Discover the reliable and easy-to-mount thumbwheel switch from OMRON ELECTRONIC COMPONENTS, designed for precise digital control applications. This switch features dustproof construction, ensuring high performance even under adverse environmental conditions, and includes pushbuttons for positive forward and reverse rotation of each digital wheel.
Refer to the datasheet for detailed dimensions in millimeters and inches. Notable dimensions include:
Switch with output code “06”: 32.5 mm (1.28 inches)
Switch with output code “07”: 43.5 mm (1.71 inches)
Accessories & Additional Options
Accessory
Part Number
End Cap (for securing switch to panel)
A7B-M (-1)
Spacer
A7B-PI (-1)
Solder Terminal Connector
A7B-C
PC Terminal Connector
A7B-CP
Note: When ordering, specify model numbers and quantities for switch units and accessories. Switch units and accessories are shipped unassembled. Models with suffix -S include two stopper pins as standard.
Additional Information
Switch case, end caps, and spacers are made of polyacetal resin; window plates are polycarbonate resin.
For detailed dimensions and mounting options, please consult the datasheet linked above.
For more details, please search the internet for the part number A7BS-203-1.
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{"id":10026792026429,"title":"A7BS-203-1","handle":"a7bs-203-1","description":"\u003ch3\u003eOMRON ELECTRONIC COMPONENTS A7BS-203-1 Thumbwheel Switch\u003c\/h3\u003e\n\u003cp\u003eDiscover the reliable and easy-to-mount thumbwheel switch from OMRON ELECTRONIC COMPONENTS, designed for precise digital control applications. This switch features dustproof construction, ensuring high performance even under adverse environmental conditions, and includes pushbuttons for positive forward and reverse rotation of each digital wheel.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e A7BS-203-1\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 Japan (JP)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit of Measure:\u003c\/strong\u003e EA (Each)\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 BLK (Black)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDatasheet:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-om\/om-a7bs-203-1.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\u003eDustproof construction for reliable performance at low voltage and small current\u003c\/li\u003e\n\u003cli\u003ePositive (+) and negative (–) pushbuttons for easy digital wheel rotation\u003c\/li\u003e\n\u003cli\u003eFront mounting solder terminals for secure installation\u003c\/li\u003e\n\u003cli\u003eAvailable with stopper pins for enhanced stability (model dependent)\u003c\/li\u003e\n\u003cli\u003eMade of durable polyacetal resin with polycarbonate window plate\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\u003eCharacteristics\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSwitching Capacity\u003c\/td\u003e\n\u003ctd\u003e1 mA to 0.1 A 50 VAC\/28 VDC (resistive load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCarry Current\u003c\/td\u003e\n\u003ctd\u003eMaximum 1 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Resistance\u003c\/td\u003e\n\u003ctd\u003eMax. 200 mΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInsulation Resistance\u003c\/td\u003e\n\u003ctd\u003eMin. 10 MΩ at 500 VDC between non-connected terminals; 1000 MΩ between each terminal and non-current-carrying part\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDielectric Strength\u003c\/td\u003e\n\u003ctd\u003e600 VAC for 1 minute between non-connected terminals; 1000 VAC for 1 minute between each terminal and non-current-carrying part\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Force\u003c\/td\u003e\n\u003ctd\u003eMax. 550 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVibration Resistance\u003c\/td\u003e\n\u003ctd\u003e10 to 55 Hz, 1.5 mm double amplitude\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShock Resistance\u003c\/td\u003e\n\u003ctd\u003eApprox. 50 G (500 m\/s²)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-10°C to 65°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-20°C to 80°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHumidity\u003c\/td\u003e\n\u003ctd\u003e45% to 85% RH max.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eService Life\u003c\/td\u003e\n\u003ctd\u003eMechanical: 100,000 operations; Electrical: 50,000 operations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eApprox. 4.1 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eDimensions\u003c\/h3\u003e\n\u003cp\u003eRefer to the datasheet for detailed dimensions in millimeters and inches. Notable dimensions include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSwitch with output code “06”: 32.5 mm (1.28 inches)\u003c\/li\u003e\n\u003cli\u003eSwitch with output code “07”: 43.5 mm (1.71 inches)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAccessories \u0026amp; Additional Options\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"5\" cellspacing=\"0\"\u003e\n\u003ctr\u003e\n\u003cth\u003eAccessory\u003c\/th\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd Cap (for securing switch to panel)\u003c\/td\u003e\n\u003ctd\u003eA7B-M (-1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpacer\u003c\/td\u003e\n\u003ctd\u003eA7B-PI (-1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSolder Terminal Connector\u003c\/td\u003e\n\u003ctd\u003eA7B-C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePC Terminal Connector\u003c\/td\u003e\n\u003ctd\u003eA7B-CP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eNote: When ordering, specify model numbers and quantities for switch units and accessories. Switch units and accessories are shipped unassembled. Models with suffix -S include two stopper pins as standard.\u003c\/p\u003e\n\u003ch3\u003eAdditional Information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSwitch case, end caps, and spacers are made of polyacetal resin; window plates are polycarbonate resin.\u003c\/li\u003e\n\u003cli\u003eFor detailed dimensions and mounting options, please consult the datasheet linked above.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor more details, please search the internet for the part number \u003cstrong\u003eA7BS-203-1\u003c\/strong\u003e.\u003c\/p\u003e\u003cbr\u003e","published_at":"2025-08-15T15:32:05+05:30","created_at":"2025-08-15T15:32:07+05:30","vendor":"Waldom Electonics","type":"Switches","tags":["IMPORT_CSV","IMPORT_PT2","OMRON-ELE","Pushwheel","Switch","Thumbwheel","WLDM"],"price":91332,"price_min":91332,"price_max":91332,"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":50623144034621,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"A7BS-203-1","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"A7BS-203-1","public_title":null,"options":["Default Title"],"price":91332,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"A7BS-203-1","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/A7BS-203-1_42335811_cc12c2e3.jpg?v=1755252127"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/A7BS-203-1_42335811_cc12c2e3.jpg?v=1755252127","options":["Title"],"media":[{"alt":null,"id":45852293071165,"position":1,"preview_image":{"aspect_ratio":1.0,"height":200,"width":200,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/A7BS-203-1_42335811_cc12c2e3.jpg?v=1755252127"},"aspect_ratio":1.0,"height":200,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/A7BS-203-1_42335811_cc12c2e3.jpg?v=1755252127","width":200}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eOMRON ELECTRONIC COMPONENTS A7BS-203-1 Thumbwheel Switch\u003c\/h3\u003e\n\u003cp\u003eDiscover the reliable and easy-to-mount thumbwheel switch from OMRON ELECTRONIC COMPONENTS, designed for precise digital control applications. This switch features dustproof construction, ensuring high performance even under adverse environmental conditions, and includes pushbuttons for positive forward and reverse rotation of each digital wheel.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e A7BS-203-1\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 Japan (JP)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit of Measure:\u003c\/strong\u003e EA (Each)\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 BLK (Black)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDatasheet:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-om\/om-a7bs-203-1.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\u003eDustproof construction for reliable performance at low voltage and small current\u003c\/li\u003e\n\u003cli\u003ePositive (+) and negative (–) pushbuttons for easy digital wheel rotation\u003c\/li\u003e\n\u003cli\u003eFront mounting solder terminals for secure installation\u003c\/li\u003e\n\u003cli\u003eAvailable with stopper pins for enhanced stability (model dependent)\u003c\/li\u003e\n\u003cli\u003eMade of durable polyacetal resin with polycarbonate window plate\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\u003eCharacteristics\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSwitching Capacity\u003c\/td\u003e\n\u003ctd\u003e1 mA to 0.1 A 50 VAC\/28 VDC (resistive load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCarry Current\u003c\/td\u003e\n\u003ctd\u003eMaximum 1 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Resistance\u003c\/td\u003e\n\u003ctd\u003eMax. 200 mΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInsulation Resistance\u003c\/td\u003e\n\u003ctd\u003eMin. 10 MΩ at 500 VDC between non-connected terminals; 1000 MΩ between each terminal and non-current-carrying part\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDielectric Strength\u003c\/td\u003e\n\u003ctd\u003e600 VAC for 1 minute between non-connected terminals; 1000 VAC for 1 minute between each terminal and non-current-carrying part\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Force\u003c\/td\u003e\n\u003ctd\u003eMax. 550 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVibration Resistance\u003c\/td\u003e\n\u003ctd\u003e10 to 55 Hz, 1.5 mm double amplitude\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShock Resistance\u003c\/td\u003e\n\u003ctd\u003eApprox. 50 G (500 m\/s²)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-10°C to 65°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-20°C to 80°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHumidity\u003c\/td\u003e\n\u003ctd\u003e45% to 85% RH max.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eService Life\u003c\/td\u003e\n\u003ctd\u003eMechanical: 100,000 operations; Electrical: 50,000 operations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eApprox. 4.1 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eDimensions\u003c\/h3\u003e\n\u003cp\u003eRefer to the datasheet for detailed dimensions in millimeters and inches. Notable dimensions include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSwitch with output code “06”: 32.5 mm (1.28 inches)\u003c\/li\u003e\n\u003cli\u003eSwitch with output code “07”: 43.5 mm (1.71 inches)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAccessories \u0026amp; Additional Options\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"5\" cellspacing=\"0\"\u003e\n\u003ctr\u003e\n\u003cth\u003eAccessory\u003c\/th\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnd Cap (for securing switch to panel)\u003c\/td\u003e\n\u003ctd\u003eA7B-M (-1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpacer\u003c\/td\u003e\n\u003ctd\u003eA7B-PI (-1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSolder Terminal Connector\u003c\/td\u003e\n\u003ctd\u003eA7B-C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePC Terminal Connector\u003c\/td\u003e\n\u003ctd\u003eA7B-CP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eNote: When ordering, specify model numbers and quantities for switch units and accessories. Switch units and accessories are shipped unassembled. Models with suffix -S include two stopper pins as standard.\u003c\/p\u003e\n\u003ch3\u003eAdditional Information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSwitch case, end caps, and spacers are made of polyacetal resin; window plates are polycarbonate resin.\u003c\/li\u003e\n\u003cli\u003eFor detailed dimensions and mounting options, please consult the datasheet linked above.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor more details, please search the internet for the part number \u003cstrong\u003eA7BS-203-1\u003c\/strong\u003e.\u003c\/p\u003e\u003cbr\u003e"}
