Ensure robust electrostatic discharge (ESD) and transient voltage suppression with the EATON ELECTRONICS TVS Diode ESD Suppressor, designed for high-performance electronic protection. This bidirectional TVS diode is suitable for a variety of applications including cellular handsets, microprocessor-based equipment, portable electronics, notebooks, desktops, servers, and portable instrumentation.
Part Number: STS321033U202 Manufacturer: EATON ELECTRONICS Country of Origin: CN Unit of Measure: EA ECCN: EAR99 Package Type: T&R Datasheet:Download Datasheet
Key Features
Protects one bi-directional I/O line
Low clamping voltage for effective transient suppression
Low leakage current ensures minimal power loss
Meets moisture sensitivity level (MSL) 3
Termination finish: Tin
Molding compound flammability rating: UL 94V-0
IEC61000-4-2 (ESD): Up to ±30 kV (air and contact)
IEC61000-4-5 (Lightning): Up to 25 A (8/20 μs waveform)
Electrical Specifications
Parameter
Test Condition
Min
Typical
Max
Symbol (Units)
Reverse working voltage
-
-
-
-
RWM (V)
Reverse breakdown voltage
I T = 1 mA
4
-
-
V BR (V)
Reverse leakage current
V RWM = 3.3 V
-
1
5
I R (μA)
Peak pulse current
t p = 8/20 μs
-
-
25
I PP (A)
Clamping voltage
I PP = 1 A, t p = 8/20 μs
6.5
-
15
V C (V)
Junction capacitance
V RWM = 0 V, f = 1 MHz
-
200
250
C J (pF)
Mechanical & Packaging Details
Dimension (mm)
Minimum
Maximum
A
1.60
1.80
B
0.25
0.35
C
2.50
2.75
D
0.00
1.00
E
1.20
1.40
F
0.08
0.15
L
0.475 REF
-
L1
0.25
0.40
H
0.00
0.10
P
3.00
-
P1
0.80
-
Packaging & Availability
Supplied in tape and reel packaging, with 3,000 parts per 7” diameter reel, compliant with EIA-481 standards.
For more detailed specifications, please refer to the full datasheet.
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{"id":10027958042941,"title":"STS321033U202","handle":"sts321033u202","description":"\u003ch3\u003eProduct Description: EATON ELECTRONICS TVS ESD Suppressor - Part Number: STS321033U202\u003c\/h3\u003e\n\u003cp\u003eEnsure robust electrostatic discharge (ESD) and transient voltage suppression with the \u003cstrong\u003eEATON ELECTRONICS TVS Diode ESD Suppressor\u003c\/strong\u003e, designed for high-performance electronic protection. This bidirectional TVS diode is suitable for a variety of applications including cellular handsets, microprocessor-based equipment, portable electronics, notebooks, desktops, servers, and portable instrumentation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e STS321033U202\u003cbr\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e EATON ELECTRONICS\u003cbr\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e CN\u003cbr\u003e\n\u003cstrong\u003eUnit of Measure:\u003c\/strong\u003e EA\u003cbr\u003e\n\u003cstrong\u003eECCN:\u003c\/strong\u003e EAR99\u003cbr\u003e\n\u003cstrong\u003ePackage Type:\u003c\/strong\u003e T\u0026amp;R\u003cbr\u003e\n\u003cstrong\u003eDatasheet:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.eaton.com\/content\/dam\/eaton\/products\/electronic-components\/resources\/data-sheet\/eaton-sts321xxxuxxx-tvs-diode-esd-suppressor-data-sheet.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eProtects one bi-directional I\/O line\u003c\/li\u003e\n\u003cli\u003eLow clamping voltage for effective transient suppression\u003c\/li\u003e\n\u003cli\u003eLow leakage current ensures minimal power loss\u003c\/li\u003e\n\u003cli\u003eMeets moisture sensitivity level (MSL) 3\u003c\/li\u003e\n\u003cli\u003eTermination finish: Tin\u003c\/li\u003e\n\u003cli\u003eMolding compound flammability rating: UL 94V-0\u003c\/li\u003e\n\u003cli\u003eIEC61000-4-2 (ESD): Up to ±30 kV (air and contact)\u003c\/li\u003e\n\u003cli\u003eIEC61000-4-5 (Lightning): Up to 25 A (8\/20 μs waveform)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eElectrical Specifications\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"5\" cellspacing=\"0\"\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eTest Condition\u003c\/th\u003e\n\u003cth\u003eMin\u003c\/th\u003e\n\u003cth\u003eTypical\u003c\/th\u003e\n\u003cth\u003eMax\u003c\/th\u003e\n\u003cth\u003eSymbol (Units)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReverse working voltage\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003ctd\u003eRWM (V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReverse breakdown voltage\u003c\/td\u003e\n\u003ctd\u003eI T = 1 mA\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003ctd\u003eV BR (V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReverse leakage current\u003c\/td\u003e\n\u003ctd\u003eV RWM = 3.3 V\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003eI R (μA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePeak pulse current\u003c\/td\u003e\n\u003ctd\u003et p = 8\/20 μs\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003eI PP (A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamping voltage\u003c\/td\u003e\n\u003ctd\u003eI PP = 1 A, t p = 8\/20 μs\u003c\/td\u003e\n\u003ctd\u003e6.5\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003eV C (V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJunction capacitance\u003c\/td\u003e\n\u003ctd\u003eV RWM = 0 V, f = 1 MHz\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003ctd\u003e200\u003c\/td\u003e\n\u003ctd\u003e250\u003c\/td\u003e\n\u003ctd\u003eC J (pF)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eMechanical \u0026amp; Packaging Details\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"5\" cellspacing=\"0\"\u003e\n\u003ctr\u003e\n\u003cth\u003eDimension (mm)\u003c\/th\u003e\n\u003cth\u003eMinimum\u003c\/th\u003e\n\u003cth\u003eMaximum\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eA\u003c\/td\u003e\n\u003ctd\u003e1.60\u003c\/td\u003e\n\u003ctd\u003e1.80\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB\u003c\/td\u003e\n\u003ctd\u003e0.25\u003c\/td\u003e\n\u003ctd\u003e0.35\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eC\u003c\/td\u003e\n\u003ctd\u003e2.50\u003c\/td\u003e\n\u003ctd\u003e2.75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD\u003c\/td\u003e\n\u003ctd\u003e0.00\u003c\/td\u003e\n\u003ctd\u003e1.00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eE\u003c\/td\u003e\n\u003ctd\u003e1.20\u003c\/td\u003e\n\u003ctd\u003e1.40\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eF\u003c\/td\u003e\n\u003ctd\u003e0.08\u003c\/td\u003e\n\u003ctd\u003e0.15\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL\u003c\/td\u003e\n\u003ctd\u003e0.475 REF\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL1\u003c\/td\u003e\n\u003ctd\u003e0.25\u003c\/td\u003e\n\u003ctd\u003e0.40\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eH\u003c\/td\u003e\n\u003ctd\u003e0.00\u003c\/td\u003e\n\u003ctd\u003e0.10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eP\u003c\/td\u003e\n\u003ctd\u003e3.00\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eP1\u003c\/td\u003e\n\u003ctd\u003e0.80\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003ePackaging \u0026amp; Availability\u003c\/h3\u003e\n\u003cp\u003eSupplied in tape and reel packaging, with 3,000 parts per 7” diameter reel, compliant with EIA-481 standards.\u003c\/p\u003e\n\u003cp\u003eFor more detailed specifications, please refer to the \u003ca href=\"https:\/\/www.eaton.com\/content\/dam\/eaton\/products\/electronic-components\/resources\/data-sheet\/eaton-sts321xxxuxxx-tvs-diode-esd-suppressor-data-sheet.pdf\" target=\"_blank\"\u003efull datasheet\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNote: This product complies with RoHS standards.\u003c\/em\u003e\u003c\/p\u003e\u003cbr\u003e","published_at":"2025-08-16T05:12:26+05:30","created_at":"2025-08-16T05:12:26+05:30","vendor":"Waldom Electonics","type":"","tags":["3 V","EATON-ELE","IMPORT_CSV","IMPORT_PT2","TVS","WLDM"],"price":679,"price_min":679,"price_max":679,"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":50626350711101,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"STS321033U202","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"STS321033U202","public_title":null,"options":["Default Title"],"price":679,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"STS321033U202","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/54934033.jpg?v=1755301348"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/54934033.jpg?v=1755301348","options":["Title"],"media":[{"alt":null,"id":45862436962621,"position":1,"preview_image":{"aspect_ratio":1.0,"height":640,"width":640,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/54934033.jpg?v=1755301348"},"aspect_ratio":1.0,"height":640,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/54934033.jpg?v=1755301348","width":640}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eProduct Description: EATON ELECTRONICS TVS ESD Suppressor - Part Number: STS321033U202\u003c\/h3\u003e\n\u003cp\u003eEnsure robust electrostatic discharge (ESD) and transient voltage suppression with the \u003cstrong\u003eEATON ELECTRONICS TVS Diode ESD Suppressor\u003c\/strong\u003e, designed for high-performance electronic protection. This bidirectional TVS diode is suitable for a variety of applications including cellular handsets, microprocessor-based equipment, portable electronics, notebooks, desktops, servers, and portable instrumentation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e STS321033U202\u003cbr\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e EATON ELECTRONICS\u003cbr\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e CN\u003cbr\u003e\n\u003cstrong\u003eUnit of Measure:\u003c\/strong\u003e EA\u003cbr\u003e\n\u003cstrong\u003eECCN:\u003c\/strong\u003e EAR99\u003cbr\u003e\n\u003cstrong\u003ePackage Type:\u003c\/strong\u003e T\u0026amp;R\u003cbr\u003e\n\u003cstrong\u003eDatasheet:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.eaton.com\/content\/dam\/eaton\/products\/electronic-components\/resources\/data-sheet\/eaton-sts321xxxuxxx-tvs-diode-esd-suppressor-data-sheet.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eProtects one bi-directional I\/O line\u003c\/li\u003e\n\u003cli\u003eLow clamping voltage for effective transient suppression\u003c\/li\u003e\n\u003cli\u003eLow leakage current ensures minimal power loss\u003c\/li\u003e\n\u003cli\u003eMeets moisture sensitivity level (MSL) 3\u003c\/li\u003e\n\u003cli\u003eTermination finish: Tin\u003c\/li\u003e\n\u003cli\u003eMolding compound flammability rating: UL 94V-0\u003c\/li\u003e\n\u003cli\u003eIEC61000-4-2 (ESD): Up to ±30 kV (air and contact)\u003c\/li\u003e\n\u003cli\u003eIEC61000-4-5 (Lightning): Up to 25 A (8\/20 μs waveform)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eElectrical Specifications\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"5\" cellspacing=\"0\"\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eTest Condition\u003c\/th\u003e\n\u003cth\u003eMin\u003c\/th\u003e\n\u003cth\u003eTypical\u003c\/th\u003e\n\u003cth\u003eMax\u003c\/th\u003e\n\u003cth\u003eSymbol (Units)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReverse working voltage\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003ctd\u003eRWM (V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReverse breakdown voltage\u003c\/td\u003e\n\u003ctd\u003eI T = 1 mA\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003ctd\u003eV BR (V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReverse leakage current\u003c\/td\u003e\n\u003ctd\u003eV RWM = 3.3 V\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003eI R (μA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePeak pulse current\u003c\/td\u003e\n\u003ctd\u003et p = 8\/20 μs\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003eI PP (A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamping voltage\u003c\/td\u003e\n\u003ctd\u003eI PP = 1 A, t p = 8\/20 μs\u003c\/td\u003e\n\u003ctd\u003e6.5\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003eV C (V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJunction capacitance\u003c\/td\u003e\n\u003ctd\u003eV RWM = 0 V, f = 1 MHz\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003ctd\u003e200\u003c\/td\u003e\n\u003ctd\u003e250\u003c\/td\u003e\n\u003ctd\u003eC J (pF)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eMechanical \u0026amp; Packaging Details\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"5\" cellspacing=\"0\"\u003e\n\u003ctr\u003e\n\u003cth\u003eDimension (mm)\u003c\/th\u003e\n\u003cth\u003eMinimum\u003c\/th\u003e\n\u003cth\u003eMaximum\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eA\u003c\/td\u003e\n\u003ctd\u003e1.60\u003c\/td\u003e\n\u003ctd\u003e1.80\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB\u003c\/td\u003e\n\u003ctd\u003e0.25\u003c\/td\u003e\n\u003ctd\u003e0.35\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eC\u003c\/td\u003e\n\u003ctd\u003e2.50\u003c\/td\u003e\n\u003ctd\u003e2.75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD\u003c\/td\u003e\n\u003ctd\u003e0.00\u003c\/td\u003e\n\u003ctd\u003e1.00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eE\u003c\/td\u003e\n\u003ctd\u003e1.20\u003c\/td\u003e\n\u003ctd\u003e1.40\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eF\u003c\/td\u003e\n\u003ctd\u003e0.08\u003c\/td\u003e\n\u003ctd\u003e0.15\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL\u003c\/td\u003e\n\u003ctd\u003e0.475 REF\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL1\u003c\/td\u003e\n\u003ctd\u003e0.25\u003c\/td\u003e\n\u003ctd\u003e0.40\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eH\u003c\/td\u003e\n\u003ctd\u003e0.00\u003c\/td\u003e\n\u003ctd\u003e0.10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eP\u003c\/td\u003e\n\u003ctd\u003e3.00\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eP1\u003c\/td\u003e\n\u003ctd\u003e0.80\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003ePackaging \u0026amp; Availability\u003c\/h3\u003e\n\u003cp\u003eSupplied in tape and reel packaging, with 3,000 parts per 7” diameter reel, compliant with EIA-481 standards.\u003c\/p\u003e\n\u003cp\u003eFor more detailed specifications, please refer to the \u003ca href=\"https:\/\/www.eaton.com\/content\/dam\/eaton\/products\/electronic-components\/resources\/data-sheet\/eaton-sts321xxxuxxx-tvs-diode-esd-suppressor-data-sheet.pdf\" target=\"_blank\"\u003efull datasheet\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNote: This product complies with RoHS standards.\u003c\/em\u003e\u003c\/p\u003e\u003cbr\u003e"}
