Features Model C-303™ is obsolete and not recommended for new designs. The 2420 Series is preferred. ■ Standard 5-pin configuration ■ Fail-short design ■ Low capacitance ■ Listed ■ Meets Telcordia 1361 & RUS PE-80 requirements Model C-303™ 5-Pin Gas Tube Protector Modules Bourns® Model C-303™ 5-Pin Protector Modules provide overvoltage protection in the industry-standard 5-pin configuration for use in central and remote office connector blocks as well as building entrance terminals. The protector housing is made of self-extinguishing thermoplastic in black (standard service) or red (special service) colors. Modules are available with either tin-alloy or gold-plated outside plant and central office pins. The ground pin is always tin-alloy plated. The pin plating can be be matched with the receptacle plating of the connector block or building entrance terminal. The protectors incorporate a fail-short design to ensure safe operation and protect people and equipment from prolonged electrical surges. Characteristics Test Methods per UL 497, CSA C22.2, Telcordia GR 974, 1361 and SBC SR 5165. E T E L O S B O DC Breakdown Voltage Range @ 2000 V/second ...................................................................... AC Breakdown @ 60 Hz ............................................................................................................. Impulse Breakdown 100 V/µs ................................................................................................................................. 1000 V/µs ............................................................................................................................... Insulation Resistance @ 100 Vdc .............................................................................................. > Insertion Loss @ 100 MHz .......................................................................................................... Return Loss @ 100 MHz ............................................................................................................. Capacitance Tip to Ring @ 1 MHz .............................................................................................. < Capacitance Tip or Ring to Ground @ 1 MHz ............................................................................ < Impulse Reset 1 52 V, 260 mA ......................................................................................................................... < 135 V, 200 mA ....................................................................................................................... < 150 V, 200 mA ....................................................................................................................... < Impulse Life Characteristics (Tip and Ring to Ground Simultaneously) 10 A, 10/1000 µs ................................................................................................................... > 100 A, 10/1000 µs ................................................................................................................. > 300 A, 10/1000 µs .................................................................................................................. > 500 A, 10/1000 µs .................................................................................................................. > 2,000 A, 10/250 µs ................................................................................................................. > 5,000 A, 20/100 µs ................................................................................................................. > 20,000 A, 8/20 µs ................................................................................................................... > AC Life Characteristics (Tip and Ring to Ground Simultaneously) 0.5 A rms continuous.............................................................................................................. > 1 A rms, 1 second, 600 ft. cable ............................................................................................. > 1 A rms, 1 second, 1 mile cable ............................................................................................. > 10 A rms, 1 second ............................................................................................................... > 65 A rms, 11 cycles ................................................................................................................ > 120 A rms, 0.1 second ........................................................................................................... High Current Capability and Thermal Operation (Tip and Ring to Ground) ................................. > Storage and Operating Temperature .......................................................................................... Safety 60 A, 3 sec. ............................................................................................................................ 120 A, 0.6 sec. ....................................................................................................................... 350 A, 0.04 sec. ..................................................................................................................... 30 A, 15 min. .......................................................................................................................... Safety Standards Listing.............................................................................................................. 280-420 V 280-420 V 625 V 875 V 1 GΩ Exceeds Category 5 Exceeds Category 5 1.25 pF typical 2.50 pF typical 10 ms 10 ms 150 ms 3000 operations 300 operations 100 operations 400 operations 2 25 operations 2 operations 1 operation 30 seconds 60 operations 60 operations 5 operations 1 operation 2 1 operation 30 A rms, 15 min. -55 to +85 °C Fail-short Does not cause a fire hazard Does not cause a fire hazard Fail-short, does not cause a fire hazard UL Listed to United States and Canadian safety standards Notes: Network applied. Per RUS PE-80. 1 2 Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. Model C-303™ 5-Pin Gas Tube Protector Modules Packaging Specifications Standard Package ................................................................................................................................. Dimensions (H x W x D) ........................................................................................................................ Weight ................................................................................................................................................... 100 modules 76.2 x 152.4 x 203.2 mm (3 x 6 x 8 in.) 2.0 kg (4.4 lbs.) 7-Type Gas Tube Protector Modules Voltage protection is provided with dual 350 Vdc gas tubes with fail-short mechanism that shunt transient voltages to ground and return to their normal state, providing protection that withstands thousands of operations. OSP TIP SHORT PIN LONG PIN EQUIPMENT TIP * GND E T E L O S B O * EQUIPMENT RING OSP RING LONG PIN SHORT PIN *Metallic shunts close circuit on power faults (fusible pellets melt). Gas tubes fail-short on high current power fault. Product Dimensions 42 (1.65) 18 (0.75) 10 (0.4) DIMENSIONS: MM (INCHES) 12.7 (0.50) How to Order Product Code Part Number Description Case Color Front Test Application Tin-Alloy Plated Pins 303-0755 A0328090 5-Pin Gas Tube Protector, 350 V Black No Standard Circuit 303-0775 A0312973 5-Pin Gas Tube Protector, 350 V Red No Special Circuit 303M-07S1G0 A0338076 5-Pin Gas Tube Protector, 350 V Black No Standard Circuit 303M-07S3G0 A0338078 5-Pin Gas Tube Protector, 350 V Red No Special Circuit Gold-Plated Pins Note: Order by Part Number. REV. D 01/13 Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications.