Home
LITTELFUSE
Y78B44214FP
Y78B44214FP Tactile Switches Tact - LITTELFUSE / C&K COMPONENTS
Part Number: Y78B44214FPDownload Datasheet
Product Features
Microminiature SMT top actuated switch designed for compact applications
Excellent tactile feel with multiple actuation forces available
Ultra-low current capabilities suitable for sensitive electronic circuits
IP40 rated for protection against dust and limited ingress
Long operational life with up to 300,000 cycles depending on model
Suitable for industrial, medical, and automotive applications
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
Environmental Characteristics
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)
Mechanical Characteristics
Type
Operation Force (N)
Operation Cycles
Travel (mm)
KMR442 LFS / ULC LFS
4.0 (400 g)
200,000
0.30 mm
KMR441 LFS / ULC LFS
4.0 (400 g)
100,000
0.30 mm
Additional Details
Ground Pin (G) or No Ground Pin (NG) options available
Suitable for applications requiring high durability and tactile feedback
Designed for surface-mount technology (SMT)
Disclaimer
This datasheet does not provide enough information for applications that require a certain level of quality or safety such as automotive, medical systems, or safety equipment. Please contact customer service for the contractual specification package.
Note: Specifications are subject to change without notice. For more detailed information, please search the internet for the part number Y78B44214FP .
Use left/right arrows to navigate the slideshow or swipe left/right if using a mobile device
{"id":10027968594237,"title":"Y78B44214FP","handle":"y78b44214fp","description":"\u003ch3\u003eY78B44214FP Tactile Switches Tact - LITTELFUSE \/ C\u0026amp;K COMPONENTS\u003c\/h3\u003e\n\u003cp\u003ePart Number: Y78B44214FP\u003cbr\u003e\nManufacturer: LITTELFUSE \/ C\u0026amp;K COMPONENTS\u003cbr\u003e\nCountry of Origin: FR\u003cbr\u003e\nUnit of Measure: EA\u003cbr\u003e\nECCN: EAR99\u003cbr\u003e\nPackage Type: Not specified\u003cbr\u003e\nDatasheet: \u003ca href=\"https:\/\/ckswitches.com\/media\/1480\/kmr4.pdf\" target=\"_blank\"\u003eDownload 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 designed for compact applications\u003c\/li\u003e\n \u003cli\u003eExcellent tactile feel with multiple actuation forces available\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\u003eLong operational life with up to 300,000 cycles depending on model\u003c\/li\u003e\n \u003cli\u003eSuitable for industrial, medical, and automotive applications\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 colspan=\"2\"\u003e≥ 250 Vrms\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eContact Resistance\u003c\/td\u003e\n \u003ctd colspan=\"2\"\u003e≤ 100 mΩ\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eInsulation Resistance\u003c\/td\u003e\n \u003ctd colspan=\"2\"\u003e≥ 1 GΩ\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eBounce Time\u003c\/td\u003e\n \u003ctd colspan=\"2\"\u003e≤ 3 ms\u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eEnvironmental Characteristics\u003c\/h3\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n \u003cth\u003eOperating Temperature\u003c\/th\u003e\n \u003ctd\u003e-40°C to 85°C (Silver)\u003c\/td\u003e\n \u003ctd\u003e-40°C to 125°C (Gold)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eStorage Temperature\u003c\/th\u003e\n \u003ctd\u003e-55°C to 85°C (Silver)\u003c\/td\u003e\n \u003ctd\u003e-55°C to 125°C (Gold)\u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\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 Cycles\u003c\/th\u003e\n \u003cth\u003eTravel (mm)\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eKMR442 LFS \/ ULC LFS\u003c\/td\u003e\n \u003ctd\u003e4.0 (400 g)\u003c\/td\u003e\n \u003ctd\u003e200,000\u003c\/td\u003e\n \u003ctd\u003e0.30 mm\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eKMR441 LFS \/ ULC LFS\u003c\/td\u003e\n \u003ctd\u003e4.0 (400 g)\u003c\/td\u003e\n \u003ctd\u003e100,000\u003c\/td\u003e\n \u003ctd\u003e0.30 mm\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c!-- Additional models can be added as needed --\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eAdditional Details\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eGround Pin (G) or No Ground Pin (NG) options available\u003c\/li\u003e\n \u003cli\u003eSuitable for applications requiring high durability and tactile feedback\u003c\/li\u003e\n \u003cli\u003eDesigned for surface-mount technology (SMT)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDisclaimer\u003c\/h3\u003e\n\u003cp\u003eThis datasheet does not provide enough information for applications that require a certain level of quality or safety such as automotive, medical systems, or safety equipment. Please contact customer service for the contractual specification package.\u003c\/p\u003e\n\u003cp\u003eNote: Specifications are subject to change without notice. For more detailed information, please search the internet for the part number \u003cem\u003eY78B44214FP\u003c\/em\u003e.\u003c\/p\u003e\u003cbr\u003e","published_at":"2025-08-16T05:21:08+05:30","created_at":"2025-08-16T05:21:08+05:30","vendor":"Waldom Electonics","type":"","tags":["IMPORT_CSV","IMPORT_PT2","LITTE-CKCO","Switch","WLDM"],"price":3423,"price_min":3423,"price_max":3423,"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":50626368176445,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"Y78B44214FP","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Y78B44214FP","public_title":null,"options":["Default Title"],"price":3423,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"Y78B44214FP","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/11132760.png?v=1755301871"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/11132760.png?v=1755301871","options":["Title"],"media":[{"alt":null,"id":45862584385853,"position":1,"preview_image":{"aspect_ratio":1.0,"height":400,"width":400,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/11132760.png?v=1755301871"},"aspect_ratio":1.0,"height":400,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/11132760.png?v=1755301871","width":400}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eY78B44214FP Tactile Switches Tact - LITTELFUSE \/ C\u0026amp;K COMPONENTS\u003c\/h3\u003e\n\u003cp\u003ePart Number: Y78B44214FP\u003cbr\u003e\nManufacturer: LITTELFUSE \/ C\u0026amp;K COMPONENTS\u003cbr\u003e\nCountry of Origin: FR\u003cbr\u003e\nUnit of Measure: EA\u003cbr\u003e\nECCN: EAR99\u003cbr\u003e\nPackage Type: Not specified\u003cbr\u003e\nDatasheet: \u003ca href=\"https:\/\/ckswitches.com\/media\/1480\/kmr4.pdf\" target=\"_blank\"\u003eDownload 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 designed for compact applications\u003c\/li\u003e\n \u003cli\u003eExcellent tactile feel with multiple actuation forces available\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\u003eLong operational life with up to 300,000 cycles depending on model\u003c\/li\u003e\n \u003cli\u003eSuitable for industrial, medical, and automotive applications\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 colspan=\"2\"\u003e≥ 250 Vrms\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eContact Resistance\u003c\/td\u003e\n \u003ctd colspan=\"2\"\u003e≤ 100 mΩ\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eInsulation Resistance\u003c\/td\u003e\n \u003ctd colspan=\"2\"\u003e≥ 1 GΩ\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eBounce Time\u003c\/td\u003e\n \u003ctd colspan=\"2\"\u003e≤ 3 ms\u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eEnvironmental Characteristics\u003c\/h3\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n \u003cth\u003eOperating Temperature\u003c\/th\u003e\n \u003ctd\u003e-40°C to 85°C (Silver)\u003c\/td\u003e\n \u003ctd\u003e-40°C to 125°C (Gold)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eStorage Temperature\u003c\/th\u003e\n \u003ctd\u003e-55°C to 85°C (Silver)\u003c\/td\u003e\n \u003ctd\u003e-55°C to 125°C (Gold)\u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\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 Cycles\u003c\/th\u003e\n \u003cth\u003eTravel (mm)\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eKMR442 LFS \/ ULC LFS\u003c\/td\u003e\n \u003ctd\u003e4.0 (400 g)\u003c\/td\u003e\n \u003ctd\u003e200,000\u003c\/td\u003e\n \u003ctd\u003e0.30 mm\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eKMR441 LFS \/ ULC LFS\u003c\/td\u003e\n \u003ctd\u003e4.0 (400 g)\u003c\/td\u003e\n \u003ctd\u003e100,000\u003c\/td\u003e\n \u003ctd\u003e0.30 mm\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c!-- Additional models can be added as needed --\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eAdditional Details\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eGround Pin (G) or No Ground Pin (NG) options available\u003c\/li\u003e\n \u003cli\u003eSuitable for applications requiring high durability and tactile feedback\u003c\/li\u003e\n \u003cli\u003eDesigned for surface-mount technology (SMT)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDisclaimer\u003c\/h3\u003e\n\u003cp\u003eThis datasheet does not provide enough information for applications that require a certain level of quality or safety such as automotive, medical systems, or safety equipment. Please contact customer service for the contractual specification package.\u003c\/p\u003e\n\u003cp\u003eNote: Specifications are subject to change without notice. For more detailed information, please search the internet for the part number \u003cem\u003eY78B44214FP\u003c\/em\u003e.\u003c\/p\u003e\u003cbr\u003e"}
{
"product_id": 10027968594237,
"variant_id" : 50626368176445,
"variant_available" : true,
"inventory_quantity" : 87474,
"inventory_management" : "shopify",
"inventory_policy" : "deny",
"image": "//thinkrobotics.com/cdn/shop/files/11132760.png?v=1755301871",
"price": "3423",
"title": "Default Title",
"value": "Default Title"
}
{
"product_id": "MTAwMjc5Njg1OTQyMzc=",
"variant_id" : "NTA2MjYzNjgxNzY0NDU=",
"variant_available" : "dHJ1ZQ==",
"inventory_quantity" : "ODc0NzQ=",
"inventory_management" :"c2hvcGlmeQ==",
"inventory_policy" : "ZGVueQ==",
"image":"JTJGJTJGdGhpbmtyb2JvdGljcy5jb20lMkZjZG4lMkZzaG9wJTJGZmlsZXMlMkYxMTEzMjc2MC5wbmclM0Z2JTNEMTc1NTMwMTg3MQ==",
"price": "MzQyMw==",
"title": "RGVmYXVsdCtUaXRsZQ==",
"value": "RGVmYXVsdCtUaXRsZQ==",
"variant_options": {"Title": "RGVmYXVsdCtUaXRsZQ=="
}
}
India
---
Australia
Canada
India
Mexico
United Arab Emirates
United States
