applications features description ordering information src devices molded ultra-mini dyad tm is well suited for small signal switching applications. the small size lends itself to surface mountable applications; working well on higher density pc boards. the molded ultra-mini dyad tm has sputtered ruthenium contacts and an extraordinary strength achieved by a patented laser sealing of the leads. in low level or dry switching environments, switches typically exceed 1 billion operations. in addition, the molding process provides a solid plastic outer shell. this plastic shell provides superior mechanical strength, eliminates concerns over handling glass switches, and provides an ideal solution for high speed, automated assembly environments. standard test coil cm5 part # coil-1 coil definition narm1 ctc01 coil resistance 1200 ? number of turns 5,000 wire size 0.0399mm (awg 46) bobbin diameter (inside cell) 3.96mm winding length 10.4mm a complete part number is represented by the digits to the right. for example, cm5s1030 is a molded ultra- mini dyad with a minimum operate value of 10ni and a maximum of 30ni. refer to the switch operating specification charts for available ranges. special ranges are available upon request. surface mount molded ultra-mini dyad refer to operating characteristics table for complete part number. molded ultra-mini dyad molded ultra-mini dyad surface mount 1 tolerance = 1.5ni 2 full blade sensitivity 3 surface mount switches are packaged 3,000 parts per reel part # operate range (ni) 1 cm5s1015 10 to 15 cm5s1020 10 to 20 cm5s1030 10 to 30 cm5s1520 15 to 20 cm5s1525 15 to 25 cm5s2025 20 to 25 part # operate range (ni) 1,2,3 CM5-2319 10 to 15 cm5-2315 10 to 20 cm5-2376 10 to 30 cm5-2325 15 to 20 cm5-2341 15 to 25 cm5-2378 20 to 25 molded ultra-mini dyad cm5 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 superior mechanical strength enhanced for better auto placement security ? proximity sensing ? smoke alarms automotive ? level sensor ? lamp current sensor relays 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. (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. cm5sxxxx maximum operate value minimum operate value "s" for straight switch src devices 1 www.srcdevices.com
cm5 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. absolute maximum ratings (@ 25? c) molded ultra-mini dyad parameter min typ max units switching voltage cm5 - molded ultra mini-dyad - - 175 volts switching current cm5 - molded ultra mini-dyad - - 0.25 amps carry current cm5 - molded ultra mini-dyad - - 0.50 amps switching frequency cm5 - molded ultra mini-dyad - - 500 hz contact resistance cm5 - molded ultra mini-dyad - - 300 m ? (see detailed specifications for more information.) specifications all parameters are at 25 c unless otherwise stated. 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 5switching voltage max dc/peakac resistive v l - - 175 vdc switching current max dc/peakac resistive i l - - 250 mamps carry current max dc/peakac resistive i c - - 0.5 amps contact rating max dc/peakac resistive - - - 5 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 - 120 300 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 - 200 - - vdc/peak ac operate time, at nominal coil voltage, t op - - 0.4 ms including bounce 10hz square wave release time zener-diode suppression (3) t rel - - 0.1 ms environmental ratings storage temperature t a -40 - +125 ?c operating temperature t o -40 - +125 ?c soldering temperature - - - +265 ?c vibration 5hz - 200hz g - - 20 -gs shock 11 1ms, 1 / 2 sine wave s - - 30 gs shock - survivability 11 1ms, 1 / 2 sine wave s - - 500 gs (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 src devices. engineering for more details/ recommendations (5) 15 ampere turn minimum src devices 2 usa 1-866-src-8668 europe 32-89-328850 far east 886-2-2698-8422 www.srcdevices.com
cm5 mechanical dimensions dimensions mm inches molded ultra-mini dyad src devices 3 www.srcdevices.com usa 1-866-src-8668 europe 32-89-328850 far east 886-2-2698-8422
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