42 coto technology (usa) tel: (401) 943-2686 / fax (401) 942-0920 (europe) tel: +31-45-5439343 / fax +31-45-5427216 B40 4-channel rf relays ball grid array 4-channel relays the B40 is four independent form a channels in one quad package. coto?s ball grid array (bga) construction offers a breakthrough in reed relay performance. this patented technology 1 allows for shorter rf paths in a controlled 50 ? environment to minimize signal attentuation. the designer is now able to switch or pass signals with wider bandwidth and faster rise time than alternative technologies. this is particularly important in mixed signal ic testers. this 4-in-one bga packaging allows relays to be integrated easily on boards designed for surface mount processing. series features applications bga surface mount ic testers ability to pass ghz signals in-line relay testers rise time < 40 sec memory testers 50 ? characteristic impedance mixed signal testers low capacitance high bandpass applications patented design 1 dimensions in inches (millimeters) notes: 1 protected by one or more of the following us patents: 6025768, 6052045, 6294971, 6683518, re38381 and other foreign patents. top view top view top view
43 for most recent data, consult the coto technology website: www.cotorelay.com e-mail: info@cotorelay.com B40 4-channel rf relays notes: 1 all parameters specified per eia/narm standards for dry reed relays, # rs-421 and rs-436, if a suitable parametric standard exists. 2 unless otherwise noted, all parameters are specified at 25c and 40% rh. 3 life expectancies based on characteristic life (63.2% failure) calculated from the 2-parameter weibull distribution. contact resistance >2.0 ? defines end of life. 4 frequency at which the difference between output and input signal amplitude exceeds -3db. (direct wired using 50 ? coaxial cable.) 5 maximum increase in operate voltage for any channel when all channel coils are driven at nominal coil voltage and with the same drive polarity. environmental ratings: storage temperature: -35c to + 100c. operating temperature: -20c to + 85c. vibration: sinusoidal vibration with an amplitude of 10g over a 10hz to 2000hz frequency range shall not cause a closed channel activated at the nominal coil voltage to open, not an open channel to close. max soldering temperature: 226c (438f) max for 1 minute dwell time. temperature measured at a relay ball termination. B40 te s t pa ra met er s c o nd i t io ns 1,2 min typ max units coil resistance 49.5 55.0 60.5 ? nominal voltage 3.3v coil 3.3 4.0 volts dc must operate voltage 2.4 volts dc must release voltage B40-0002 0.4 volts dc coil resistance 149.4 166.0 182.6 ? n om in al vol t a ge 5 v co il 5 .0 6 .0 vol t s dc must operate voltage 3.8 volts dc must release voltage B40-0003 0.4 volts dc switching voltage max dc/peak ac 125 volts switching current 0.25 amps carry current (continuous) switch and shield 0.5 amps contact rating (resistive load) resistive load 3.0 watts life expectancy signal switching 3 1vdc / 10ma 1000 x 10 6 ops resistive load 3 12vdc / 10ma 1 x 10 6 ops other load conditions 3 consult factory static contact resistance (initial) 0.05vdc / 10ma 0.125 ? dynamic contact resistance (initial) 0.5v / 50ma 100 hz, 1.5 msec 0.150 ? insulation res all isolated pins 100vdc 10 ! 10 10 12 ? capacitance across contacts shield guarding 0.2 pf capacitance open contact to coil shield guarding 0.3 pf capacitance closed contact to coil shield guarding 0.5 pf operate time (including bounce) nominal voltage coil drive @ 30 hz, 100 200 sec release time (si diode damped) square wave 30 50 sec rf insertion loss 4 -3 db roll-off frequency 11.0 ghz signal rise time (10% - 90%) corrected for measurement 40 psec system response time magnetic interaction 5 between adjacent channels 16 % v ( dc/pk ac ) v ( dc/pk ac ) v (dc/pk ac) across contacts contact to coil contact to shield dielectric strength 100 a 100 a 100 a 150 1000 1000
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