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KMR4 Series
Microminiature SMT Top Actuated

Tactile KMR4 product image Tactile KMR4 product image Tactile KMR4 product image
Tactile KMR4 product image
Tactile KMR4 product image
Tactile KMR4 product image

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The KMR4 series microminiature SMT top actuated switch from C&K has ultra-low current capabilities and is ideal for industrial, medical and automotive applications. It is a long-lasting switch with an excellent tactile feel, even when used in the harshest environments.

Features and Benefits

  • Ultra low current capabilities
  • Excellent tactile feel
  • Long Life version

Typical Applications

  • Industrial electronics
  • Medical equipment
  • Automotive

Specifications

  • Solderability:

    Infrared Reflow Soldering in accordance with IEC61760-1

  • Operating Temperature:

    -40°C to 85°C (125°C for gold version)

  • Electrical Life:

    between 100,000 and 300,000 cycles

  • Contact Rating:

    10mA (Gold); 50mA (Silver)

  • Contact Resistance:

    < 100 milliohms

  • Insulation Resistance:

    > 1,000 megohms

  • Dielectric Strength:

    > 250 Vrms

= Most Common

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Part Number
KMR431NGLFS
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KMR441GULCLFS
KMR441NGLFS
KMR441NGULCLFS
KMR442GLFS
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KMR442NGLFS
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KMR423GLFG 
Current Rating Circuit Mounting Type Sealing Illumination Switch Function Electrical Life Cycles Actuator Type Actuator Height off PCB, from Pins Actuator Orientation Termination Style Footprint Illumination Voltage (Nominal) Illumination Type, Color Operating Force Additional Features Packaging
50mA @ 32VDC SPST-NO Surface Mount Sealed - IP40 No/None Off-Mom 100,000 Standard 2.50mm Top Actuated Gull Wing 4.60mm x 2.80mm 300gf Tape & Reel
50mA @ 32VDC SPST-NO Surface Mount Sealed - IP40 No/None Off-Mom 100,000 Standard 2.50mm Top Actuated Gull Wing 4.60mm x 2.80mm 200gf Tape & Reel
50mA @ 32VDC SPST-NO Surface Mount Sealed - IP40 No/None Off-Mom 100,000 Standard 2.50mm Top Actuated Gull Wing 4.60mm x 2.80mm 400gf Grounding Pin Tape & Reel
1µA @ 1,8VDC SPST-NO Surface Mount Sealed - IP40 No/None Off-Mom 300,000 Standard 2.50mm Top Actuated Gull Wing 4.60mm x 2.80mm 300gf Tape & Reel
50mA @ 32VDC SPST-NO Surface Mount Sealed - IP40 No/None Off-Mom 100,000 Standard 2.50mm Top Actuated Gull Wing 4.60mm x 2.80mm 200gf Grounding Pin Tape & Reel
1µA @ 1,8VDC SPST-NO Surface Mount Sealed - IP40 No/None Off-Mom 100,000 Standard 2.50mm Top Actuated Gull Wing 4.60mm x 2.80mm 200gf Grounding Pin Tape & Reel
1µA @ 1,8VDC SPST-NO Surface Mount Sealed - IP40 No/None Off-Mom 100,000 Standard 2.50mm Top Actuated Gull Wing 4.60mm x 2.80mm 300gf Grounding Pin Tape & Reel
10mA @ 32VDC SPST-NO Surface Mount Sealed - IP40 No/None Off-Mom 100,000 Standard 2.50mm Top Actuated Gull Wing 4.60mm x 2.80mm 300gf Tape & Reel
1µA @ 1,8VDC SPST-NO Surface Mount Sealed - IP40 No/None Off-Mom 100,000 Standard 2.50mm Top Actuated Gull Wing 4.60mm x 2.80mm 300gf Tape & Reel
10mA @ 32VDC SPST-NO Surface Mount Sealed - IP40 No/None Off-Mom 100,000 Standard 2.50mm Top Actuated Gull Wing 4.60mm x 2.80mm 300gf Grounding Pin Tape & Reel
1µA @ 1,8VDC SPST-NO Surface Mount Sealed - IP40 No/None Off-Mom 100,000 Standard 2.50mm Top Actuated Gull Wing 4.60mm x 2.80mm 400gf Grounding Pin Tape & Reel
50mA @ 32VDC SPST-NO Surface Mount Sealed - IP40 No/None Off-Mom 100,000 Standard 2.50mm Top Actuated Gull Wing 4.60mm x 2.80mm 400gf Tape & Reel
1µA @ 1,8VDC SPST-NO Surface Mount Sealed - IP40 No/None Off-Mom 100,000 Standard 2.50mm Top Actuated Gull Wing 4.60mm x 2.80mm 400gf Tape & Reel
50mA @ 32VDC SPST-NO Surface Mount Sealed - IP40 No/None Off-Mom 200,000 Standard 2.50mm Top Actuated Gull Wing 4.60mm x 2.80mm 400gf Grounding Pin Tape & Reel
1µA @ 1,8VDC SPST-NO Surface Mount Sealed - IP40 No/None Off-Mom 200,000 Standard 2.50mm Top Actuated Gull Wing 4.60mm x 2.80mm 400gf Grounding Pin Tape & Reel
50mA @ 32VDC SPST-NO Surface Mount Sealed - IP40 No/None Off-Mom 200,000 Standard 2.50mm Top Actuated Gull Wing 4.60mm x 2.80mm 400gf Tape & Reel
1µA @ 1,8VDC SPST-NO Surface Mount Sealed - IP40 No/None Off-Mom 200,000 Standard 2.50mm Top Actuated Gull Wing 4.60mm x 2.80mm 400gf Tape & Reel
10mA @ 32VDC SPST-NO Surface Mount Sealed - IP40 No/None Off-Mom 100,000 Standard 2.50mm Top Actuated Gull Wing 4.60mm x 2.80mm 400gf Grounding Pin Tape & Reel
1µA @ 1,8VDC SPST-NO Surface Mount Sealed - IP40 No/None Off-Mom 100,000 Standard 2.50mm Top Actuated Gull Wing 4.60mm x 2.80mm 400gf Grounding Pin Tape & Reel
10mA @ 32VDC SPST-NO Surface Mount Sealed - IP40 No/None Off-Mom 100,000 Standard 2.50mm Top Actuated Gull Wing 4.60mm x 2.80mm 400gf Tape & Reel
1µA @ 1,8VDC SPST-NO Surface Mount Sealed - IP40 No/None Off-Mom 100,000 Standard 2.50mm Top Actuated Gull Wing 4.60mm x 2.80mm 200gf Tape & Reel
1µA @ 1,8VDC SPST-NO Surface Mount Sealed - IP40 No/None Off-Mom 100,000 Standard 2.50mm Top Actuated Gull Wing 4.60mm x 2.80mm 200gf Tape & Reel
1µA @ 1,8VDC SPST-NO Surface Mount Sealed - IP40 No/None Off-Mom 100,000 Standard 2.50mm Top Actuated Gull Wing 4.60mm x 2.80mm 200gf Grounding Pin Tape & Reel
1µA @ 1,8VDC SPST-NO Surface Mount Sealed - IP40 No/None Off-Mom 300,000 Standard 2.50mm Top Actuated Gull Wing 4.60mm x 2.80mm 200gf Grounding Pin Tape & Reel
10mA @ 32VDC SPST-NO Surface Mount Sealed - IP40 No/None Off-Mom 100,000 Standard 2.50mm Top Actuated Gull Wing 4.60mm x 2.80mm 200gf Grounding Pin Tape & Reel