3500 Datasheet, PDF (1/2 Pages) Lumberg – RAST-2.5-Steckverbinder, Raster 2,5/5,0 mm

3500 SERIES/LOW THERMAL EMF REED RELAYS
3500 Series Low Thermal EMF Reed Relays
The 3500 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 high accuracy DVM’s, Multi-
plexers 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.
3500 Series Features
u Low Thermal EMF: < 10 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 - 10¹²Î©
u Control/Signal isolation of 1500 VDC
u High reliability, hermetically sealed contacts
u Form A, Dry or Hg Wetted contacts. High Dielectric Strength
u Epoxy coated steel shell provides magnetic shielding
u RoHS compliant (except for 3520)
1.20
(30.48)
.125
(3.17)
1.00
(25.4)
13
1
Bottom View
DIMENSIONS
in Inches (Millimeters)
.500
(12.7)
.485 MAX
(12.32)
.050
(1.27)
.026 DIA.
(0.66)
14
2
.200
(5.08)
.300
(7.62)
For Model
3501 & 3540
.500
(12.7)
.485 MAX
(12.32)
.050
(1.27)
.100
(2.54)
.100
(2.54)
For Model
3502, 3520 & 3541
Ordering Information
Part Number ^XXXX-XX-X1X
Model Number
3501 3502 3520 3540 3541
Shielding Options²
1=Electrostatic Shield
Coil Voltage
05=5 volts
12=12 volts
Thermal EMF Rating
See available ratings in specification table.
1=<10µV Hg Wetted Only
9=<5µV Dry or Wetted
8=<3µV Dry Only
7=<1µV Dry Only
5=<0.5µV Dry Only
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