OverviewAll product unitsProduct unitPassive ComponentsProduct groupEMC ComponentsProduct familySurge ProtectionProduct seriesWE-VS SMT Varistor

WE-VS SMT Varistor

Size Dimen­sions 3DL
(mm)
W
(mm)
H
(mm)
Fl
(mm)
Mount
0402 0.96 0.48 0.5 0.25 SMT
0603 1.6 0.8 0.8 0.3 SMT
0805 2 1.25 0.9 0.3 SMT
1206 3.2 1.6 1.7 0.5 SMT

Characteristics

  • Fast response time
  • Low leakage current
  • Nickel barrier for leadfree soldering
  • Operating temperature: –40 ºC to +85 ºC

Applications

  • Protection of DC distribution
  • Protection of power supply
  • Protection of bus systems and communication lines
  • Limiting of overvoltages
  • Protection of semiconductors
  • Surge protection in accordance with EN 61000-4-5
  • ESD protection in accordance with EN 61000-4-2

Products

All
0402
0603
0805
1206
Order Code Data­sheet Simu­lation DownloadsVRMS
(V)
VDC
(V)
VBR min.
(V)
IPeak
(A)
Wmax
(J)
VClamp
(V)
Test Condition VClampApplicationDesign Kit Samples
82536259SPEC
6 files 2.5 3.3 5.5 30 0.1 13 1.0 A @ 8/20 µs 3 VDC
82537040SPEC
6 files 4 5.5 8 20 0.04 21 1.0 A @ 8/20 µs 5 VDC825998
82536040SPEC
6 files 4 5.5 8 30 0.1 21 1.0 A @ 8/20 µs 5 VDC825998
82550040SPEC
6 files 4 5.5 8 80 0.1 16 1.0 A @ 8/20 µs 5 VDC825998
82531040SPEC
6 files 4 5.5 8 150 0.4 19 1.0 A @ 8/20 µs 5 VDC825998
82557060SPEC
6 files 6 9 12 20 0.05 20 1.0 A @ 8/20 µs
82556060SPEC
6 files 6 9 12 30 0.1 20 1.0 A @ 8/20 µs
82550060SPEC
6 files 6 9 12 80 0.1 20 1.0 A @ 8/20 µs825998
82537070SPEC
6 files 7 9 12.5 20 0.05 30 1.0 A @ 8/20 µs
82536070SPEC
6 files 7 9 13.5 30 0.1 30 1.0 A @ 8/20 µs825998
82550080SPEC
6 files 8 11 15 100 0.1 25 1.0 A @ 8/20 µs825998
82537110SPEC
6 files 11 14 18 10 0.02 38 1.0 A @ 8/20 µs 12 VDC825998
82536110SPEC
6 files 11 14 18 30 0.1 38 1.0 A @ 8/20 µs 12 VDC825998
82550110SPEC
6 files 11 14 18 100 0.1 30 1.0 A @ 8/20 µs 12 VDC825998
82541110SPEC
6 files 11 14 18 200 0.5 35 1.0 A @ 8/20 µs 12 VDC825998
82557140SPEC
6 files 14 18 24 20 0.05 40 1.0 A @ 8/20 µs 12/15 VDC825998
82556140SPEC
6 files 14 18 24 30 0.1 40 1.0 A @ 8/20 µs 12/15 VDC
82536140SPEC
6 files 14 18 25 30 0.1 45 1.0 A @ 8/20 µs 12/15 VDC825998
82550140SPEC
6 files 14 18 24 100 0.2 40 1.0 A @ 8/20 µs 12/15 VDC825998
82551140SPEC
6 files 14 18 24 100 0.3 38 1.0 A @ 8/20 µs 12/15 VDC
82531140SPEC
6 files 14 18 22 150 0.4 35 1.0 A @ 8/20 µs 12/15 VDC825998
82541140SPEC
6 files 14 18 24 200 0.5 45 1.0 A @ 8/20 µs 12/15 VDC
82556170SPEC
6 files 17 22 27 30 0.1 45 1.0 A @ 8/20 µs
82551170SPEC
6 files 17 22 27 100 0.4 45 1.0 A @ 8/20 µs
82556200SPEC
6 files 20 26 33 30 0.1 54 1.0 A @ 8/20 µs 24 VDC825998
82550200SPEC
6 files 20 26 33 100 0.3 54 1.0 A @ 8/20 µs 24 VDC825998
82551200SPEC
6 files 20 26 33 100 0.5 54 1.0 A @ 8/20 µs 24 VDC825998
82541200SPEC
5 files 20 26 33 200 0.7 60 1.0 A @ 8/20 µs 24 VDC
82556250SPEC
6 files 25 30 39 30 0.1 65 1.0 A @ 8/20 µs 24 VDC
82550250SPEC
6 files 25 30 39 100 0.3 65 1.0 A @ 8/20 µs 24 VDC825998
82551250SPEC
6 files 25 30 39 100 0.6 65 1.0 A @ 8/20 µs 24 VDC
82541250SPEC
6 files 25 30 200 1 72 1.0 A @ 8/20 µs 24 VDC825998
82556300SPEC
6 files 30 38 47 30 0.1 77 1.0 A @ 8/20 µs825998
82550300SPEC
6 files 30 38 47 100 0.3 77 1.0 A @ 8/20 µs825998
82551300SPEC
6 files 30 38 47 100 0.7 77 1.0 A @ 8/20 µs
82541300SPEC
6 files 30 38 47 200 1.1 85 1.0 A @ 8/20 µs825998
82550350SPEC
6 files 35 45 56 80 0.3 90 1.0 A @ 8/20 µs825998
82541350SPEC
6 files 35 45 56 200 0.8 90 1.0 A @ 8/20 µs825998
82531400SPEC
6 files 40 56 70 200 1 120 1.0 A @ 8/20 µs 48 VDC825998
82551500SPEC
6 files 50 65 82 100 0.5 135 1.0 A @ 8/20 µs
82551600SPEC
6 files 60 85 100 100 0.6 165 1.0 A @ 8/20 µs825998
Order Code Data­sheet Simu­lation
82536259SPEC
82537040SPEC
82536040SPEC
82550040SPEC
82531040SPEC
82557060SPEC
82556060SPEC
82550060SPEC
82537070SPEC
82536070SPEC
82550080SPEC
82537110SPEC
82536110SPEC
82550110SPEC
82541110SPEC
82557140SPEC
82556140SPEC
82536140SPEC
82550140SPEC
82551140SPEC
82531140SPEC
82541140SPEC
82556170SPEC
82551170SPEC
82556200SPEC
82550200SPEC
82551200SPEC
82541200SPEC
82556250SPEC
82550250SPEC
82551250SPEC
82541250SPEC
82556300SPEC
82550300SPEC
82551300SPEC
82541300SPEC
82550350SPEC
82541350SPEC
82531400SPEC
82551500SPEC
82551600SPEC
Samples
Order Code Data­sheet Simu­lation DownloadsVRMS
(V)
VDC
(V)
VBR min.
(V)
IPeak
(A)
Wmax
(J)
VClamp
(V)
Test Condition VClampApplicationDesign Kit Samples

Assortments

Articles from this product series can be found in the following assortments:

Comments

  • Varistors do not have an endless lifetime. Also a well dimensioned varistor may fail due to enormous overload. This will result in heating, smoke emission and/or displosion of varistor itself. Therefore we recommend to place varistors separate within a box on PCB.Furthermore a fuse should be used in the varistor’s current path, which trips when varistor is destroyed. This fuse avoids secondary currents and therewith caused damages.

Videos

Würth Elektronik Webinar: Effective ESD protection with TVS diodes