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FBMOV Series Type 1 SPD Varistors


Littelfuse fused-body varistors provide complete overvoltage circuit protection


The Littelfuse FBMOV Series offers complete overvoltage circuit protection in a single, compact configuration helping customers simplify their designs and reduce cost. The Littelfuse varistor surge protection fuse, combined with a varistor, offers non-fragmenting protection when subjected to high fault current (up to 200 kA). The integrated, thermally activated element opens quickly in the event of overheating during abnormal overvoltage, limited current, and intermediate current condition. The element offers quick response because of its close proximity to the MOV body. Datasheet

Littelfuse FBMOV Series Type 1 SPD Varistors
Features
  • A complete overvoltage circuit protection solution and compact package to help customer simplify design and save mounting space
  • High surge density device: 40 kA single 8/20 surge
  • Fault current capability up to 200,000 A without external protection
  • Capable for clearing limited current, intermediate current, and short circuit current, in the condition of abnormal sustained overvoltage condition
  • Suitable for type 1 SPD application
  • Standard operating voltage range up to 750 VAC
  • RoHS compliant
  • UL 1449 short circuit current rating test selection 39.2
  • Littelfuse FBMOV Series Varistors
  • UL 1449 intermediate current test selection 39.3
  • UL 1449 limited current abnormal over voltage test selection 39.4

Digi-Key P/N Manufacturer P/N Description
F4376-ND FBMOV115M VARISTOR 40KA THRML PRTCD 115V
F4377-ND FBMOV130M VARISTOR 40KA THRML PRTCD 130V
F4378-ND FBMOV140M VARISTOR 40KA THRML PRTCD 140V
F4379-ND FBMOV150M VARISTOR 40KA THRML PRTCD 150V
F4380-ND FBMOV175M VARISTOR 40KA THRML PRTCD 175V
F4381-ND FBMOV230M VARISTOR 40KA THRML PRTCD 230V
F4382-ND FBMOV250M VARISTOR 40KA THRML PRTCD 250V
F4383-ND FBMOV275M VARISTOR 40KA THRML PRTCD 275V
F4384-ND FBMOV300M VARISTOR 40KA THRML PRTCD 300V
F4385-ND FBMOV320M VARISTOR 40KA THRML PRTCD 320V
F4386-ND FBMOV385M VARISTOR 40KA THRML PRTCD 385V
F4387-ND FBMOV440M VARISTOR 40KA THRML PRTCD 440V
F4388-ND FBMOV460M VARISTOR 40KA THRML PRTCD 460V
F4389-ND FBMOV510M VARISTOR 40KA THRML PRTCD 510V
F4390-ND FBMOV550M VARISTOR 40KA THRML PRTCD 550V
F4391-ND FBMOV625M VARISTOR 40KA THRML PRTCD 625V
F4392-ND FBMOV750M VARISTOR 40KA THRML PRTCD 750V