2r075~2r800sa-6 series gas discharge tube rohs gdts (gas discharge tubes) are placed in front of, and in parallel with, sensitive telecom equipment such as power lines, communication lines, signal lines and data transmission lines to help protect them from damage caused by transient surge voltages that may result from lightning strikes and equipment switching operations.these devices do not infuence the signal in normal operation. however, in the event of an overvoltage surge, such as a lightning strike, the gdt switches to a low impedance state and diverts the energy away from the sensitive equipment. gdts offer a high level of surge protection, a broad voltage range, low capacitance, and many form factors including new surface mount devices, which makes them suitable for applications such as mdf (main distribution frame) modules, high data-rate telecom applications (e.g. adsl, vdsl), and surge protection on power lines. their low capacitance also results in less signal distortion. when used in a coordinated circuit protection solution with ptc devices, tss thyristor surge protection devices, and mov (metal oxide varistor) devices, they can help equipment manufacturers meet gdt 01 ? compact, small form factor suitable for effcient assembly ? helps provide overvoltage fault protection against high energy surges ? suitable for high-frequency applications ? 4.2*6.2mm devices ? broad voltage range from 75v-800v ? various form factors: surface mount, axial leads, no leads ? low capacitance and insertion loss ? rohs compliant ? devices tested per itu k.12 recommendations ? non-radioactive materials ?telecommunications - mdf modules, xdsl equipment, rf system protection, antenna, base station ? industrial and consumer electronics, such as - surge protectors - alarm system benefts: features: applications: all data is subject to change,please check our data sheets at www.leiditech.com for updates.
electriacl characteristics gdt 02 type number impulse spark-over voltage maximum impulse discharge voltage maximum surge discharge current ac discharge current impulse life maximum insulation resistance maximum electrode capacitance 100v/s 20% tolerance 1kv/s 8/20s,10times 50se,1sec 10/1000s,100a testvoltage (g?) 1mhz (v) (v) (ka) (a) (times) dc(v) (pf) 2r075sa-6 75 700 5 5 500 25 1 1.0 2r090sa-6 90 700 5 5 500 25 1 1.0 2r140sa-6 140 700 5 5 500 50 1 1.0 2r150sa-6 150 700 5 5 500 50 1 1.0 2r200sa-6 200 550 5 5 500 50 1 1.0 2r230sa-6 230 550 5 5 500 50 1 1.0 2r250sa-6 250 600 5 5 500 50 1 1.0 2r260sa-6 260 600 5 5 500 50 1 1.0 2r300sa-6 500 600 5 5 500 100 1 1.0 2r350sa-6 350 700 5 5 500 100 1 1.0 2r400sa-6 400 700 5 5 500 100 1 1.0 2r420sa-6 420 700 5 5 500 100 1 1.0 2r470sa-6 470 800 5 5 500 100 1 1.0 2r500sa-6 500 800 5 5 500 100 1 1.0 2r550sa-6 550 800 5 5 500 100 1 1.0 2r600sa-6 600 900 5 5 500 250 1 1.0 2r800sa-6 800 1000 5 5 500 250 1 1.0 speci? cations are subject to change without notice. customers should verify actual device performance in their speci? c applications. pr oduct dimensions how to or de r 2055 - xx - sm - rp lf model number designato r vo ltag e (divided by 10 ) surface moun t packaging rp = reelpac k rohs complianc y lf = rohs compliant pr oduc t recommended pad layout dimensions: millimeter s packaging speci? cation s the model 2055-xx-sm ships standar d re elpack (-rp), 800 pieces per re el, 2,400 pieces per box. reel is 330 mm in diameter and 16 mm wide. 4.2 0. 2 0.8 0. 1 6.2 0. 2 6.2 0. 2 6.0 0. 2 dia. 3. 5 1. 3 5. 0 4.0 0. 1 1.55 0.05 dia. 6.4 0. 1 0.4 0.05 12.0 0. 1 16.0 0. 3 1.75 0. 1 7.5 0. 1 re v. g 04/11 product dimensions recommended pad layout all data is subject to change,please check our data sheets at www.leiditech.com for updates.
gdt 03 pb ? f ree assembl y pr e heat - te mperature min (t s(min) )1 50c - te mperature max (t s(max) )2 00 c - ti me (min to max) (t s )6 0 ? 1 80 secs a verage ramp up rate (liquidus t emp (t l ) to peak 3c/second ma x t s(max) to t l - ra mp-up ra te 5c/second ma x - te mperature (t l ) (liquidus) 21 7c - te mperature (t l )6 0 ? 1 50 seconds p eak t emperature (t p )2 6 0 +0/-5 c ti me within 5c of actual peak te mperature (t p ) 10 ? 30 seconds ra mp-down ra te 6c/second ma x ti me 25c to peak t emperature (t p )8 minutes max. do not exceed 260 c ti me e r u t a r e p m e t t p t l t s(max) t s(min) 25 t p t l t s time to peak temperatur e (t 25oc to peak) ramp-dow n ramp-u p preheat critical zone t l to t p solde ri ng pa r ame te rs - w av e solde ri ng (thr u-hole devices) solde ri ng pa r ame te rs - hand solde ri ng dwell ti me 0 20 40 6 0 80 100 120 140 16 0 180 200 220 240 26 0 280 300 0 10 20 30 40 50 6 0 70 80 90 10 0 11 0 12 0 13 0 14 0 15 0 16 0 17 0 18 0 19 0 20 0 21 0 22 0 23 0 24 0 ti me (seconds) te mperature (c) - measured on bottom side of board cooling ti me preheat t im e w ave pa ramete rl ead- fr ee r ecommendatio n pr eheat : (depends on flux a ctiv ation te mperat ure) (t ypical indust ry r ecommendation) te mperat ure minimum: 10 0 c te mperat ure maximum: 15 0 c p reheat t ime: 60-1 80 seconds so lder p ot t emperature: 280 c maximu m so lder dwell t ime: 2-5 seconds recommended pr ocess pa ra me te rs : solder iron t emperat ure: 350 c +/- 5c heating time: 5 seconds max. all data is subject to change,please check our data sheets at www.leiditech.com for updates.
gdt 04 part number code speci? cations are subject to change without notice. customers should verify actual device performance in their speci? c applications. pr oduct dimensions how to or de r 2055 - xx - sm - rp lf model number designato r vo ltag e (divided by 10 ) surface moun t packaging rp = reelpac k rohs complianc y lf = rohs compliant pr oduc t recommended pad layout dimensions: millimeter s packaging speci? cation s the model 2055-xx-sm ships standar d re elpack (-rp), 800 pieces per re el, 2,400 pieces per box. reel is 330 mm in diameter and 16 mm wide. 4.2 0. 2 0.8 0. 1 6.2 0. 2 6.2 0. 2 6.0 0. 2 dia. 3. 5 1. 3 5. 0 4.0 0. 1 1.55 0.05 dia. 6.4 0. 1 0.4 0.05 12.0 0. 1 16.0 0. 3 1.75 0. 1 7.5 0. 1 re v. g 04/11 packaging specif cations how to order 2 r 3 5 0 s a - 6 series dc line voltage lead type s=smd dimensions electrical characteristics a=5000a all data is subject to change,please check our data sheets at www.leiditech.com for updates.
gdt 05 speci? cations are subject to change without notice. customers should verify actual device performance in their speci? c applications. pr oduct dimensions how to or de r 2055 - xx - sm - rp lf model number designato r vo ltag e (divided by 10 ) surface moun t packaging rp = reelpac k rohs complianc y lf = rohs compliant pr oduc t recommended pad layout dimensions: millimeter s packaging speci? cation s the model 2055-xx-sm ships standar d re elpack (-rp), 800 pieces per re el, 2,400 pieces per box. reel is 330 mm in diameter and 16 mm wide. 4.2 0. 2 0.8 0. 1 6.2 0. 2 6.2 0. 2 6.0 0. 2 dia. 3. 5 1. 3 5. 0 4.0 0. 1 1.55 0.05 dia. 6.4 0. 1 0.4 0.05 12.0 0. 1 16.0 0. 3 1.75 0. 1 7.5 0. 1 re v. g 04/11 leiditech electronics are trademarks. information furnished is believed to be accurate and reliable. however, users should independently evaluate the suitability of and test each product selected for their own applications. leiditech electronics reserves the right to change or update, without notice, any information contained in this publication; to change, without notice, the design, construction, processing, or specification of any product; and to discontinue or limit production or distribution of any product. this publication supersedes and replaces all information previously supplied. without expressed or written consent by an officer of leiditech electronics, leiditech electronics does not authorize the use of any of its products as components in nuclear facility applications, aerospace, or in critical life support devices or systems. leiditech electronics expressly disclaims all implied warranties regarding the information contained herein, including, but not limited to, any implied warranties of merchantability or fitness for a particular purpose. leiditech electronics? only obligations are those in the leiditech electronics standard terms and conditions of sale and in no case will leiditech electronics be liable for any incidental, indirect, or consequential damages. shanghai leiditech electronics co.,ltd tel: +86- 021 50828806 fax: +86- 021 50477059-8008 email: sale1@leiditech.com website: http://www.leiditech.com all data is subject to change,please check our data sheets at www.leiditech.com for updates.
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