Littelfuse Distributor

TCMOV34S Series Thermal Varistor


Varistors from Littelfuse protect high energy circuits from short circuit conditions


The Littelfuse TCMOV 34S series consists of a 34 mm²-format varistor element (MOV) that offers high maximum surge capability (50 kA) together with an integrated thermally active element. The TCMOV 34S series varistor is designed specifically to protect high-energy circuits from the short circuit (SCCR) conditions and Abnormal Overvoltage Intermediate Current conditions as specified in UL1449 (3rd edition).

The device integrates a micro-switch which is triggered by a mechanical structure that makes the indicator circuit isolated from the main power. If the device disconnects from the system power, the switch will change status. These features simplify the design and save cost for the customer. Datasheet

Littelfuse TCMOV34S Series Thermal Varistor
Features
  • High peak-surge-current handling capability and high energy-absorption capability
  • Short circuit current rating: 200 kA, In value: 20 kA; Itm value 50 kA
  • TCMOV consists of a 34 mm² varistor with an integral thermal disconnect system designed to open in the event of overheating due to abnormal overvoltage conditions
  • Compact design of MOV and Switch
  • Lead-free and RoHS compliant

Digi-Key P/N Manufacturer P/N Description
F5868-ND TCMOV34S111NP VARISTOR THERMAL 115VRMS 34MM SQ
F5869-ND TCMOV34S131NP VARISTOR THERMAL 130VRMS 34MM SQ
F5870-ND TCMOV34S151NP VARISTOR THERMAL 150VRMS 34MM SQ
F5871-ND TCMOV34S181NP VARISTOR THERMAL 180VRMS 34MM SQ
F5872-ND TCMOV34S201NP VARISTOR THERMAL 200VRMS 34MM SQ
F5873-ND TCMOV34S251NP VARISTOR THERMAL 250VRMS 34MM SQ
F5874-ND TCMOV34S271NP VARISTOR THERMAL 275VRMS 34MM SQ
F5875-ND TCMOV34S301NP VARISTOR THERMAL 300VRMS 34MM SQ
F5876-ND TCMOV34S321NP VARISTOR THERMAL 320VRMS 34MM SQ
F5877-ND TCMOV34S421NP VARISTOR THERMAL 420VRMS 34MM SQ
F5878-ND TCMOV34S461MP VARISTOR THERM 460VRMS ISOL 34MM
F5879-ND TCMOV34S461NP VARISTOR THERMAL 460VRMS 34MM SQ
F5880-ND TCMOV34S511MP VARISTOR THERM 510VRMS ISOL 34MM
F5881-ND TCMOV34S511NP VARISTOR THERMAL 510VRMS 34MM SQ
F5882-ND TCMOV34S551NP VARISTOR THERMAL 550VRMS 34MM SQ