Introducing the EPCOS B72225S4171K101, a high-performance SIOV metal oxide varistor designed for robust circuit protection applications. Manufactured in China (COO: CN) by EPCOS, a TDK Group company, this leaded varistor offers reliable surge current handling and wide operating voltage range, making it ideal for safeguarding electronic circuits against transient voltage spikes.
Round leaded varistor element with epoxy resin coating, flame-retardant to UL 94 V-0
High-energy SuperioR series E4
Wide operating voltage range from 130 V RMS to 750 V RMS
High surge current capacity up to 20 kA
All types support duty cycle at 6 kV / 3 kA with >10 pulses, compliant with IEC 62368-1, IEC 60950-1, and IEC 61051-2 standards
UL approval to UL 1449 (file number E321126 – exception 580 V)
Certifications include UL, CSA, IEC, and VDE
Electrical Specifications:
Ordering Code
V RMS (V)
V DC (V)
I max (8/20 µs) (A)
I n (8/20 µs) 15x (A)
W max (2 ms) (J)
P max (W)
B72225S4131K101
130
170
20000
10000
185
1.0
B72225S4141K101
140
180
20000
10000
195
1.0
B72225S4151K101
150
200
20000
10000
215
1.0
B72225S4171K101
175
225
20000
10000
245
1.0
B72225S4231K101
230
300
20000
10000
315
1.0
Characteristics (TA = 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
B72225S4131K101
205
±10
340
150
3800
Physical Dimensions:
Dimensions (mm)
±
e
a
w
th
h
l
d
Nominal diameter
12.7
3.4 - 6.5
27.5
5.7 - 11.7
31.0
25.0
1.0
The weight of these varistors varies with voltage class and can be interpolated accordingly. For detailed lead configurations and packaging options, refer to the datasheet.
For more detailed specifications and application information, please consult the datasheet.
Note: RoHS compliance status is unspecified. Please verify if required for your application.
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{"id":10019242017085,"title":"B72225S4171K101","handle":"b72225s4171k101","description":"\u003ch3\u003eElectronics - Circuit Protection Varistor\u003c\/h3\u003e\n\u003cp\u003eIntroducing the EPCOS B72225S4171K101, a high-performance SIOV metal oxide varistor designed for robust circuit protection applications. Manufactured in China (COO: CN) by EPCOS, a TDK Group company, this leaded varistor offers reliable surge current handling and wide operating voltage range, making it ideal for safeguarding electronic circuits against transient voltage spikes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Details:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e B72225S4171K101\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 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 BLK\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Circuit Protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Category:\u003c\/strong\u003e Circuit Protection | Varistors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDatasheet:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-eps\/eps-b72225s4171k101.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRound leaded varistor element with epoxy resin coating, flame-retardant to UL 94 V-0\u003c\/li\u003e\n\u003cli\u003eHigh-energy SuperioR series E4\u003c\/li\u003e\n\u003cli\u003eWide operating voltage range from 130 V RMS to 750 V RMS\u003c\/li\u003e\n\u003cli\u003eHigh surge current capacity up to 20 kA\u003c\/li\u003e\n\u003cli\u003eAll types support duty cycle at 6 kV \/ 3 kA with \u0026gt;10 pulses, compliant with IEC 62368-1, IEC 60950-1, and IEC 61051-2 standards\u003c\/li\u003e\n\u003cli\u003eUL approval to UL 1449 (file number E321126 – exception 580 V)\u003c\/li\u003e\n\u003cli\u003eCertifications include UL, CSA, IEC, and VDE\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eElectrical Specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eOrdering Code\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) 15x (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\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eB72225S4131K101\u003c\/td\u003e\n\u003ctd\u003e130\u003c\/td\u003e\n\u003ctd\u003e170\u003c\/td\u003e\n\u003ctd\u003e20000\u003c\/td\u003e\n\u003ctd\u003e10000\u003c\/td\u003e\n\u003ctd\u003e185\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB72225S4141K101\u003c\/td\u003e\n\u003ctd\u003e140\u003c\/td\u003e\n\u003ctd\u003e180\u003c\/td\u003e\n\u003ctd\u003e20000\u003c\/td\u003e\n\u003ctd\u003e10000\u003c\/td\u003e\n\u003ctd\u003e195\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB72225S4151K101\u003c\/td\u003e\n\u003ctd\u003e150\u003c\/td\u003e\n\u003ctd\u003e200\u003c\/td\u003e\n\u003ctd\u003e20000\u003c\/td\u003e\n\u003ctd\u003e10000\u003c\/td\u003e\n\u003ctd\u003e215\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB72225S4171K101\u003c\/td\u003e\n\u003ctd\u003e175\u003c\/td\u003e\n\u003ctd\u003e225\u003c\/td\u003e\n\u003ctd\u003e20000\u003c\/td\u003e\n\u003ctd\u003e10000\u003c\/td\u003e\n\u003ctd\u003e245\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB72225S4231K101\u003c\/td\u003e\n\u003ctd\u003e230\u003c\/td\u003e\n\u003ctd\u003e300\u003c\/td\u003e\n\u003ctd\u003e20000\u003c\/td\u003e\n\u003ctd\u003e10000\u003c\/td\u003e\n\u003ctd\u003e315\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c!-- Additional rows omitted for brevity --\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eCharacteristics (TA = 25°C):\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\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\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eB72225S4131K101\u003c\/td\u003e\n\u003ctd\u003e205\u003c\/td\u003e\n\u003ctd\u003e±10\u003c\/td\u003e\n\u003ctd\u003e340\u003c\/td\u003e\n\u003ctd\u003e150\u003c\/td\u003e\n\u003ctd\u003e3800\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c!-- Additional rows omitted for brevity --\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003ePhysical Dimensions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensions (mm)\u003c\/th\u003e\n\u003cth\u003e±\u003c\/th\u003e\n\u003cth\u003ee\u003c\/th\u003e \u003cth\u003ea\u003c\/th\u003e \u003cth\u003ew\u003c\/th\u003e \u003cth\u003eth\u003c\/th\u003e \u003cth\u003eh\u003c\/th\u003e \u003cth\u003el\u003c\/th\u003e \u003cth\u003ed\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal diameter\u003c\/td\u003e\n\u003ctd\u003e12.7\u003c\/td\u003e\n\u003ctd\u003e3.4 - 6.5\u003c\/td\u003e\n\u003ctd\u003e27.5\u003c\/td\u003e\n\u003ctd\u003e5.7 - 11.7\u003c\/td\u003e\n\u003ctd\u003e31.0\u003c\/td\u003e\n\u003ctd\u003e25.0\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThe weight of these varistors varies with voltage class and can be interpolated accordingly. For detailed lead configurations and packaging options, refer to the datasheet.\u003c\/p\u003e\n\u003cp\u003eFor more detailed specifications and application information, please consult the \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-eps\/eps-b72225s4171k101.pdf\" target=\"_blank\"\u003edatasheet\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNote: RoHS compliance status is unspecified. Please verify if required for your application.\u003c\/em\u003e\u003c\/p\u003e","published_at":"2025-08-11T13:33:58+05:30","created_at":"2025-08-11T13:33:58+05:30","vendor":"Waldom Electonics","type":"Circuit Protection","tags":["Circuit","EPCOS","IMPORT_CSV","Varistors","WLDM"],"price":31183,"price_min":31183,"price_max":31183,"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":50606067155261,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"B72225S4171K101","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"B72225S4171K101","public_title":null,"options":["Default Title"],"price":31183,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"B72225S4171K101","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/B72225S4171K101_53135713_a82a8d3b.jpg?v=1754899442"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/B72225S4171K101_53135713_a82a8d3b.jpg?v=1754899442","options":["Title"],"media":[{"alt":null,"id":45780795195709,"position":1,"preview_image":{"aspect_ratio":1.0,"height":200,"width":200,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/B72225S4171K101_53135713_a82a8d3b.jpg?v=1754899442"},"aspect_ratio":1.0,"height":200,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/B72225S4171K101_53135713_a82a8d3b.jpg?v=1754899442","width":200}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eElectronics - Circuit Protection Varistor\u003c\/h3\u003e\n\u003cp\u003eIntroducing the EPCOS B72225S4171K101, a high-performance SIOV metal oxide varistor designed for robust circuit protection applications. Manufactured in China (COO: CN) by EPCOS, a TDK Group company, this leaded varistor offers reliable surge current handling and wide operating voltage range, making it ideal for safeguarding electronic circuits against transient voltage spikes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Details:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e B72225S4171K101\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 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 BLK\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Circuit Protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Category:\u003c\/strong\u003e Circuit Protection | Varistors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDatasheet:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-eps\/eps-b72225s4171k101.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRound leaded varistor element with epoxy resin coating, flame-retardant to UL 94 V-0\u003c\/li\u003e\n\u003cli\u003eHigh-energy SuperioR series E4\u003c\/li\u003e\n\u003cli\u003eWide operating voltage range from 130 V RMS to 750 V RMS\u003c\/li\u003e\n\u003cli\u003eHigh surge current capacity up to 20 kA\u003c\/li\u003e\n\u003cli\u003eAll types support duty cycle at 6 kV \/ 3 kA with \u0026gt;10 pulses, compliant with IEC 62368-1, IEC 60950-1, and IEC 61051-2 standards\u003c\/li\u003e\n\u003cli\u003eUL approval to UL 1449 (file number E321126 – exception 580 V)\u003c\/li\u003e\n\u003cli\u003eCertifications include UL, CSA, IEC, and VDE\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eElectrical Specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eOrdering Code\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) 15x (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\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eB72225S4131K101\u003c\/td\u003e\n\u003ctd\u003e130\u003c\/td\u003e\n\u003ctd\u003e170\u003c\/td\u003e\n\u003ctd\u003e20000\u003c\/td\u003e\n\u003ctd\u003e10000\u003c\/td\u003e\n\u003ctd\u003e185\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB72225S4141K101\u003c\/td\u003e\n\u003ctd\u003e140\u003c\/td\u003e\n\u003ctd\u003e180\u003c\/td\u003e\n\u003ctd\u003e20000\u003c\/td\u003e\n\u003ctd\u003e10000\u003c\/td\u003e\n\u003ctd\u003e195\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB72225S4151K101\u003c\/td\u003e\n\u003ctd\u003e150\u003c\/td\u003e\n\u003ctd\u003e200\u003c\/td\u003e\n\u003ctd\u003e20000\u003c\/td\u003e\n\u003ctd\u003e10000\u003c\/td\u003e\n\u003ctd\u003e215\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB72225S4171K101\u003c\/td\u003e\n\u003ctd\u003e175\u003c\/td\u003e\n\u003ctd\u003e225\u003c\/td\u003e\n\u003ctd\u003e20000\u003c\/td\u003e\n\u003ctd\u003e10000\u003c\/td\u003e\n\u003ctd\u003e245\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB72225S4231K101\u003c\/td\u003e\n\u003ctd\u003e230\u003c\/td\u003e\n\u003ctd\u003e300\u003c\/td\u003e\n\u003ctd\u003e20000\u003c\/td\u003e\n\u003ctd\u003e10000\u003c\/td\u003e\n\u003ctd\u003e315\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c!-- Additional rows omitted for brevity --\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eCharacteristics (TA = 25°C):\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\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\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eB72225S4131K101\u003c\/td\u003e\n\u003ctd\u003e205\u003c\/td\u003e\n\u003ctd\u003e±10\u003c\/td\u003e\n\u003ctd\u003e340\u003c\/td\u003e\n\u003ctd\u003e150\u003c\/td\u003e\n\u003ctd\u003e3800\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c!-- Additional rows omitted for brevity --\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003ePhysical Dimensions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensions (mm)\u003c\/th\u003e\n\u003cth\u003e±\u003c\/th\u003e\n\u003cth\u003ee\u003c\/th\u003e \u003cth\u003ea\u003c\/th\u003e \u003cth\u003ew\u003c\/th\u003e \u003cth\u003eth\u003c\/th\u003e \u003cth\u003eh\u003c\/th\u003e \u003cth\u003el\u003c\/th\u003e \u003cth\u003ed\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal diameter\u003c\/td\u003e\n\u003ctd\u003e12.7\u003c\/td\u003e\n\u003ctd\u003e3.4 - 6.5\u003c\/td\u003e\n\u003ctd\u003e27.5\u003c\/td\u003e\n\u003ctd\u003e5.7 - 11.7\u003c\/td\u003e\n\u003ctd\u003e31.0\u003c\/td\u003e\n\u003ctd\u003e25.0\u003c\/td\u003e\n\u003ctd\u003e1.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThe weight of these varistors varies with voltage class and can be interpolated accordingly. For detailed lead configurations and packaging options, refer to the datasheet.\u003c\/p\u003e\n\u003cp\u003eFor more detailed specifications and application information, please consult the \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-eps\/eps-b72225s4171k101.pdf\" target=\"_blank\"\u003edatasheet\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNote: RoHS compliance status is unspecified. Please verify if required for your application.\u003c\/em\u003e\u003c\/p\u003e"}
