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Series: SM7
SM7 Series - Surface Mount Varistor for AC Line Protection
Technology: Varistors

The Littelfuse SM7 Series is a plastic-encapsulated surface-mount metal oxide varistor (MOV) transient voltage surge suppressor that is designed to be operated continuously across AC power lines.

The series comprises a Nylon molded package with tin plated lead frame for soldering to board. The surface mount SM7 Series is based on radial 7mm internal varistor element with similar characteristics to the Littelfuse LA / ZA series of varistor.

Features:
  • Electrical equivalent to leaded types LA/ZA series
  • AC Voltage Rating 275 V to 510VAC rms
  • No De-Rating up to 85°C ambient
  • Good solderability
  • Available in tape and reel
  • Application of AC power meters


    • 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
    Cart
    V275SM7 11.5x8.3x6.0mm 275 369 23 1200 431 389 473 710 [Check] [Add]
    V300SM7 11.5x8.3x6.0mm 300 405 25 1200 468 420 517 775 [Check] [Add]
    V320SM7 11.5x8.3x6.0mm 320 420 25 1200 513 462 565 850 [Check] [Add]
    V385SM7 11.5x8.3x6.0mm 385 505 27 1200 620 558 682 1025 [Check] [Add]
    V420SM7 11.5x8.3x6.0mm 420 560 30 1200 679 610 748 1120 [Check] [Add]
    V460SM7 11.5x8.3x6.0mm 460 615 37 1200 715 640 790 1190 [Check] [Add]
    V480SM7 11.5x8.3x6.0mm 480 640 35 1200 748 670 825 1240 [Check] [Add]
    V510SM7 11.5x8.3x6.0mm 510 675 40 1200 822 735 910 1200 [Check] [Add]