The LITTLEFUSE SMCJ33A is a high-performance TVS diode designed for circuit protection in electronic applications. Manufactured in China, this RoHS-compliant device offers reliable transient voltage suppression to safeguard sensitive components from lightning-induced and other transient voltage events.
Key Features
Peak pulse power capability of 1500W at 10/1000μs waveform, ensuring robust transient suppression
Fast response time typically less than 1.0ps from 0V to minimum breakdown voltage (VBR)
Glass passivated chip junction for enhanced reliability
Surface mount package (DO-214AB) with built-in strain relief for easy PCB integration
High temperature reflow soldering compatibility (260°C/30sec)
VBR stability with temperature coefficient (αT) of 0.1%
VBR and VC (clamping voltage) with tight tolerances
RoHS, halogen-free, and lead-free compliant for environmentally conscious designs
UL V-0 flammability rated plastic package
Meets MSL level 1 (J-STD-020) with maximum peak of 260°C
Electrical and Thermal Specifications
Parameter
Value
Peak pulse power
1500W at 10/1000μs
Stand-off voltage (VR)
Maximum voltage applied without operation
Breakdown voltage (VBR)
Maximum voltage at specified test current
Clamping voltage (VC)
Peak voltage at peak impulse current
Reverse leakage current (IR)
Less than 1μA when VBR min > 12V
Forward voltage drop (VF)
Less than 3.5V for single die parts, less than 5.0V for stacked-die parts
Applications
Ideal for protecting I/O interfaces, VCC buses, and other vulnerable circuits in telecom, computer, industrial, and consumer electronic devices.
Additional Information
Part Number: SMCJ33A
Manufacturer: LITTLEFUSE
Country of Origin: CN
UOM: EA
ECCN: EAR99
Package Type: REEL
Datasheet: Download Datasheet
For detailed electrical characteristics and application notes, please refer to the datasheet and resources provided.
Disclaimers
Specifications are subject to change without notice. Please consult the datasheet for the most current information.
Note: The product image displayed is a standard reference image. Actual product appearance may vary. For the most accurate and up-to-date representation, we recommend searching the part number online.
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.
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Manufactured in China, this RoHS-compliant device offers reliable transient voltage suppression to safeguard sensitive components from lightning-induced and other transient voltage events.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePeak pulse power capability of 1500W at 10\/1000μs waveform, ensuring robust transient suppression\u003c\/li\u003e\n\u003cli\u003eFast response time typically less than 1.0ps from 0V to minimum breakdown voltage (V\u003csub\u003eBR\u003c\/sub\u003e)\u003c\/li\u003e\n\u003cli\u003eGlass passivated chip junction for enhanced reliability\u003c\/li\u003e\n\u003cli\u003eSurface mount package (DO-214AB) with built-in strain relief for easy PCB integration\u003c\/li\u003e\n\u003cli\u003eHigh temperature reflow soldering compatibility (260°C\/30sec)\u003c\/li\u003e\n\u003cli\u003eV\u003csub\u003eBR\u003c\/sub\u003e stability with temperature coefficient (α\u003csub\u003eT\u003c\/sub\u003e) of 0.1%\u003c\/li\u003e\n\u003cli\u003eV\u003csub\u003eBR\u003c\/sub\u003e and V\u003csub\u003eC\u003c\/sub\u003e (clamping voltage) with tight tolerances\u003c\/li\u003e\n\u003cli\u003eRoHS, halogen-free, and lead-free compliant for environmentally conscious designs\u003c\/li\u003e\n\u003cli\u003eUL V-0 flammability rated plastic package\u003c\/li\u003e\n\u003cli\u003eMeets MSL level 1 (J-STD-020) with maximum peak of 260°C\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eElectrical and Thermal Specifications\u003c\/h3\u003e\n\u003ctable\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\u003ePeak pulse power\u003c\/td\u003e\n\u003ctd\u003e1500W at 10\/1000μs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStand-off voltage (V\u003csub\u003eR\u003c\/sub\u003e)\u003c\/td\u003e\n\u003ctd\u003eMaximum voltage applied without operation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBreakdown voltage (V\u003csub\u003eBR\u003c\/sub\u003e)\u003c\/td\u003e\n\u003ctd\u003eMaximum voltage at specified test current\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamping voltage (V\u003csub\u003eC\u003c\/sub\u003e)\u003c\/td\u003e\n\u003ctd\u003ePeak voltage at peak impulse current\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReverse leakage current (I\u003csub\u003eR\u003c\/sub\u003e)\u003c\/td\u003e\n\u003ctd\u003eLess than 1μA when V\u003csub\u003eBR\u003c\/sub\u003e min \u0026gt; 12V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eForward voltage drop (V\u003csub\u003eF\u003c\/sub\u003e)\u003c\/td\u003e\n\u003ctd\u003eLess than 3.5V for single die parts, less than 5.0V for stacked-die parts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cp\u003eIdeal for protecting I\/O interfaces, V\u003csub\u003eCC\u003c\/sub\u003e buses, and other vulnerable circuits in telecom, computer, industrial, and consumer electronic devices.\u003c\/p\u003e\n\u003ch3\u003eAdditional Information\u003c\/h3\u003e\n\u003cp\u003ePart Number: SMCJ33A\u003cbr\u003e\nManufacturer: LITTLEFUSE\u003cbr\u003e\nCountry of Origin: CN\u003cbr\u003e\nUOM: EA\u003cbr\u003e\nECCN: EAR99\u003cbr\u003e\nPackage Type: REEL\u003cbr\u003e\nDatasheet: \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-lf\/lf-smcj33a.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eFor detailed electrical characteristics and application notes, please refer to the datasheet and resources provided.\u003c\/p\u003e\n\u003ch3\u003eDisclaimers\u003c\/h3\u003e\n\u003cp\u003eSpecifications are subject to change without notice. Please consult the datasheet for the most current information.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNote: The product image displayed is a standard reference image. Actual product appearance may vary. For the most accurate and up-to-date representation, we recommend searching the part number online.\u003c\/strong\u003e\u003c\/p\u003e","published_at":"2025-08-06T12:38:13+05:30","created_at":"2025-08-06T12:38:13+05:30","vendor":"Waldom Electonics","type":"Circuit Protection","tags":["33V","BOURN","Circuit","Esd","LITTL","STD_IMG","TVS","WLDM"],"price":3188,"price_min":3188,"price_max":3188,"available":false,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":50554866696509,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"SMCJ33A","requires_shipping":true,"taxable":true,"featured_image":null,"available":false,"name":"SMCJ33A","public_title":null,"options":["Default Title"],"price":3188,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"SMCJ33A","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/fbe811dc-181f-41c1-ab5a-dc3410446d1d_6cae3334-08ec-4793-b8c4-24e3e04ea506.jpg?v=1754464093"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/fbe811dc-181f-41c1-ab5a-dc3410446d1d_6cae3334-08ec-4793-b8c4-24e3e04ea506.jpg?v=1754464093","options":["Title"],"media":[{"alt":null,"id":45696038502717,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1024,"width":1024,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/fbe811dc-181f-41c1-ab5a-dc3410446d1d_6cae3334-08ec-4793-b8c4-24e3e04ea506.jpg?v=1754464093"},"aspect_ratio":1.0,"height":1024,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/fbe811dc-181f-41c1-ab5a-dc3410446d1d_6cae3334-08ec-4793-b8c4-24e3e04ea506.jpg?v=1754464093","width":1024}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eLITTLEFUSE SMCJ33A\u003c\/strong\u003e is a high-performance TVS diode designed for circuit protection in electronic applications. Manufactured in China, this RoHS-compliant device offers reliable transient voltage suppression to safeguard sensitive components from lightning-induced and other transient voltage events.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePeak pulse power capability of 1500W at 10\/1000μs waveform, ensuring robust transient suppression\u003c\/li\u003e\n\u003cli\u003eFast response time typically less than 1.0ps from 0V to minimum breakdown voltage (V\u003csub\u003eBR\u003c\/sub\u003e)\u003c\/li\u003e\n\u003cli\u003eGlass passivated chip junction for enhanced reliability\u003c\/li\u003e\n\u003cli\u003eSurface mount package (DO-214AB) with built-in strain relief for easy PCB integration\u003c\/li\u003e\n\u003cli\u003eHigh temperature reflow soldering compatibility (260°C\/30sec)\u003c\/li\u003e\n\u003cli\u003eV\u003csub\u003eBR\u003c\/sub\u003e stability with temperature coefficient (α\u003csub\u003eT\u003c\/sub\u003e) of 0.1%\u003c\/li\u003e\n\u003cli\u003eV\u003csub\u003eBR\u003c\/sub\u003e and V\u003csub\u003eC\u003c\/sub\u003e (clamping voltage) with tight tolerances\u003c\/li\u003e\n\u003cli\u003eRoHS, halogen-free, and lead-free compliant for environmentally conscious designs\u003c\/li\u003e\n\u003cli\u003eUL V-0 flammability rated plastic package\u003c\/li\u003e\n\u003cli\u003eMeets MSL level 1 (J-STD-020) with maximum peak of 260°C\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eElectrical and Thermal Specifications\u003c\/h3\u003e\n\u003ctable\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\u003ePeak pulse power\u003c\/td\u003e\n\u003ctd\u003e1500W at 10\/1000μs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStand-off voltage (V\u003csub\u003eR\u003c\/sub\u003e)\u003c\/td\u003e\n\u003ctd\u003eMaximum voltage applied without operation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBreakdown voltage (V\u003csub\u003eBR\u003c\/sub\u003e)\u003c\/td\u003e\n\u003ctd\u003eMaximum voltage at specified test current\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamping voltage (V\u003csub\u003eC\u003c\/sub\u003e)\u003c\/td\u003e\n\u003ctd\u003ePeak voltage at peak impulse current\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReverse leakage current (I\u003csub\u003eR\u003c\/sub\u003e)\u003c\/td\u003e\n\u003ctd\u003eLess than 1μA when V\u003csub\u003eBR\u003c\/sub\u003e min \u0026gt; 12V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eForward voltage drop (V\u003csub\u003eF\u003c\/sub\u003e)\u003c\/td\u003e\n\u003ctd\u003eLess than 3.5V for single die parts, less than 5.0V for stacked-die parts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cp\u003eIdeal for protecting I\/O interfaces, V\u003csub\u003eCC\u003c\/sub\u003e buses, and other vulnerable circuits in telecom, computer, industrial, and consumer electronic devices.\u003c\/p\u003e\n\u003ch3\u003eAdditional Information\u003c\/h3\u003e\n\u003cp\u003ePart Number: SMCJ33A\u003cbr\u003e\nManufacturer: LITTLEFUSE\u003cbr\u003e\nCountry of Origin: CN\u003cbr\u003e\nUOM: EA\u003cbr\u003e\nECCN: EAR99\u003cbr\u003e\nPackage Type: REEL\u003cbr\u003e\nDatasheet: \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-lf\/lf-smcj33a.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eFor detailed electrical characteristics and application notes, please refer to the datasheet and resources provided.\u003c\/p\u003e\n\u003ch3\u003eDisclaimers\u003c\/h3\u003e\n\u003cp\u003eSpecifications are subject to change without notice. Please consult the datasheet for the most current information.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNote: The product image displayed is a standard reference image. Actual product appearance may vary. For the most accurate and up-to-date representation, we recommend searching the part number online.\u003c\/strong\u003e\u003c\/p\u003e"}
