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TBU-RS055-300-WH

BOURNS
Part Number TBU-RS055-300-WH
Manufacturer BOURNS
Description High-Speed Protector
Published Aug 11, 2020
Detailed Description 92R7805030 Features n Dual channel protector for RS-485 interfaces n Aids compliance to IEC 61000-4-2 (ESD), IEC 61000-...
Datasheet PDF File TBU-RS055-300-WH PDF File

TBU-RS055-300-WH
TBU-RS055-300-WH

Overview
92R7805030 Features n Dual channel protector for RS-485 interfaces n Aids compliance to IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT) and IEC 61000-4-5 (Surge) standards n Fast protection response time (1 µs) n RoHS compliant* Applications n RS-485 interface surge protection n AISG (Antenna Interface Standards Group) modem protection TBU-RSxxx-300-WH - TBU® High-Speed Protector General Information Bourns® Model TBU-RSxxx-300-WH Series is an integrated dual channel Transient Blocking Unit (TBU) overcurrent device and TVS overvoltage protector for the RS-485 communications interface.
When coupled with an overvoltage protector like the Bourns® GDT (Model 2030-42T-SM-RPLF) or TISP® Thyristor Surge Protector (Model TISP4350J3BJR-S), the integrated solution aids compliance to IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT) and IEC 61000-4-5 (Surge) standards (see Application section).
Apart from a reduction in the number of components used, there is also a savings of 52 % in board space when compared to a discrete solution.
The Model TBU-RSxxx-300-WH Series is available in a DFN package and meets industry standards such as RoHS and Pb-free solder reflow profiles.
Functional Block Diagram Pin 7 Media B (MB) LINE Pin 1 Media A (MA) TBU® Device Pin 5 Transceiver B (TB) Pin 4 GND PHY Pin 3 Transceiver A (TA) Absolute Maximum Ratings (@ TA = 25 °C Unless Otherwise Noted) Symbol Vimp Vrms Top Tamax ESD VWM Parameter +/- MA to TA or +/- MB to TB; Peak impulse voltage withstand with duration less than 10 ms +/- MA to TA or +/- MB to TB with GND floating; Continuous A.
C.
RMS voltage Operating temperature range Maximum ambient temperature ESD protection per IEC 61000-4-2 - Contact discharge Maximum working voltage (Line to PHY or reverse) Part Number Value Unit TBU-RS055-300-WH 550 TBU-RS085-300-WH 850 V TBU-RS055-300-WH 250 TBU-RS085-300-WH 425 V -55 to +125 °C +125 °C ±2 kV 12 or -7 V Electrical Characteristics (@ TA = 25 °C Unless Otherwise Noted) Symbol I...


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