Product Description for CK EDM650AUAC0LFS Tactile Switches SPST MOM. PCB GOLD
The CK EDM650AUAC0LFS is a high-performance, sealed tact switch designed for panel and instrumentation applications. Manufactured by Littelfuse / C&K Components in France, this SPST (Single Pole Single Throw) momentary tactile switch features a gold contact surface for enhanced conductivity and durability. It complies with RoHS regulations and is supplied in a tray package for easy handling and installation.
Key Features & Benefits
Sealed IP67 disc contact design for reliable operation in harsh environments
Short travel distance (approximately 0.3 mm) for precise actuation
Excellent tactile feedback for user responsiveness
Available with three actuation forces: 4.5 N (450 g), 6.5 N (650 g), and 2.4 N (240 g)
Suitable for aerospace, radio equipment, and instrumentation panels
Electrical & Mechanical Specifications
Parameter
Details
Min./Max. Voltage
20 mVDC - 100 VDC
Min./Max. Current
1 mA to 100 mA (Silver contacts), 50 μA to 50 mA (Gold contacts)
Dielectric Strength
≥ 250 Vrms
Contact Resistance
≤ 100 mΩ
Insulation Resistance
Initial ≥ 1 GΩ; After damp heat ≥ 10 MΩ
Bounce Time
≤ 3 ms
Mechanical Characteristics
Type
Operating Force (N)
Tactile Feeling ≥ %
Return Force (N)
Travel (mm)
EDM450XXX LFX
4.5 (450 g) ± 25%
≥ 25%
≥ 1
0.5 ± 0.25
EDM650XXX LFX
6.5 (650 g) ± 25%
≥ 25%
≥ 1.6
0.6 ± 0.25
Switch Action Principle
The disc contact consists of two conductive dome diaphragms separated by an insulator. Under pressure, the upper diaphragm collapses to establish contact with the lower diaphragm, providing a reliable switch operation.
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":10027631739197,"title":"EDM650AUAC0LFS","handle":"edm650auac0lfs","description":"\u003ch3\u003eProduct Description for CK EDM650AUAC0LFS Tactile Switches SPST MOM. PCB GOLD\u003c\/h3\u003e\n\u003cp\u003eThe CK EDM650AUAC0LFS is a high-performance, sealed tact switch designed for panel and instrumentation applications. Manufactured by Littelfuse \/ C\u0026amp;K Components in France, this SPST (Single Pole Single Throw) momentary tactile switch features a gold contact surface for enhanced conductivity and durability. It complies with RoHS regulations and is supplied in a tray package for easy handling and installation.\u003c\/p\u003e\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eSealed IP67 disc contact design for reliable operation in harsh environments\u003c\/li\u003e\n \u003cli\u003eShort travel distance (approximately 0.3 mm) for precise actuation\u003c\/li\u003e\n \u003cli\u003eExcellent tactile feedback for user responsiveness\u003c\/li\u003e\n \u003cli\u003eAvailable with three actuation forces: 4.5 N (450 g), 6.5 N (650 g), and 2.4 N (240 g)\u003c\/li\u003e\n \u003cli\u003eSelf-cleaning contact mechanism ensures long-term reliability\u003c\/li\u003e\n \u003cli\u003eSuitable for aerospace, radio equipment, and instrumentation panels\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eElectrical \u0026amp; Mechanical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eParameter\u003c\/th\u003e\n \u003cth\u003eDetails\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003eMin.\/Max. Voltage\u003c\/td\u003e\n \u003ctd\u003e20 mVDC - 100 VDC\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMin.\/Max. Current\u003c\/td\u003e\n \u003ctd\u003e1 mA to 100 mA (Silver contacts), 50 μA to 50 mA (Gold contacts)\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 \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eContact Resistance\u003c\/td\u003e\n \u003ctd\u003e≤ 100 mΩ\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eInsulation Resistance\u003c\/td\u003e\n \u003ctd\u003eInitial ≥ 1 GΩ; After damp heat ≥ 10 MΩ\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 \u003c\/tr\u003e\n \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eMechanical Characteristics\u003c\/h3\u003e\n\u003ctable\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eType\u003c\/th\u003e\n \u003cth\u003eOperating Force (N)\u003c\/th\u003e\n \u003cth\u003eTactile Feeling ≥ %\u003c\/th\u003e\n \u003cth\u003eReturn Force (N)\u003c\/th\u003e\n \u003cth\u003eTravel (mm)\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003eEDM450XXX LFX\u003c\/td\u003e\n \u003ctd\u003e4.5 (450 g) ± 25%\u003c\/td\u003e\n \u003ctd\u003e≥ 25%\u003c\/td\u003e\n \u003ctd\u003e≥ 1\u003c\/td\u003e\n \u003ctd\u003e0.5 ± 0.25\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eEDM650XXX LFX\u003c\/td\u003e\n \u003ctd\u003e6.5 (650 g) ± 25%\u003c\/td\u003e\n \u003ctd\u003e≥ 25%\u003c\/td\u003e\n \u003ctd\u003e≥ 1.6\u003c\/td\u003e\n \u003ctd\u003e0.6 ± 0.25\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eSwitch Action Principle\u003c\/h3\u003e\n\u003cp\u003eThe disc contact consists of two conductive dome diaphragms separated by an insulator. Under pressure, the upper diaphragm collapses to establish contact with the lower diaphragm, providing a reliable switch operation.\u003c\/p\u003e\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003ePart Number: EDM650AUAC0LFS\u003c\/li\u003e\n \u003cli\u003eManufacturer: Littelfuse \/ C\u0026amp;K Components\u003c\/li\u003e\n \u003cli\u003eCountry of Origin: France (FR)\u003c\/li\u003e\n \u003cli\u003eUnit of Measure: Each (EA)\u003c\/li\u003e\n \u003cli\u003eECCN: EAR99\u003c\/li\u003e\n \u003cli\u003ePackage Type: Tray\u003c\/li\u003e\n \u003cli\u003eDatasheet: \u003ca href=\"https:\/\/ckswitches.com\/media\/1336\/ed.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor more detailed specifications and application guidance, please refer to the datasheet linked above.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDisclaimer:\u003c\/strong\u003e Specifications are subject to change without notice. Please verify all details before finalizing your purchase.\u003c\/p\u003e\u003cbr\u003e","published_at":"2025-08-16T01:12:43+05:30","created_at":"2025-08-16T01:12:43+05:30","vendor":"Waldom Electonics","type":"","tags":["IMPORT_CSV","IMPORT_PT2","LITTE-CKCO","PCB","SPST","Switch","WLDM"],"price":64722,"price_min":64722,"price_max":64722,"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":50625695908157,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"EDM650AUAC0LFS","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"EDM650AUAC0LFS","public_title":null,"options":["Default Title"],"price":64722,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"EDM650AUAC0LFS","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/EDM650AUAC0LFS_11118335_7f949824.jpg?v=1755286966"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/EDM650AUAC0LFS_11118335_7f949824.jpg?v=1755286966","options":["Title"],"media":[{"alt":null,"id":45859177005373,"position":1,"preview_image":{"aspect_ratio":1.0,"height":200,"width":200,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/EDM650AUAC0LFS_11118335_7f949824.jpg?v=1755286966"},"aspect_ratio":1.0,"height":200,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/EDM650AUAC0LFS_11118335_7f949824.jpg?v=1755286966","width":200}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eProduct Description for CK EDM650AUAC0LFS Tactile Switches SPST MOM. PCB GOLD\u003c\/h3\u003e\n\u003cp\u003eThe CK EDM650AUAC0LFS is a high-performance, sealed tact switch designed for panel and instrumentation applications. Manufactured by Littelfuse \/ C\u0026amp;K Components in France, this SPST (Single Pole Single Throw) momentary tactile switch features a gold contact surface for enhanced conductivity and durability. It complies with RoHS regulations and is supplied in a tray package for easy handling and installation.\u003c\/p\u003e\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eSealed IP67 disc contact design for reliable operation in harsh environments\u003c\/li\u003e\n \u003cli\u003eShort travel distance (approximately 0.3 mm) for precise actuation\u003c\/li\u003e\n \u003cli\u003eExcellent tactile feedback for user responsiveness\u003c\/li\u003e\n \u003cli\u003eAvailable with three actuation forces: 4.5 N (450 g), 6.5 N (650 g), and 2.4 N (240 g)\u003c\/li\u003e\n \u003cli\u003eSelf-cleaning contact mechanism ensures long-term reliability\u003c\/li\u003e\n \u003cli\u003eSuitable for aerospace, radio equipment, and instrumentation panels\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eElectrical \u0026amp; Mechanical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eParameter\u003c\/th\u003e\n \u003cth\u003eDetails\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003eMin.\/Max. Voltage\u003c\/td\u003e\n \u003ctd\u003e20 mVDC - 100 VDC\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMin.\/Max. Current\u003c\/td\u003e\n \u003ctd\u003e1 mA to 100 mA (Silver contacts), 50 μA to 50 mA (Gold contacts)\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 \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eContact Resistance\u003c\/td\u003e\n \u003ctd\u003e≤ 100 mΩ\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eInsulation Resistance\u003c\/td\u003e\n \u003ctd\u003eInitial ≥ 1 GΩ; After damp heat ≥ 10 MΩ\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 \u003c\/tr\u003e\n \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eMechanical Characteristics\u003c\/h3\u003e\n\u003ctable\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eType\u003c\/th\u003e\n \u003cth\u003eOperating Force (N)\u003c\/th\u003e\n \u003cth\u003eTactile Feeling ≥ %\u003c\/th\u003e\n \u003cth\u003eReturn Force (N)\u003c\/th\u003e\n \u003cth\u003eTravel (mm)\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003eEDM450XXX LFX\u003c\/td\u003e\n \u003ctd\u003e4.5 (450 g) ± 25%\u003c\/td\u003e\n \u003ctd\u003e≥ 25%\u003c\/td\u003e\n \u003ctd\u003e≥ 1\u003c\/td\u003e\n \u003ctd\u003e0.5 ± 0.25\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eEDM650XXX LFX\u003c\/td\u003e\n \u003ctd\u003e6.5 (650 g) ± 25%\u003c\/td\u003e\n \u003ctd\u003e≥ 25%\u003c\/td\u003e\n \u003ctd\u003e≥ 1.6\u003c\/td\u003e\n \u003ctd\u003e0.6 ± 0.25\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eSwitch Action Principle\u003c\/h3\u003e\n\u003cp\u003eThe disc contact consists of two conductive dome diaphragms separated by an insulator. Under pressure, the upper diaphragm collapses to establish contact with the lower diaphragm, providing a reliable switch operation.\u003c\/p\u003e\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003ePart Number: EDM650AUAC0LFS\u003c\/li\u003e\n \u003cli\u003eManufacturer: Littelfuse \/ C\u0026amp;K Components\u003c\/li\u003e\n \u003cli\u003eCountry of Origin: France (FR)\u003c\/li\u003e\n \u003cli\u003eUnit of Measure: Each (EA)\u003c\/li\u003e\n \u003cli\u003eECCN: EAR99\u003c\/li\u003e\n \u003cli\u003ePackage Type: Tray\u003c\/li\u003e\n \u003cli\u003eDatasheet: \u003ca href=\"https:\/\/ckswitches.com\/media\/1336\/ed.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor more detailed specifications and application guidance, please refer to the datasheet linked above.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDisclaimer:\u003c\/strong\u003e Specifications are subject to change without notice. Please verify all details before finalizing your purchase.\u003c\/p\u003e\u003cbr\u003e"}
I'm particularly impressed with how carefully the header pins are packed for the RP2350-PiZero, they arrived in perfect condition without any bent pins, which has been a persistent issue with other competitors. This attention to packaging detail really stands out.
I also received the latest A4 revision of the RP2350, which shows you maintain current inventory, that's really valuable for customers who want the most up to date components.
The delivery was quick and hassle free throughout. I'll definitely be recommending you to others!
App feedback: The discounts offered through the app are a nice bonus, but the component search function could be improved to match the ease of use on the website version. The rest of the app functions work well.
