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Y78B43210FP
Y78B43210FP Tactile Switch by LITTELFUSE / C&K COMPONENTS
Introducing the Y78B43210FP tactile switch from LITTELFUSE / C&K COMPONENTS, a high-quality, microminiature SMT switch designed for demanding industrial, medical, and automotive applications. Manufactured in France, this switch features a compact footprint and excellent tactile feedback, ensuring reliable operation even in harsh environments.
Product Features
Small footprint ideal for space-constrained designs
Available with 4 actuation forces for versatile applications
Excellent tactile feel for precise user feedback
Ultra-low current capabilities for energy-efficient operation
IP40 ingress protection rating
Package Type: Reel for automated assembly
RoHS compliant, ensuring environmentally friendly manufacturing
Part Number: Y78B43210FP
Manufacturer: LITTELFUSE / C&K COMPONENTS
Country of Origin: France (COO: FR)
Unit of Measure: Each (EA)
ECCN: EAR99
Datasheet: KMR4 Series Datasheet
Electrical Characteristics
Maximum Power
1 VA (Silver)
0.2 VA (Gold)
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
Operation Force
1.2 N (120 g)
Operation Life
100,000 cycles
Travel
0.20 mm ± 0.1
Additional Details
Ground Pin Option: G
No Ground Pin Option: NG
Package Type: Reel for automated placement
For more detailed specifications and custom options, please refer to the datasheet .
Note: This datasheet does not provide enough information for applications requiring specific safety or quality standards such as automotive or medical systems. Please contact customer service for contractual specifications.
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Manufactured in France, this switch features a compact footprint and excellent tactile feedback, ensuring reliable operation even in harsh environments.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eSmall footprint ideal for space-constrained designs\u003c\/li\u003e\n \u003cli\u003eAvailable with 4 actuation forces for versatile applications\u003c\/li\u003e\n \u003cli\u003eExcellent tactile feel for precise user feedback\u003c\/li\u003e\n \u003cli\u003eUltra-low current capabilities for energy-efficient operation\u003c\/li\u003e\n \u003cli\u003eIP40 ingress protection rating\u003c\/li\u003e\n \u003cli\u003ePackage Type: Reel for automated assembly\u003c\/li\u003e\n \u003cli\u003eRoHS compliant, ensuring environmentally friendly manufacturing\u003c\/li\u003e\n \u003cli\u003ePart Number: Y78B43210FP\u003c\/li\u003e\n \u003cli\u003eManufacturer: LITTELFUSE \/ C\u0026amp;K COMPONENTS\u003c\/li\u003e\n \u003cli\u003eCountry of Origin: France (COO: FR)\u003c\/li\u003e\n \u003cli\u003eUnit of Measure: Each (EA)\u003c\/li\u003e\n \u003cli\u003eECCN: EAR99\u003c\/li\u003e\n \u003cli\u003eDatasheet: \u003ca href=\"https:\/\/ckswitches.com\/media\/1480\/kmr4.pdf\" target=\"_blank\"\u003eKMR4 Series Datasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eElectrical Characteristics\u003c\/h3\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n \u003cth\u003eMaximum Power\u003c\/th\u003e\n \u003ctd\u003e1 VA (Silver)\u003c\/td\u003e\n \u003ctd\u003e0.2 VA (Gold)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eMaximum Voltage\u003c\/th\u003e\n \u003ctd\u003e32 VDC\u003c\/td\u003e\n \u003ctd\u003e32 VDC\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eMinimum Voltage\u003c\/th\u003e\n \u003ctd\u003e20 mVDC\u003c\/td\u003e\n \u003ctd\u003e20 mVDC\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eMaximum Current\u003c\/th\u003e\n \u003ctd\u003e50 mA\u003c\/td\u003e\n \u003ctd\u003e10 mA\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eMinimum Current\u003c\/th\u003e\n \u003ctd\u003e1 mA¹\u003c\/td\u003e\n \u003ctd\u003e1 mA¹\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eDielectric Strength\u003c\/th\u003e\n \u003ctd\u003e≥ 250 Vrms\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eContact Resistance\u003c\/th\u003e\n \u003ctd\u003e≤ 100 mΩ\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eInsulation Resistance\u003c\/th\u003e\n \u003ctd\u003e≥ 1 GΩ\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eBounce Time\u003c\/th\u003e\n \u003ctd\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\u003eOperation Force\u003c\/th\u003e\n \u003ctd\u003e1.2 N (120 g)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eOperation Life\u003c\/th\u003e\n \u003ctd\u003e100,000 cycles\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eTravel\u003c\/th\u003e\n \u003ctd\u003e0.20 mm ± 0.1\u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eAdditional Details\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eGround Pin Option: G\u003c\/li\u003e\n \u003cli\u003eNo Ground Pin Option: NG\u003c\/li\u003e\n \u003cli\u003ePackage Type: Reel for automated placement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor more 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 This datasheet does not provide enough information for applications requiring specific safety or quality standards such as automotive or medical systems. Please contact customer service for contractual specifications.\u003c\/p\u003e\u003cbr\u003e","published_at":"2025-08-16T05:20:39+05:30","created_at":"2025-08-16T05:20:39+05:30","vendor":"Waldom Electonics","type":"","tags":["IMPORT_CSV","IMPORT_PT2","LITTE-CKCO","WLDM"],"price":4075,"price_min":4075,"price_max":4075,"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":50626367783229,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"Y78B43210FP","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Y78B43210FP","public_title":null,"options":["Default Title"],"price":4075,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"Y78B43210FP","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/11132749.png?v=1755301842"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/11132749.png?v=1755301842","options":["Title"],"media":[{"alt":null,"id":45862578913597,"position":1,"preview_image":{"aspect_ratio":1.0,"height":400,"width":400,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/11132749.png?v=1755301842"},"aspect_ratio":1.0,"height":400,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/11132749.png?v=1755301842","width":400}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eY78B43210FP Tactile Switch by LITTELFUSE \/ C\u0026amp;K COMPONENTS\u003c\/h3\u003e\n\n\u003cp\u003eIntroducing the Y78B43210FP tactile switch from LITTELFUSE \/ C\u0026amp;K COMPONENTS, a high-quality, microminiature SMT switch designed for demanding industrial, medical, and automotive applications. Manufactured in France, this switch features a compact footprint and excellent tactile feedback, ensuring reliable operation even in harsh environments.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eSmall footprint ideal for space-constrained designs\u003c\/li\u003e\n \u003cli\u003eAvailable with 4 actuation forces for versatile applications\u003c\/li\u003e\n \u003cli\u003eExcellent tactile feel for precise user feedback\u003c\/li\u003e\n \u003cli\u003eUltra-low current capabilities for energy-efficient operation\u003c\/li\u003e\n \u003cli\u003eIP40 ingress protection rating\u003c\/li\u003e\n \u003cli\u003ePackage Type: Reel for automated assembly\u003c\/li\u003e\n \u003cli\u003eRoHS compliant, ensuring environmentally friendly manufacturing\u003c\/li\u003e\n \u003cli\u003ePart Number: Y78B43210FP\u003c\/li\u003e\n \u003cli\u003eManufacturer: LITTELFUSE \/ C\u0026amp;K COMPONENTS\u003c\/li\u003e\n \u003cli\u003eCountry of Origin: France (COO: FR)\u003c\/li\u003e\n \u003cli\u003eUnit of Measure: Each (EA)\u003c\/li\u003e\n \u003cli\u003eECCN: EAR99\u003c\/li\u003e\n \u003cli\u003eDatasheet: \u003ca href=\"https:\/\/ckswitches.com\/media\/1480\/kmr4.pdf\" target=\"_blank\"\u003eKMR4 Series Datasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eElectrical Characteristics\u003c\/h3\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n \u003cth\u003eMaximum Power\u003c\/th\u003e\n \u003ctd\u003e1 VA (Silver)\u003c\/td\u003e\n \u003ctd\u003e0.2 VA (Gold)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eMaximum Voltage\u003c\/th\u003e\n \u003ctd\u003e32 VDC\u003c\/td\u003e\n \u003ctd\u003e32 VDC\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eMinimum Voltage\u003c\/th\u003e\n \u003ctd\u003e20 mVDC\u003c\/td\u003e\n \u003ctd\u003e20 mVDC\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eMaximum Current\u003c\/th\u003e\n \u003ctd\u003e50 mA\u003c\/td\u003e\n \u003ctd\u003e10 mA\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eMinimum Current\u003c\/th\u003e\n \u003ctd\u003e1 mA¹\u003c\/td\u003e\n \u003ctd\u003e1 mA¹\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eDielectric Strength\u003c\/th\u003e\n \u003ctd\u003e≥ 250 Vrms\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eContact Resistance\u003c\/th\u003e\n \u003ctd\u003e≤ 100 mΩ\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eInsulation Resistance\u003c\/th\u003e\n \u003ctd\u003e≥ 1 GΩ\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eBounce Time\u003c\/th\u003e\n \u003ctd\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\u003eOperation Force\u003c\/th\u003e\n \u003ctd\u003e1.2 N (120 g)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eOperation Life\u003c\/th\u003e\n \u003ctd\u003e100,000 cycles\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eTravel\u003c\/th\u003e\n \u003ctd\u003e0.20 mm ± 0.1\u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eAdditional Details\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eGround Pin Option: G\u003c\/li\u003e\n \u003cli\u003eNo Ground Pin Option: NG\u003c\/li\u003e\n \u003cli\u003ePackage Type: Reel for automated placement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor more 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 This datasheet does not provide enough information for applications requiring specific safety or quality standards such as automotive or medical systems. Please contact customer service for contractual specifications.\u003c\/p\u003e\u003cbr\u003e"}
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