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Technical content

in Inches (Millimeters)

3600 Series Low Thermal EMF Reed Relays

The 3600 Series is ideally suited to the needs of Instrumentation, Data Acquisition, and Process Control . The specification tables allow you to select the appropriate relay for your particular application . Recommended for use in Scanners, Multiplexers and Digital or Analog Multipoint Recorders . If your requirements differ from the selection options, please consult Coto’s Factory to discuss a custom reed relay .

3600 Series Features

u Low Thermal EMF: < 5 µV through < 0 .5 µV with 50 nV stability u Patented Low Thermal Design . U .S . Patent #4,084,142 u Low power coils to ensure low thermal EMF u High Insulation Resistance - 1012Ω u Control/Signal isolation of 1500 VDC u High speed switching compared to electromechanical relays u High reliability, hermetically sealed contacts u Various Form A contacts . High Dielectric Strength u Epoxy coated steel shell provides magnetic shielding u Electrostatic shield standard for reducing capacitive coupling u RoHS compliant

3600 SERIES/LOW THERMAL EMF REED RELAYS

1.20 1.000 .660 .475 .050 .115 MIN .026 DIA. (30.48) (16.76) (25.4) (0.66) (1.27) (12.06) (2.92) .100

Ordering Information

05=5 volts 12=12 volts Thermal EMF Rating See available ratings in specification table. 9=<5µV 8=<3µV 7=<1µV 5=<0.5µV Bottom View tel: (401) 943.2686 | fax: (401) 942.0920 22 | page

MODEL NUMBER 3602 36503 36602 Parameters Test Conditions Units 2 Form A 3 Form A 3 Form A Thermal EMF Options Measured after 5 minutes at nominal coil voltage (Refer to Reed Relay Technical Section for details) µV Individual <5µV <3µV <1µV <0.5µV Differential <5µV <3µV <1µV <0.5µV Differential <5µV <3µV <1µV <0.5µV COIL SPECS. Nom. Coil Voltage VDC 5 12 5 12 5 12 Coil Resistance +/- 10%, 25° C Ω 350 2000 350 2000 350 2000 CONTACT RATINGS Switching Voltage Max DC/Peak AC Resist. Volts 150 150 150 Switching Current Max DC/Peak AC Resist. Amps 0.25 0.25 0.25 Carry Current Max DC/Peak AC Resist. Amps 1.5 1.5 1.5 Contact Rating Max DC/Peak AC Resist. Watts 5 5 5 Life Expectancy-Typical1 Signal Level 1.0V, 10mA x 106 Ops. 500 500 500 Static Contact Dynamic Contact Resistance (max. init.) 0.5V, 50mA at 100 Hz, 1.5 msec Ω 0.200 0.200 0.200 RELAY SPECIFICATIONS Insulation Resistance (minimum) Between all Isolated Pins at 100V, 25°C, 40% RH Ω 1012 1012 1012 Capacitance - Typical Across Open Contacts Contact to Shield Shield Floating Shield Guarding Contacts Open Shield & Coil Tied Common pF pF pF pF 1.2 0.2 2.5 2.5 1.2 0.2 2.5 2.5 1.2 0.2 2.5 2.5 Dielectric Strength (minimum) Between Contacts Contacts to Shield Contacts/Shield to Coil VDC/peak AC VDC/peak AC VDC/peak AC 250 1000 1500 250 1000 1500 250 1000 1500 Operate Time - including bounce - Typical At Nominal Coil Voltage, 30 Hz Square Wave msec. 0.75 0.75 0.75 Release Time - Typical msec. 0.1 0.1 0.1 Top View: Grid = .1”x.1” (2.54mm x 2.54mm) Notes: 1 Consult factory for life expectancy at other switching loads .

2 Model 3660: Reed switch between pins #9 & #10 is not low thermal and is tied in

common with the electrostatic shield .

3 Model 3650: Reed switch between pins #3 & #4 is not low thermal and is not tied

in common with the electrostatic shield . Pin numbers for reference only . Environmental Ratings: Storage Temp: -35°C to +100°C; Operating Temp: -20°C to +85°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 810 810 810 COTO TECHNOLOGY, INC.For most recent data visit www.cotorelay.com page | 23