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Technical content
in Inches (Millimeters)
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 representa - tive or Coto’s Factory.
2970 Series Features
u Coaxial shield for 50 Ω 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 +125ºC u RoHS compliant
2970 SERIES REED RELAYS FOR -40 ºC TO 125ºC
Ordering Information
2974 (Form 1A) 2971 (Form 1C) Coil Voltage 05=5 volts 12=12 volts 4321 5786 (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: -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 MODEL NUMBER 29742 29712 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 Ω 230 1500 230 1500 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-Typical1 Signal Level 1.0V, 10mA x 106 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 RELAY SPECIFICATIONS 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 Release Time - Typical msec. 0.1 2.0 Top View: Dot stamped on top of relay refers to pin #1 location Grid = .1”x.1” (2.54mm x 2.54mm) 8 1