Introducing the OMRON D2A-1238E, a high-precision, ultra subminiature snap acting/limit switch designed for demanding electronic applications. Manufactured in China, this SPDT (Single Pole Double Throw) switch offers reliable performance with a compact form factor, making it ideal for space-constrained environments.
Designed for high durability with a minimum of 50,000 switching operations.
Operating force options include 0.98 N (standard) and 0.49 N (low force).
Permissible operating speed between 1 mm to 500 mm/s.
Operating temperature range from -10°C to +80°C with humidity up to 85%.
Meets RoHS compliance standards.
Technical Specifications
Contact Form
SPDT (Single Pole Double Throw)
Contact Material
Silver plated
Rated Voltage
30 VDC at 0.1 A resistive load
Maximum Operating Force
0.98 N (standard), 0.49 N (low force)
Durability
50,000 operations minimum (at 30 operations/min)
Insulation Resistance
≥ 100 MΩ at 250 VDC
Contact Resistance (initial)
≤ 50 mΩ
Dielectric Strength
250 VAC 50/60 Hz for 1 minute
Vibration Resistance
Malfunction between 10 to 55 Hz, 1.5 mm double amplitude
Shock Resistance
Durability up to 1,000 m/s²; Malfunction up to 300 m/s²
Ambient Temperature
-10°C to +80°C
Ambient Humidity
Up to 85%
Weight
Approximately 0.3 g
Dimensions & Mounting
Compact design with mounting holes at 5.5 mm diameter, suitable for PCB mounting with 2.54 mm pitch. Dimensions and operating characteristics are optimized for precise control in limited spaces.
Additional Information
For detailed mounting instructions, precautions, and application guidance, please refer to the datasheet linked above. Proper soldering and mounting practices are essential to ensure switch longevity and performance.
Note: The ratings and specifications are initial values. For specific application conditions, please consult your OMRON sales representative.
Disclaimers: Application examples are for reference only. Confirm equipment functions and safety before use. Consult your OMRON representative for applications outside standard conditions, especially for critical systems such as medical, aerospace, or safety-related equipment.
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.
{"id":10024004682045,"title":"D2A 1238E","handle":"d2a-1238e","description":"\u003ch3\u003eOMRON ELECTRONIC COMPONENTS D2A-1238E Limit Switch\u003c\/h3\u003e\n\u003cp\u003eIntroducing the OMRON D2A-1238E, a high-precision, ultra subminiature snap acting\/limit switch designed for demanding electronic applications. Manufactured in China, this SPDT (Single Pole Double Throw) switch offers reliable performance with a compact form factor, making it ideal for space-constrained environments.\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e D2A 1238E\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e OMRON ELECTRONIC COMPONENTS\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e CN\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eUnit of Measure:\u003c\/strong\u003e Each (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 Tray\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eDatasheet:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-om\/om-d2a-1238e.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eUltra compact design with a 3 mm stroke length for space-saving integration.\u003c\/li\u003e\n \u003cli\u003eBuilt-in slide mechanism allows selection of shorting or non-shorting switching timing.\u003c\/li\u003e\n \u003cli\u003eSilver-plated contacts ensure reliable electrical conduction.\u003c\/li\u003e\n \u003cli\u003eRated for resistive loads up to 30 VDC at 0.1 A.\u003c\/li\u003e\n \u003cli\u003eDesigned for high durability with a minimum of 50,000 switching operations.\u003c\/li\u003e\n \u003cli\u003eOperating force options include 0.98 N (standard) and 0.49 N (low force).\u003c\/li\u003e\n \u003cli\u003ePermissible operating speed between 1 mm to 500 mm\/s.\u003c\/li\u003e\n \u003cli\u003eOperating temperature range from -10°C to +80°C with humidity up to 85%.\u003c\/li\u003e\n \u003cli\u003eMeets RoHS compliance standards.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"5\" cellspacing=\"0\"\u003e\n \u003ctr\u003e\n \u003cth\u003eContact Form\u003c\/th\u003e\n \u003ctd\u003eSPDT (Single Pole Double Throw)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eContact Material\u003c\/th\u003e\n \u003ctd\u003eSilver plated\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eRated Voltage\u003c\/th\u003e\n \u003ctd\u003e30 VDC at 0.1 A resistive load\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eMaximum Operating Force\u003c\/th\u003e\n \u003ctd\u003e0.98 N (standard), 0.49 N (low force)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eDurability\u003c\/th\u003e\n \u003ctd\u003e50,000 operations minimum (at 30 operations\/min)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eInsulation Resistance\u003c\/th\u003e\n \u003ctd\u003e≥ 100 MΩ at 250 VDC\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eContact Resistance (initial)\u003c\/th\u003e\n \u003ctd\u003e≤ 50 mΩ\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eDielectric Strength\u003c\/th\u003e\n \u003ctd\u003e250 VAC 50\/60 Hz for 1 minute\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eVibration Resistance\u003c\/th\u003e\n \u003ctd\u003eMalfunction between 10 to 55 Hz, 1.5 mm double amplitude\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eShock Resistance\u003c\/th\u003e\n \u003ctd\u003eDurability up to 1,000 m\/s²; Malfunction up to 300 m\/s²\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eAmbient Temperature\u003c\/th\u003e\n \u003ctd\u003e-10°C to +80°C\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eAmbient Humidity\u003c\/th\u003e\n \u003ctd\u003eUp to 85%\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eWeight\u003c\/th\u003e\n \u003ctd\u003eApproximately 0.3 g\u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eDimensions \u0026amp; Mounting\u003c\/h3\u003e\n\u003cp\u003eCompact design with mounting holes at 5.5 mm diameter, suitable for PCB mounting with 2.54 mm pitch. Dimensions and operating characteristics are optimized for precise control in limited spaces.\u003c\/p\u003e\n\u003ch3\u003eAdditional Information\u003c\/h3\u003e\n\u003cp\u003eFor detailed mounting instructions, precautions, and application guidance, please refer to the datasheet linked above. Proper soldering and mounting practices are essential to ensure switch longevity and performance.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNote: The ratings and specifications are initial values. For specific application conditions, please consult your OMRON sales representative.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eDisclaimers: Application examples are for reference only. Confirm equipment functions and safety before use. Consult your OMRON representative for applications outside standard conditions, especially for critical systems such as medical, aerospace, or safety-related equipment.\u003c\/p\u003e\u003cbr\u003e","published_at":"2025-08-14T00:45:35+05:30","created_at":"2025-08-14T00:45:35+05:30","vendor":"Waldom Electonics","type":"Switches","tags":["1A","IMPORT_CSV","Limit","OMRON-ELE","SPDT","Switch","WLDM"],"price":10394,"price_min":10394,"price_max":10394,"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":50617268404541,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"D2A 1238E","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"D2A 1238E","public_title":null,"options":["Default Title"],"price":10394,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"D2A 1238E","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/54484990.jpg?v=1755112537"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/54484990.jpg?v=1755112537","options":["Title"],"media":[{"alt":null,"id":45824903643453,"position":1,"preview_image":{"aspect_ratio":1.0,"height":640,"width":640,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/54484990.jpg?v=1755112537"},"aspect_ratio":1.0,"height":640,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/54484990.jpg?v=1755112537","width":640}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eOMRON ELECTRONIC COMPONENTS D2A-1238E Limit Switch\u003c\/h3\u003e\n\u003cp\u003eIntroducing the OMRON D2A-1238E, a high-precision, ultra subminiature snap acting\/limit switch designed for demanding electronic applications. Manufactured in China, this SPDT (Single Pole Double Throw) switch offers reliable performance with a compact form factor, making it ideal for space-constrained environments.\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e D2A 1238E\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e OMRON ELECTRONIC COMPONENTS\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e CN\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eUnit of Measure:\u003c\/strong\u003e Each (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 Tray\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eDatasheet:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-om\/om-d2a-1238e.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eUltra compact design with a 3 mm stroke length for space-saving integration.\u003c\/li\u003e\n \u003cli\u003eBuilt-in slide mechanism allows selection of shorting or non-shorting switching timing.\u003c\/li\u003e\n \u003cli\u003eSilver-plated contacts ensure reliable electrical conduction.\u003c\/li\u003e\n \u003cli\u003eRated for resistive loads up to 30 VDC at 0.1 A.\u003c\/li\u003e\n \u003cli\u003eDesigned for high durability with a minimum of 50,000 switching operations.\u003c\/li\u003e\n \u003cli\u003eOperating force options include 0.98 N (standard) and 0.49 N (low force).\u003c\/li\u003e\n \u003cli\u003ePermissible operating speed between 1 mm to 500 mm\/s.\u003c\/li\u003e\n \u003cli\u003eOperating temperature range from -10°C to +80°C with humidity up to 85%.\u003c\/li\u003e\n \u003cli\u003eMeets RoHS compliance standards.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"5\" cellspacing=\"0\"\u003e\n \u003ctr\u003e\n \u003cth\u003eContact Form\u003c\/th\u003e\n \u003ctd\u003eSPDT (Single Pole Double Throw)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eContact Material\u003c\/th\u003e\n \u003ctd\u003eSilver plated\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eRated Voltage\u003c\/th\u003e\n \u003ctd\u003e30 VDC at 0.1 A resistive load\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eMaximum Operating Force\u003c\/th\u003e\n \u003ctd\u003e0.98 N (standard), 0.49 N (low force)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eDurability\u003c\/th\u003e\n \u003ctd\u003e50,000 operations minimum (at 30 operations\/min)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eInsulation Resistance\u003c\/th\u003e\n \u003ctd\u003e≥ 100 MΩ at 250 VDC\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eContact Resistance (initial)\u003c\/th\u003e\n \u003ctd\u003e≤ 50 mΩ\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eDielectric Strength\u003c\/th\u003e\n \u003ctd\u003e250 VAC 50\/60 Hz for 1 minute\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eVibration Resistance\u003c\/th\u003e\n \u003ctd\u003eMalfunction between 10 to 55 Hz, 1.5 mm double amplitude\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eShock Resistance\u003c\/th\u003e\n \u003ctd\u003eDurability up to 1,000 m\/s²; Malfunction up to 300 m\/s²\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eAmbient Temperature\u003c\/th\u003e\n \u003ctd\u003e-10°C to +80°C\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eAmbient Humidity\u003c\/th\u003e\n \u003ctd\u003eUp to 85%\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eWeight\u003c\/th\u003e\n \u003ctd\u003eApproximately 0.3 g\u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eDimensions \u0026amp; Mounting\u003c\/h3\u003e\n\u003cp\u003eCompact design with mounting holes at 5.5 mm diameter, suitable for PCB mounting with 2.54 mm pitch. Dimensions and operating characteristics are optimized for precise control in limited spaces.\u003c\/p\u003e\n\u003ch3\u003eAdditional Information\u003c\/h3\u003e\n\u003cp\u003eFor detailed mounting instructions, precautions, and application guidance, please refer to the datasheet linked above. Proper soldering and mounting practices are essential to ensure switch longevity and performance.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNote: The ratings and specifications are initial values. For specific application conditions, please consult your OMRON sales representative.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eDisclaimers: Application examples are for reference only. Confirm equipment functions and safety before use. Consult your OMRON representative for applications outside standard conditions, especially for critical systems such as medical, aerospace, or safety-related equipment.\u003c\/p\u003e\u003cbr\u003e"}
