Littelfuse TMOV20RP175ML2B7

Littelfuse TMOV and iTMOV thermally protected varistors represent a new development in integrated circuit protection. Both versions consist of radial-lead metal oxide varistors with an integrated thermally activated element designed to disconnect due to overheating under abnormal overvoltage, current-limiting conditions as outlined in UL1449. The integrated thermal element of TMOV and iTMOV varistors, combined with appropriate enclosure design, helps facilitate surge protective device modules in compliance with UL1449 for both plug-connected and permanently connected applications. TMOV and iTMOV varistors provide fast thermal response due to the integrated thermal element being in close proximity to the varistor body. The integrated configuration also offers lower inductance than most discrete solutions, improving clamping performance against fast overvoltage transients. The iTMOV varistor differs from the TMOV varistor in that it includes a third lead for indicating that the varistor has been disconnected from the circuit. This lead facilitates connection to monitoring circuits. In addition, TMOV and iTMOV varistors are wave solderable, simplifying final product assembly and reducing costs and rework associated with hand soldering operations.

• RoHS compliant with halogen-free and lead-free options
• Designed to help surge protector products meet UL1449 standards
• High peak surge current rating up to 10kA
• Wave solderable
• Standard lead form and pitch options
• Operating temperature range -55°C ~ +85°C
• Three-lead version available for indication purposes

• SPD Products
• AC Panel Protection Module
• AC Line Power Supply
• Surge Protection Power Strip
• AC Energy Meter