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Series: TMOV34S
TMOV34S® Thermally Protected Varistor Series

The Littelfuse Industrial TMOV34S® series 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 TMOV34S 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.

TMOV34S 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.

TMOV34S461MP – TMOV34S751MP lead-free products are currently pending UL1449 3rd edition approval. 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



Electrical Characteristics

Access specifications, certifications, check availability and order parts below:

Check distributor stock availability by clicking on the [CHECK] link. View certification PDF files by clicking on the certification logo. View the part details by clicking on the part number. To order sample parts, click on the [ADD] link. Click on the 'Key' button to view definitions for each column header. Sort parts by clicking on the column you wish to sort by.


CatalogNo Certs. Size VMAX AC (V) VMAX DC (V) WTM (J) (ITM 1xAmps (A) VNDC
(V) 		VNDC MIN
(V) 		VNDC MAX (V) Vc (V) Stock Sample
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TMOV34S075MP
Obsolete: 2011-03-14 		34mm 75 102 160 30000 117.5 106 129 200 n/a [Add]
TMOV34S111EP 34mm 115 150 280 40000 163 202 305 [Check] [Add]
TMOV34S111M
Replaced By TMOV34S111MP 		34mm 115 150 280 40000 163 202 305 n/a n/a
TMOV34S111MP 34mm 115 150 280 40000 163 202 305 [Check] [Add]
TMOV34S131EP 34mm 130 175 310 40000 184 228 345 [Check] [Add]
TMOV34S131M
Replaced By TMOV34S131MP 		34mm 130 175 310 40000 184 228 345 n/a n/a
TMOV34S131MP 34mm 130 175 310 40000 184 228 345 [Check] [Add]
TMOV34S141EP 34mm 140 188 340 40000 198 248 375 [Check] [Add]
TMOV34S141M
Replaced By TMOV34S141MP 		34mm 140 188 340 40000 198 248 375 n/a n/a
TMOV34S141MP 34mm 140 188 340 40000 198 248 375 [Check] [Add]
TMOV34S151EP 34mm 150 200 360 40000 212 268 405 [Check] [Add]
TMOV34S151M
Replaced By TMOV34S151MP 		34mm 150 200 360 40000 212 268 405 n/a n/a
TMOV34S151MP 34mm 150 200 360 40000 212 268 405 [Check] [Add]
TMOV34S181EP 34mm 180 240 400 40000 254 312 488 [Check] [Add]
TMOV34S181M
Replaced By TMOV34S181MP 		34mm 180 240 400 40000 254 312 488 n/a n/a
TMOV34S181MP 34mm 180 240 400 40000 254 312 488 [Check] [Add]
TMOV34S201EP 34mm 200 265 430 40000 283 357 540 [Check] [Add]
TMOV34S201M
Replaced By TMOV34S201MP 		34mm 200 265 430 40000 283 357 540 n/a n/a
TMOV34S201MP 34mm 200 265 430 40000 283 357 540 [Check] [Add]
TMOV34S251EP 34mm 250 330 490 40000 354 429 650 [Check] [Add]
TMOV34S251M
Replaced By TMOV34S251MP 		34mm 250 330 490 40000 354 429 650 n/a n/a
TMOV34S251MP 34mm 250 330 490 40000 354 429 650 [Check] [Add]
TMOV34S271EP 34mm 275 369 550 40000 389 473 730 [Check] [Add]
TMOV34S271M
Replaced By TMOV34S271MP 		34mm 275 369 550 40000 389 473 730 n/a n/a
TMOV34S271MP 34mm 275 369 550 40000 389 473 730 [Check] [Add]
TMOV34S301EP 34mm 300 400 590 40000 433 528 780 [Check] [Add]
TMOV34S301M
Replaced By TMOV34S301MP 		34mm 300 400 590 40000 433 528 780 n/a n/a
TMOV34S301MP 34mm 300 400 590 40000 433 528 780 [Check] [Add]
TMOV34S321EP 34mm 320 420 640 40000 462 561 830 [Check] [Add]
TMOV34S321M
Replaced By TMOV34S321MP 		34mm 320 420 640 40000 462 561 830 n/a n/a
TMOV34S321MP 34mm 320 420 640 40000 462 561 830 [Check] [Add]
TMOV34S331EP 34mm 330 435 650 40000 476 581 855 [Check] [Add]
TMOV34S331M
Replaced By TMOV34S331MP 		34mm 330 435 650 40000 476 581 855 n/a n/a
TMOV34S331MP 34mm 330 435 650 40000 476 581 855 [Check] [Add]
TMOV34S351EP 34mm 350 460 700 40000 505 616 910 [Check] [Add]
TMOV34S351M
Replaced By TMOV34S351MP 		34mm 350 460 700 40000 505 616 910 n/a n/a
TMOV34S351MP 34mm 350 460 700 40000 505 616 910 [Check] [Add]
TMOV34S391EP 34mm 385 506 800 40000 555 678 1005 [Check] [Add]
TMOV34S391M
Replaced By TMOV34S391MP 		34mm 385 506 800 40000 555 678 1005 n/a n/a
TMOV34S391MP 34mm 385 506 800 40000 555 678 1005 [Check] [Add]
TMOV34S421EP 34mm 420 560 910 40000 610 748 1130 [Check] [Add]
TMOV34S421M
Replaced By TMOV34S421MP 		34mm 420 560 910 40000 610 748 1130 n/a n/a
TMOV34S421MP 34mm 420 560 910 40000 610 748 1130 [Check] [Add]
TMOV34S461EP 34mm 460 610 960 40000 642 783 1188 [Check] [Add]
TMOV34S461M
Replaced By TMOV34S461MP 		34mm 460 610 960 40000 642 783 1188 n/a n/a
TMOV34S461MP 34mm 460 610 960 40000 642 783 1188 [Check] [Add]
TMOV34S481EP 34mm 480 640 960 40000 670 825 1240 [Check] [Add]
TMOV34S481M
Replaced By TMOV34S481MP 		34mm 480 640 960 40000 670 825 1240 n/a n/a
TMOV34S481MP 34mm 480 640 960 40000 670 825 1240 [Check] [Add]
TMOV34S511EP 34mm 510 675 960 40000 735 910 1350 [Check] [Add]
TMOV34S511M
Replaced By TMOV34S511MP 		34mm 510 675 960 40000 735 910 1350 n/a n/a
TMOV34S511MP 34mm 510 675 960 40000 735 910 1350 [Check] [Add]
TMOV34S551EP 34mm 550 700 965 40000 770 939 1415 [Check] [Add]
TMOV34S551M
Replaced By TMOV34S551MP 		34mm 550 700 965 40000 770 939 1415 n/a n/a
TMOV34S551MP 34mm 550 700 965 40000 770 939 1415 [Check] [Add]
TMOV34S571EP 34mm 575 730 990 40000 805 1000 1480 [Check] [Add]
TMOV34S571M
Replaced By TMOV34S571MP 		34mm 575 730 990 40000 805 1000 1480 n/a n/a
TMOV34S571MP 34mm 575 730 990 40000 805 1000 1480 [Check] [Add]
TMOV34S621EP 34mm 620 800 1010 40000 880 1074 1589 [Check] [Add]
TMOV34S621M
Replaced By TMOV34S621MP 		34mm 620 800 1010 40000 880 1074 1589 n/a n/a
TMOV34S621MP 34mm 620 800 1010 40000 880 1074 1589 [Check] [Add]
TMOV34S661EP 34mm 660 850 1030 40000 940 1160 1720 [Check] [Add]
TMOV34S661M
Replaced By TMOV34S661MP 		34mm 660 850 1030 40000 940 1160 1720 n/a n/a
TMOV34S661MP 34mm 660 850 1030 40000 940 1160 1720 [Check] [Add]
TMOV34S681EP 34mm 680 890 1100 40000 980 1195 1172 [Check] [Add]
TMOV34S681M
Replaced By TMOV34S681MP 		34mm 680 890 1100 40000 980 1195 1772 n/a n/a
TMOV34S681MP 34mm 680 890 1100 40000 980 1195 1772 [Check] [Add]
TMOV34S751EP 34mm 750 970 1200 40000 1080 1320 2000 [Check] [Add]
TMOV34S751M
Replaced By TMOV34S751MP 		34mm 750 970 1200 40000 1080 1320 2000 n/a n/a
TMOV34S751MP 34mm 750 970 1200 40000 1080 1320 2000 [Check] [Add]