Manufactured by GRAYHILL, the 78K02T is a high-quality DIP switch designed for precise electronic control applications. This switch features a DPDT configuration with 4 circuits and 2 positions, making it suitable for various switching needs in electronic devices.
DPDT configuration with common poles or 4 isolated circuits
Spring and ball contact mechanisms for reliable switching
Available with raised and recessed rocker, and toggle actuated styles
Top tape seal option for machine soldering or heavy cleaning processes
Mechanical life of 2,000 operations per switch position
Operating temperature range from -40°C to +85°C
Insulation resistance of at least 5,000 MΩ initially
Dielectric strength of 750 V (initial) and 500 V (after life)
Technical Specifications
Parameter
Value
Mechanical Life
2,000 operations per switch position
Make-and-break Current Rating
At 10 mA, 50 mVdc: 2,000 operations
Contact Resistance
Initially ≤ 30 mΩ; after life ≤ 100 mΩ
Insulation Resistance
Initially 5,000 MΩ; after life 1,000 MΩ
Dielectric Strength
Initially 750 V; after life 500 V
Current Carry Rating
Maximum 4 A at 20°C rise
Operating Temperature Range
-40°C to +85°C
Storage Temperature Range
-55°C to +85°C
Materials & Finishes
Shorting Member (Ball): Brass, gold-plated over nickel barrier
Base Contacts: Copper alloy, gold-plated over nickel barrier
Terminals: Copper alloy, matte tin plated over nickel barrier
Non-Conductive Parts: Thermoplastic (UL94V-O)
Tape Seal: Polyester film
Environmental & Soldering Ratings
Vibration Resistance, Mechanical Shock, Thermal Shock, Terminal Strength, and Thermal Aging as per MIL standards
Meets MIL-STD-202 and MIL-S-83504 specifications
Soldering profile: Peak temperature of 260°C
Resistance to Soldering Heat: Passes standard tests for 76RSB and 90 series switches
Additional Information
For more details, please refer to the full datasheet. The product is RoHS compliant and suitable for applications requiring reliable switching performance in harsh environments.
Note: Datasheet was not processed; please search the internet for the part number 78K02T for more details.
{"id":10023243546941,"title":"78K02T","handle":"78k02t","description":"\u003ch3\u003eGrayhill DIP Switch - Part Number 78K02T\u003c\/h3\u003e\n\u003cp\u003eManufactured by \u003cstrong\u003eGRAYHILL\u003c\/strong\u003e, the \u003cem\u003e78K02T\u003c\/em\u003e is a high-quality DIP switch designed for precise electronic control applications. This switch features a DPDT configuration with 4 circuits and 2 positions, making it suitable for various switching needs in electronic devices.\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Switches | SIP Switches\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003ePackage Type:\u003c\/strong\u003e TUBE\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eUOM:\u003c\/strong\u003e EA\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCOO:\u003c\/strong\u003e CN\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eECCN:\u003c\/strong\u003e EAR99\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eRoHS Compliant:\u003c\/strong\u003e Yes\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eDatasheet:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-gh\/gh-78k02t.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eDPDT configuration with common poles or 4 isolated circuits\u003c\/li\u003e\n \u003cli\u003eSpring and ball contact mechanisms for reliable switching\u003c\/li\u003e\n \u003cli\u003eAvailable with raised and recessed rocker, and toggle actuated styles\u003c\/li\u003e\n \u003cli\u003eTop tape seal option for machine soldering or heavy cleaning processes\u003c\/li\u003e\n \u003cli\u003eMechanical life of 2,000 operations per switch position\u003c\/li\u003e\n \u003cli\u003eOperating temperature range from -40°C to +85°C\u003c\/li\u003e\n \u003cli\u003eInsulation resistance of at least 5,000 MΩ initially\u003c\/li\u003e\n \u003cli\u003eDielectric strength of 750 V (initial) and 500 V (after life)\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\u003eParameter\u003c\/th\u003e\n \u003cth\u003eValue\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMechanical Life\u003c\/td\u003e\n \u003ctd\u003e2,000 operations per switch position\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMake-and-break Current Rating\u003c\/td\u003e\n \u003ctd\u003eAt 10 mA, 50 mVdc: 2,000 operations\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eContact Resistance\u003c\/td\u003e\n \u003ctd\u003eInitially ≤ 30 mΩ; after life ≤ 100 mΩ\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eInsulation Resistance\u003c\/td\u003e\n \u003ctd\u003eInitially 5,000 MΩ; after life 1,000 MΩ\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eDielectric Strength\u003c\/td\u003e\n \u003ctd\u003eInitially 750 V; after life 500 V\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eCurrent Carry Rating\u003c\/td\u003e\n \u003ctd\u003eMaximum 4 A at 20°C rise\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eOperating Temperature Range\u003c\/td\u003e\n \u003ctd\u003e-40°C to +85°C\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eStorage Temperature Range\u003c\/td\u003e\n \u003ctd\u003e-55°C to +85°C\u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eMaterials \u0026amp; Finishes\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eShorting Member (Ball): Brass, gold-plated over nickel barrier\u003c\/li\u003e\n \u003cli\u003eBase Contacts: Copper alloy, gold-plated over nickel barrier\u003c\/li\u003e\n \u003cli\u003eTerminals: Copper alloy, matte tin plated over nickel barrier\u003c\/li\u003e\n \u003cli\u003eNon-Conductive Parts: Thermoplastic (UL94V-O)\u003c\/li\u003e\n \u003cli\u003eTape Seal: Polyester film\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eEnvironmental \u0026amp; Soldering Ratings\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eVibration Resistance, Mechanical Shock, Thermal Shock, Terminal Strength, and Thermal Aging as per MIL standards\u003c\/li\u003e\n \u003cli\u003eMeets MIL-STD-202 and MIL-S-83504 specifications\u003c\/li\u003e\n \u003cli\u003eSoldering profile: Peak temperature of 260°C\u003c\/li\u003e\n \u003cli\u003eResistance to Soldering Heat: Passes standard tests for 76RSB and 90 series switches\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAdditional Information\u003c\/h3\u003e\n\u003cp\u003eFor more details, please refer to the \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-gh\/gh-78k02t.pdf\" target=\"_blank\"\u003efull datasheet\u003c\/a\u003e. The product is RoHS compliant and suitable for applications requiring reliable switching performance in harsh environments.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNote: Datasheet was not processed; please search the internet for the part number 78K02T for more details.\u003c\/em\u003e\u003c\/p\u003e\u003cbr\u003e","published_at":"2025-08-13T20:57:46+05:30","created_at":"2025-08-13T20:57:46+05:30","vendor":"Waldom Electonics","type":"Switches","tags":["DIP","GRAYH","IMPORT_CSV","Sip","Switch","WLDM"],"price":100756,"price_min":100756,"price_max":100756,"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":50616091443517,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"78K02T","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"78K02T","public_title":null,"options":["Default Title"],"price":100756,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"78K02T","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/78K02T_DIP_ThruHole_78FGHK-Raised_20slides_99afc142.jpg?v=1755098869"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/78K02T_DIP_ThruHole_78FGHK-Raised_20slides_99afc142.jpg?v=1755098869","options":["Title"],"media":[{"alt":null,"id":45821634904381,"position":1,"preview_image":{"aspect_ratio":1.0,"height":200,"width":200,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/78K02T_DIP_ThruHole_78FGHK-Raised_20slides_99afc142.jpg?v=1755098869"},"aspect_ratio":1.0,"height":200,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/78K02T_DIP_ThruHole_78FGHK-Raised_20slides_99afc142.jpg?v=1755098869","width":200}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eGrayhill DIP Switch - Part Number 78K02T\u003c\/h3\u003e\n\u003cp\u003eManufactured by \u003cstrong\u003eGRAYHILL\u003c\/strong\u003e, the \u003cem\u003e78K02T\u003c\/em\u003e is a high-quality DIP switch designed for precise electronic control applications. This switch features a DPDT configuration with 4 circuits and 2 positions, making it suitable for various switching needs in electronic devices.\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Switches | SIP Switches\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003ePackage Type:\u003c\/strong\u003e TUBE\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eUOM:\u003c\/strong\u003e EA\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eCOO:\u003c\/strong\u003e CN\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eECCN:\u003c\/strong\u003e EAR99\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eRoHS Compliant:\u003c\/strong\u003e Yes\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eDatasheet:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-gh\/gh-78k02t.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eDPDT configuration with common poles or 4 isolated circuits\u003c\/li\u003e\n \u003cli\u003eSpring and ball contact mechanisms for reliable switching\u003c\/li\u003e\n \u003cli\u003eAvailable with raised and recessed rocker, and toggle actuated styles\u003c\/li\u003e\n \u003cli\u003eTop tape seal option for machine soldering or heavy cleaning processes\u003c\/li\u003e\n \u003cli\u003eMechanical life of 2,000 operations per switch position\u003c\/li\u003e\n \u003cli\u003eOperating temperature range from -40°C to +85°C\u003c\/li\u003e\n \u003cli\u003eInsulation resistance of at least 5,000 MΩ initially\u003c\/li\u003e\n \u003cli\u003eDielectric strength of 750 V (initial) and 500 V (after life)\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\u003eParameter\u003c\/th\u003e\n \u003cth\u003eValue\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMechanical Life\u003c\/td\u003e\n \u003ctd\u003e2,000 operations per switch position\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eMake-and-break Current Rating\u003c\/td\u003e\n \u003ctd\u003eAt 10 mA, 50 mVdc: 2,000 operations\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eContact Resistance\u003c\/td\u003e\n \u003ctd\u003eInitially ≤ 30 mΩ; after life ≤ 100 mΩ\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eInsulation Resistance\u003c\/td\u003e\n \u003ctd\u003eInitially 5,000 MΩ; after life 1,000 MΩ\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eDielectric Strength\u003c\/td\u003e\n \u003ctd\u003eInitially 750 V; after life 500 V\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eCurrent Carry Rating\u003c\/td\u003e\n \u003ctd\u003eMaximum 4 A at 20°C rise\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eOperating Temperature Range\u003c\/td\u003e\n \u003ctd\u003e-40°C to +85°C\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eStorage Temperature Range\u003c\/td\u003e\n \u003ctd\u003e-55°C to +85°C\u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eMaterials \u0026amp; Finishes\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eShorting Member (Ball): Brass, gold-plated over nickel barrier\u003c\/li\u003e\n \u003cli\u003eBase Contacts: Copper alloy, gold-plated over nickel barrier\u003c\/li\u003e\n \u003cli\u003eTerminals: Copper alloy, matte tin plated over nickel barrier\u003c\/li\u003e\n \u003cli\u003eNon-Conductive Parts: Thermoplastic (UL94V-O)\u003c\/li\u003e\n \u003cli\u003eTape Seal: Polyester film\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eEnvironmental \u0026amp; Soldering Ratings\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eVibration Resistance, Mechanical Shock, Thermal Shock, Terminal Strength, and Thermal Aging as per MIL standards\u003c\/li\u003e\n \u003cli\u003eMeets MIL-STD-202 and MIL-S-83504 specifications\u003c\/li\u003e\n \u003cli\u003eSoldering profile: Peak temperature of 260°C\u003c\/li\u003e\n \u003cli\u003eResistance to Soldering Heat: Passes standard tests for 76RSB and 90 series switches\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAdditional Information\u003c\/h3\u003e\n\u003cp\u003eFor more details, please refer to the \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-gh\/gh-78k02t.pdf\" target=\"_blank\"\u003efull datasheet\u003c\/a\u003e. The product is RoHS compliant and suitable for applications requiring reliable switching performance in harsh environments.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNote: Datasheet was not processed; please search the internet for the part number 78K02T for more details.\u003c\/em\u003e\u003c\/p\u003e\u003cbr\u003e"}
