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3600 Series/Low Thermal EMF Reed Relays
THERMAL REED RELAYS L OW 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. Refer to page 41 for Thermal EMF test methods.
SERIES FEATURES 3600 SERIES FEATURES
u u u u u u u u u u
Low Thermal EMF: < 5 V through < 0.5 V with 50 nV stability. Patented Low Thermal Design. Patent #4,084,142. Low power coils to ensure low thermal EMF. High Insulation Resistance - 1012 Control/Signal isolation of 1500 VDC High speed switching compared to electromechanical relays. High reliability, hermetically sealed contacts. Various Form A contacts. High Dielectric Strength. Epoxy coated steel shell provides magnetic shielding. Electrostatic shield for reducing capacitive coupling.
Dimensions in Inches (Millimeters)
Bottom View
14
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3600 Series/Low Thermal EMF Reed Relays
Model Number Parameters
THERMAL EMF OPTIONS
Test Conditions
Measured after 5 minutes at nominal coil voltage Refer to Reed Relay Technical Section for Details
Units
V
3602 2 Form A
Differential <5V <3V <1V <0.5V 5 350 3.8 0.4 12 2000 9.0 1.0
x36504 3 Form A
Differential <5V <3V <1V <0.5V 5 350 3.8 0.4 12 2000 9.0 1.0
x36602 3 Form A
Differential <5V <3V <1V <0.5V 5 350 3.8 0.4 12 2000 9.0 1.0
COIL SPECS. Nom. Coil Voltage Coil Resistance Operate Voltage Release Voltage CONTACT RATINGS Switching Voltage Switching Current Carry Current Contact Rating Life Expectancy-Typical Static Contact Resistance (max. init.)
1
+/- 10%, 25 C Must Operate by Must Release by
VDC VDC - Max. VDC - Min.
Max DC/Peak AC Resist. Max DC/Peak AC Resist. Max DC/Peak AC Resist. Max DC/Peak AC Resist. Signal Level 1.0V, 1mA 50mV, 10mA 0.5V, 50mA at 100 Hz, 1.5 msec
Volts Amps Amps Watts x 10 Ops.
6
150 0.25 1.5 5 500 0.100 0.200
150 0.25 1.5 5 500 0.100 0.200
150 0.25 1.5 5 500 0.100 0.200
Dynamic Contact Resistance (max. init.) RELAY SPECIFICATIONS Insulation Resistance (minimum) Capacitance - Typical Across Open Contacts Contact to Shield Dielectric Strength (minimum) Operate Time - including bounce - Typical Release Time - Typical
Between all Isolated Pins at 100V, 25C, 40% RH Shield Floating Shield Guarding Contacts Open Shield & Coil Tied Common Between Contacts Contacts to Shield Contacts/Shield to Coil At Nominal Coil Voltage, 30 Hz Square Wave Zener-Diode Suppression
3
pF pF pF pF VDC/peak AC VDC/peak AC VDC/peak AC msec. msec.
x 10 1.2 0.2
12
x 10 1.2 0.2
12
x 10 1.2 0.2
12
2.5 2.5 250 1000 1500 0.75 0.1
2.5 2.5 250 1000 1500 0.75 0.1
2.5 2.5 250 1000 1500 0.75 0.1
Top View: Dot stamped on top of relay refers to pin #1 location Grid = .1"x.1" (2.54mm x 2.54mm)
Notes:
1
Environmental Ratings
Storage Temp: -35C to +100C; Operating Temp: -20C to +85C Solder Temp: 270C max; 10 sec. max The operate and release voltage and the coil resistance are specified at 25C. These values vary by approximately 0.4%/C as the ambient temperature varies. Vibration: 20 G's to 2000 Hz; Shock: 50 G's 15
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 Consists of 20V Zener-diode and 1N4002 diode in series, connected in parallel with coil. 4 Model 3650: Reed switch between pins #7 & #8 is not low thermal and is not tied in common with the electrostatic shield. Pin numbers for reference only.
COTO TECHNOLOGY 55 Dupont Drive, Providence, RI 02907-3105 / (401) 943-2686 Fax (401) 942-0920

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