GR501 Datasheet, PDF (1/3 Pages) Meder Electronic – Reed Switch

Product Solutions
A Global Leader in the Design, Development, and
Manufacture of Sensors and Magnetic Components
wwwwww..ssttaannddeexxmmeeddeerr..ccoomm
GR501 Reed Switch
REACH & RoHS Compliant
Contact Information:
Standex-Meder Electronics
World Headquarters
4538 Camberwell Road
Cincinnati, OH 45209 USA
Standex Americas (OH)
+1.866.STANDEX
(+1.866.782.6339)
[e-mail]
Meder Americas (MA)
+1.800.870.5385
[e-mail]
Standex-Meder Asia (Shanghai)
+86.21.37820625
[e-mail]
Standex-Meder Europe (Germany)
+49.7731.8399.0
[e-mail]
Professional grade sub miniature reed switch with rhodium contacts
Designed for applications where the available magnetic field is very low
Useful for "wide-gap" security system applications and other magnetic systems requiring
long operating distances with permanent magnets
Physical Characteristics
A Glass Length (Max.)
B Overall Length (Max.)
C Glass Diameter (Max.)
D Lead Diameter (Nom.)
12.7 mm
54.0 mm
2.3 mm
0.45 mm
Electrical Characteristics
Contact Arrangement
Form A (SPST), Center Gap
Contact Material
Power Rating ¹
Rhodium
10VA maximum
Switching Current (Max.)
0.5 Amp. DC, 0.5 Amp. AC
Carry Current (Max.)
0.75 Amp. DC, 0.75 Amp. AC
Switching Voltage (Max.)
Breakdown Voltage (Min. @20AT) ²
Contact Resistance ³
Insulation Resistance (Min.)
100 VDC, 125 VAC
200 Volts DC
150 Milliohms
10¹² ohms
Contact Capacitance (pf Max.)
0.3 pf
1. The specification for VA rating may sometimes be exceeded for less sensitive (higher AT) switches, and should be
decreased for very sensitive (lower AT) switches. Standex-Meder Electronics will run life tests specific to a customer’s
load upon request.
2. Breakdown voltage is measured in the presence of a radioactive ionising source. Switch leakage current is limited to
100 microamperes
3. Contact resistance measurements are made at 10ma from a 1-volt source, with 50% overdrive, using a 4-wire (Kelvin)
measuring system. Contact probes are located on 43 mm centres.
Minimum Switching Life with Standard Test Loads, using 20AT switch
Voltage
5 VDC
10 VDC
12 VDC
24 VDC 100 VDC
Current
Life
2 mA
100 x 10⁶
1A
0.5 x 10⁶
10 mA
10 x 10⁶
10 mA
2 x 10⁶
100 mA
0.5 x 10⁶
Note: End of life is defined as contact resistance exceeding one ohm and/or failure to operate.
125 VAC
80 mA
0.5 x 10⁶