2970 SERIES REED RELAYS FOR -40ºC TO 125ºC Wide Operating Range -40ºC to +125ºC 2970 Series Reed Relays Ideally suited to the needs of Automated Test Equipment and Instrumentation. The 2970 series offers a 1 Form A and 1 Form C coaxial relay for special -40ºC to +125°C testing environments. If your requirements differ, please consult your local representative or Coto’s Factory. 2970 Series Features u Coaxial shield for 50Ω 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 +125º C u RoHS compliant DIMENSIONS in Inches (Millimeters) .250 (6.35) .820 (20.82) .280 (7.11) .500 (12.7) .125 (3.18) .700 (17.78) 1 2 3 4 8 7 6 5 .020 (0.51) .100 (2.54) .022 Dia. pins (0.56) Bottom View Ordering Information Part Number 297X-XX-00 Model Number 2974 (Form 1A) Coil Voltage 2971 (Form 1C) 05=5 volts 12=12 volts 24042014 tel: (401) 943.2686 | fax: (401) 942.0920 MODEL NUMBER PARAMETERS COIL SPECS. TEST CONDITIONS Nom. Coil Voltage UNITS 29742 29712 1 FORM A 1 FORM C VDC 5 12 5 12 +/- 10%, 25° C Ω 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 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 Max DC/Peak AC Resist. Watts 10 3 Coil Resistance CONTACT RATINGS Contact Rating Signal Level 1.0V, 10mA x 10 Ops. 500 100 Static Contact Resistance (max. init.) 50mV, 10mA Ω 0.100 0.150 Dynamic Contact Resistance (max. init.) 0.5V, 50mA at 100 Hz, 1.5 msec Ω 0.200 0.200 Insulation Resistance (minimum) Between all Isolated Pins at 100V, 25°C, 40% RH Ω 1012 1010 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 msec. 0.1 2.0 Life Expectancy-Typical 1 6 RELAY SPECIFICATIONS Release Time - Typical Top View: Dot stamped on top of relay refers to pin #1 location Grid = .1”x.1” (2.54mm x 2.54mm) 5 6 4 3 5 6 4 3 7 8 2 1 7 8 2 1 Notes: 1 2 Consult factory for life expectancy at other switching loads. Model 2974 & 2971, pins #6 & #7 are tied to coaxial shield. Environmental Ratings: Storage Temp: -40°C to +125°C; Operating Temp: -40°C to +125°C; Solder Temp: 270°C max; 10 sec. max All electrical parameters measured at 25°C unless otherwise specified. Vibration: 20 G’s to 2000 Hz; Shock: 50 G’s 24042014 For most recent data visit www.cotorelay.com COTO TECHNOLOGY, INC.