RHOPOINT 3602

3600 Series/Low Thermal EMF 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.
3600 SERIES FEATURES
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Low Thermal EMF: < 5 µV through < 0.5 µV with 50 nV stability.
Patented Low Thermal Design. Patent #4,084,142.
Low power coils to ensure low thermal EMF.
High Insulation Resistance - 1012 Ω
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
COTO TECHNOLOGY RHOPOINT COMPONENTS LTD Email: [email protected] Website: www.rhopoint.co.uk
3600 Series/Low Thermal EMF Reed Relays
Model Number
Parameters
THERMAL EMF
OPTIONS
COIL SPECS.
Nom. Coil Voltage
Coil Resistance
Operate Voltage
Release Voltage
Test Conditions
Units
Measured after 5 minutes
at nominal coil voltage
Refer to Reed Relay
Technical Section for Details
µV
3602
2 Form A
x36504
x36602
3 Form A
3 Form A
Differential
<5µV
<3µV
<1µV
<0.5µV
Differential
<5µV
<3µV
<1µV
<0.5µV
Differential
<5µV
<3µV
<1µV
<0.5µV
5
350
3.8
0.4
5
350
3.8
0.4
5
350
3.8
0.4
+/- 10%, 25° C
Must Operate by
Must Release by
VDC
Ω
VDC - Max.
VDC - Min.
Max DC/Peak AC Resist.
Max DC/Peak AC Resist.
Max DC/Peak AC Resist.
Max DC/Peak AC Resist.
Volts
Amps
Amps
Watts
150
0.25
1.5
5
150
0.25
1.5
5
150
0.25
1.5
5
Signal Level 1.0V, 1mA
x 10 Ops.
6
500
500
500
50mV, 10mA
Ω
0.100
0.100
0.100
0.5V, 50mA
at 100 Hz, 1.5 msec
Ω
0.200
0.200
0.200
Between all Isolated Pins
at 100V, 25°C, 40% RH
Shield Floating
Shield Guarding
Contacts Open
Shield & Coil Tied Common
Ω
pF
pF
pF
pF
x 10
1.2
0.2
x 10
1.2
0.2
x 10
1.2
0.2
2.5
2.5
2.5
2.5
2.5
2.5
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
Zener-Diode Suppression
3
msec.
0.1
0.1
0.1
CONTACT RATINGS
Switching Voltage
Switching Current
Carry Current
Contact Rating
1
Life Expectancy-Typical
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)
12
2000
9.0
1.0
12
12
2000
9.0
1.0
12
12
2000
9.0
1.0
12
Top View:
Dot stamped on top of relay refers to pin #1 location
Grid = .1"x.1" (2.54mm x 2.54mm)
Notes:
Environmental Ratings
1
Storage Temp: -35°C to +100°C;
Operating Temp: -20°C to +85°C
Solder Temp: 270°C max; 10 sec. max
The operate and release voltage and the
coil resistance are specified at 25°C.
These values vary by approximately 0.4%/°C
as the ambient temperature varies.
Vibration: 20 G’s to 2000 Hz; Shock: 50 G’s
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
RHOPOINT COMPONENTS LTD Holland Rd, Hurst Green, Oxted, Surrey, RH8 9AX,ENGLAND