src devices dyad dry reed switches are ideally suited for small switching signal applications. this switch has sputtered ruthenium contacts and an extraordinary seal strength, achieved by a patented laser sealing of the glass. in low level or dry switching environments, both switches typically provide >1 billion operations. the switches have hermetically sealed contacts and offer a wide range of available magnetic sensitivities. features description ? small size ? smt-compatible ? easily formed leads ? sputtered ruthenium contacts ? hermetically sealed contacts ? fast switching speed ?up to 500hz ? wide range of available magnetic sensitivities applications approvals ? security ? proximity sensing ? smoke alarms ? automotive ? level sensor ? lamp current sensor ? relays ? ul listed standard test coil the magnetic force (expressed in ni, at or ampere turns) required to cause the reed switch contacts to close is called the pull-in or operate value. ordering information a complete part number is represented by the digits to the right. for example, fr2s1030 is a dyad with a minimum operate value of 10 and a maximum of 30. refer to the switch operating specification charts for available ranges. special ranges are available upon request. surface mount dyad refer to operating characteristics table for complete part number. maximum operate value (ni) minimum operate value (ni) fr2sxxxx dyad (1) consult factory for test procedure. the reed switch shall be placed in the test coil with the gap centered in the core of the coil winding. test leads and their clips must be non-magnetic. the longitudinal axis of the test coil and the test switch shall be vertical. fr2 part # coil - 1 coil definition narm1 ctc01 coil resistance 1200 ? number of turns 5,000 wire size (nom. diameter) 0.0399mm (awg 46) bobbin diameter (inside coil) 3.96mm winding length 10.4mm dyad part # operate range (ni) 1 FR2S1015 10 to 15 fr2s1020 10 to 20 fr2s1030 10 to 30 fr2s1520 15 to 20 fr2s1525 15 to 25 fr2s2025 20 to 25 dyad ? surface mount part # operate range (ni) 1,2,3 fr2024 10 to 15 fr2259 10 to 20 fr2282 10 to 30 fr2025 15 to 20 fr2249 15 to 25 fr2026 20 to 25 1 tolerance = 1.5ni 2 full blade sensitivity 3 surface mount switches are packaged 3,000 parts per reel fr2 1 www.srcdevices.com src devices
fr2 specifications all parameters are at 25 c unless otherwise stated. absolute maximum ratings are stress ratings. stresses in excess of these ratings can cause permanent damage to the device. functional operation of the device at these or any other conditions beyond those indicated in the operational sections of this data sheet is not implied. exposure of the device to the absolute maximum ratings for extended period may degrade the device and effect its reliability. ratings (@ 25? c) parameter conditions symbol min typ max units contact ratings operate ampere turns range full blade tolerance = 1.5ni at 10 - 30 ni release ampere turns range full blade tolerance = 1.5ni at 5 - 30 ni switching voltage max dc/peakac resistive v l - - 200 vdc switching current max dc/peakac resistive i l - - 500 mamps carry current max dc/peakac resistive i c - - 1.5 amps contact rating max dc/peakac resistive - - - 10 va life expectancy 1v, 10ma signal level - - 1000 - x10 6 ops 10v, 10ma low level - - 500 - x10 6 ops 50v, 100ma telecom load - - 2 - x10 6 ops 100v, 100ma rated loads - - 2 - x10 6 ops static contact resistance 50mv, 10ma (1) cr - 80 150 m ? contact material - - ru - - switch specifications insulation resistance (2) 100v, 25 c, 40% rh ir 10 9 10 11 - ? capacitance across open contacts - - 0.3 - pf dielectric strength (5) between contacts - 250 300 - vdc/peak ac operate time, at nominal coil voltage, t op - - 0.5 ms including bounce 10hz square wave release time zener-diode suppression (3) t rel - - 0.2 ms environmental ratings storage temperature t a -40 - +125 c operating temperature t o -40 - +125 c soldering temperature - - - +240 c vibration resistance 5hz - 200hz g - - 20 gs shock resistance 11 1ms, 1 / 2 sine wave s - - 100 gs weight - - 0.13 - grams/unit parameter min typ max units switching voltage fr2 - dyad 200 volts switching current fr2 - dyad 0.5 amps carry current fr2 - dyad 1.5 amps switching frequency fr2 - dyad 500 hz contact resistance fr2 - dyad 150 m ? (see detailed specifications for more information.) (1) contact resistance measured with 4 terminal method, 1.1" between test leads (2) >10 12 ? is available upon request (3) a 24v zener in series with a diode across the coil (4) use caution not to exceed vibration resistance limits while ultrasonically cleaning. contact clare engineering for more detail s/recommendations (5) 15 ampere turn minimum dyad src devices 2 usa 1-866-src-8668 europe 32-89-328850 far east 886-2-2698-8422 www.srcdevices.com
fr2 dyad performance data* *the performance data shown in the graphs above is typical of device performance. for guaranteed parameters not indicated in the written specifications, please contact our application department. recommended pad sizes mechanical dimensions dimensions mm (inches) dyad operate shift after lead trimming overall length in inches percent operate increase after lead cut 0.7 40 35 30 25 20 15 10 5 0 0.8 0.9 1 1.1 1.2 1.355 dyad dielectric breakdown vs. operate sensitivity average operate (ni) dielectric breakdown (vdc) 8-9 1200 1000 800 600 400 200 0 12-13 16-17 20-21 24-2526-32 min. avg. max. dyad capacitance across open contacts capacitance (pf) number of units 40 35 30 25 20 15 10 5 0 0.15 0.2 0.25 0.3 0.35 0.40 dyad contact resistance throughout life 10v, 12ma resistive load operations (millions) average resistance (mohms) 0 60 50 40 30 20 10 0 10 20 30 40 50 60 70 80 90 100 110 120 dyad contact resistance throughout life 50v, 100ma resistive load operations (millions) average resistance (mohms) 0.2 60 50 80 70 40 30 20 10 0 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3. 0 0 cm15 series operate ni vs. release ni test coil: narm 1; full length terminals operate ni release ni 10 30 25 20 15 10 5 0 12 14 16 18 20 22 24 26 28 30 minimum maximum dyad 34.54 max. (1.360) 9.65 ref. (0.380) 2.29 max. (0.090) 1.65 max. (0.065) 1.32 max. (0.052) 15.24 max. (0.600) 0.18 (0.007) + 7 o dyad smt 2.03 max. (0.080) 17.53 (0.690) 1.02 (0.040) 1.20 typ. (0.047) 0.25 max. (r 0.010) 4 places 19.56 max. (0.770) 15.24 max. (0.600) 2.29 max. (0.900) 1.32 max. (0.052) 1.22 (0.048) max. twist allowed typ. both ends + 10 o + 5 o dyad smt 16.01 max. (0.63) 2.79 (0.110) 2.54 (0.100) dimensions mm (inches) 3 www.srcdevices.com usa 1-866-src-8668 europe 32-89-328850 far east 886-2-2698-8422 dyad src devices
tape and reel packaging for dyad -gull wing terminals tape & reel packaging 1.75 (.069) 4.00 (.157) 1.55 .05 (.061 .002) .300 .013 (.012 .0005) .50 (.020) 2.29 (.090) top cover tape 2.00 (.079 ) 1.93 (.076 ) .28 (.011 ) 2.49 (.098 ) 8.00 (.315) user direction of feed 32.00 .31 (1.260 .012) 23.01 max (.906) 20.12 (.792) 14.63 (.576) 14.20 (.559) 28.40 (1.118) 2.49 (.098) 2.00 min. dia. typ. (.079) embossment embossed carrier top cover tape thickness .10 max. (.004) 8? max fr2 dyad s r c d e v i c e s dimensions mm (inches) 4 www. sr c de vi ce s .com usa 1- 8 66 - sr c - 8 668 europe 32 - 89 - 32 8 85 0 far east 8 8 6 - 2- 2 6 98 - 8 42 2
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