The EPCOS B72205S0381K101 is a high-performance through-hole varistor designed for circuit protection applications. Manufactured in China by EPCOS, a TDK Group company, this leaded metal oxide varistor (MOV) offers reliable surge suppression and voltage clamping capabilities.
Key Features
Wide operating voltage range from 11 V RMS to 1100 V RMS
High surge current ratings up to 8 kA
No derating required up to 105°C ambient temperature
Constructed with a round varistor element coated with flame-retardant epoxy resin (UL 94 V-0)
Terminals are tinned wire for secure electrical connection
RoHS compliant and suitable for various circuit protection needs
{"id":10024317452605,"title":"B72205S0381K101","handle":"b72205s0381k101","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe EPCOS B72205S0381K101 is a high-performance through-hole varistor designed for circuit protection applications. Manufactured in China by EPCOS, a TDK Group company, this leaded metal oxide varistor (MOV) offers reliable surge suppression and voltage clamping capabilities.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWide operating voltage range from 11 V RMS to 1100 V RMS\u003c\/li\u003e\n\u003cli\u003eHigh surge current ratings up to 8 kA\u003c\/li\u003e\n\u003cli\u003eNo derating required up to 105°C ambient temperature\u003c\/li\u003e\n\u003cli\u003eConstructed with a round varistor element coated with flame-retardant epoxy resin (UL 94 V-0)\u003c\/li\u003e\n\u003cli\u003eTerminals are tinned wire for secure electrical connection\u003c\/li\u003e\n\u003cli\u003eRoHS compliant and suitable for various circuit protection needs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eMaximum Ratings (TA = 105°C)\u003c\/th\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003cth\u003eV RMS (V)\u003c\/th\u003e\n\u003cth\u003eV DC (V)\u003c\/th\u003e\n\u003cth\u003ei max (8\/20 µs) (A)\u003c\/th\u003e\n\u003cth\u003eI n (8\/20 µs) (A)\u003c\/th\u003e\n\u003cth\u003eW max (2 ms) (J)\u003c\/th\u003e\n\u003cth\u003eP max (W)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e11 V RMS\u003c\/td\u003e\n\u003ctd\u003eS05K11\u003c\/td\u003e\n\u003ctd\u003e11\u003c\/td\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003ctd\u003e100\u003c\/td\u003e\n\u003ctd\u003e50\u003c\/td\u003e\n\u003ctd\u003e0.3\u003c\/td\u003e\n\u003ctd\u003e0.01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e14 V RMS\u003c\/td\u003e\n\u003ctd\u003eS05K14\u003c\/td\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003ctd\u003e18\u003c\/td\u003e\n\u003ctd\u003e100\u003c\/td\u003e\n\u003ctd\u003e50\u003c\/td\u003e\n\u003ctd\u003e0.4\u003c\/td\u003e\n\u003ctd\u003e0.01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e17 V RMS\u003c\/td\u003e\n\u003ctd\u003eS05K17\u003c\/td\u003e\n\u003ctd\u003e17\u003c\/td\u003e\n\u003ctd\u003e22\u003c\/td\u003e\n\u003ctd\u003e100\u003c\/td\u003e\n\u003ctd\u003e50\u003c\/td\u003e\n\u003ctd\u003e0.5\u003c\/td\u003e\n\u003ctd\u003e0.01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20 V RMS\u003c\/td\u003e\n\u003ctd\u003eS05K20\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003ctd\u003e26\u003c\/td\u003e\n\u003ctd\u003e100\u003c\/td\u003e\n\u003ctd\u003e50\u003c\/td\u003e\n\u003ctd\u003e0.6\u003c\/td\u003e\n\u003ctd\u003e0.01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e25 V RMS\u003c\/td\u003e\n\u003ctd\u003eS05K25\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e31\u003c\/td\u003e\n\u003ctd\u003e100\u003c\/td\u003e\n\u003ctd\u003e50\u003c\/td\u003e\n\u003ctd\u003e0.7\u003c\/td\u003e\n\u003ctd\u003e0.01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e30 V RMS\u003c\/td\u003e\n\u003ctd\u003eS05K30\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003ctd\u003e38\u003c\/td\u003e\n\u003ctd\u003e100\u003c\/td\u003e\n\u003ctd\u003e50\u003c\/td\u003e\n\u003ctd\u003e0.9\u003c\/td\u003e\n\u003ctd\u003e0.01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eElectrical Characteristics (at 25°C)\u003c\/h3\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\u003eB72205S0110K101\u003c\/td\u003e\n\u003ctd\u003e18\u003c\/td\u003e\n\u003ctd\u003e±10\u003c\/td\u003e\n\u003ctd\u003e36\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003ctd\u003e1750\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB72205S0140K101\u003c\/td\u003e\n\u003ctd\u003e22\u003c\/td\u003e\n\u003ctd\u003e±10\u003c\/td\u003e\n\u003ctd\u003e43\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003ctd\u003e1450\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB72205S0170K101\u003c\/td\u003e\n\u003ctd\u003e27\u003c\/td\u003e\n\u003ctd\u003e±10\u003c\/td\u003e\n\u003ctd\u003e53\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003ctd\u003e1200\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB72205S0200K101\u003c\/td\u003e\n\u003ctd\u003e33\u003c\/td\u003e\n\u003ctd\u003e±10\u003c\/td\u003e\n\u003ctd\u003e65\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003ctd\u003e980\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB72205S0250K101\u003c\/td\u003e\n\u003ctd\u003e39\u003c\/td\u003e\n\u003ctd\u003e±10\u003c\/td\u003e\n\u003ctd\u003e77\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003ctd\u003e850\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB72205S0300K101\u003c\/td\u003e\n\u003ctd\u003e47\u003c\/td\u003e\n\u003ctd\u003e±10\u003c\/td\u003e\n\u003ctd\u003e93\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003ctd\u003e720\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eAdditional Details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePart Number: B72205S0381K101\u003c\/li\u003e\n\u003cli\u003eManufacturer: EPCOS\u003c\/li\u003e\n\u003cli\u003eCountry of Origin: CN\u003c\/li\u003e\n\u003cli\u003eUnit of Measure: EA\u003c\/li\u003e\n\u003cli\u003eECCN: EAR99\u003c\/li\u003e\n\u003cli\u003ePackage Type: BLK\u003c\/li\u003e\n\u003cli\u003eDatasheet: \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-eps\/eps-b72205s0381k101.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDisclaimer\u003c\/h3\u003e\n\u003cp\u003eDatasheet was not processed please search the internet for the part number for more details.\u003c\/p\u003e\u003cbr\u003e","published_at":"2025-08-14T04:28:56+05:30","created_at":"2025-08-14T04:28:56+05:30","vendor":"Waldom Electonics","type":"Circuit Protection","tags":["505V","Circuit","EPCOS","IMPORT_CSV","Varistors","WLDM"],"price":984,"price_min":984,"price_max":984,"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":50618143768893,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"B72205S0381K101","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"B72205S0381K101","public_title":null,"options":["Default Title"],"price":984,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"B72205S0381K101","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/B72205S0381K101_55747829_31170270.jpg?v=1755125939"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/B72205S0381K101_55747829_31170270.jpg?v=1755125939","options":["Title"],"media":[{"alt":null,"id":45827725328701,"position":1,"preview_image":{"aspect_ratio":1.19,"height":200,"width":238,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/B72205S0381K101_55747829_31170270.jpg?v=1755125939"},"aspect_ratio":1.19,"height":200,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/B72205S0381K101_55747829_31170270.jpg?v=1755125939","width":238}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe EPCOS B72205S0381K101 is a high-performance through-hole varistor designed for circuit protection applications. Manufactured in China by EPCOS, a TDK Group company, this leaded metal oxide varistor (MOV) offers reliable surge suppression and voltage clamping capabilities.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWide operating voltage range from 11 V RMS to 1100 V RMS\u003c\/li\u003e\n\u003cli\u003eHigh surge current ratings up to 8 kA\u003c\/li\u003e\n\u003cli\u003eNo derating required up to 105°C ambient temperature\u003c\/li\u003e\n\u003cli\u003eConstructed with a round varistor element coated with flame-retardant epoxy resin (UL 94 V-0)\u003c\/li\u003e\n\u003cli\u003eTerminals are tinned wire for secure electrical connection\u003c\/li\u003e\n\u003cli\u003eRoHS compliant and suitable for various circuit protection needs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eMaximum Ratings (TA = 105°C)\u003c\/th\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003cth\u003eV RMS (V)\u003c\/th\u003e\n\u003cth\u003eV DC (V)\u003c\/th\u003e\n\u003cth\u003ei max (8\/20 µs) (A)\u003c\/th\u003e\n\u003cth\u003eI n (8\/20 µs) (A)\u003c\/th\u003e\n\u003cth\u003eW max (2 ms) (J)\u003c\/th\u003e\n\u003cth\u003eP max (W)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e11 V RMS\u003c\/td\u003e\n\u003ctd\u003eS05K11\u003c\/td\u003e\n\u003ctd\u003e11\u003c\/td\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003ctd\u003e100\u003c\/td\u003e\n\u003ctd\u003e50\u003c\/td\u003e\n\u003ctd\u003e0.3\u003c\/td\u003e\n\u003ctd\u003e0.01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e14 V RMS\u003c\/td\u003e\n\u003ctd\u003eS05K14\u003c\/td\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003ctd\u003e18\u003c\/td\u003e\n\u003ctd\u003e100\u003c\/td\u003e\n\u003ctd\u003e50\u003c\/td\u003e\n\u003ctd\u003e0.4\u003c\/td\u003e\n\u003ctd\u003e0.01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e17 V RMS\u003c\/td\u003e\n\u003ctd\u003eS05K17\u003c\/td\u003e\n\u003ctd\u003e17\u003c\/td\u003e\n\u003ctd\u003e22\u003c\/td\u003e\n\u003ctd\u003e100\u003c\/td\u003e\n\u003ctd\u003e50\u003c\/td\u003e\n\u003ctd\u003e0.5\u003c\/td\u003e\n\u003ctd\u003e0.01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20 V RMS\u003c\/td\u003e\n\u003ctd\u003eS05K20\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003ctd\u003e26\u003c\/td\u003e\n\u003ctd\u003e100\u003c\/td\u003e\n\u003ctd\u003e50\u003c\/td\u003e\n\u003ctd\u003e0.6\u003c\/td\u003e\n\u003ctd\u003e0.01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e25 V RMS\u003c\/td\u003e\n\u003ctd\u003eS05K25\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e31\u003c\/td\u003e\n\u003ctd\u003e100\u003c\/td\u003e\n\u003ctd\u003e50\u003c\/td\u003e\n\u003ctd\u003e0.7\u003c\/td\u003e\n\u003ctd\u003e0.01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e30 V RMS\u003c\/td\u003e\n\u003ctd\u003eS05K30\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003ctd\u003e38\u003c\/td\u003e\n\u003ctd\u003e100\u003c\/td\u003e\n\u003ctd\u003e50\u003c\/td\u003e\n\u003ctd\u003e0.9\u003c\/td\u003e\n\u003ctd\u003e0.01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eElectrical Characteristics (at 25°C)\u003c\/h3\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\u003eB72205S0110K101\u003c\/td\u003e\n\u003ctd\u003e18\u003c\/td\u003e\n\u003ctd\u003e±10\u003c\/td\u003e\n\u003ctd\u003e36\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003ctd\u003e1750\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB72205S0140K101\u003c\/td\u003e\n\u003ctd\u003e22\u003c\/td\u003e\n\u003ctd\u003e±10\u003c\/td\u003e\n\u003ctd\u003e43\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003ctd\u003e1450\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB72205S0170K101\u003c\/td\u003e\n\u003ctd\u003e27\u003c\/td\u003e\n\u003ctd\u003e±10\u003c\/td\u003e\n\u003ctd\u003e53\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003ctd\u003e1200\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB72205S0200K101\u003c\/td\u003e\n\u003ctd\u003e33\u003c\/td\u003e\n\u003ctd\u003e±10\u003c\/td\u003e\n\u003ctd\u003e65\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003ctd\u003e980\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB72205S0250K101\u003c\/td\u003e\n\u003ctd\u003e39\u003c\/td\u003e\n\u003ctd\u003e±10\u003c\/td\u003e\n\u003ctd\u003e77\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003ctd\u003e850\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB72205S0300K101\u003c\/td\u003e\n\u003ctd\u003e47\u003c\/td\u003e\n\u003ctd\u003e±10\u003c\/td\u003e\n\u003ctd\u003e93\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003ctd\u003e720\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eAdditional Details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePart Number: B72205S0381K101\u003c\/li\u003e\n\u003cli\u003eManufacturer: EPCOS\u003c\/li\u003e\n\u003cli\u003eCountry of Origin: CN\u003c\/li\u003e\n\u003cli\u003eUnit of Measure: EA\u003c\/li\u003e\n\u003cli\u003eECCN: EAR99\u003c\/li\u003e\n\u003cli\u003ePackage Type: BLK\u003c\/li\u003e\n\u003cli\u003eDatasheet: \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-eps\/eps-b72205s0381k101.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDisclaimer\u003c\/h3\u003e\n\u003cp\u003eDatasheet was not processed please search the internet for the part number for more details.\u003c\/p\u003e\u003cbr\u003e"}
