3600 SERIES/LOW THERMAL EMF REED RELAYS
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
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Low Thermal EMF: < 5 µV through < 0.5 µV with 50 nV stability
u
Patented Low Thermal Design. U.S. Patent #4,084,142
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Low power coils to ensure low thermal EMF
u
High Insulation Resistance - 10
12
Ω
u
Control/Signal isolation of 1500 VDC
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High speed switching compared to electromechanical relays
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High reliability, hermetically sealed contacts
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Various Form A contacts. High Dielectric Strength
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Epoxy coated steel shell provides magnetic shielding
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Electrostatic shield standard for reducing capacitive coupling
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RoHS compliant
DIMENSIONS
in Inches (Millimeters)
1.20
(30.48)
.660
(16.76)
.475
(12.06)
.050
(1.27)
1.000
(25.4)
.100
.115 MIN
(2.92)
(0.66)
10
8
6
4
2
Bottom View
.026 DIA.
9
7
5
3
1
Ordering Information
Part Number
Model Number
3602 3650 3660
Coil Voltage
05=5 volts
12=12 volts
XXXX-XX-X2
Thermal EMF Rating
See available ratings in specification table.
9=<5µV
8=<3µV
7=<1µV
5=<0.5µV
07082013
tel: (401) 943.2686
|
fax: (401) 942.0920
MODEL NUMBER
Parameters
Thermal EMF Options
3602
Test Conditions
Measured after
5 minutes at nominal
coil voltage
3650
3
3 Form A
Differential
<5µV
<3µV
<1µV
<0.5µV
5 12
350 2000
3.8 9.0
0.4 1.0
150
0.25
1.5
5
500
0.100
0.200
3660
2
3 Form A
Differential
<5µV
<3µV
<1µV
<0.5µV
5 12
350 2000
3.8 9.0
0.4 1.0
150
0.25
1.5
5
500
0.100
0.200
Units
µV
2 Form A
Individual
<5µV
<3µV
<1µV
<0.5µV
5 12
350 2000
3.8 9.0
0.4 1.0
150
0.25
1.5
5
500
0.100
0.200
(Refer to Reed Relay
Technical Section for details)
COIL SPECS.
Nom. Coil Voltage
Coil Resistance
Operate Voltage
Release Voltage
+/- 10%, 25° C
Must Operate by
Must Release by
Max DC/Peak AC Resist.
Max DC/Peak AC Resist.
Max DC/Peak AC Resist.
Max DC/Peak AC Resist.
Signal Level 1.0V, 10mA
50mV, 10mA
0.5V, 50mA
at 100 Hz, 1.5 msec
Between all Isolated Pins
at 100V, 25°C, 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
VDC
Ω
VDC - Max.
VDC - Min.
Volts
Amps
Amps
Watts
x 10
6
Ops.
Ω
Ω
CONTACT RATINGS
Switching Voltage
Switching Current
Carry Current
Contact Rating
Life Expectancy-Typical
1
Static Contact
Resistance (max. init.)
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
Ω
pF
pF
pF
pF
VDC/peak AC
VDC/peak AC
VDC/peak AC
msec.
msec.
Top View:
Grid = .1”x.1” (2.54mm x 2.54mm)
10
12
1.2
0.2
2.5
2.5
250
1000
1500
0.75
0.1
9 7 5 3 1
10
12
1.2
0.2
2.5
2.5
250
1000
1500
0.75
0.1
9 7 5 3 1
10
12
1.2
0.2
2.5
2.5
250
1000
1500
0.75
0.1
9 7 5 3 1
Notes:
1
2
3
Consult factory for life expectancy at other switching loads.
Model 3660: Reed switch between pins #9 & #10 is not low thermal and is tied in
common with the electrostatic shield.
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.
10 8 6 4 2
10 8 6 4 2
10 8 6 4 2
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
07082013
For most recent data visit www.cotorelay.com
COTO TECHNOLOGY, INC.
Analog electronics
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