BOURNS TBU-DT065-500-WH

Bourns' TBU-DT Series TBU (Transient Blocking Unit) products are ultra-low capacitance, dual unidirectional high-speed surge protection components designed to prevent failures caused by short circuits, AC power cross, induction, and lightning surges. The TBU-DT Series are unidirectional TBU devices that trigger in less than 1 microsecond when current reaches its maximum in only one direction — specifically when the voltage at pin 1 is positive with respect to pin 2, and the voltage at pin 4 is positive with respect to pin 3. There is no current limiting in the opposite polarity, and the TBU device is essentially resistive. Reverse current should not exceed the maximum trigger current level of the TBU device. In DC-biased applications, an external diode can be used to prevent reverse current. The TBU protector blocks surges and provides an effective barrier for sensitive electronics against high voltage or high current during surge events. After the surge, when the voltage across the TBU device drops to the reset voltage Vreset level, the TBU device will reset. On lines without DC bias or with DC bias below Vreset (such as unpowered signal lines), the TBU device resets automatically. TBU devices are available in SMT DFN packages and comply with industry standards including RoHS and lead-free solder reflow requirements.

• Excellent circuit protection
• Overcurrent and overvoltage protection
• Surge blocking up to rated limits
• High-speed performance
• Compact SMT package
• RoHS compliant

• Ethernet ports
• Protection modules and dongles
• Process control equipment
• Test and measurement equipment
• General electronics equipment