UM-0018 Ultra-miniature Reed Switch
5.0 mm and 7.0 mm Glass, Form A, Center Contact
All dimensions in mm
These highly sensitive, form A reed switches are designed for low power, high speed switching applications,
where there is a size restriction. The 5 mm glass version is built for use in very compact applications, and
the 7 mm glass version is built for lower contact resistance, and can switch higher loads.
Formations Available for 5.0 mm
Formations Available for 7.0 mm
Cropped
SMD
Welded
Soldered
Goal-post
L-formed
Applications
This reed switch is suitable for use in the following applications and many others: dentists drills, reed
relays, pacemakers, shock sensors, automobile crash sensors, vane sensors, LEGO sensors, musical
greeting cards...
Electrical
Sub code
Glass Length
Operate Range
Release Range
Contact Rating (max)
Switching Current (max)
Carry Current (max)
Switching Voltage (max)
Switching Voltage (max)
Breakdown Voltage
Initial Contact Resistance (max)
Insulation Resistance (min)
Capacitance (min)
M
5.0
H
7.0
7 – 20
3 – 18
10.0
0.5
0.5
100
70
150
200
10 9
0.2
mm
AT
AT
W/ VA
A
A
VDC
VAC
VDC
m
7 – 20
3 – 18
5.0
0.35
0.5
100
70
150
200
10 9
0.2
pF
Ordering Code
UM-0018-(Sub Code)-(Start Operate AT)-
(Finish Operate AT)
Miscellaneous
Operate Time (max)
Bounce Time (max)
Release Time (max)
Resonance Frequency
Operating Frequency
Operating Temperature
Test Coil
ms
ms
ms
Hz
Hz
°C
0.35
0.3
0.1
Example UM-0018-M-15-18
Denotes 5 mm glass length, in 15-18 Operate
AT band.
>2000
500
-40 to +120
717 102 003
Sn (Pb free)
30
Other Configurations Available
Dynamic contact resistance limit, Higher insulation
resistance, Special release limits, Gold plates leads
Lead out plating
Shock Resistance
Vibration (10-2000Hz)
g
g
20
Please refer to our reed switch usage notes
Due to continual improvement, specifications are subject to change without notice
www.reed-sensor.com
27 August 2008
Reed Relays and Electronics India Limited info@reed-switch.com Tel 91-44-6528-4022
RRE [ Reed Relays and Electronics ]