dimensions in inches (millimeters) 2970 series reed relays ideally suited to the needs of automated test equipment and instrumentation. te 2970 series ofers a 1 form a and 1 form c coaxial relay for special -40oc to +125c testing environments. if your requirements difer, please consult your local representa - tive or cotos factory. 2970 series features u coaxial shield for 50 impedance u high insulation resistance u hermetically sealed contacts for long life u epoxy coated steel shell provides magnetic shielding u wide operating temperature range -40oc to +125 o c u rohs compliant 2970 series reed relays for -40 o c to 125oc ordering information part number 297x-xx-00 model number 2974 (form 1a) 2971 (form 1c) coil v oltage 05=5 volts 12=12 volts 4 3 2 1 5 7 86 (2.54) (7.11) (17.78) (12.7) (20.82) (0.56) .022 dia. pins (0.51) (3.18) .100 (6.35) .820 .500 .700 .125 .250 .020 .280 bottom view tel: (401) 943.2686 | fax: (401) 942.0920 22 | page 24042014 wide operating range -40oc to +125oc
coto technology, inc. for most recent data visit www.cotorelay.com page | 23 24042014 notes: 1 consult factory for life expectancy at other switching loads. 2 model 2974 & 2971, pins #6 & #7 are tied to coaxial shield. environmental ratings: storage temp: -40c to + 125c; operating temp: -40c to + 125c; solder temp: 270c max; 10 sec. max all electrical parameters measured at 25c unless otherwise specifed. vibration: 20 gs to 2000 hz; shock: 50 gs model number 2974 2 2971 2 parameters test conditions units 1 form a 1 form c coil specs. nom. coil voltage vdc 5 12 5 12 coil resistance +/- 10%, 25 c 230 1500 230 1500 operate voltage must operate by vdc - max. 2.5 6.7 2.5 6.7 release voltage must release by vdc - min. 0.4 1.0 0.4 1.0 contact ratings switching voltage max dc/peak ac resist. volts 200 150 switching current max dc/peak ac resist. amps 0.5 0.25 carry current max dc/peak ac resist. amps 1.5 1.0 contact rating max dc/peak ac resist. watts 10 3 life expectancy-typical 1 signal level 1.0v, 10ma x 10 6 ops. 500 100 static contact resistance (max. init.) 50mv, 10ma 0.100 0.150 dynamic contact resistance (max. init.) 0.5v, 50ma at 100 hz, 1.5 msec 0.200 0.200 relay specifications insulation resistance (minimum) between all isolated pins at 100v, 25c, 40% rh 10 12 10 10 capacitance - typical across open contacts shield floating shield guarding pf pf 1.0 0.3 2.0 1.0 dielectric strength (minimum) between contacts contacts to shield contacts/shield to coil vdc/peak ac vdc/peak ac vdc/peak ac 350 350 1500 200 200 1500 operate time - including bounce - typical at nominal coil voltage, 30 hz square wave msec. 0.5 1.0 release time - typical msec. 0.1 2.0 top view: dot stamped on top of relay refers to pin #1 location grid = .1x.1 (2.54mm x 2.54mm) 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8
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