features superior protection at a low price balanced trigard patented switch-grade fail-short device quick response and high energy handling low capacitance (<2.5 pf) - ideal for high- speed networks in high exposure environments meets test requirements of telcordia gr 974, gr1361, sbc sr 5165 and rus pe-80 telcordia analysis report da-1547 per ul 497 (file: 53117) solid brass, gold-plated pins test point access option sealed option for harsh environments characteristics 2420 series - 5-pin gas discharge tube (gdt) protector speci cations are subject to change without notice. customers should verify actual device performance in their speci c applications the bourns ? 3-type 2420 overvoltage protection modules utilize bourns? proprietary high-ef? ciency gas discharge tube with our patented switch-grade fail-short mechanism to provide robust and reliable surge and thermal overload protection at a very competitive price. the 2420 series is based on bourns? three-terminal common chamber gdt. this design provides greatly improved and balanced turn-on characteristics for overvoltage protection. the gdt is ul approved for use without a back-up device. air back-up devices can become contaminated; the circuitry of the 2420 eliminates this possibility. our unique switch - grade fail-short device provides more reliable thermal overload protection compared to commonly used solder pellet or insulatio n burn-through designs. bourns ? 2420 series 5-pin protectors can be used universally for broadband voice and data circuits including adsl, adsl2+,vdsl, vdsl2 and high-speed ethernet. the 2420 series is an economical, reliable and low capacitance choice for overvoltage protectio n of copper pair circuits. test methods per ul 497, csa c22.2, telcordia gr 974, 1361 and sbc sr 5165. dc breakdown .................................................................................................................. ............................. 280-420 v ac breakdown @ 60 hz .......................................................................................................... ....................... 280-420 v impulse breakdown 100 v/s ................................................................................................................. ................................... 625 v 1000 v/s ................................................................................................................ .................................. 875 v insulation resistance @ 100 vdc ............................................................................................... .................... >1 g insertion loss @ 100 mhz ...................................................................................................... ........................ exceeds category 5 return loss @ 100 mhz ......................................................................................................... ........................ exceeds category 5 capacitance tip to ring @ 1 mhz ............................................................................................... .................. <1.25 pf typical capacitance tip or ring to ground @ 1 mhz ..................................................................................... ........... <2.50 pf typical impulse reset 1 52 v, 260 ma ............................................................................................................. ................................ <10 ms 135 v, 200 ma ............................................................................................................ ............................... <10 ms 150 v, 200 ma ............................................................................................................ ............................... <150 ms impulse life characteristics (tip and ring to ground simultaneously) 10 a, 10/1000 s ......................................................................................................... .............................. >3000 operations 100 a, 10/1000 s ........................................................................................................ ............................. >300 operations 300 a, 10/1000 s ........................................................................................................ ............................. >100 operations 500 a, 10/1000 s ........................................................................................................ ............................. >400 operations 2 2,000 a, 10/250 s ....................................................................................................... ............................. >25 operations 5,000 a, 20/100 s ....................................................................................................... ............................. >2 operations 20,000 a, 8/20 s ........................................................................................................ .............................. >1 operation ac life characteristics (tip and ring to ground simultaneously) 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 ....................................................................................................... ............................ >5 operations 65 a rms, 11 cycles ...................................................................................................... ............................. >1 operation 2 120 a rms, 0.1 second .................................................................................................... .......................... 1 operation high current capability and thermal operation (tip and ring to ground) .................................................... >30 a rms, 15 min. storage and operating temperature ............................................................................................. ................. -55 to +85 c telcordia analyzed for controlled (non-sealed) and uncontrolled, high-exposure (sealed) environments per gr 974 and sbc sr 5165 . telcordia technical analysis report da-1547. notes: 1 network applied 2 per rus pe-80 line to line voltage is approximately 1.8 to 2 times the stated line to ground breakdown voltage. u l ? c us listed
19.0 (0.75) 11.2 (0.440) 5.6 (0.220) 42.17 (1.66) 29.9 (1.18) 10.2 (0.40) 5.1 (0.20) 11.2 (0.44) 12.8 (0.50) 2.2 (.085) dia. 2 plcs. 2.3 (.092) dia. 5 plcs. 3.6 (0.14) 6.1 (0.240) 5.7 (0.223) msp and trigard are registered trademarks of bourns, inc. speci? cations are subject to change without notice. customers should verify actual device performance in their speci? c applications 2420 series - 5-pin gas discharge tube (gdt) protector product dimensions rev. m 02/11 dimensions: mm (inches) how to order 2420 - x xx - x - xx model number designator module length 3 = standard: 52.37 mm (2.06 in.) 7 = special short: 41.19 mm (1.62 in.) housing color/circuit type 1 = black/standard 6 = blue/standard 10 = yellow/standard 3 = red/special 9 = orange/standard service (non-bridgelifter) pin plating g = gold plated n = tin plated special options s = sealed case st = sealed case and test points* t = test points* *t and st options are not available on 2420-7x short module. examples: 3b1e = 2420-31-g (black, no test points) 3c1e = 2420-31-g-t (black, with test points) 3b3e = 2420-33-g (red, no test points) 3c3e = 2420-33-g-t (red, with test points) 30.99 (1.22) 24.9 (0.98) 10.2 (0.40) 5.1 (0.20) 6.15 (0.24) 2420-3 module 2420-7 module schematic equipment tip equipment ring o.p. tip gnd o.p. ring asia-paci c: 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
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