The EPCOS B72220S3271K101 is a high-performance metal oxide varistor (MOV) designed for circuit protection applications. Manufactured in China, this leaded varistor features a robust construction suitable for handling high surge currents and energy ratings, making it ideal for surge suppression in electronic circuits.
Construction: Round leaded varistor element with epoxy resin coating (UL 94 V-0 flame-retardant) and tinned copper wire terminals.
High Surge Current Rating: Up to 12 kA (8/20 µs waveform).
Energy Ratings: Capable of handling energy up to 320 Joules.
Maximum Ratings (at 85°C):
Ordering Code
Type (untaped)
V RMS (V)
V DC (V)
i max (A, 8/20 s)
W max (J, 2 ms)
P max (W)
B72220S3271K101
S20K275E3
275
260
12000
385
1.0
Electrical Characteristics (at 25°C):
Ordering Code
V v (1 mA) V
∆ V v (1 mA) %
v c, max (i c) V
i c (A)
C typ (1 kHz) pF
B72220S3271K101
430
±10
710
100
630
Dimensional Data:
Nominal Diameter: 20 mm
Weight: 4.0 – 7.0 g (interpolated for voltage class)
Dimensions and lead configuration details are available in the datasheet.
Certifications & Approvals
UL, CSA, CECC, VDE, IEC
Additional Information
This varistor is suitable for applications requiring high surge current handling and energy absorption. It is delivered in bulk or taped versions upon request, with packaging details outlined in the datasheet.
For comprehensive technical data, safety cautions, and handling instructions, please refer to the full datasheet.
Note: The datasheet was not processed; please search the internet for the part number for more details.
Use left/right arrows to navigate the slideshow or swipe left/right if using a mobile device
Choosing a selection results in a full page refresh.
Press the space key then arrow keys to make a selection.
Shopping Cart
{"id":10019242967357,"title":"B72220S3271K101","handle":"b72220s3271k101","description":"\u003ch3\u003eProduct Description for EPCOS B72220S3271K101\u003c\/h3\u003e\n\u003cp\u003eThe EPCOS B72220S3271K101 is a high-performance metal oxide varistor (MOV) designed for circuit protection applications. Manufactured in China, this leaded varistor features a robust construction suitable for handling high surge currents and energy ratings, making it ideal for surge suppression in electronic circuits.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e B72220S3271K101\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e EPCOS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e CN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Circuit Protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Circuit Protection | Varistors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Type:\u003c\/strong\u003e BLK\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUOM:\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\u003eDatasheet:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-eps\/eps-b72220s3271k101.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Features \u0026amp; Technical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e Round leaded varistor element with epoxy resin coating (UL 94 V-0 flame-retardant) and tinned copper wire terminals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Surge Current Rating:\u003c\/strong\u003e Up to 12 kA (8\/20 µs waveform).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnergy Ratings:\u003c\/strong\u003e Capable of handling energy up to 320 Joules.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMaximum Ratings (at 85°C):\u003c\/strong\u003e\u003c\/li\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eOrdering Code\u003c\/th\u003e\n\u003cth\u003eType (untaped)\u003c\/th\u003e\n\u003cth\u003eV RMS (V)\u003c\/th\u003e\n\u003cth\u003eV DC (V)\u003c\/th\u003e\n\u003cth\u003ei max (A, 8\/20 s)\u003c\/th\u003e\n\u003cth\u003eW max (J, 2 ms)\u003c\/th\u003e\n\u003cth\u003eP max (W)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB72220S3271K101\u003c\/td\u003e\n\u003ctd\u003eS20K275E3\u003c\/td\u003e\n\u003ctd\u003e275\u003c\/td\u003e\n\u003ctd\u003e260\u003c\/td\u003e\n\u003ctd\u003e12000\u003c\/td\u003e\n\u003ctd\u003e385\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cli\u003e\u003cstrong\u003eElectrical Characteristics (at 25°C):\u003c\/strong\u003e\u003c\/li\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eOrdering Code\u003c\/th\u003e\n\u003cth\u003eV v (1 mA) V\u003c\/th\u003e\n\u003cth\u003e∆ V v (1 mA) %\u003c\/th\u003e\n\u003cth\u003ev c, max (i c) V\u003c\/th\u003e\n\u003cth\u003ei c (A)\u003c\/th\u003e\n\u003cth\u003eC typ (1 kHz) pF\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB72220S3271K101\u003c\/td\u003e\n\u003ctd\u003e430\u003c\/td\u003e\n\u003ctd\u003e±10\u003c\/td\u003e\n\u003ctd\u003e710\u003c\/td\u003e\n\u003ctd\u003e100\u003c\/td\u003e\n\u003ctd\u003e630\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cli\u003e\u003cstrong\u003eDimensional Data:\u003c\/strong\u003e\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003eNominal Diameter: 20 mm\u003c\/li\u003e\n\u003cli\u003eWeight: 4.0 – 7.0 g (interpolated for voltage class)\u003c\/li\u003e\n\u003cli\u003eDimensions and lead configuration details are available in the datasheet.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCertifications \u0026amp; Approvals\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUL, CSA, CECC, VDE, IEC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAdditional Information\u003c\/h3\u003e\n\u003cp\u003eThis varistor is suitable for applications requiring high surge current handling and energy absorption. It is delivered in bulk or taped versions upon request, with packaging details outlined in the datasheet.\u003c\/p\u003e\n\u003cp\u003eFor comprehensive technical data, safety cautions, and handling instructions, please refer to the \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-eps\/eps-b72220s3271k101.pdf\" target=\"_blank\"\u003efull datasheet\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNote: The datasheet was not processed; please search the internet for the part number for more details.\u003c\/em\u003e\u003c\/p\u003e","published_at":"2025-08-11T13:34:40+05:30","created_at":"2025-08-11T13:34:41+05:30","vendor":"Waldom Electonics","type":"Circuit Protection","tags":["Circuit","EPCOS","IMPORT_CSV","Varistors","WLDM"],"price":10672,"price_min":10672,"price_max":10672,"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":50606069743933,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"B72220S3271K101","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"B72220S3271K101","public_title":null,"options":["Default Title"],"price":10672,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"B72220S3271K101","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/B72220S3271K101_53135760_c2c76c5c.jpg?v=1754899484"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/B72220S3271K101_53135760_c2c76c5c.jpg?v=1754899484","options":["Title"],"media":[{"alt":null,"id":45780802306365,"position":1,"preview_image":{"aspect_ratio":1.0,"height":200,"width":200,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/B72220S3271K101_53135760_c2c76c5c.jpg?v=1754899484"},"aspect_ratio":1.0,"height":200,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/B72220S3271K101_53135760_c2c76c5c.jpg?v=1754899484","width":200}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eProduct Description for EPCOS B72220S3271K101\u003c\/h3\u003e\n\u003cp\u003eThe EPCOS B72220S3271K101 is a high-performance metal oxide varistor (MOV) designed for circuit protection applications. Manufactured in China, this leaded varistor features a robust construction suitable for handling high surge currents and energy ratings, making it ideal for surge suppression in electronic circuits.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e B72220S3271K101\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e EPCOS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e CN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Circuit Protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Circuit Protection | Varistors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Type:\u003c\/strong\u003e BLK\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUOM:\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\u003eDatasheet:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-eps\/eps-b72220s3271k101.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Features \u0026amp; Technical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e Round leaded varistor element with epoxy resin coating (UL 94 V-0 flame-retardant) and tinned copper wire terminals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Surge Current Rating:\u003c\/strong\u003e Up to 12 kA (8\/20 µs waveform).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnergy Ratings:\u003c\/strong\u003e Capable of handling energy up to 320 Joules.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMaximum Ratings (at 85°C):\u003c\/strong\u003e\u003c\/li\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eOrdering Code\u003c\/th\u003e\n\u003cth\u003eType (untaped)\u003c\/th\u003e\n\u003cth\u003eV RMS (V)\u003c\/th\u003e\n\u003cth\u003eV DC (V)\u003c\/th\u003e\n\u003cth\u003ei max (A, 8\/20 s)\u003c\/th\u003e\n\u003cth\u003eW max (J, 2 ms)\u003c\/th\u003e\n\u003cth\u003eP max (W)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB72220S3271K101\u003c\/td\u003e\n\u003ctd\u003eS20K275E3\u003c\/td\u003e\n\u003ctd\u003e275\u003c\/td\u003e\n\u003ctd\u003e260\u003c\/td\u003e\n\u003ctd\u003e12000\u003c\/td\u003e\n\u003ctd\u003e385\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cli\u003e\u003cstrong\u003eElectrical Characteristics (at 25°C):\u003c\/strong\u003e\u003c\/li\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eOrdering Code\u003c\/th\u003e\n\u003cth\u003eV v (1 mA) V\u003c\/th\u003e\n\u003cth\u003e∆ V v (1 mA) %\u003c\/th\u003e\n\u003cth\u003ev c, max (i c) V\u003c\/th\u003e\n\u003cth\u003ei c (A)\u003c\/th\u003e\n\u003cth\u003eC typ (1 kHz) pF\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB72220S3271K101\u003c\/td\u003e\n\u003ctd\u003e430\u003c\/td\u003e\n\u003ctd\u003e±10\u003c\/td\u003e\n\u003ctd\u003e710\u003c\/td\u003e\n\u003ctd\u003e100\u003c\/td\u003e\n\u003ctd\u003e630\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cli\u003e\u003cstrong\u003eDimensional Data:\u003c\/strong\u003e\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003eNominal Diameter: 20 mm\u003c\/li\u003e\n\u003cli\u003eWeight: 4.0 – 7.0 g (interpolated for voltage class)\u003c\/li\u003e\n\u003cli\u003eDimensions and lead configuration details are available in the datasheet.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCertifications \u0026amp; Approvals\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUL, CSA, CECC, VDE, IEC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAdditional Information\u003c\/h3\u003e\n\u003cp\u003eThis varistor is suitable for applications requiring high surge current handling and energy absorption. It is delivered in bulk or taped versions upon request, with packaging details outlined in the datasheet.\u003c\/p\u003e\n\u003cp\u003eFor comprehensive technical data, safety cautions, and handling instructions, please refer to the \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-eps\/eps-b72220s3271k101.pdf\" target=\"_blank\"\u003efull datasheet\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNote: The datasheet was not processed; please search the internet for the part number for more details.\u003c\/em\u003e\u003c\/p\u003e"}
