A Global Leader in the Design, Development, and
Manufacture of Sensor and Magnetic Components
KSK-1C90U
Reed Switches
Features: SPDT Changeover, Miniature
Applications: Door Detector, Tampering Switch, Counter & Others
Markets: Automotive, Test & Measurement, Safety & Others
Series Datasheet – KSK-1C90U Reed Switches www.standexmeder.com
Part
Description: K S K - 1 C 90U XX XX
Contact QTY Contact Form Switch Model Pull-In Excitation
(AT-Range)
1 C (SPDT-Changeover) 90F 15 - 45
Contact Data
Unit
Rated Power
(max.)
Any
DC combination of V&A not to exceed their individual max.’s 10 W
Switching Voltage
(max.)
DC or
peak AC 175 V
Switching Current
(max.)
DC
or peak AC 0.5 A
Carry Current
(max.)
DC
or peak AC 1.0 A
Contact Resistance
(max.)
@
0.5V & 10mA 150 mOhm
Breakdown
Voltage (min.)
DC
or peak AC 200 V
Operating Time (max.)
Incl. Bounce; Measured with 40% Overdrive
0.7 ms
Release
Time (max.)
Measured
with no Coil Excitation 1.5 ms
Test
Coil KMS-01
Insulation
Resistance (min.)
RH <
45%, 100 V Test Voltage 109 Ohm
Capacitance (typ.)
@ 10kHz
across open Switch 1.0 pF
Modifications in the sense of technical progress are reserved.
Version 01
27.01.2015
USA: +1.866.782.6339 │ salesusa@standexmeder.com
Europe: +49.7731.8399.0 │ info@standexmeder.com
Asia: +86.21.37820625 │ salesasia@standexmeder.com
KSK
-1C90U Reed Switch
Life Test Data
*Load increase reduces life
expectancy of Reed Switches
A Global Leader in the Design, Development, and
Manufacture of Sensor and Magnetic Components
Series Datasheet – KSK-1C90U Reed Switches www.standexmeder.com
Environmental
Data Unit
Shock Resistance (max.)
1/2 sine wave duration 11ms
50 g
Vibration
Resistance (max.) 20 g
Operating Temperature
-40 to 130 °C
Storage Temperature
-55 to 130 °C
Soldering
Temperature (max.)
5 sec. max.
260 °C
Dimensions
(mm)
Overall
Length (max.) 56.1
Glass
Length (max.) 14.0
Glass
Dia (max.) 2.54
Lead Dia. (max.)
0.5
& Assembly Instructions
Use proper lead clamping or heat sinking techniques to
prevent mechanical and/or heat stress to the glass seal
during bending, cutting, soldering, and welding
Mechanical shock as the result of dropping the reed switch
typically from a distance of greater than 12” may change it’s
magnetic sensitivity and/or destroy the switch
Any form of modification to the switch leads will alter it’s
magnetic sensitivity
Series resistor recommended for >5m cable length
Glossary Contact Material
Form
A
NO = Normally Open Contacts
SPST = Single Pole Single
Throw
Form B
NC = Normally Closed
Contacts
SPST
= Single Pole Single Throw
Form C
Changeover
SPDT = Single Pole Double
Throw
Modifications in the sense of technical progress are reserved.
Version 01
27.01.2015
USA: +1.866.782.6339 │ salesusa@standexmeder.com
Europe: +49.7731.8399.0 │ info@standexmeder.com
Asia: +86.21.37820625 │ salesasia@standexmeder.com