. . . . . engineered solutions for the transient environment 2929 south fair lane tempe, arizona 85282 usa tel 602-431-8101 fax 602-431-2288 e-mail sales@protek-tvs.com web www.protek-tvs.com 19 PMMAD PMMAD PMMAD PMMAD PMMAD series series series series series steering diode (rail clamp) arra y iec 1000-4 compatible so-14 package description this series is designed with discrete diodes for complete isolation. each diode can be individually tested according to the electrical characteristics. for transient voltage protection, two diodes are configured in series with the anode of one connect to the cathode of the other diode (see rail clamp circuit). applications l high frequency data lines l rs-232 & rs-422 interface networks l 10 base t networks l lan/ wan l computer i/o ports features l iec 1000-4-2, -4 & -5 industry requirements l designed for rail clamp protection l esd protection > 40 kilovolts l working voltage > 50 volts l ul 94v-0 flammability classification l available in standard so-14 surface mount package 0 10 20 30 t - time - m s figure 1 pulse wave form 100 50 0 t d = t i pp / 2 e -t peak value i pp test waveform parameters t f = 8 m s t d = 20 m s t f i pp - peak pulse current - % of i pp rail clamp circuit + gnd or (-) maximum ratings @ 25 c ambient temperature (unless specified) package packaging approximate weight device markings miscellaneous molded so-14 surface mount package tube or 16mm tape per eia 481 0.15 grams logo & part number pin no. 1 indicated by dot on top of package mechanical characteristics continuous power dissipation operating & storage temperature continuous forward current 500mw -65 to +150 c 400ma i/o port see diagrams on following page.
20 0.1 1.2 25 40 protek part number electrical characteristics @ 25 c ambient temperature forward peak pulse current (see fig. 1) @ 8/20 m s i pp amps maximum forward voltage @ 100 ma v f volts maximum capacitance @ 4 v, 1 mhz c pf reverse leakage current @ 40 v i rm m a repetitive peak reverse voltage @ 10 m a v prp min volts see note 1 50 note 1: device types include: PMMAD130, PMMAD1103, PMMAD1105, PMMAD1106, PMMAD1107 and PMMAD1109. electrical characteristics applie s to all device types. 8 9 10 13 14 1 4 5 6 7 11 3 2 12 PMMAD130 dual 10 diode array 2 3 5 7 8 9 11 12 1 14 PMMAD1103 16 diode array nc pins 4, 6, 10 & 13 2 3 5 7 8 9 11 12 14 PMMAD1105 8 diode common cathode array nc pins 1, 4, 6, 10 & 13 2 3 5 7 8 9 11 12 14 8 diode common anode array nc pin 1, 4, 6, 10 & 13 PMMAD1106 2 3 11 12 4 5 9 10 1 8 7 14 PMMAD1107 dual 8 diode array nc pins 6 & 13 7 8 5 4 3 2 1 8 9 10 11 12 13 14 7 isolated diode array (independent) PMMAD1109 circuit diagram 5089 10/98
. . . . . engineered solutions for the transient environment 2929 south fair lane tempe, arizona 85282 usa tel 602-431-8101 fax 602-431-2288 e-mail sales@protek-tvs.com web www.protek-tvs.com 21 PMMAD1108 PMMAD1108 PMMAD1108 PMMAD1108 PMMAD1108 steering diode (rail clamp) arra y iec 1000-4 compatible so-16 package circuit diagram description this device is designed with discrete diodes for complete isolation. each diode can be individually tested according to the electrical characteristics. for transient voltage protection, two diodes are configured in series with the anode of one connect to the cathode of the other diode (see rail clamp circuit). applications l high frequency data lines l rs-232 & rs-422 interface networks l 10 base t networks l lan/ wan l computer i/o ports features l iec 1000-4-2, -4 & -5 industry requirements l eight (8) individual steering diodes l designed for rail clamp protection l esd protection > 40 kilovolts l working voltage > 50 volts l ul 94v-0 flammability classification l available in standard so-14 surface mount package maximum ratings package packaging approximate weight device markings miscellaneous molded so-16 surface mount package tube or 16mm tape per eia 481 0.15 grams logo & part number pin no. 1 indicated by dot on top of package mechanical characteristics continuous power dissipation operating & storage temperature continuous forward current 500mw -65 to +150 c 400ma 0 10 20 30 t - time - m s figure 1 pulse wave form 100 50 0 t d = t i pp / 2 e -t peak value i pp test waveform parameters t f = 8 m s t d = 20 m s t f i pp - peak pulse current - % of i pp 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 PMMAD1108 8 isolated diode array rail clamp circuit + gnd or (-) 40 0.1 25 1.2 protek part number electrical characteristics @ 25 c ambient temperature forward peak pulse current (see fig. 1) @ 8/20 m s i pp amps maximum forward voltage @ 100 ma v f volts maximum capacitance @ 4 v, 1 mhz c pf reverse leakage current @ 40 v i rm m a repetitive peak reverse voltage @ 10 m a v prp min volts ppmad1108 50 5090 10/98 i/o port
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