EPICOS B72225S4421K101 Metal Oxide Varistor (SIOV) - Circuit Protection
The EPCOS B72225S4421K101 is a high-energy, leaded metal oxide varistor (MOV) designed for circuit protection applications. Manufactured by EPCOS, a TDK Group company, this varistor provides reliable surge current handling and wide operating voltage range, making it suitable for various electronic protection needs.
Round, leaded metal oxide varistor element with epoxy resin coating (UL 94 V-0 flame-retardant)
High surge current capability up to 20 kA
Wide operating voltage range: 130 V RMS to 750 V RMS
All types meet duty cycle requirements at 6 kV/3 kA with >10 pulses, compliant with IEC standards
UL approval to UL 1449 (file number E321126, exception 580 V)
Certifications: UL, CSA, IEC, VDE
Electrical Specifications
Maximum Ratings (TA= 105 °C)
Type (untaped)
V RMS (V)
V DC (V)
i max (8/20 µs) (A)
I n (8/20 µs, 15 pulses) (A)
W max (2 ms) (J)
P max (W)
Order Code
S25K130E4R12 ... S25K580E4R12
130 ... 750
170 ... 1060
20000
10000
185 ... 1025
1.0
Technical Characteristics (TA= 25°C)
Order Code
V v (1 mA) (V)
∆V v (1 mA) (%)
v c,max (i) c V
i c (A)
C typ (1 kHz) (pF)
B72225S4131K101 ... B72225S4681K101
205 ... 1200
±10
340 ... 2000
150
3800 ... 710
Physical Dimensions & Weight
Nominal Diameter (mm)
Weight (g)
25
5.2 ... 22.2
Dimensional Drawings
Dimensions
±
e (mm)
a (mm)
w (mm)
th (mm)
h (mm)
l (mm)
d (mm)
Various
±1
12.7
3.4 - 6.3
27.5
5.7 - 11.7
31.0 - 32.5
25.0
1.0
For detailed technical data and application guidelines, please refer to the datasheet.
Note: Please review cautions and warnings in the datasheet before use. Datasheet was not processed; please search the internet for the part number for more details.
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{"id":10019242180925,"title":"B72225S4421K101","handle":"b72225s4421k101","description":"\u003ch3\u003eEPICOS B72225S4421K101 Metal Oxide Varistor (SIOV) - Circuit Protection\u003c\/h3\u003e\n\u003cp\u003eThe EPCOS B72225S4421K101 is a high-energy, leaded metal oxide varistor (MOV) designed for circuit protection applications. Manufactured by EPCOS, a TDK Group company, this varistor provides reliable surge current handling and wide operating voltage range, making it suitable for various electronic protection needs.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e B72225S4421K101\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\u003eUnit of Measure:\u003c\/strong\u003e Each (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 Black (BLK)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoHS Compliant:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDatasheet:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-eps\/eps-b72225s4421k101.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRound, leaded metal oxide varistor element with epoxy resin coating (UL 94 V-0 flame-retardant)\u003c\/li\u003e\n\u003cli\u003eHigh surge current capability up to 20 kA\u003c\/li\u003e\n\u003cli\u003eWide operating voltage range: 130 V RMS to 750 V RMS\u003c\/li\u003e\n\u003cli\u003eAll types meet duty cycle requirements at 6 kV\/3 kA with \u0026gt;10 pulses, compliant with IEC standards\u003c\/li\u003e\n\u003cli\u003eUL approval to UL 1449 (file number E321126, exception 580 V)\u003c\/li\u003e\n\u003cli\u003eCertifications: UL, CSA, IEC, VDE\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eElectrical Specifications\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"4\" cellspacing=\"0\"\u003e\n\u003ctr\u003e\n\u003cth\u003eMaximum Ratings (TA= 105 °C)\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 (8\/20 µs) (A)\u003c\/th\u003e\n\u003cth\u003eI n (8\/20 µs, 15 pulses) (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\u003eOrder Code\u003c\/td\u003e\n\u003ctd\u003eS25K130E4R12 ... S25K580E4R12\u003c\/td\u003e\n\u003ctd\u003e130 ... 750\u003c\/td\u003e\n\u003ctd\u003e170 ... 1060\u003c\/td\u003e\n\u003ctd\u003e20000\u003c\/td\u003e\n\u003ctd\u003e10000\u003c\/td\u003e\n\u003ctd\u003e185 ... 1025\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eTechnical Characteristics (TA= 25°C)\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"4\" cellspacing=\"0\"\u003e\n\u003ctr\u003e\n\u003cth\u003eOrder 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\u003eB72225S4131K101 ... B72225S4681K101\u003c\/td\u003e\n\u003ctd\u003e205 ... 1200\u003c\/td\u003e\n\u003ctd\u003e±10\u003c\/td\u003e\n\u003ctd\u003e340 ... 2000\u003c\/td\u003e\n\u003ctd\u003e150\u003c\/td\u003e\n\u003ctd\u003e3800 ... 710\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003ePhysical Dimensions \u0026amp; Weight\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"4\" cellspacing=\"0\"\u003e\n\u003ctr\u003e\n\u003cth\u003eNominal Diameter (mm)\u003c\/th\u003e\n\u003cth\u003eWeight (g)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e5.2 ... 22.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eDimensional Drawings\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"4\" cellspacing=\"0\"\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003cth\u003e±\u003c\/th\u003e\n\u003cth\u003ee (mm)\u003c\/th\u003e\n\u003cth\u003ea (mm)\u003c\/th\u003e\n\u003cth\u003ew (mm)\u003c\/th\u003e\n\u003cth\u003eth (mm)\u003c\/th\u003e\n\u003cth\u003eh (mm)\u003c\/th\u003e\n\u003cth\u003el (mm)\u003c\/th\u003e\n\u003cth\u003ed (mm)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e±1\u003c\/td\u003e\n\u003ctd\u003e12.7\u003c\/td\u003e\n\u003ctd\u003e3.4 - 6.3\u003c\/td\u003e\n\u003ctd\u003e27.5\u003c\/td\u003e\n\u003ctd\u003e5.7 - 11.7\u003c\/td\u003e\n\u003ctd\u003e31.0 - 32.5\u003c\/td\u003e\n\u003ctd\u003e25.0\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eFor detailed technical data and application guidelines, please refer to the \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-eps\/eps-b72225s4421k101.pdf\" target=\"_blank\"\u003edatasheet\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Please review cautions and warnings in the datasheet before use. Datasheet was not processed; please search the internet for the part number for more details.\u003c\/p\u003e","published_at":"2025-08-11T13:34:09+05:30","created_at":"2025-08-11T13:34:09+05:30","vendor":"Waldom Electonics","type":"Circuit Protection","tags":["Circuit","EPCOS","IMPORT_CSV","Varistors","WLDM"],"price":37558,"price_min":37558,"price_max":37558,"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":50606067417405,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"B72225S4421K101","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"B72225S4421K101","public_title":null,"options":["Default Title"],"price":37558,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"B72225S4421K101","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/B72225S4421K101_53135727_b04cf402.jpg?v=1754899452"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/B72225S4421K101_53135727_b04cf402.jpg?v=1754899452","options":["Title"],"media":[{"alt":null,"id":45780797227325,"position":1,"preview_image":{"aspect_ratio":1.19,"height":200,"width":238,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/B72225S4421K101_53135727_b04cf402.jpg?v=1754899452"},"aspect_ratio":1.19,"height":200,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/B72225S4421K101_53135727_b04cf402.jpg?v=1754899452","width":238}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eEPICOS B72225S4421K101 Metal Oxide Varistor (SIOV) - Circuit Protection\u003c\/h3\u003e\n\u003cp\u003eThe EPCOS B72225S4421K101 is a high-energy, leaded metal oxide varistor (MOV) designed for circuit protection applications. Manufactured by EPCOS, a TDK Group company, this varistor provides reliable surge current handling and wide operating voltage range, making it suitable for various electronic protection needs.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e B72225S4421K101\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\u003eUnit of Measure:\u003c\/strong\u003e Each (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 Black (BLK)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoHS Compliant:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDatasheet:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-eps\/eps-b72225s4421k101.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRound, leaded metal oxide varistor element with epoxy resin coating (UL 94 V-0 flame-retardant)\u003c\/li\u003e\n\u003cli\u003eHigh surge current capability up to 20 kA\u003c\/li\u003e\n\u003cli\u003eWide operating voltage range: 130 V RMS to 750 V RMS\u003c\/li\u003e\n\u003cli\u003eAll types meet duty cycle requirements at 6 kV\/3 kA with \u0026gt;10 pulses, compliant with IEC standards\u003c\/li\u003e\n\u003cli\u003eUL approval to UL 1449 (file number E321126, exception 580 V)\u003c\/li\u003e\n\u003cli\u003eCertifications: UL, CSA, IEC, VDE\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eElectrical Specifications\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"4\" cellspacing=\"0\"\u003e\n\u003ctr\u003e\n\u003cth\u003eMaximum Ratings (TA= 105 °C)\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 (8\/20 µs) (A)\u003c\/th\u003e\n\u003cth\u003eI n (8\/20 µs, 15 pulses) (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\u003eOrder Code\u003c\/td\u003e\n\u003ctd\u003eS25K130E4R12 ... S25K580E4R12\u003c\/td\u003e\n\u003ctd\u003e130 ... 750\u003c\/td\u003e\n\u003ctd\u003e170 ... 1060\u003c\/td\u003e\n\u003ctd\u003e20000\u003c\/td\u003e\n\u003ctd\u003e10000\u003c\/td\u003e\n\u003ctd\u003e185 ... 1025\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eTechnical Characteristics (TA= 25°C)\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"4\" cellspacing=\"0\"\u003e\n\u003ctr\u003e\n\u003cth\u003eOrder 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\u003eB72225S4131K101 ... B72225S4681K101\u003c\/td\u003e\n\u003ctd\u003e205 ... 1200\u003c\/td\u003e\n\u003ctd\u003e±10\u003c\/td\u003e\n\u003ctd\u003e340 ... 2000\u003c\/td\u003e\n\u003ctd\u003e150\u003c\/td\u003e\n\u003ctd\u003e3800 ... 710\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003ePhysical Dimensions \u0026amp; Weight\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"4\" cellspacing=\"0\"\u003e\n\u003ctr\u003e\n\u003cth\u003eNominal Diameter (mm)\u003c\/th\u003e\n\u003cth\u003eWeight (g)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003e5.2 ... 22.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eDimensional Drawings\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"4\" cellspacing=\"0\"\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003cth\u003e±\u003c\/th\u003e\n\u003cth\u003ee (mm)\u003c\/th\u003e\n\u003cth\u003ea (mm)\u003c\/th\u003e\n\u003cth\u003ew (mm)\u003c\/th\u003e\n\u003cth\u003eth (mm)\u003c\/th\u003e\n\u003cth\u003eh (mm)\u003c\/th\u003e\n\u003cth\u003el (mm)\u003c\/th\u003e\n\u003cth\u003ed (mm)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVarious\u003c\/td\u003e\n\u003ctd\u003e±1\u003c\/td\u003e\n\u003ctd\u003e12.7\u003c\/td\u003e\n\u003ctd\u003e3.4 - 6.3\u003c\/td\u003e\n\u003ctd\u003e27.5\u003c\/td\u003e\n\u003ctd\u003e5.7 - 11.7\u003c\/td\u003e\n\u003ctd\u003e31.0 - 32.5\u003c\/td\u003e\n\u003ctd\u003e25.0\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eFor detailed technical data and application guidelines, please refer to the \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-eps\/eps-b72225s4421k101.pdf\" target=\"_blank\"\u003edatasheet\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Please review cautions and warnings in the datasheet before use. Datasheet was not processed; please search the internet for the part number for more details.\u003c\/p\u003e"}
