applications. 2377 MSP®/TBU® Series DigiGuard® Station Protector Product Dimensions 2372-02 Ground Mounting Stud (Order Separately) 5.59 (.22) 5.59 (0.22) 4.98 (.196) 16.26 (.64) 19.1 (0.75) 16.26 (.64) 10-32 UNF-2A THREAD 41.91 (1.65) 26.9 (1.06) 57.2 (2.25) 30.7 (1.21) 14.5 (0.57) 33.37 (1.55) 4.57 (.18) 17.78 (.70) How To Order 2377-45-HS-TBU ................................................ Standard Model 2377-45-BC-TBU* .................................... Balanced Capacitance 15.75 (.62) 31.75 (1.25) *BC versions are for xDSL systems that require Tip-to-Ground and Ring-to-Ground capacitive balance of ≤1 pF. DIMENSIONS: MILLIMETERS (INCHES) Related Products 80052 ................................................Test Clip for IDC 80053 ...................................... Insulation Tool for IDC Asia-Pacific: Tel: +886-2 2562-4117 • Fax: +886-2 2562-4116 EMEA: Tel: +36 88 520 390 • Fax: +36 88 520 211 The Americas: Tel: +1-951 781-5500 • Fax: +1-951 781-5700 www.bourns.com REV. C 01/15 “TBU” is a registered trademark of Bourns, Inc. in the U.S., Taiwan and European Community. “Bourns”, “MSP”, “DigiGuard” and “TRIGARD” are registered trademarks of Bourns, Inc. Specifications are subject to change without notice. The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. Users should verify actual device performance in their specific applications.