KSC521G C&K Components, KSC521G Datasheet - Page 6

• Manufacturer Part Number: KSC521G
• Description: SWITCH TACT SPST-NO 160GF GW SMD
• Manufacturer: C&K Components
• Series: KSC5r

Specifications of KSC521G

• Circuit: SPST-NO
• Switch Function: Off-Mom
• Contact Rating @ Voltage: 0.05A @ 32VDC
• Actuator Type: Standard
• Mounting Type: Surface Mount
• Orientation: Vertical
• Outline: 6.20mm x 6.20mm
• Illumination: Non-Illuminated
• Operating Force: 160gf
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 401-1477-2; KSC521GTR; KSC521GTR; Y31C21666FP

Of course, as far particles are from different origins, several test according several types of pollution
were performed.
C&K
C&K components SAS - 1 rue Louis de la Verne B.P. 359 F-39105 Dole Cedex - FRANCE
Telephone :[phone] - Facsimile: [phone] – www.ck-components.com
Document subject to change without prior notice
Diffusion: no restriction
PCN07-09-KSC Rev.A – 14/11/07
Dust proof test:
Plastic burr test
components
o
o
o
o
Test method:
Results with standard contact:
Result with anti-particle contact:
Test method:
Particle type = White powder of magnesium silicate.
Particle size < 0.05mm
Quantity > 200 particles / switch
30 Switches tested by batch
30% of the switches are out of specification versus contact resistance.
90% of the switches present contact instability (bounces).
All the switches are in the specification versus contact resistance.
10% of the switches present contact instability (bounces).
Particle type = plastic burs
0.05mm > Particle size < 0.5mm
Quantity > 20 particles / switch
600
500
400
300
200
100
0
Boxplot of Contact Resistance with Talc inside the switch
Fig. 5 anti-particle contact with particle
Standard Contact
Current production
Fig. 6 Dust proof test results
Specification
Antiparticle Contact
Future production
With
remains enough contact area to
manage the electrical contact.
Product change notification
antiparticle
contact,
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