C&K-KMR423NGULCLFG Switch Tactile Switch Tactile OFF Mom SPST Round Button Gull Wing 0.01A 32VDC 0.2VA 200000Cycles 2N SMD T/R

Switches

KMR442G ULC LFS

Active

Littelfuse/Commercial Vehicle Products

SWITCH TACTILE OFF MOM SPST ROUND BUTTON GULL WING 0.05A 32VDC 1VA 200000CYCLES 4N SMD T/R

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Switches

KMR442G ULC LFS

Active

Littelfuse/Commercial Vehicle Products

SWITCH TACTILE OFF MOM SPST ROUND BUTTON GULL WING 0.05A 32VDC 1VA 200000CYCLES 4N SMD T/R

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Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	KMR442G ULC LFS

Actuator Height off PCB, Vertical [z]	2.5 mm
Actuator Orientation	Top Actuated
Actuator Type	Standard
Circuit	SPST-NO
Contact Rating @ Voltage	0.05 A
Features	Grounding Pin
Illumination	Non-Illuminated
Mechanical Life	200000 Cycles
Mounting Type	Surface Mount
Operating Force	400 gf
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Outline [x]	4.6 mm
Outline [y]	2.8 mm
Switch Function	Off-Mom
Switch Travel	0.35 mm
Termination Style	Gull Wing

Kmr40 Series Series

Microminiature SMT Top Actuated

Part	Actuator Height off PCB, Vertical [z]	Features	Actuator Type	Switch Function	Mechanical Life	Circuit	Actuator Orientation	Operating Force	Switch Travel	Outline [x]	Outline [y]	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Illumination	Termination Style	Contact Rating @ Voltage	Switch Travel [custom]
Littelfuse/Commercial Vehicle Products KMR442G ULC LFS	2.5 mm	Grounding Pin	Standard	Off-Mom	200000 Cycles	SPST-NO	Top Actuated	400 gf	0.35 mm	4.6 mm	2.8 mm	85 °C	-40 °C	Surface Mount	Non-Illuminated	Gull Wing	0.05 A
Littelfuse/Commercial Vehicle Products KMR421G LFS	2.5 mm	Grounding Pin	Standard	Off-Mom	200000 Cycles	SPST-NO	Top Actuated	200 gf	0.25 mm	4.6 mm	2.8 mm	85 °C	-40 °C	Surface Mount	Non-Illuminated	Gull Wing	0.05 A
Littelfuse/Commercial Vehicle Products KMR421GULCLFS	2.5 mm	Grounding Pin	Standard	Off-Mom	200000 Cycles	SPST-NO	Top Actuated	200 gf	0.25 mm	4.6 mm	2.8 mm	85 °C	-40 °C	Surface Mount	Non-Illuminated	Gull Wing	0.05 A
Littelfuse/Commercial Vehicle Products KMR421GLFS
Littelfuse/Commercial Vehicle Products KMR421NGLFS	2.5 mm		Standard	Off-Mom	200000 Cycles	SPST-NO	Top Actuated	200 gf	0.25 mm	4.6 mm	2.8 mm	85 °C	-40 °C	Surface Mount	Non-Illuminated	Gull Wing	0.05 A
Littelfuse/Commercial Vehicle Products KMR433NG ULC LFG	2.5 mm		Standard	Off-Mom	300000 Cycles	SPST-NO	Top Actuated	300 gf		4.6 mm	2.8 mm	85 °C	-40 °C	Surface Mount	Non-Illuminated	Gull Wing	0.01 A 32 VDC	0.3 mm
Littelfuse/Commercial Vehicle Products KMR431GULCLFS	2.5 mm	Grounding Pin	Standard	Off-Mom	150000 Cycles	SPST-NO	Top Actuated	300 gf		4.6 mm	2.8 mm	85 °C	-40 °C	Surface Mount	Non-Illuminated	Gull Wing	0.05 A	0.3 mm
Littelfuse/Commercial Vehicle Products KMR442NGLFS	2.5 mm		Standard	Off-Mom	200000 Cycles	SPST-NO	Top Actuated	400 gf	0.35 mm	4.6 mm	2.8 mm	85 °C	-40 °C	Surface Mount	Non-Illuminated	Gull Wing	0.05 A
Littelfuse/Commercial Vehicle Products KMR431NG ULC LFS	2.5 mm		Standard	Off-Mom	150000 Cycles	SPST-NO	Top Actuated	300 gf		4.6 mm	2.8 mm	85 °C	-40 °C	Surface Mount	Non-Illuminated	Gull Wing	0.05 A	0.3 mm
Littelfuse/Commercial Vehicle Products KMR433GULCLFG	2.5 mm	Grounding Pin	Standard	Off-Mom	300000 Cycles	SPST-NO	Top Actuated	300 gf		4.6 mm	2.8 mm	85 °C	-40 °C	Surface Mount	Non-Illuminated	Gull Wing	0.01 A 32 VDC	0.3 mm

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 0.46
		10	$ 0.45
		25	$ 0.43
		100	$ 0.37
		250	$ 0.34
		500	$ 0.32
		1000	$ 0.30
	Digi-Reel®	1	$ 0.46
		10	$ 0.45
		25	$ 0.43
		100	$ 0.37
		250	$ 0.34
		500	$ 0.32
		1000	$ 0.30
	Tape & Reel (TR)	6000	$ 0.30

Description

General part information

Kmr40 Series Series

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.

Documents

Technical documentation and resources