GRAYHILL GH Part Number: 78RB12ST DIP Switches/SIP Switches
Optimize your electronic applications with the high-quality GRAYHILL 78RB12ST DIP and SIP switches, designed for reliable performance in various industrial and commercial environments. Manufactured in China (COO: CN), these switches are RoHS compliant and come in a convenient tube packaging for easy handling and installation.
Product Features
Type: DIP Switches / SIP Switches
Part Number: 78RB12ST
Manufacturer: GRAYHILL
Country of Origin: China (CN)
Unit of Measure: Each (EA)
ECCN: EAR99
Package Type: TUBE
RoHS Compliant: Yes
Technical Specifications
Switch Type: Double Pole / Single Throw (DPST) with raised slides
Number of Positions: 12
Contact Resistance: ≤ 30 mΩ initially; ≤ 100 mΩ after life
Insulation Resistance: Minimum 5,000 MΩ initially; 1,000 MΩ after life
Dielectric Strength: 750 V AC initially; 500 V AC after life
Mechanical Life: 2,000 operations per switch position
Make-and-break Current Rating: Up to 150 mA at 30 VDC
Operating Temperature Range: -40°C to +85°C
Storage Temperature Range: -55°C to +85°C
Switch Capacitance: 2 pF at 1 MHz
Dimensions & Circuitry
Dimension (in inches)
Dimension (mm)
Width: .100 (2.54 ± 0.05)
Width: 2.54 mm
Length: 0.380" (9.65 mm)
Length: 9.65 mm
For switches with additional circuitry options (5, 6, 7, 8, or 10PST), please contact Grayhill for specific configurations.
Ordering Information
Circuitry
No. of Positions
Length (Inches)
Length (mm)
No./Tube
Raised Slides
Recessed Slides
SPST T
12
1.280"
32.5 mm
8
78B12T
78RB12T
For detailed ordering options for other circuitry types, refer to the datasheet.
Compliance & Certifications
RoHS Compliant
Meets MIL-STD-202 environmental and mechanical standards
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Manufactured in China (COO: CN), these switches are RoHS compliant and come in a convenient tube packaging for easy handling and installation.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eType: DIP Switches \/ SIP Switches\u003c\/li\u003e\n \u003cli\u003ePart Number: 78RB12ST\u003c\/li\u003e\n \u003cli\u003eManufacturer: GRAYHILL\u003c\/li\u003e\n \u003cli\u003eCountry of Origin: China (CN)\u003c\/li\u003e\n \u003cli\u003eUnit of Measure: Each (EA)\u003c\/li\u003e\n \u003cli\u003eECCN: EAR99\u003c\/li\u003e\n \u003cli\u003ePackage Type: TUBE\u003c\/li\u003e\n \u003cli\u003eRoHS Compliant: Yes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eSwitch Type:\u003c\/strong\u003e Double Pole \/ Single Throw (DPST) with raised slides\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eNumber of Positions:\u003c\/strong\u003e 12\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eContact Resistance:\u003c\/strong\u003e ≤ 30 mΩ initially; ≤ 100 mΩ after life\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eInsulation Resistance:\u003c\/strong\u003e Minimum 5,000 MΩ initially; 1,000 MΩ after life\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eDielectric Strength:\u003c\/strong\u003e 750 V AC initially; 500 V AC after life\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMechanical Life:\u003c\/strong\u003e 2,000 operations per switch position\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMake-and-break Current Rating:\u003c\/strong\u003e Up to 150 mA at 30 VDC\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eOperating Temperature Range:\u003c\/strong\u003e -40°C to +85°C\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eStorage Temperature Range:\u003c\/strong\u003e -55°C to +85°C\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eSwitch Capacitance:\u003c\/strong\u003e 2 pF at 1 MHz\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDimensions \u0026amp; Circuitry\u003c\/h3\u003e\n\u003ctable\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eDimension (in inches)\u003c\/th\u003e\n \u003cth\u003eDimension (mm)\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003eWidth: .100 (2.54 ± 0.05)\u003c\/td\u003e\n \u003ctd\u003eWidth: 2.54 mm\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eLength: 0.380\" (9.65 mm)\u003c\/td\u003e\n \u003ctd\u003eLength: 9.65 mm\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eFor switches with additional circuitry options (5, 6, 7, 8, or 10PST), please contact Grayhill for specific configurations.\u003c\/p\u003e\n\n\u003ch3\u003eOrdering Information\u003c\/h3\u003e\n\u003ctable\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eCircuitry\u003c\/th\u003e\n \u003cth\u003eNo. of Positions\u003c\/th\u003e\n \u003cth\u003eLength (Inches)\u003c\/th\u003e\n \u003cth\u003eLength (mm)\u003c\/th\u003e\n \u003cth\u003eNo.\/Tube\u003c\/th\u003e\n \u003cth\u003eRaised Slides\u003c\/th\u003e\n \u003cth\u003eRecessed Slides\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003eSPST T\u003c\/td\u003e\n \u003ctd\u003e12\u003c\/td\u003e\n \u003ctd\u003e1.280\"\u003c\/td\u003e\n \u003ctd\u003e32.5 mm\u003c\/td\u003e\n \u003ctd\u003e8\u003c\/td\u003e\n \u003ctd\u003e78B12T\u003c\/td\u003e\n \u003ctd\u003e78RB12T\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eFor detailed ordering options for other circuitry types, refer to the datasheet.\u003c\/p\u003e\n\n\u003ch3\u003eCompliance \u0026amp; Certifications\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eRoHS Compliant\u003c\/li\u003e\n \u003cli\u003eMeets MIL-STD-202 environmental and mechanical standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAdditional Information\u003c\/h3\u003e\n\u003cp\u003eFor more detailed specifications, download the datasheet here: \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-gh\/gh-78rb12st.pdf\" target=\"_blank\"\u003eGRAYHILL 78RB12ST Datasheet\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eNote: The datasheet content was not processed; please search the internet for the part number for more details.\u003c\/p\u003e\u003cbr\u003e","published_at":"2025-08-13T20:58:19+05:30","created_at":"2025-08-13T20:58:19+05:30","vendor":"Waldom Electonics","type":"Switches","tags":["DIP","GRAYH","IMPORT_CSV","Sip","Switch","WLDM"],"price":56129,"price_min":56129,"price_max":56129,"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":50616092066109,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"78RB12ST","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"78RB12ST","public_title":null,"options":["Default Title"],"price":56129,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"78RB12ST","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/78RB12ST_11461116_8a1b732e.jpg?v=1755098902"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/78RB12ST_11461116_8a1b732e.jpg?v=1755098902","options":["Title"],"media":[{"alt":null,"id":45821641785661,"position":1,"preview_image":{"aspect_ratio":1.0,"height":200,"width":200,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/78RB12ST_11461116_8a1b732e.jpg?v=1755098902"},"aspect_ratio":1.0,"height":200,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/78RB12ST_11461116_8a1b732e.jpg?v=1755098902","width":200}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eGRAYHILL GH Part Number: 78RB12ST DIP Switches\/SIP Switches\u003c\/h3\u003e\n\u003cp\u003eOptimize your electronic applications with the high-quality \u003cstrong\u003eGRAYHILL\u003c\/strong\u003e 78RB12ST DIP and SIP switches, designed for reliable performance in various industrial and commercial environments. Manufactured in China (COO: CN), these switches are RoHS compliant and come in a convenient tube packaging for easy handling and installation.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eType: DIP Switches \/ SIP Switches\u003c\/li\u003e\n \u003cli\u003ePart Number: 78RB12ST\u003c\/li\u003e\n \u003cli\u003eManufacturer: GRAYHILL\u003c\/li\u003e\n \u003cli\u003eCountry of Origin: China (CN)\u003c\/li\u003e\n \u003cli\u003eUnit of Measure: Each (EA)\u003c\/li\u003e\n \u003cli\u003eECCN: EAR99\u003c\/li\u003e\n \u003cli\u003ePackage Type: TUBE\u003c\/li\u003e\n \u003cli\u003eRoHS Compliant: Yes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eSwitch Type:\u003c\/strong\u003e Double Pole \/ Single Throw (DPST) with raised slides\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eNumber of Positions:\u003c\/strong\u003e 12\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eContact Resistance:\u003c\/strong\u003e ≤ 30 mΩ initially; ≤ 100 mΩ after life\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eInsulation Resistance:\u003c\/strong\u003e Minimum 5,000 MΩ initially; 1,000 MΩ after life\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eDielectric Strength:\u003c\/strong\u003e 750 V AC initially; 500 V AC after life\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMechanical Life:\u003c\/strong\u003e 2,000 operations per switch position\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMake-and-break Current Rating:\u003c\/strong\u003e Up to 150 mA at 30 VDC\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eOperating Temperature Range:\u003c\/strong\u003e -40°C to +85°C\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eStorage Temperature Range:\u003c\/strong\u003e -55°C to +85°C\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eSwitch Capacitance:\u003c\/strong\u003e 2 pF at 1 MHz\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDimensions \u0026amp; Circuitry\u003c\/h3\u003e\n\u003ctable\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eDimension (in inches)\u003c\/th\u003e\n \u003cth\u003eDimension (mm)\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003eWidth: .100 (2.54 ± 0.05)\u003c\/td\u003e\n \u003ctd\u003eWidth: 2.54 mm\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eLength: 0.380\" (9.65 mm)\u003c\/td\u003e\n \u003ctd\u003eLength: 9.65 mm\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eFor switches with additional circuitry options (5, 6, 7, 8, or 10PST), please contact Grayhill for specific configurations.\u003c\/p\u003e\n\n\u003ch3\u003eOrdering Information\u003c\/h3\u003e\n\u003ctable\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eCircuitry\u003c\/th\u003e\n \u003cth\u003eNo. of Positions\u003c\/th\u003e\n \u003cth\u003eLength (Inches)\u003c\/th\u003e\n \u003cth\u003eLength (mm)\u003c\/th\u003e\n \u003cth\u003eNo.\/Tube\u003c\/th\u003e\n \u003cth\u003eRaised Slides\u003c\/th\u003e\n \u003cth\u003eRecessed Slides\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003eSPST T\u003c\/td\u003e\n \u003ctd\u003e12\u003c\/td\u003e\n \u003ctd\u003e1.280\"\u003c\/td\u003e\n \u003ctd\u003e32.5 mm\u003c\/td\u003e\n \u003ctd\u003e8\u003c\/td\u003e\n \u003ctd\u003e78B12T\u003c\/td\u003e\n \u003ctd\u003e78RB12T\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eFor detailed ordering options for other circuitry types, refer to the datasheet.\u003c\/p\u003e\n\n\u003ch3\u003eCompliance \u0026amp; Certifications\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eRoHS Compliant\u003c\/li\u003e\n \u003cli\u003eMeets MIL-STD-202 environmental and mechanical standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAdditional Information\u003c\/h3\u003e\n\u003cp\u003eFor more detailed specifications, download the datasheet here: \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-gh\/gh-78rb12st.pdf\" target=\"_blank\"\u003eGRAYHILL 78RB12ST Datasheet\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eNote: The datasheet content was not processed; please search the internet for the part number for more details.\u003c\/p\u003e\u003cbr\u003e"}
