KM Series
Subminiature Pushbutton Switches
Image shown represents the product series and may not indicate the actual part number
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Innovative alarm system, detector switch and computing equipment developers turn to C&K’s KM series of subminiature pushbutton switches when they need a switch that is reliable, long-lasting and compliant with RoHS. Built with a reliable contact design, the KM series are available with pretravel and overtravel options.
Features and Benefits
- Available with pretravel and overtravel
- Reliable contact design
Typical Applications
- Detector switch application
- Alarm systems
- Computers
Specifications
-
Contact Rating:
Silver contact material (KM11, KM12 Models): 0.25 A @ 125 V AC or DC (UL); (KM33 Model): 1 A @ 125 V AC or 28 V DC
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Contact Resistance:
Below 30 milliohms typ. initial @ 2-4 V DC, 100 mA, for both silver and gold plated contacts
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Electrical Life:
10,000 actuations min. at full load
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Dielectric Strength:
1,000 Vrms min. @ sea level
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Insulation Resistance:
10⁹ ohms min.
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Operating Temperature:
–30ºC to 85ºC
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Certifications:
models available
= Most Common
| Part Number |
|---|
| Current Rating | Circuit | Mounting Type | Sealing | Illumination | Switch Function | Electrical Life Cycles | Voltage Rating - AC | Voltage Rating - DC | Actuator Type | Color - Actuator/Cap | Illumination Type, Color | Illumination Voltage (Nominal) | Termination Style | Additional Features | Panel Cutout Dimensions | Packaging |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.4VA (AC/DC) | SPST-NC | Panel Mount, Rear, Threaded | Unsealed | No/None | On-Mom | 10,000 | 20V | 20V | Plunger for Cap | White | Thru-hole | Epoxy Sealed Terminals | Circular - 6.35mm Dia | Bulk | ||
| 1A (AC/DC) | SPST-NC | Panel Mount, Rear, Threaded | Unsealed | No/None | On-Mom | 10,000 | 125V | 28V | Plunger for Cap | White | Thru-hole | Circular - 6.35mm Dia | Bulk | |||
| 1A (AC/DC) | SPST-NC | Panel Mount, Rear, Threaded | Unsealed | No/None | On-Mom | 10,000 | 125V | 28V | Plunger for Cap | White | Thru-hole | Epoxy Sealed Terminals | Circular - 6.35mm Dia | Bulk | ||
| 0.4VA (AC/DC) | SPST-NO | Panel Mount, Rear, Threaded | Unsealed | No/None | Off-Mom | 10,000 | 20V | 20V | Plunger for Cap | White | Surface Mount, Right Angle | Circular - 6.35mm Dia | Bulk | |||
| 250mA (AC/DC) | SPST-NO | Panel Mount, Rear, Threaded | Unsealed | No/None | Off-Mom | 10,000 | 125V | 125V | Plunger for Cap | White | Thru-hole | Circular - 6.35mm Dia | Bulk | |||
| 250mA (AC/DC) | SPST-NO | Panel Mount, Rear, Threaded | Unsealed | No/None | Off-Mom | 10,000 | 125V | 125V | Plunger for Cap | White | Thru-hole | Epoxy Sealed Terminals | Circular - 6.35mm Dia | Bulk | ||
| 0.4VA (AC/DC) | SPST-NO | Panel Mount, Rear, Threaded | Unsealed | No/None | Off-Mom | 10,000 | 20V | 20V | Plunger for Cap | White | Thru-hole | Circular - 6.35mm Dia | Bulk | |||
| 0.4VA (AC/DC) | SPST-NO | Panel Mount, Rear, Threaded | Unsealed | No/None | Off-Mom | 10,000 | 20V | 20V | Plunger for Cap | White | Thru-hole | Epoxy Sealed Terminals | Circular - 6.35mm Dia | Bulk | ||
| 250mA (AC/DC) | SPST-NO | Panel Mount, Rear, Threaded | Unsealed | No/None | Off-Mom | 10,000 | 125V | 125V | Plunger for Cap | White | Thru-hole | Circular - 6.35mm Dia | Bulk | |||
| 0.4VA (AC/DC) | SPDT | Thru-hole, Right Angle | Unsealed | No/None | On-Mom | 10,000 | 20V | 20V | Plunger for Cap | White | Thru-hole, Right Angle | Epoxy Sealed Terminals | Bulk | |||
| 250mA (AC/DC) | SPDT | Thru-hole, Right Angle | Unsealed | No/None | On-Mom | 10,000 | 125V | 125V | Plunger for Cap | White | Thru-hole, Right Angle | Epoxy Sealed Terminals | Bulk |