The CK PTS125SM85-2LFS is a high-quality tactile switch manufactured by LITTELFUSE / C&K COMPONENTS, made in China (COO: CN). Designed for reliable operation in various electronic applications, this switch features a 12 mm tactile actuation with a force of 180gF and a maximum voltage of 12 VDC. It is RoHS compliant and available in a standard packaging unit of each (EA).
Key Features & Benefits
12 mm tactile switch with a snap-fit actuator option
Available with THT and SMT terminations for versatile mounting options
Long-lasting with high responsiveness, suitable for industrial, consumer, instrumentation, and computing equipment
Electrical ratings: Max. Voltage 12 VDC, Max. Current 50 mA
Mechanical specifications include contact resistance < 100 mΩ and dielectric strength of 250 V AC for 1 minute
Reliable bounce time of less than 5 ms
RoHS compliant, silver-plated contacts
Specifications
Function
Momentary action
Contact Arrangement
1 make contact, SPST, N.O.
Terminals
PC pins for THT and G type for SMT
Travel
130 gf 0.20 mm, 180 gf 0.25 mm, 250 gf 0.30 mm, 350 gf 0.35 mm
Packaging
Dimensions of reels according to EIA 481B; External diameter 330 mm
Electrical & Mechanical Specifications
Max. Voltage
12 VDC
Max. Current
50 mA
Dielectric Strength
250 V AC (1 min)
Contact Resistance
< 100 mΩ
Insulation Resistance
> 100 MΩ
Soldering Style
THT
Height
All heights available, including 8.5 mm
Packaging
Plastic bag, parts per packaging: 500
Product Options & Ordering
The PTS125 series offers various actuator heights, actuation forces, and termination options. For example, the 8.5 mm round actuator version is RoHS compliant and suitable for applications requiring a compact tactile switch with high reliability. Custom options and different life cycle ratings are available; please consult the datasheet for detailed configurations.
Additional Information
For detailed mechanical drawings, recommended PCB layouts, and schematic diagrams, please refer to the datasheet.
Note: The specifications listed are for standard options. For custom configurations or specific applications, contact your local C&K representative.
Disclaimer
Specifications are subject to change without notice. The PTS series is not certified for automotive applications and no PPAP is available. Please verify suitability for your application before use.
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":10027965120829,"title":"PTS125SM85-2LFS","handle":"pts125sm85-2lfs","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eCK PTS125SM85-2LFS\u003c\/strong\u003e is a high-quality tactile switch manufactured by \u003cstrong\u003eLITTELFUSE \/ C\u0026amp;K COMPONENTS\u003c\/strong\u003e, made in China (COO: CN). Designed for reliable operation in various electronic applications, this switch features a 12 mm tactile actuation with a force of 180gF and a maximum voltage of 12 VDC. It is RoHS compliant and available in a standard packaging unit of each (EA).\u003c\/p\u003e\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e12 mm tactile switch with a snap-fit actuator option\u003c\/li\u003e\n\u003cli\u003eAvailable with THT and SMT terminations for versatile mounting options\u003c\/li\u003e\n\u003cli\u003eLong-lasting with high responsiveness, suitable for industrial, consumer, instrumentation, and computing equipment\u003c\/li\u003e\n\u003cli\u003eElectrical ratings: Max. Voltage 12 VDC, Max. Current 50 mA\u003c\/li\u003e\n\u003cli\u003eMechanical specifications include contact resistance \u0026lt; 100 mΩ and dielectric strength of 250 V AC for 1 minute\u003c\/li\u003e\n\u003cli\u003eReliable bounce time of less than 5 ms\u003c\/li\u003e\n\u003cli\u003eRoHS compliant, silver-plated contacts\u003c\/li\u003e\n\u003c\/ul\u003e\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\u003eTerminals\u003c\/th\u003e\n\u003ctd\u003ePC pins for THT and G type for SMT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTravel\u003c\/th\u003e\n\u003ctd\u003e130 gf 0.20 mm, 180 gf 0.25 mm, 250 gf 0.30 mm, 350 gf 0.35 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePackaging\u003c\/th\u003e\n\u003ctd\u003eDimensions of reels according to EIA 481B; External diameter 330 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eElectrical \u0026amp; Mechanical Specifications\u003c\/h3\u003e\n\u003ctable\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\u003eSoldering Style\u003c\/th\u003e\n\u003ctd\u003eTHT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeight\u003c\/th\u003e\n\u003ctd\u003eAll heights available, including 8.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePackaging\u003c\/th\u003e\n\u003ctd\u003ePlastic bag, parts per packaging: 500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eProduct Options \u0026amp; Ordering\u003c\/h3\u003e\n\u003cp\u003eThe PTS125 series offers various actuator heights, actuation forces, and termination options. For example, the 8.5 mm round actuator version is RoHS compliant and suitable for applications requiring a compact tactile switch with high reliability. Custom options and different life cycle ratings are available; please consult the datasheet for detailed configurations.\u003c\/p\u003e\n\u003ch3\u003eAdditional Information\u003c\/h3\u003e\n\u003cp\u003eFor detailed mechanical drawings, recommended PCB layouts, and schematic diagrams, please refer to the \u003ca href=\"https:\/\/ckswitches.com\/media\/1462\/pts125.pdf\" target=\"_blank\"\u003edatasheet\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e The specifications listed are for standard options. For custom configurations or specific applications, contact your local C\u0026amp;K representative.\u003c\/p\u003e\n\u003ch3\u003eDisclaimer\u003c\/h3\u003e\n\u003cp\u003eSpecifications are subject to change without notice. The PTS series is not certified for automotive applications and no PPAP is available. Please verify suitability for your application before use.\u003c\/p\u003e\u003cbr\u003e","published_at":"2025-08-16T05:18:27+05:30","created_at":"2025-08-16T05:18:28+05:30","vendor":"Waldom Electonics","type":"Switches","tags":["12VDC","5mm","IMPORT_CSV","IMPORT_PT2","Keypad","LITTE-CKCO","Switch","WLDM"],"price":2938,"price_min":2938,"price_max":2938,"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":50626363785533,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"PTS125SM85-2LFS","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"PTS125SM85-2LFS","public_title":null,"options":["Default Title"],"price":2938,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"PTS125SM85-2LFS","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/52337687.png?v=1755301710"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/52337687.png?v=1755301710","options":["Title"],"media":[{"alt":null,"id":45862540345661,"position":1,"preview_image":{"aspect_ratio":1.0,"height":400,"width":400,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/52337687.png?v=1755301710"},"aspect_ratio":1.0,"height":400,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/52337687.png?v=1755301710","width":400}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eCK PTS125SM85-2LFS\u003c\/strong\u003e is a high-quality tactile switch manufactured by \u003cstrong\u003eLITTELFUSE \/ C\u0026amp;K COMPONENTS\u003c\/strong\u003e, made in China (COO: CN). Designed for reliable operation in various electronic applications, this switch features a 12 mm tactile actuation with a force of 180gF and a maximum voltage of 12 VDC. It is RoHS compliant and available in a standard packaging unit of each (EA).\u003c\/p\u003e\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e12 mm tactile switch with a snap-fit actuator option\u003c\/li\u003e\n\u003cli\u003eAvailable with THT and SMT terminations for versatile mounting options\u003c\/li\u003e\n\u003cli\u003eLong-lasting with high responsiveness, suitable for industrial, consumer, instrumentation, and computing equipment\u003c\/li\u003e\n\u003cli\u003eElectrical ratings: Max. Voltage 12 VDC, Max. Current 50 mA\u003c\/li\u003e\n\u003cli\u003eMechanical specifications include contact resistance \u0026lt; 100 mΩ and dielectric strength of 250 V AC for 1 minute\u003c\/li\u003e\n\u003cli\u003eReliable bounce time of less than 5 ms\u003c\/li\u003e\n\u003cli\u003eRoHS compliant, silver-plated contacts\u003c\/li\u003e\n\u003c\/ul\u003e\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\u003eTerminals\u003c\/th\u003e\n\u003ctd\u003ePC pins for THT and G type for SMT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTravel\u003c\/th\u003e\n\u003ctd\u003e130 gf 0.20 mm, 180 gf 0.25 mm, 250 gf 0.30 mm, 350 gf 0.35 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePackaging\u003c\/th\u003e\n\u003ctd\u003eDimensions of reels according to EIA 481B; External diameter 330 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eElectrical \u0026amp; Mechanical Specifications\u003c\/h3\u003e\n\u003ctable\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\u003eSoldering Style\u003c\/th\u003e\n\u003ctd\u003eTHT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeight\u003c\/th\u003e\n\u003ctd\u003eAll heights available, including 8.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePackaging\u003c\/th\u003e\n\u003ctd\u003ePlastic bag, parts per packaging: 500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eProduct Options \u0026amp; Ordering\u003c\/h3\u003e\n\u003cp\u003eThe PTS125 series offers various actuator heights, actuation forces, and termination options. For example, the 8.5 mm round actuator version is RoHS compliant and suitable for applications requiring a compact tactile switch with high reliability. Custom options and different life cycle ratings are available; please consult the datasheet for detailed configurations.\u003c\/p\u003e\n\u003ch3\u003eAdditional Information\u003c\/h3\u003e\n\u003cp\u003eFor detailed mechanical drawings, recommended PCB layouts, and schematic diagrams, please refer to the \u003ca href=\"https:\/\/ckswitches.com\/media\/1462\/pts125.pdf\" target=\"_blank\"\u003edatasheet\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e The specifications listed are for standard options. For custom configurations or specific applications, contact your local C\u0026amp;K representative.\u003c\/p\u003e\n\u003ch3\u003eDisclaimer\u003c\/h3\u003e\n\u003cp\u003eSpecifications are subject to change without notice. The PTS series is not certified for automotive applications and no PPAP is available. Please verify suitability for your application before use.\u003c\/p\u003e\u003cbr\u003e"}
