Enhance your electronic designs with the high-quality PTS125 Series 12 mm tactile switches from LITTELFUSE / C&K COMPONENTS. These switches are suitable for a variety of applications including consumer products, instrumentation, computer devices, and industrial equipment.
Product Features & Benefits
Momentary action switch with SPST, N.O. contact configuration
Available with THT and SMT terminations for versatile assembly options
Multiple actuator heights and snap-fit actuator options
Silver-plated contacts compliant with RoHS standards
Mechanical durability with an operating life of 200,000 cycles
Operating force options: 180 gf ± 50 or 250 gf ± 50
Maximum voltage: 12 VDC and maximum current: 50 mA
Use left/right arrows to navigate the slideshow or swipe left/right if using a mobile device
Choosing a selection results in a full page refresh.
Press the space key then arrow keys to make a selection.
Shopping Cart
{"id":10027879629117,"title":"PTS125SK85SMTR2LFS","handle":"pts125sk85smtr2lfs","description":"\u003ch3\u003eShopify Electronic Product: LITTELFUSE \/ C\u0026amp;K COMPONENTS Tactile Switches (Part Number: PTS125SK85SMTR2LFS)\u003c\/h3\u003e\n\n\u003cp\u003eEnhance your electronic designs with the high-quality \u003cstrong\u003ePTS125 Series\u003c\/strong\u003e 12 mm tactile switches from \u003cstrong\u003eLITTELFUSE \/ C\u0026amp;K COMPONENTS\u003c\/strong\u003e. These switches are suitable for a variety of applications including consumer products, instrumentation, computer devices, and industrial equipment.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eMomentary action switch with SPST, N.O. contact configuration\u003c\/li\u003e\n \u003cli\u003eAvailable with THT and SMT terminations for versatile assembly options\u003c\/li\u003e\n \u003cli\u003eMultiple actuator heights and snap-fit actuator options\u003c\/li\u003e\n \u003cli\u003eSilver-plated contacts compliant with RoHS standards\u003c\/li\u003e\n \u003cli\u003eMechanical durability with an operating life of 200,000 cycles\u003c\/li\u003e\n \u003cli\u003eOperating force options: 180 gf ± 50 or 250 gf ± 50\u003c\/li\u003e\n \u003cli\u003eMaximum voltage: 12 VDC and maximum current: 50 mA\u003c\/li\u003e\n \u003cli\u003eDielectric strength of 250 V AC (1 min)\u003c\/li\u003e\n \u003cli\u003eContact resistance: \u0026lt;100 mΩ; Insulation resistance: \u0026gt;100 MΩ\u003c\/li\u003e\n \u003cli\u003eSuitable for infrared reflow and wave soldering processes\u003c\/li\u003e\n \u003cli\u003eOperating temperature range: -20°C to 70°C\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n \u003cth\u003eFunction\u003c\/th\u003e\n \u003ctd\u003eMomentary action\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eContact Arrangement\u003c\/th\u003e\n \u003ctd\u003e1 make contact SPST, N.O.\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eTravel\u003c\/th\u003e\n \u003ctd\u003e0.30 mm ± 0.15 mm\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eOperating Life\u003c\/th\u003e\n \u003ctd\u003e200,000 cycles\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eOperating Force\u003c\/th\u003e\n \u003ctd\u003e180 gf ± 50 or 250 gf ± 50\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eMax Voltage\u003c\/th\u003e\n \u003ctd\u003e12 VDC\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eMax Current\u003c\/th\u003e\n \u003ctd\u003e50 mA\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eDielectric Strength\u003c\/th\u003e\n \u003ctd\u003e250 V AC (1 min)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eContact Resistance\u003c\/th\u003e\n \u003ctd\u003e\u0026lt;100 mΩ\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eInsulation Resistance\u003c\/th\u003e\n \u003ctd\u003e\u0026gt;100 MΩ\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eBounce Time\u003c\/th\u003e\n \u003ctd\u003e\u0026lt; 5 ms\u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eEnvironmental \u0026amp; Process Details\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eOperating temperature: -20°C to 70°C\u003c\/li\u003e\n \u003cli\u003eSoldering methods: Infrared reflow (IEC 61760-1) and wave soldering compatible with lead-free solder profiles\u003c\/li\u003e\n \u003cli\u003ePackage options include tape \u0026amp; reel for SMT versions and plastic bags for THT versions\u003c\/li\u003e\n \u003cli\u003eParticularly suitable for automated assembly processes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Options \u0026amp; Ordering\u003c\/h3\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n \u003cth\u003eSwitch Height\u003c\/th\u003e\n \u003ctd\u003e4.3 mm, 7.3 mm, 8.5 mm, 12.0 mm (other heights available upon request)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eActuator Style\u003c\/th\u003e\n \u003ctd\u003eRound, Square Snap Fit\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eTermination \u0026amp; Packaging\u003c\/th\u003e\n \u003ctd\u003eTHT in bags, SMT in tape \u0026amp; reel\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003ePegs Option\u003c\/th\u003e\n \u003ctd\u003eWith pegs (only for SMT round and square snap fit actuators)\u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePart Number \u0026amp; Additional Details\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e PTS125SK85SMTR2LFS\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e LITTELFUSE \/ C\u0026amp;K COMPONENTS\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e CN\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eUOM:\u003c\/strong\u003e EA\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eECCN:\u003c\/strong\u003e EAR99\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003ePackage Type:\u003c\/strong\u003e TAPE\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDatasheet \u0026amp; Resources\u003c\/h3\u003e\n\u003cp\u003eFor detailed technical specifications, download the datasheet here: \u003ca href=\"https:\/\/4donline.ihs.com\/images\/VipMasterIC\/IC\/CKCI\/CKCI-S-A0001404160\/CKCI-S-A0001796640-1.pdf?hkey=82A29B72BDB3BD67C626B77C2F032848\" target=\"_blank\"\u003eCK PTS125 Series Datasheet\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003eNote: Specifications and dimensions are subject to change. Please verify details with the datasheet or contact customer service for custom options.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eDatasheet was not processed please search the internet for the part number for more details.\u003c\/em\u003e\u003c\/p\u003e\u003cbr\u003e","published_at":"2025-08-16T04:09:45+05:30","created_at":"2025-08-16T04:09:45+05:30","vendor":"Waldom Electonics","type":"Switches","tags":["12VDC","5mm","IMPORT_CSV","IMPORT_PT2","LITTE-CKCO","Switch","Tactile","WLDM"],"price":3382,"price_min":3382,"price_max":3382,"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":50626237301053,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"PTS125SK85SMTR2LFS","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"PTS125SK85SMTR2LFS","public_title":null,"options":["Default Title"],"price":3382,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"PTS125SK85SMTR2LFS","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/PTS125SK85SMTR2LFS_48235211_b64354f1.jpg?v=1755297588"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/PTS125SK85SMTR2LFS_48235211_b64354f1.jpg?v=1755297588","options":["Title"],"media":[{"alt":null,"id":45861564842301,"position":1,"preview_image":{"aspect_ratio":1.12,"height":200,"width":224,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/PTS125SK85SMTR2LFS_48235211_b64354f1.jpg?v=1755297588"},"aspect_ratio":1.12,"height":200,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/PTS125SK85SMTR2LFS_48235211_b64354f1.jpg?v=1755297588","width":224}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eShopify Electronic Product: LITTELFUSE \/ C\u0026amp;K COMPONENTS Tactile Switches (Part Number: PTS125SK85SMTR2LFS)\u003c\/h3\u003e\n\n\u003cp\u003eEnhance your electronic designs with the high-quality \u003cstrong\u003ePTS125 Series\u003c\/strong\u003e 12 mm tactile switches from \u003cstrong\u003eLITTELFUSE \/ C\u0026amp;K COMPONENTS\u003c\/strong\u003e. These switches are suitable for a variety of applications including consumer products, instrumentation, computer devices, and industrial equipment.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eMomentary action switch with SPST, N.O. contact configuration\u003c\/li\u003e\n \u003cli\u003eAvailable with THT and SMT terminations for versatile assembly options\u003c\/li\u003e\n \u003cli\u003eMultiple actuator heights and snap-fit actuator options\u003c\/li\u003e\n \u003cli\u003eSilver-plated contacts compliant with RoHS standards\u003c\/li\u003e\n \u003cli\u003eMechanical durability with an operating life of 200,000 cycles\u003c\/li\u003e\n \u003cli\u003eOperating force options: 180 gf ± 50 or 250 gf ± 50\u003c\/li\u003e\n \u003cli\u003eMaximum voltage: 12 VDC and maximum current: 50 mA\u003c\/li\u003e\n \u003cli\u003eDielectric strength of 250 V AC (1 min)\u003c\/li\u003e\n \u003cli\u003eContact resistance: \u0026lt;100 mΩ; Insulation resistance: \u0026gt;100 MΩ\u003c\/li\u003e\n \u003cli\u003eSuitable for infrared reflow and wave soldering processes\u003c\/li\u003e\n \u003cli\u003eOperating temperature range: -20°C to 70°C\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n \u003cth\u003eFunction\u003c\/th\u003e\n \u003ctd\u003eMomentary action\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eContact Arrangement\u003c\/th\u003e\n \u003ctd\u003e1 make contact SPST, N.O.\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eTravel\u003c\/th\u003e\n \u003ctd\u003e0.30 mm ± 0.15 mm\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eOperating Life\u003c\/th\u003e\n \u003ctd\u003e200,000 cycles\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eOperating Force\u003c\/th\u003e\n \u003ctd\u003e180 gf ± 50 or 250 gf ± 50\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eMax Voltage\u003c\/th\u003e\n \u003ctd\u003e12 VDC\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eMax Current\u003c\/th\u003e\n \u003ctd\u003e50 mA\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eDielectric Strength\u003c\/th\u003e\n \u003ctd\u003e250 V AC (1 min)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eContact Resistance\u003c\/th\u003e\n \u003ctd\u003e\u0026lt;100 mΩ\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eInsulation Resistance\u003c\/th\u003e\n \u003ctd\u003e\u0026gt;100 MΩ\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eBounce Time\u003c\/th\u003e\n \u003ctd\u003e\u0026lt; 5 ms\u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eEnvironmental \u0026amp; Process Details\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eOperating temperature: -20°C to 70°C\u003c\/li\u003e\n \u003cli\u003eSoldering methods: Infrared reflow (IEC 61760-1) and wave soldering compatible with lead-free solder profiles\u003c\/li\u003e\n \u003cli\u003ePackage options include tape \u0026amp; reel for SMT versions and plastic bags for THT versions\u003c\/li\u003e\n \u003cli\u003eParticularly suitable for automated assembly processes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Options \u0026amp; Ordering\u003c\/h3\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n \u003cth\u003eSwitch Height\u003c\/th\u003e\n \u003ctd\u003e4.3 mm, 7.3 mm, 8.5 mm, 12.0 mm (other heights available upon request)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eActuator Style\u003c\/th\u003e\n \u003ctd\u003eRound, Square Snap Fit\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eTermination \u0026amp; Packaging\u003c\/th\u003e\n \u003ctd\u003eTHT in bags, SMT in tape \u0026amp; reel\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003ePegs Option\u003c\/th\u003e\n \u003ctd\u003eWith pegs (only for SMT round and square snap fit actuators)\u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePart Number \u0026amp; Additional Details\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e PTS125SK85SMTR2LFS\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e LITTELFUSE \/ C\u0026amp;K COMPONENTS\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e CN\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eUOM:\u003c\/strong\u003e EA\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eECCN:\u003c\/strong\u003e EAR99\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003ePackage Type:\u003c\/strong\u003e TAPE\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDatasheet \u0026amp; Resources\u003c\/h3\u003e\n\u003cp\u003eFor detailed technical specifications, download the datasheet here: \u003ca href=\"https:\/\/4donline.ihs.com\/images\/VipMasterIC\/IC\/CKCI\/CKCI-S-A0001404160\/CKCI-S-A0001796640-1.pdf?hkey=82A29B72BDB3BD67C626B77C2F032848\" target=\"_blank\"\u003eCK PTS125 Series Datasheet\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003eNote: Specifications and dimensions are subject to change. Please verify details with the datasheet or contact customer service for custom options.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eDatasheet was not processed please search the internet for the part number for more details.\u003c\/em\u003e\u003c\/p\u003e\u003cbr\u003e"}