TMOV20RP130M

Littelfuse's TMOV® and iTMOV® thermally protected varistors represent a new development in integrated circuit protection. Both versions consist of radial-lead metal oxide varistors (MOVs) with an integrated thermally activated element designed to disconnect the circuit when overheating occurs due to abnormal overvoltage, current limiting, or other conditions specified by UL1449. The integrated thermal element in TMOV® and iTMOV® varistors, combined with appropriate housing design, helps SPD modules meet UL1449 requirements in both power line connected and permanently connected applications. TMOV® and iTMOV® varistors feature fast thermal response due to the close proximity of the integrated thermal element to the MOV body. Compared to most discrete solutions, this integrated configuration offers lower inductance, resulting in superior clamping performance against fast overvoltage transients. The iTMOV® varistor differs from the TMOV® varistor in that it includes a third lead for indicating when the MOV 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 by reducing costs and rework associated with hand soldering operations.

Applications

• Surge Protective Device (SPD) Products
• AC Panel Protection Modules
• AC Line Power Supply
• Surge Protection Power Strip
• AC Power Meter

Key features

• RoHS compliant, available in halogen-free and lead-free versions
• Designed to help SPD products meet UL1449 standards
• High peak surge current rating up to 10kA
• Wave solderable
• Standard lead form and pitch options available
• Operating temperature range: -85°C to +85°C
• Three-pin version available for indication function