TMOV34S Series - (Thermally Protected) Varistor Series

The Littelfuse Industrial TMOV®34Sseries thermally protected varistor represents a new development in circuit protection. It consists of a 34mm square format varistor element ( MOV) with an integral thermally activated element designed to open in the event of overheating due to abnormal over-voltage, limited current conditions.

Certain TMOV®34S devices are offered with a "monitor" lead which may be connected to signalling circuity to indicate if the MOV has been disconnected from the circuit.

TMOV®34S Series devices offer quick thermal response due to the close proximity of the integrated thermal element to the MOV body. The integrated configuration also offers lower inductance than most discreet solutions resulting in improved clamping performance to fast over voltage transients.

UL1449 3rd Edition approval of TMOV34S Series is currently pending related to the integrated thermal element of this series. Contact your Littelfuse product representative to discuss alternatives and for additional information.

Features:
  • US patent for thermally protected MOV - Patent #US6636403
  • High peak current rating up to 40kA
  • -55 to +85 degree C operating temperature range
  • RoHS Compliant and Lead-free
  • Alternative design available with narrow 3mm wide monitor (right) lead
  • Alternative design available with 2 leads only (no monitor lead)

Applications:
  • SPD (TVSS) Products
  • AC Panel Protection Modules
  • AC Line Power Supplies
  • AC Power Meters
  • UPS (Uninterruptable Power Supply)
  • Inverters
  • AC/DC power supplies
  • DIN Rail

Access specifications, certifications, check availability and order parts below

Catalog #SizeVMAX AC (V)VMAX DC (V)WTM (J)(ITM 1xAmps (A)VNDC
(V)
VNDC MIN
(V)
VNDC MAX (V)Vc (V)PolarityStockSamplesCompare
TMOV34S111EP34mm11515023540000163202305Bi-directionalCheckOrder
TMOV34S111M
Replaced By: TMOV34S111MPTMOV34S111MP
14mm11515023540000163202305Bi-directional
TMOV34S111MP34mm11515023540000163202305Bi-directionalCheckOrder
TMOV34S131EP34mm13017527040000184228345Bi-directionalCheckOrder
TMOV34S131M
Replaced By: TMOV34S131MPTMOV34S131MP
14mm13017527040000184228345Bi-directional
TMOV34S131MP34mm13017527040000184228345Bi-directionalCheckOrder
TMOV34S141EP34mm14018829140000198248375Bi-directionalCheckOrder
TMOV34S141M
Replaced By: TMOV34S141MPTMOV34S141MP
14mm14018829140000198248375Bi-directional
TMOV34S141MP34mm14018829140000198248375Bi-directionalCheckOrder
TMOV34S151EP34mm15020030040000212268405Bi-directionalCheckOrder
TMOV34S151M
Replaced By: TMOV34S151MPTMOV34S151MP
14mm15020030040000212268405Bi-directional
TMOV34S151MP34mm15020030040000212268405Bi-directionalCheckOrder
TMOV34S181EP34mm18024033040000254312488Bi-directionalCheckOrder
TMOV34S181M
Replaced By: TMOV34S181MPTMOV34S181MP
14mm18024033040000254312488Bi-directional
TMOV34S181MP34mm18024033040000254312488Bi-directionalCheckOrder
TMOV34S201EP34mm20026533540000283357540Bi-directionalCheckOrder
TMOV34S201M
Replaced By: TMOV34S201MPTMOV34S201MP
20mm20026533540000283357540Bi-directional
TMOV34S201MP34mm20026533540000283357540Bi-directionalCheckOrder
TMOV34S251EP34mm25033037040000354429650Bi-directionalCheckOrder
TMOV34S251M
Replaced By: TMOV34S251MPTMOV34S251MP
20mm25033037040000354429650Bi-directional
TMOV34S251MP34mm25033037040000354429650Bi-directionalCheckOrder
TMOV34S271EP34mm27536940040000389473730Bi-directionalCheckOrder
TMOV34S271M
Replaced By: TMOV34S271MPTMOV34S271MP
20mm27536940040000389473730Bi-directional
TMOV34S271MP34mm27536940040000389473730Bi-directionalCheckOrder
TMOV34S301EP34mm30040043540000433528780Bi-directionalCheckOrder
TMOV34S301M
Replaced By: TMOV34S301MPTMOV34S301MP
20mm30040043540000433528780Bi-directional
TMOV34S301MP34mm30040043540000433528780Bi-directionalCheckOrder
TMOV34S321EP34mm32042046040000462561830Bi-directionalCheckOrder
TMOV34S321M
Replaced By: TMOV34S321MPTMOV34S321MP
20mm32042046040000462561830Bi-directional
TMOV34S321MP34mm32042046040000462561830Bi-directionalCheckOrder
TMOV34S331EP34mm33043547540000476581855Bi-directionalCheckOrder
TMOV34S331M
Replaced By: TMOV34S331MPTMOV34S331MP
20mm33043547540000476581855Bi-directional
TMOV34S331MP34mm33043547540000476581855Bi-directionalCheckOrder
TMOV34S351EP34mm35046050040000505616910Bi-directionalCheckOrder
TMOV34S351M
Replaced By: TMOV34S351MPTMOV34S351MP
20mm35046050040000505616910Bi-directional
TMOV34S351MP34mm35046050040000505616910Bi-directionalCheckOrder
TMOV34S391EP34mm385506550400005556781005Bi-directionalCheckOrder
TMOV34S391M
Replaced By: TMOV34S391MPTMOV34S391MP
20mm385506550400005556781005Bi-directional
TMOV34S391MP34mm385506550400005556781005Bi-directionalCheckOrder
TMOV34S421EP34mm420560600400006107481130Bi-directionalCheckOrder
TMOV34S421M
Replaced By: TMOV34S421MPTMOV34S421MP
20mm420560600400006107481130Bi-directional
TMOV34S421MP34mm420560600400006107481130Bi-directionalCheckOrder
TMOV34S461EP34mm460610620400006427831188Bi-directionalCheckOrder
TMOV34S461M
Replaced By: TMOV34S461MPTMOV34S461MP
20mm46061060400006427831188Bi-directional
TMOV34S461MP34mm46061060400006427831188Bi-directionalCheckOrder
TMOV34S481EP34mm480640650400006708251240Bi-directionalCheckOrder
TMOV34S481M
Replaced By: TMOV34S481MPTMOV34S481MP
20mm480640650400006708251240Bi-directional
TMOV34S481MP34mm480640650400006708251240Bi-directionalCheckOrder
TMOV34S511EP34mm510675700400007359101350Bi-directionalCheckOrder
TMOV34S511M
Replaced By: TMOV34S511MPTMOV34S511MP
20mm510675700400007359101350Bi-directional
TMOV34S511MP34mm510675700400007359101350Bi-directionalCheckOrder
TMOV34S551EP34mm550700735400007709391415Bi-directionalCheckOrder
TMOV34S551M
Replaced By: TMOV34S551MPTMOV34S551MP
20mm550700735400007709391415Bi-directional
TMOV34S551MP34mm550700735400007709391415Bi-directionalCheckOrder
TMOV34S571EP34mm5757307704000080510001480Bi-directionalCheckOrder
TMOV34S571M
Replaced By: TMOV34S571MPTMOV34S571MP
20mm5757307704000080510001480Bi-directional
TMOV34S571MP34mm5757307704000080510001480Bi-directionalCheckOrder
TMOV34S621EP34mm6208008404000088010741589Bi-directionalCheckOrder
TMOV34S621M
Replaced By: TMOV34S621MPTMOV34S621MP
20mm6208008404000088010741589Bi-directional
TMOV34S621MP34mm6208008404000088010741589Bi-directionalCheckOrder
TMOV34S661EP34mm6608509004000094011601720Bi-directionalCheckOrder
TMOV34S661M
Replaced By: TMOV34S661MPTMOV34S661MP
20mm6608509004000094011601720Bi-directional
TMOV34S661MP34mm6608509004000094011601720Bi-directionalCheckOrder
TMOV34S681EP34mm6808909504000098011951172Bi-directionalCheckOrder
TMOV34S681M
Replaced By: TMOV34S681MPTMOV34S681MP
20mm6808909504000098011951772Bi-directional
TMOV34S681MP34mm6808909504000098011951772Bi-directionalCheckOrder
TMOV34S751EP34mm750970105040000108013202000Bi-directionalCheckOrder
TMOV34S751M
Replaced By: TMOV34S751MPTMOV34S751MP
20mm750970105040000108013202000Bi-directional
TMOV34S751MP34mm750970105040000108013202000Bi-directionalCheckOrder
TMOV34S075MP
Obsolete: 2011-03-14
34mm7510216030000117.5106129200Order

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