Enhance your electronic system's resilience with the BOURNS TBU-DB055-100-WH-Q Surge Protection Circuit, a high-speed, dual bidirectional device designed to safeguard sensitive electronics from transient voltage and current faults. Manufactured in China, this RoHS-compliant circuit protection component is ideal for telecommunications, industrial communications, and automotive battery management systems.
Superior circuit protection against surges and faults
Overcurrent protection to prevent damage during transient events
Blocks surges up to a rated voltage limit of 550V peak impulse withstand
High-speed response with a typical tblock of 1 microsecond
Small SMT package for easy integration
RoHS and AEC-Q101 compliant for automotive applications
Electrical and Environmental Specifications
Parameter
Value
Unit
Peak impulse voltage withstand (Vimp)
550
V
Peak DC voltage withstand (Vdc)
450
V
Operating temperature range
-55 to +125
°C
Storage temperature range
-65 to +150
°C
Maximum ambient temperature
+125
°C
Electrical Characteristics (@25°C)
Min.
Typ.
Max.
Unit
Trigger current (Itrigger)
100
150
200
mA
Series resistance (Rdevice)
10.5
13.5
16.5
Ω
Voltage below which device resets (Vreset)
4.5
7.5
9.5
V
Junction to ambient thermal resistance (Rth(j-a))
125
°C/W
Performance & Application
The TBU-DB055-100-WH-Q device utilizes MOSFET semiconductor technology to monitor and respond to transient faults rapidly. It provides an effective barrier to protect sensitive electronics from high-voltage surges, fault currents, and transient events. Its small surface-mount design ensures easy integration into various electronic systems, making it suitable for telecommunications, industrial, and automotive applications.
Additional Information
For more technical details, application notes, and support, please visit the following resources:
Specifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein are subject to legal disclaimers available at www.bourns.com/docs/legal/disclaimer.pdf.
Note: Datasheet was not processed; please search the internet for the part number for more details.
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{"id":10026004185405,"title":"TBU-DB055-100-WH-Q","handle":"tbu-db055-100-wh-q","description":"\u003ch3\u003eBOURNS TBU-DB055-100-WH-Q Surge Protection Circuit\u003c\/h3\u003e\n\u003cp\u003eEnhance your electronic system's resilience with the BOURNS TBU-DB055-100-WH-Q Surge Protection Circuit, a high-speed, dual bidirectional device designed to safeguard sensitive electronics from transient voltage and current faults. Manufactured in China, this RoHS-compliant circuit protection component is ideal for telecommunications, industrial communications, and automotive battery management systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Details:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e TBU-DB055-100-WH-Q\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e BOURNS\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 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 REEL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDatasheet:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.bourns.com\/docs\/Product-Datasheets\/TBU-DB-Q.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eDownload Datasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSuperior circuit protection against surges and faults\u003c\/li\u003e\n\u003cli\u003eOvercurrent protection to prevent damage during transient events\u003c\/li\u003e\n\u003cli\u003eBlocks surges up to a rated voltage limit of 550V peak impulse withstand\u003c\/li\u003e\n\u003cli\u003eHigh-speed response with a typical \u003cem\u003etblock\u003c\/em\u003e of 1 microsecond\u003c\/li\u003e\n\u003cli\u003eSmall SMT package for easy integration\u003c\/li\u003e\n\u003cli\u003eRoHS and AEC-Q101 compliant for automotive applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eElectrical and Environmental Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003cth\u003eUnit\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePeak impulse voltage withstand (Vimp)\u003c\/td\u003e\n\u003ctd\u003e550\u003c\/td\u003e\n\u003ctd\u003eV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePeak DC voltage withstand (Vdc)\u003c\/td\u003e\n\u003ctd\u003e450\u003c\/td\u003e\n\u003ctd\u003eV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating temperature range\u003c\/td\u003e\n\u003ctd\u003e-55 to +125\u003c\/td\u003e\n\u003ctd\u003e°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage temperature range\u003c\/td\u003e\n\u003ctd\u003e-65 to +150\u003c\/td\u003e\n\u003ctd\u003e°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum ambient temperature\u003c\/td\u003e\n\u003ctd\u003e+125\u003c\/td\u003e\n\u003ctd\u003e°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eElectrical Characteristics (@25°C)\u003c\/th\u003e\n\u003cth\u003eMin.\u003c\/th\u003e\n\u003cth\u003eTyp.\u003c\/th\u003e\n\u003cth\u003eMax.\u003c\/th\u003e\n\u003cth\u003eUnit\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTrigger current (Itrigger)\u003c\/td\u003e\n\u003ctd\u003e100\u003c\/td\u003e\n\u003ctd\u003e150\u003c\/td\u003e\n\u003ctd\u003e200\u003c\/td\u003e\n\u003ctd\u003emA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries resistance (Rdevice)\u003c\/td\u003e\n\u003ctd\u003e10.5\u003c\/td\u003e\n\u003ctd\u003e13.5\u003c\/td\u003e\n\u003ctd\u003e16.5\u003c\/td\u003e\n\u003ctd\u003eΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage below which device resets (Vreset)\u003c\/td\u003e\n\u003ctd\u003e4.5\u003c\/td\u003e\n\u003ctd\u003e7.5\u003c\/td\u003e\n\u003ctd\u003e9.5\u003c\/td\u003e\n\u003ctd\u003eV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJunction to ambient thermal resistance (Rth(j-a))\u003c\/td\u003e\n\u003ctd\u003e125\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e°C\/W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePerformance \u0026amp; Application\u003c\/h3\u003e\n\u003cp\u003eThe TBU-DB055-100-WH-Q device utilizes MOSFET semiconductor technology to monitor and respond to transient faults rapidly. It provides an effective barrier to protect sensitive electronics from high-voltage surges, fault currents, and transient events. Its small surface-mount design ensures easy integration into various electronic systems, making it suitable for telecommunications, industrial, and automotive applications.\u003c\/p\u003e\n\n\u003ch3\u003eAdditional Information\u003c\/h3\u003e\n\u003cp\u003eFor more technical details, application notes, and support, please visit the following resources:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.bourns.com\/parametric-search?Cat=Circuit%20Protection%20-%20TBU%c2%ae\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eProduct Parametric Search\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.bourns.com\/resources\/technical-library\/library-documents\/tbu-technical-library\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eTechnical Library\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.bourns.com\/inventory-search-results?PARTS=tbu-db\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInventory Search\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.bourns.com\/support\/request-samples\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eRequest Samples\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.bourns.com\/support\/contact\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eContact Support\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDisclaimers\u003c\/h3\u003e\n\u003cp\u003eSpecifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein are subject to legal disclaimers available at \u003ca href=\"https:\/\/www.bourns.com\/docs\/legal\/disclaimer.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003ewww.bourns.com\/docs\/legal\/disclaimer.pdf\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003eNote: Datasheet was not processed; please search the internet for the part number for more details.\u003c\/p\u003e\u003cbr\u003e","published_at":"2025-08-14T23:43:36+05:30","created_at":"2025-08-14T23:43:36+05:30","vendor":"Waldom Electonics","type":"Circuit Protection","tags":["BOURN","Circuit","IMPORT_CSV","Surge","WLDM"],"price":14136,"price_min":14136,"price_max":14136,"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":50621031940413,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"TBU-DB055-100-WH-Q","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"TBU-DB055-100-WH-Q","public_title":null,"options":["Default Title"],"price":14136,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"TBU-DB055-100-WH-Q","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/TBU-DB055-100-WH-Q_50190000_23a22e5e.jpg?v=1755195219"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/TBU-DB055-100-WH-Q_50190000_23a22e5e.jpg?v=1755195219","options":["Title"],"media":[{"alt":null,"id":45843209847101,"position":1,"preview_image":{"aspect_ratio":1.0,"height":200,"width":200,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/TBU-DB055-100-WH-Q_50190000_23a22e5e.jpg?v=1755195219"},"aspect_ratio":1.0,"height":200,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/TBU-DB055-100-WH-Q_50190000_23a22e5e.jpg?v=1755195219","width":200}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eBOURNS TBU-DB055-100-WH-Q Surge Protection Circuit\u003c\/h3\u003e\n\u003cp\u003eEnhance your electronic system's resilience with the BOURNS TBU-DB055-100-WH-Q Surge Protection Circuit, a high-speed, dual bidirectional device designed to safeguard sensitive electronics from transient voltage and current faults. Manufactured in China, this RoHS-compliant circuit protection component is ideal for telecommunications, industrial communications, and automotive battery management systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Details:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e TBU-DB055-100-WH-Q\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e BOURNS\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 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 REEL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDatasheet:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.bourns.com\/docs\/Product-Datasheets\/TBU-DB-Q.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eDownload Datasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSuperior circuit protection against surges and faults\u003c\/li\u003e\n\u003cli\u003eOvercurrent protection to prevent damage during transient events\u003c\/li\u003e\n\u003cli\u003eBlocks surges up to a rated voltage limit of 550V peak impulse withstand\u003c\/li\u003e\n\u003cli\u003eHigh-speed response with a typical \u003cem\u003etblock\u003c\/em\u003e of 1 microsecond\u003c\/li\u003e\n\u003cli\u003eSmall SMT package for easy integration\u003c\/li\u003e\n\u003cli\u003eRoHS and AEC-Q101 compliant for automotive applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eElectrical and Environmental Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003cth\u003eUnit\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePeak impulse voltage withstand (Vimp)\u003c\/td\u003e\n\u003ctd\u003e550\u003c\/td\u003e\n\u003ctd\u003eV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePeak DC voltage withstand (Vdc)\u003c\/td\u003e\n\u003ctd\u003e450\u003c\/td\u003e\n\u003ctd\u003eV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating temperature range\u003c\/td\u003e\n\u003ctd\u003e-55 to +125\u003c\/td\u003e\n\u003ctd\u003e°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage temperature range\u003c\/td\u003e\n\u003ctd\u003e-65 to +150\u003c\/td\u003e\n\u003ctd\u003e°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum ambient temperature\u003c\/td\u003e\n\u003ctd\u003e+125\u003c\/td\u003e\n\u003ctd\u003e°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eElectrical Characteristics (@25°C)\u003c\/th\u003e\n\u003cth\u003eMin.\u003c\/th\u003e\n\u003cth\u003eTyp.\u003c\/th\u003e\n\u003cth\u003eMax.\u003c\/th\u003e\n\u003cth\u003eUnit\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTrigger current (Itrigger)\u003c\/td\u003e\n\u003ctd\u003e100\u003c\/td\u003e\n\u003ctd\u003e150\u003c\/td\u003e\n\u003ctd\u003e200\u003c\/td\u003e\n\u003ctd\u003emA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries resistance (Rdevice)\u003c\/td\u003e\n\u003ctd\u003e10.5\u003c\/td\u003e\n\u003ctd\u003e13.5\u003c\/td\u003e\n\u003ctd\u003e16.5\u003c\/td\u003e\n\u003ctd\u003eΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage below which device resets (Vreset)\u003c\/td\u003e\n\u003ctd\u003e4.5\u003c\/td\u003e\n\u003ctd\u003e7.5\u003c\/td\u003e\n\u003ctd\u003e9.5\u003c\/td\u003e\n\u003ctd\u003eV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJunction to ambient thermal resistance (Rth(j-a))\u003c\/td\u003e\n\u003ctd\u003e125\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e°C\/W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePerformance \u0026amp; Application\u003c\/h3\u003e\n\u003cp\u003eThe TBU-DB055-100-WH-Q device utilizes MOSFET semiconductor technology to monitor and respond to transient faults rapidly. It provides an effective barrier to protect sensitive electronics from high-voltage surges, fault currents, and transient events. Its small surface-mount design ensures easy integration into various electronic systems, making it suitable for telecommunications, industrial, and automotive applications.\u003c\/p\u003e\n\n\u003ch3\u003eAdditional Information\u003c\/h3\u003e\n\u003cp\u003eFor more technical details, application notes, and support, please visit the following resources:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.bourns.com\/parametric-search?Cat=Circuit%20Protection%20-%20TBU%c2%ae\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eProduct Parametric Search\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.bourns.com\/resources\/technical-library\/library-documents\/tbu-technical-library\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eTechnical Library\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.bourns.com\/inventory-search-results?PARTS=tbu-db\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInventory Search\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.bourns.com\/support\/request-samples\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eRequest Samples\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.bourns.com\/support\/contact\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eContact Support\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDisclaimers\u003c\/h3\u003e\n\u003cp\u003eSpecifications are subject to change without notice. Users should verify actual device performance in their specific applications. The products described herein are subject to legal disclaimers available at \u003ca href=\"https:\/\/www.bourns.com\/docs\/legal\/disclaimer.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003ewww.bourns.com\/docs\/legal\/disclaimer.pdf\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003eNote: Datasheet was not processed; please search the internet for the part number for more details.\u003c\/p\u003e\u003cbr\u003e"}
