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Würth Elektronik - Circuit Protection

Würth Elektronik: Your trusted partner for high-quality electronic components

Explore the wide range of components, driving innovation and excellence in electronics. Together, we shape the future of electronics – rely on quality and innovation.

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More than you expect

One of the world's leading manufacturers of electronic and electromechanical components, ensures global availability of its products. WE offers a wide range of products, making it the perfect choice for anyone looking to add value to their electronic projects. The company has 14 manufacturing facilities worldwide, which guarantee rapid delivery of components. The product range includes EMC components, power inductors, transformers, RF components, varistors, capacitors, resistors, quartz crystals, oscillators, power modules, Wireless Power Transfer, LEDs sensors, connectors, power supply elements, switches, push-buttons, connection technology, fuse holders and solutions for wireless data transmission.

#askLorandt explains: Short explaination videos from engineer to engineer

Short explanation videos which demonstrate the basics of passive, electromechanical, optoelectronical and active components and applications.

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Join the world of e-mobility

With their automotive components, WE eliminate the noise of e-mobility and much more.

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Application Notes - Practical Information For You

Read about solutions and well-defined applications and methods from WE engineers.

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Featured products

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Product
Price
Manufacturer
Diameter
Voltage Rating - DC
Voltage Rating - AC
Width
Length
Operating Temperature Max.
Operating Temperature Min.
Height
Storage Temperature Max.
Storage Temperature Min.
Ambient Temperature Max.
Ambient Temperature Min.
Voltage Rating
Rated Current
Voltage Rating Max.
Holder Material
Holder Colour
Assembly Type
Fuse Compatibility
IP Rating
Insulation Resistance Min.
New to us
Varistor, 14mm, 550VAC, 745VDC 304-69-497 820445511EVaristor, 14mm, 550VAC, 745VDC
CHF 7.45 (Exc. Vat)
Pack of 10 pieces
CHF 7.45
Würth Elektronik14 mm745 V550 V14 mm45.5 mm85 °C-40 °C9.6 mm-------------
New to us
Varistor, 14mm, 320VAC, 418VDC 304-69-496 820443211EVaristor, 14mm, 320VAC, 418VDC
CHF 5.21 (Exc. Vat)
Pack of 10 pieces
CHF 5.21
Würth Elektronik14 mm418 V320 V14 mm51.5 mm85 °C-40 °C7.2 mm-------------
New to us
Varistor, 7mm, 50VAC, 65VDC 304-34-243 820475001Varistor, 7mm, 50VAC, 65VDC
CHF 3.45 (Exc. Vat)
Pack of 5 pieces
CHF 3.45
Würth Elektronik7 mm65 V50 V9 mm37 mm85 °C-40 °C3.8 mm-------------
New to us
Varistor, 14mm, 130VAC, 170VDC 304-34-242 820441311EVaristor, 14mm, 130VAC, 170VDC
CHF 3.99 (Exc. Vat)
Pack of 5 pieces
CHF 3.99
Würth Elektronik14 mm170 V130 V16.5 mm44.5 mm125 °C-40 °C4.8 mm60 °C-20 °C-----------
New to us
SMD Varistor 30A 17V 301-90-147 82556170SMD Varistor 30A 17V
CHF 0.707 (Exc. Vat)
Per piece
CHF 0.707
Würth Elektronik---0.8 mm1.6 mm--0.9 mm125 °C-50 °C85 °C-40 °C17 V30 A-------
New to us
SMD Varistor 200A 18V 301-90-136 82541140SMD Varistor 200A 18V
CHF 0.7272 (Exc. Vat)
Per piece
CHF 0.7272
Würth Elektronik--------125 °C-40 °C--18 V200 A-------
New to us
SMD Varistor 20A 7V 301-90-133 82537070SMD Varistor 20A 7V
CHF 0.5656 (Exc. Vat)
Per piece
CHF 0.5656
Würth Elektronik---0.5 mm1 mm--0.6 mm125 °C-50 °C85 °C-40 °C7 V20 A-------
New to us
SMD Varistor 30A 18V 301-90-131 82536140SMD Varistor 30A 18V
CHF 0.707 (Exc. Vat)
Per piece
CHF 0.707
Würth Elektronik--------125 °C-40 °C--18 V30 A-------
New to us
Varistor, 7mm, 130VAC, 170VDC 301-90-118 820571311Varistor, 7mm, 130VAC, 170VDC
CHF 0.6161 (Exc. Vat)
Per piece
CHF 0.6161
Würth Elektronik7 mm170 V130 V9 mm37 mm125 °C-40 °C4.1 mm125 °C-40 °C-----------
New to us
Varistor, 7mm, 115VAC, 150VDC 301-90-117 820571111Varistor, 7mm, 115VAC, 150VDC
CHF 0.5252 (Exc. Vat)
Per piece
CHF 0.5252
Würth Elektronik7 mm150 V115 V9 mm37 mm125 °C-40 °C3.9 mm125 °C-40 °C-----------
New to us
Varistor, 5mm, 130VAC, 170VDC 301-90-114 820551311Varistor, 5mm, 130VAC, 170VDC
CHF 0.3586 (Exc. Vat)
Per piece
CHF 0.3586
Würth Elektronik5 mm170 V130 V7.5 mm35 mm125 °C-40 °C4.1 mm125 °C-40 °C-----------
New to us
Varistor, 20mm, 130VAC, 170VDC 301-90-110 820521311Varistor, 20mm, 130VAC, 170VDC
CHF 0.8383 (Exc. Vat)
Per piece
CHF 0.8383
Würth Elektronik20 mm170 V130 V23 mm52 mm125 °C-40 °C5.3 mm125 °C-40 °C-----------
New to us
Varistor, 10mm, 20VAC, 26VDC 301-90-107 820512001Varistor, 10mm, 20VAC, 26VDC
CHF 0.5508 (Exc. Vat)
Per piece
CHF 0.5508
Würth Elektronik10 mm26 V20 V12.5 mm42 mm85 °C-40 °C5.1 mm-------------
New to us
Fuse Holder 5 x 20 mm / 6.3 x 32 mm 10MOhm 250V 6.3A Black Polyamide 6.6 In-Line IP00 133-15-249 PTF/80AFuse Holder 5 x 20 mm / 6.3 x 32 mm 10MOhm 250V 6.3A Black Polyamide 6.6 In-Line IP00
CHF 2.86 (Exc. Vat)
Per piece
CHF 2.86
Würth Elektronik---14 mm57 mm--11.5 mm--85 °C-30 °C-6.3 A250 VPolyamide 6.6BlackIn-Line5 x 20 mm ...IP0010 MOhm
Offer
Open Fuse Holder 5 x 20 mm 133-15-280 PTF/60Open Fuse Holder 5 x 20 mm
CHF 0.4039 (Exc. Vat)
Per piece
CHF 0.4039
Würth Elektronik---9 mm22.6 mm--16.5 mm----250 V6.3 A-Polyamide 6.6WhiteTHT5 x 20 mmIP00-
Offer
Varistor, 20mm, 275VAC, 300VDC 301-90-102 820422711Varistor, 20mm, 275VAC, 300VDC
CHF 1.05 CHF 5.63 (Exc. Vat) Save 81%
Per piece
CHF 1.05
CHF 5.63
Würth Elektronik20 mm300 V275 V23 mm52 mm125 °C-40 °C7.2 mm125 °C-40 °C-----------
Offer
Protective cover 5 x 20 mm 133-15-025 BS140Protective cover 5 x 20 mm
CHF 0.4107 (Exc. Vat)
Per piece
CHF 0.4107
Würth Elektronik---9 mm26.6 mm--14.5 mm----250 V6.3 A-ThermoplasticClear TransparentSnap-In5 x 20 mm--
Open Fuse Holder 5 x 20 mm Pack of 10 pieces 304-45-142 PTF/75Open Fuse Holder 5 x 20 mm Pack of 10 pieces
CHF 6.89 (Exc. Vat)
Pack of 10 pieces
CHF 6.89
Würth Elektronik---9.4 mm24.4 mm--15 mm----250 V6.3 A-ThermoplasticGreenTHT5 x 20 mmIP00-
Fuse Holder Clip 5 x 20 mm Pack of 10 pieces 304-44-938 696122003001Fuse Holder Clip 5 x 20 mm Pack of 10 pieces
CHF 2.54 (Exc. Vat)
Pack of 10 pieces
CHF 2.54
Würth Elektronik---9.4 mm24.4 mm--8.2 mm120 °C-30 °C-----PolyamideGreenPCB5 x 20 mm--
SMD Varistor 150A 5.5V Pack of 5 pieces 304-43-276 82531040SMD Varistor 150A 5.5V Pack of 5 pieces
CHF 4.12 (Exc. Vat)
Pack of 5 pieces
CHF 4.12
Würth Elektronik--------125 °C-40 °C--5.5 V150 A-------
Fuse Holder Clip 5 x 20 mm Pack of 10 pieces 20A 304-38-070 696108003002Fuse Holder Clip 5 x 20 mm Pack of 10 pieces 20A
CHF 6.89 (Exc. Vat)
Pack of 10 pieces
CHF 6.89
Würth Elektronik---9.4 mm24.4 mm--11.5 mm120 °C-30 °C--250 V20 A-Copper AlloyGreenPCB5 x 20 mmIP00-
SMD Varistor 100A 14V Pack of 5 pieces 304-34-264 82551140SMD Varistor 100A 14V Pack of 5 pieces
CHF 3.64 (Exc. Vat)
Pack of 5 pieces
CHF 3.64
Würth Elektronik---1.6 mm3.2 mm--1.5 mm125 °C-50 °C85 °C-40 °C14 V100 A-------
SMD Varistor 1A 11V Pack of 5 pieces 304-34-260 82550110SMD Varistor 1A 11V Pack of 5 pieces
CHF 3.10 (Exc. Vat)
Pack of 5 pieces
CHF 3.10
Würth Elektronik---1.25 mm2 mm--1.2 mm60 °C-20 °C85 °C-40 °C11 V1 A-------
SMD Varistor 30A 11V Pack of 5 pieces 304-34-256 82536110SMD Varistor 30A 11V Pack of 5 pieces
CHF 3.15 (Exc. Vat)
Pack of 5 pieces
CHF 3.15
Würth Elektronik---0.8 mm1.6 mm--0.9 mm125 °C-50 °C85 °C-40 °C11 V30 A-------
SMD Varistor 200A 56V Pack of 5 pieces 304-34-254 82531400SMD Varistor 200A 56V Pack of 5 pieces
CHF 3.69 (Exc. Vat)
Pack of 5 pieces
CHF 3.69
Würth Elektronik--------125 °C-40 °C--56 V200 A-------