only one name means protektion? www.protekdevices.com 05050.r4 12/10 page 1 05050 tel185b - tel185e telephone interface protector d e s cription the tel185b/e is a two-stage transient voltage protector that provides primary and secondary protecton against lightning, inductve switching and electrostatc discharge (esd) transient threats. the frst stage diverts the transient current through the ground terminal return path and the second stage clamps the voltage to a safe level without inter - rupton of service. the tel185b/e is designed to protect telcom lines from common mode (line-to-ground) transients. there are four (4) independent lines referenced to the ground terminals. f eat u re s ? compatble with iec 61000-4-2 (esd): air - 15kv, contact - 8kv ? compatble with iec 61000-4-4 (eft): 40a - 5/50ns ? compatble with iec 61000-4-5 (surge): 95a, 8/20s, level 4 (line- gnd) & 48a, level 4 (line-line) ? designed for 185 volt (peak) telephone lines ? 4 wire, line-to-ground protecton ? permanent two-stage protecton ? subnanosecond response time ? automatc reset - does not interrupt service ? efectve against lightning, inductve switching and esd m echanical characteri s tic s ? approximate weight: 28 grams (tel185b) & 142 grams (tel185e) ? flammability ratng ul 94v-0 application s ? telcom equipment connected to telcom lines ? line connected modems and fax machines ? remote telephone extensions ? private wire/leased phone lines tel185b tel185e
only one name means protektion? www.protekdevices.com 05050.r4 12/10 page 2 05050 tel185b - tel185e t y pical de v ice characteri s tic s maxim u m rating s @ 25c u nless otherwise specifed parameter sy mbol v al u e u nit s peak operatng line voltage v op 185 volts operatng line current i o 200 ma transient voltage - 20 kv/wire transient current - 8/20s waveform - 10 ka/wire transient current - 8/20s waveform - 40 ka/protector operatng temperature t a -55 to 100 c storage temperature t stg -55 to 100 c response time - < 1 ns electrical characteri s tic s per line @ 25c u nless otherwise specifed part n u mber maxim u m clamping v oltage (8/20s) @ 500a v c v olt s maxim u m line thro u ghp u t re s i s tance r ohm s maxim u m leakage c u rrent @ 185v op i d a maxim u m capacitance @ 0v, 1 mh z c p f tel185b/e 330 12 5 800 in s tallation in s tr u ction s there are fve (5) terminals on both the line and equipment side of the tel185e - four telcom line terminals and one ground terminal. the ground terminal, as shown on the label, is connected internally. a single ground connecton is sufcient. however, it is recommended that both ground connectons be used for a lower imped - ance path to earth. this connecton can be made through the green ac power ground wire or a known earth ground. the ground wire should be #14 stranded wire. incoming telcom lines are cut or disconnected from the equipment to insert the tel185e product. the line side of the terminals are to be connected to outside telephone or telecommunicaton lines that carry the transient threats into the equipment to be protected. the equipment side of the terminals are to be connected to the equipment to be protected. the locaton of the product should be such that these wires are as short as possible. a #18 or 20 gauge wire can be used for these connectons. the tel185b requires an edge connector interface for installaton. a standard 15 positon edge connector can be used. when mountng or wiring the connectors onto a printed circuit board, be sure that the correct terminals are soldered. the line side of the board connectons are fnger contacts 2 thru 5. the boards are conformal coated for limited protecton against moisture. proteks telcom line protector is designed with a short circuit failure mode to give maximum protecton. a fuse, ptc, fusible link, or circuit breaker is recommended for each signal line on the input (line) side of the protector for those applicatons that require an open circuit failure mode. cauton: a low dc resistance ground may not be indicatve of a good lightning ground. lightning contains a broad spectrum of frequencies - up to 1 mhz. a low impedance path to ground at the transient frequencies is necessary. a ground strap is recommended or a #6 awg stranded wire. for wire lengths over 1.5 meters, there may be some excessive line to earth potental under severe thunderstorm conditons. for these applicatons, an additonal protector may be necessary at the equipment interface.
only one name means protektion? www.protekdevices.com 05050.r4 12/10 page 3 05050 tel185b - tel185e package information tel185b o u tline dimen s ion s dim millimeter s inche s min max min max a - 12.7 - 0.50 b - 76.2 - 3.0 c - 48.2 - 1.90 d - 7.6 - 0.30 e - 17.8 - 0.7 n ote s 1. i/o contacts spaced at 0.156 (3.96mm) centers. a b c line equipment d 2 5 12 15 orientation notch gnd e output connected to transmit/receive circuits input connected to line from outside world continuity input output 12 13 14 15 5 4 3 2
only one name means protektion? www.protekdevices.com 05050.r4 12/10 page 4 05050 tel185b - tel185e package information tel185e o u tline dimen s ion s dim millimeter s inche s min max min max a - 95.5 - 3.8 b 82.22 82.98 3.235 3.265 c - 57.2 - 2.25 d - 30.2 - 1.125 e - 15.5 - 0.61 f - 30.2 - 1.19 a b c d e f mountng hole for #8 screw terminal screw a adhesive mylar label terminal strip #6 screws equipment line 4 3 gnd 2 1 1 2 gnd 3 4 warning ordering information ba s e part n u mber marking tel185b logo, date code, terminal designatons and part number tel185e logo, date code, terminal designatons and part number
only one name means protektion? www.protekdevices.com 05050.r4 12/10 page 5 05050 tel185b - tel185e compan y information compan y profile protek devices, based in tempe, arizona usa, is a manufacturer of transient voltage suppression (tvs) products designed specifcally for the protecton of electronic systems from the efects of lightning, electrostatc discharge (esd), nuclear electromagnetc pulse (nemp), in - ductve switching and emi/rfi. with over 25 years of engineering and manufacturing experience, protek designs tvs devices that provide applicaton specifc protecton solutons for all electronic equipment/systems. protek devices analog products division, also manufactures analog interface, control, rf and power management products. copyright ? protek devices 1998 - this literature is subject to all applicable copyright laws and is not for resale in any manner. specifications: protek reserves the right to change the electrical and or mechanical characteristcs described herein without notce. design changes: protek reserves the right to discontnue product lines without notce and that the fnal judgement concerning selecton and specifcatons is the buyers and that in furnishing engineering and technical assistance. protek assumes no responsibility with respect to the selecton or specifcatons of such products. protek makes no warranty, representaton or guarantee regarding the suitability of its products for any partcular purpose, nor does protek assume any liability arising out of the applicaton or use of any product or circuit and specifcally disclaims any and all liability without limitaton special, consequental or incidental damages. life support policy: protek devices products are not authorized for use in life support systems without writen consent from the factory. contact us corporate headquarters 2929 south fair lane tempe, arizona 85282 usa by telephone general: 602-431-8101 sales: 602-414-5109 customer service: 602-414-5114 by fax general: 602-431-2288 by e-mail: sales: sales@protekdevices.com customer service: service@protekdevices.com technical support: support@protekdevices.com web www.protekdevices.com www.protekanalog.com
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