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Y78B42110FP

Y78B42110FP

SKU: Y78B42110FP

₹ 32.71

₹ 32.71

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Y78B42110FP Tactile Switches by LITTELFUSE / C&K COMPONENTS

Part Number: Y78B42110FP

Manufacturer: LITTELFUSE / C&K COMPONENTS

Country of Origin: France (FR)

Unit of Measure (UOM): Each (EA)

ECCN: EAR99

Package Type: Reel

Datasheet: KMR4 Series Tactile Switch Datasheet

Product Features

Microminiature SMT top actuated switch with small footprint
Available with 4 actuation forces for versatile applications
Provides an excellent tactile feel for user feedback
Ultra-low current capabilities suitable for sensitive electronic circuits
IP40 rated for protection against dust and limited ingress
Designed for long-lasting performance with up to 300,000 cycles

Electrical Characteristics

Parameter	Silver	Gold
Maximum Power	1 VA	0.2 VA
Maximum Voltage	32 VDC	32 VDC
Minimum Voltage	20 mVDC	20 mVDC
Maximum Current	50 mA	10 mA
Minimum Current	1 mA¹	1 mA¹
Dielectric Strength	≥ 250 Vrms
Contact Resistance	≤ 100 mΩ
Insulation Resistance	≥ 1 GΩ
Bounce Time	≤ 3 ms

¹ For ULC version, minimum current is 1µA at 1.8 VDC

Mechanical Characteristics

Type	Operation Force (N)	Operation Force (grs)	Operating Life (cycles)	Travel (mm)
KMR411 LFS, KMR411 ULC LFS	1.2	120	100,000	0.20 mm ± 0.1
KMR421 LFS, KMR421 ULC LFS	2.0	200	100,000	0.25 mm ± 0.1
KMR431 LFS, KMR431 ULC LFS	3.0	300	100,000	0.25 mm ± 0.1
KMR442 LFS, KMR442 ULC LFS	4.0	400	200,000	0.30 mm ± 0.1

Environmental & Operating Conditions

Operating Temperature: -40°C to 85°C (Silver), -40°C to 125°C (Gold)
Storage Temperature: -55°C to 85°C (Silver), -55°C to 125°C (Gold)

Additional Information

Package includes reel for automated placement
RoHS compliant
Designed for industrial, medical, and automotive applications

For detailed specifications and custom options, please refer to the datasheet.

Note: The datasheet was not processed; please search the internet for the part number Y78B42110FP for more details.

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{"id":10027967643965,"title":"Y78B42110FP","handle":"y78b42110fp","description":"\u003ch3\u003eY78B42110FP Tactile Switches by LITTELFUSE \/ C\u0026amp;K COMPONENTS\u003c\/h3\u003e\n\u003cp\u003ePart Number: Y78B42110FP\u003c\/p\u003e\n\u003cp\u003eManufacturer: LITTELFUSE \/ C\u0026amp;K COMPONENTS\u003c\/p\u003e\n\u003cp\u003eCountry of Origin: France (FR)\u003c\/p\u003e\n\u003cp\u003eUnit of Measure (UOM): Each (EA)\u003c\/p\u003e\n\u003cp\u003eECCN: EAR99\u003c\/p\u003e\n\u003cp\u003ePackage Type: Reel\u003c\/p\u003e\n\u003cp\u003eDatasheet: \u003ca href=\"https:\/\/ckswitches.com\/media\/1480\/kmr4.pdf\" target=\"_blank\"\u003eKMR4 Series Tactile Switch Datasheet\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMicrominiature SMT top actuated switch with small footprint\u003c\/li\u003e\n\u003cli\u003eAvailable with 4 actuation forces for versatile applications\u003c\/li\u003e\n\u003cli\u003eProvides an excellent tactile feel for user feedback\u003c\/li\u003e\n\u003cli\u003eUltra-low current capabilities suitable for sensitive electronic circuits\u003c\/li\u003e\n\u003cli\u003eIP40 rated for protection against dust and limited ingress\u003c\/li\u003e\n\u003cli\u003eDesigned for long-lasting performance with up to 300,000 cycles\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eElectrical Characteristics\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSilver\u003c\/th\u003e\n\u003cth\u003eGold\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Power\u003c\/td\u003e\n\u003ctd\u003e1 VA\u003c\/td\u003e\n\u003ctd\u003e0.2 VA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Voltage\u003c\/td\u003e\n\u003ctd\u003e32 VDC\u003c\/td\u003e\n\u003ctd\u003e32 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum Voltage\u003c\/td\u003e\n\u003ctd\u003e20 mVDC\u003c\/td\u003e\n\u003ctd\u003e20 mVDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Current\u003c\/td\u003e\n\u003ctd\u003e50 mA\u003c\/td\u003e\n\u003ctd\u003e10 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum Current\u003c\/td\u003e\n\u003ctd\u003e1 mA¹\u003c\/td\u003e\n\u003ctd\u003e1 mA¹\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDielectric Strength\u003c\/td\u003e\n\u003ctd\u003e≥ 250 Vrms\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Resistance\u003c\/td\u003e\n\u003ctd\u003e≤ 100 mΩ\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInsulation Resistance\u003c\/td\u003e\n\u003ctd\u003e≥ 1 GΩ\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBounce Time\u003c\/td\u003e\n\u003ctd\u003e≤ 3 ms\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003e¹ For ULC version, minimum current is 1µA at 1.8 VDC\u003c\/p\u003e\n\n\u003ch3\u003eMechanical Characteristics\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003cth\u003eOperation Force (N)\u003c\/th\u003e\n\u003cth\u003eOperation Force (grs)\u003c\/th\u003e\n\u003cth\u003eOperating Life (cycles)\u003c\/th\u003e\n\u003cth\u003eTravel (mm)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKMR411 LFS, KMR411 ULC LFS\u003c\/td\u003e\n\u003ctd\u003e1.2\u003c\/td\u003e\n\u003ctd\u003e120\u003c\/td\u003e\n\u003ctd\u003e100,000\u003c\/td\u003e\n\u003ctd\u003e0.20 mm ± 0.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKMR421 LFS, KMR421 ULC LFS\u003c\/td\u003e\n\u003ctd\u003e2.0\u003c\/td\u003e\n\u003ctd\u003e200\u003c\/td\u003e\n\u003ctd\u003e100,000\u003c\/td\u003e\n\u003ctd\u003e0.25 mm ± 0.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKMR431 LFS, KMR431 ULC LFS\u003c\/td\u003e\n\u003ctd\u003e3.0\u003c\/td\u003e\n\u003ctd\u003e300\u003c\/td\u003e\n\u003ctd\u003e100,000\u003c\/td\u003e\n\u003ctd\u003e0.25 mm ± 0.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKMR442 LFS, KMR442 ULC LFS\u003c\/td\u003e\n\u003ctd\u003e4.0\u003c\/td\u003e\n\u003ctd\u003e400\u003c\/td\u003e\n\u003ctd\u003e200,000\u003c\/td\u003e\n\u003ctd\u003e0.30 mm ± 0.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eEnvironmental \u0026amp; Operating Conditions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOperating Temperature: -40°C to 85°C (Silver), -40°C to 125°C (Gold)\u003c\/li\u003e\n\u003cli\u003eStorage Temperature: -55°C to 85°C (Silver), -55°C to 125°C (Gold)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAdditional Information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePackage includes reel for automated placement\u003c\/li\u003e\n\u003cli\u003eRoHS compliant\u003c\/li\u003e\n\u003cli\u003eDesigned for industrial, medical, and automotive applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor detailed specifications and custom options, please refer to the \u003ca href=\"https:\/\/ckswitches.com\/media\/1480\/kmr4.pdf\" target=\"_blank\"\u003edatasheet\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e The datasheet was not processed; please search the internet for the part number Y78B42110FP for more details.\u003c\/p\u003e\u003cbr\u003e","published_at":"2025-08-16T05:20:14+05:30","created_at":"2025-08-16T05:20:15+05:30","vendor":"Waldom Electonics","type":"","tags":["IMPORT_CSV","IMPORT_PT2","LITTE-CKCO","Switch","WLDM"],"price":3271,"price_min":3271,"price_max":3271,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":50626367193405,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"Y78B42110FP","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Y78B42110FP","public_title":null,"options":["Default Title"],"price":3271,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"Y78B42110FP","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/11132743.png?v=1755301817"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/11132743.png?v=1755301817","options":["Title"],"media":[{"alt":null,"id":45862571999549,"position":1,"preview_image":{"aspect_ratio":1.0,"height":400,"width":400,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/11132743.png?v=1755301817"},"aspect_ratio":1.0,"height":400,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/11132743.png?v=1755301817","width":400}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eY78B42110FP Tactile Switches by LITTELFUSE \/ C\u0026amp;K COMPONENTS\u003c\/h3\u003e\n\u003cp\u003ePart Number: Y78B42110FP\u003c\/p\u003e\n\u003cp\u003eManufacturer: LITTELFUSE \/ C\u0026amp;K COMPONENTS\u003c\/p\u003e\n\u003cp\u003eCountry of Origin: France (FR)\u003c\/p\u003e\n\u003cp\u003eUnit of Measure (UOM): Each (EA)\u003c\/p\u003e\n\u003cp\u003eECCN: EAR99\u003c\/p\u003e\n\u003cp\u003ePackage Type: Reel\u003c\/p\u003e\n\u003cp\u003eDatasheet: \u003ca href=\"https:\/\/ckswitches.com\/media\/1480\/kmr4.pdf\" target=\"_blank\"\u003eKMR4 Series Tactile Switch Datasheet\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMicrominiature SMT top actuated switch with small footprint\u003c\/li\u003e\n\u003cli\u003eAvailable with 4 actuation forces for versatile applications\u003c\/li\u003e\n\u003cli\u003eProvides an excellent tactile feel for user feedback\u003c\/li\u003e\n\u003cli\u003eUltra-low current capabilities suitable for sensitive electronic circuits\u003c\/li\u003e\n\u003cli\u003eIP40 rated for protection against dust and limited ingress\u003c\/li\u003e\n\u003cli\u003eDesigned for long-lasting performance with up to 300,000 cycles\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eElectrical Characteristics\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSilver\u003c\/th\u003e\n\u003cth\u003eGold\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Power\u003c\/td\u003e\n\u003ctd\u003e1 VA\u003c\/td\u003e\n\u003ctd\u003e0.2 VA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Voltage\u003c\/td\u003e\n\u003ctd\u003e32 VDC\u003c\/td\u003e\n\u003ctd\u003e32 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum Voltage\u003c\/td\u003e\n\u003ctd\u003e20 mVDC\u003c\/td\u003e\n\u003ctd\u003e20 mVDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Current\u003c\/td\u003e\n\u003ctd\u003e50 mA\u003c\/td\u003e\n\u003ctd\u003e10 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum Current\u003c\/td\u003e\n\u003ctd\u003e1 mA¹\u003c\/td\u003e\n\u003ctd\u003e1 mA¹\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDielectric Strength\u003c\/td\u003e\n\u003ctd\u003e≥ 250 Vrms\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Resistance\u003c\/td\u003e\n\u003ctd\u003e≤ 100 mΩ\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInsulation Resistance\u003c\/td\u003e\n\u003ctd\u003e≥ 1 GΩ\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBounce Time\u003c\/td\u003e\n\u003ctd\u003e≤ 3 ms\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003e¹ For ULC version, minimum current is 1µA at 1.8 VDC\u003c\/p\u003e\n\n\u003ch3\u003eMechanical Characteristics\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003cth\u003eOperation Force (N)\u003c\/th\u003e\n\u003cth\u003eOperation Force (grs)\u003c\/th\u003e\n\u003cth\u003eOperating Life (cycles)\u003c\/th\u003e\n\u003cth\u003eTravel (mm)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKMR411 LFS, KMR411 ULC LFS\u003c\/td\u003e\n\u003ctd\u003e1.2\u003c\/td\u003e\n\u003ctd\u003e120\u003c\/td\u003e\n\u003ctd\u003e100,000\u003c\/td\u003e\n\u003ctd\u003e0.20 mm ± 0.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKMR421 LFS, KMR421 ULC LFS\u003c\/td\u003e\n\u003ctd\u003e2.0\u003c\/td\u003e\n\u003ctd\u003e200\u003c\/td\u003e\n\u003ctd\u003e100,000\u003c\/td\u003e\n\u003ctd\u003e0.25 mm ± 0.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKMR431 LFS, KMR431 ULC LFS\u003c\/td\u003e\n\u003ctd\u003e3.0\u003c\/td\u003e\n\u003ctd\u003e300\u003c\/td\u003e\n\u003ctd\u003e100,000\u003c\/td\u003e\n\u003ctd\u003e0.25 mm ± 0.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKMR442 LFS, KMR442 ULC LFS\u003c\/td\u003e\n\u003ctd\u003e4.0\u003c\/td\u003e\n\u003ctd\u003e400\u003c\/td\u003e\n\u003ctd\u003e200,000\u003c\/td\u003e\n\u003ctd\u003e0.30 mm ± 0.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eEnvironmental \u0026amp; Operating Conditions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOperating Temperature: -40°C to 85°C (Silver), -40°C to 125°C (Gold)\u003c\/li\u003e\n\u003cli\u003eStorage Temperature: -55°C to 85°C (Silver), -55°C to 125°C (Gold)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAdditional Information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePackage includes reel for automated placement\u003c\/li\u003e\n\u003cli\u003eRoHS compliant\u003c\/li\u003e\n\u003cli\u003eDesigned for industrial, medical, and automotive applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor detailed specifications and custom options, please refer to the \u003ca href=\"https:\/\/ckswitches.com\/media\/1480\/kmr4.pdf\" target=\"_blank\"\u003edatasheet\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e The datasheet was not processed; please search the internet for the part number Y78B42110FP for more details.\u003c\/p\u003e\u003cbr\u003e"}