TRANSIENT BLOCKING UNITS
FU1033
*RoHS Directive 2002/95/EC Jan 27, 2003 including Annex.
Features
■ Superior circuit protection
■ Overcurrent & overvoltage protection
■ Blocks surges up to rated limits
■ High speed performance
■ Small SMT package
■ RoHS compliant*
■ Agency recognition:
Applications
■ Protection modules and dongles
■ Process control equipment
■ Test and measurement equipment
■ General electronics
■ Ethernet ports
■ Set top box LNB ports
Bourns Adds TBU-DT & TBU-KE Series to its TBU® Product Portfolio
Riverside, California - TO BE RELEASED DECEMBER 23, 2010 - Bourns is pleased to announce the release of
its TBU-DT and TBU-KE Series. These products are low capacitance unidirectional high speed protection
components, constructed using MOSFET semiconductor technology, and designed to protect against faults
caused by short circuits, AC power cross, induction and lightning surges. The TBU-DT Series offers a dual
channel option while the TBU-KE Series are single channel devices.
Series TBU-DT065 TBU-DT085 TBU-KE025 TBU-KE040 TBU-KE050
Description Dual Unidirectional Single Unidirectional
Max. Impulse Voltage 650 V 850 V 250 V 400 V 500 V
Max. RMS Voltage 300 V 425 V 100 V 200 V 250 V
Trigger Current Levels 100, 200, 300, 500 mA 50,100, 200, 300, 500 mA
Footprint (mm) 5.0 x 5.0 5.0 x 2.5
This Bourns® TBU® high speed protector placed in the system circuit will monitor the current with the
MOSFET detection circuit triggering, therefore providing an effective barrier for sensitive electronics against
large voltages or currents during surge events.
The TBU-DT and TBU-KE Series are available in a surface mount DFN package which meets industry
standard requirements such as RoHS* and Pb Free solder refl ow profi les.
Product data sheets with detailed specifi cations can be viewed on the Bourns website at www.bourns.com.
T855
0074
E2550
0072
