The MQS-4 is one of the Toneluck waterproof micro switch series, which is included the MQS-41, MQS-42, and MQS-43 series.

MQS-4 Waterproof Micro Switch Features

The ratings of MQS-4 are “2A/12VDC, 40T85, 100000 cycles; 2A/24VDC, 40T85, 50000 cycles; 10mA/12VDC, 40T85, 250000 cycles; 0.1mA/250VAC, 40T85, 50000 cycles; 0.5mA/250VAC, 40T85, 10000 cycles”.  Generally, it will be used in automotive parts, like the car door and bonnet lock. As well as can be used in power tools, like the electric screwdriver, grinder, Gas nail gun, and so on.

Meanwhile, the MQS-42 and MQS-43 series are sealed structures with IP67 waterproof functions, which means it can use in the wet environment. All in all, the Toneluck MQS-4 series are high-quality and famous in the automotive industry.  And Tonelcuk also supplies our microswitch to world-famous customers in automotive, like Magna, Kiekert, Brose, U-shin, Inteva, and so on.

MQS-4 Waterproof Micro Switch Display

MQS-4 Waterproof Micro Switch Ordering Guide

Series Electrical rating Location Pin Terminal Type Lever Type Contact Plating Version
MQS-41 1= 2A/12VDC,SPDT A = Side A, 1.5mm A=Angled PCB pins, side A See the catalog Ag=Sliver Alloy 01:Standard Version
MQS-42 2= 10mA/12VDC,SPDT B = Side B, 1.5mm B=Angled PCB pins, side B Custom-made:03,04,etc.
MQS-43: second molding with wire 3= 0.1A/250VAC,SPDT C = Both Sides, 1.5mm C=Straight PCB pins
4= 2A/12VDC,SPST-NO D = Side A, 2.5mm D=Straight crimped PCB pins
5= 10mA/12VDC,SPST-NO E = Side B, 2.5mm E=Solder terminal
6= 0.1A/250VAC,SPST-NO F = Both Sides, 2.5mm F=Terminal B
7= 2A/12VDC,SPST-NC G = Side A,5mm H=Angled Solder terminal,Side B
8= 10mA/12VDC,SPST-NC H = Side B, 5mm J=Interlock terminal,side A
9= 0.1A/250VAC,SPST-NC J = Both Sides, 5mm K= Interlock terminal,side B
N = No Position Pin M=Short Interlock terminal,side B
M=Side A, 2.5mm+Side B(single), 0.8mm P=Soder-free Clamping terminal
W=Wires Specification: eg.W1,W2,W3,etc

MQS-4 Waterproof Micro Switch Specification

Series Actuation Side IP Protection Terminals Side IP Protection Operation Force Operation Position
MQS-41 IP 67 IP00 50 – 150 gf 6.15±0.3mm
MQS-42 IP 67 IP 00 50 – 200 gf 9.40±0.3mm
MQS-43 IP 67 IP 67 50 – 200 gf9 9.40±0.3mm
Electrical rating 2A/12VDC, 40T85, 100000 cycles
2A/24VDC, 40T85, 50000 cycles
10mA/12VDC, 40T85, 250000 cycles
0.1mA/250VAC, 40T85, 50000 cycles
0.5mA/250VAC, 40T85, 10000 cycles
Mechanical Life 1,000,000 cycles
Contact Resistance 50mΩ Max. (initial)
Insulation Resistance 100 MΩ Min.
Dielectric Strength 500VAC for 60 ± 5 sec.
Housing UL94 V-0
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