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Bourns TBU

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Bourns Announces
Breakthrough Transient Blocking Unit (TBU ®)


New Technology Bourns' new TBU ® devices provide extremely effective, wide bandwidth circuit protection against lightning, power induction, power cross, and short circuit events in a wide variety of Ethernet, Voice over IP (VoIP), Very High Speed DSL (VDSL), and Gigabit Passive Optical Networking (GPON) applications. The TBU product is also used by customers in industrial, test, and measurement, sensors, and transportation applications.

All Bourns TBU® products are resettable for full functionality after multiple fault events and offer high-speed circuit protection up to 3 gigahertz (GHz). While Bourns' new TBU line exceeds system circuit protection requirements, the products are also a cost-effective solution that reduces warranty returns. TBU technology blocks transients through a current disconnecting mechanism rather than diverting or shunting the surge to ground. This virtually eliminates latency which enables surge protection within nanoseconds.



Additional Resources:

Bourns Gas Discharge Tube for RS-485 Ports

Bourns Dual Bi-Directional




Series


New!
PK



New!
PL



P40

Product Photo
PK PL
P40
P-G
Datasheet
Datasheet Datasheet Datasheet Datasheet Datasheet Datasheet Datasheet Datasheet
Description
Dual Bidirectional, MOSFET Semiconductor technology, for SLIC/Cable/DSL
Dual Bidirectional, industry's first ECL triggered by excessive voltage or current, for SLIC/Cable/DSL
Bidirectional,
high-speed, MOSFET Semiconductor technology
Bidirectional, for Voice
Max Impulse Voltage
500V, 600V, 850V
500V, 600V. 850V 40V 500V, 850V
Max RMS Voltage
300V, 350V, 425V
300V, 350V, 425V 28V 300V, 425V
Trigger Current Levels
100mA
100mA, 200mA 240mA 100mA, 200mA
Trigger Time
1µs 1µs 1µs 1µs
Footprint (mm)
6.5x4
6.5x4 4x4 6x4
Design Kits
TBU-LAB1
SLIC VOiP
TBU Protection Design Kit
16 part numbers
105 total parts
Datasheet
TBU-LAB1
SLIC VOiP
TBU Protection Design Kit
16 part numbers
105 total parts
Datasheet

In stock, but not recommended for new designs. TBU-PL is preferred.

Bourns Single BiDirectional




Series

New!
CX


New!
CA

Product Photo
CX
CA C
Datasheet
TBU-CX datasheet Datasheet TBU-CA datasheet Datasheet C650, C850 Datasheet Datasheet
Description
Single Programmable Dual Bidirectional, MOSFET Semiconductor technology, for voice/VDSL cards *see below for GDTs
Single Bidirectional, MOSFET Semiconductor technology, for voice/VDSL cards
Bidirectional , for general electronics
Max Impulse Voltage
250V, 400V, 500V, 650V, 850V 250V, 400V, 500V, 650V, 850V 650V, 850V
Max RMS Voltage
100V, 200V, 250V, 300V, 425V 100V, 200V, 250V, 300V, 425V 300V, 425V
Trigger Current Levels
500mA@R ext -0 ohm
50mA, 100mA, 200mA, 300mA, 500mA 100mA, 180mA, 260mA
Trigger Time
1µs 1µs 1µs
Footprint (mm)
8.25x4 6.5x4 8x4
Design Kits
TBU-LAB2
BiDirectional TBU Port Solution Design Kit
26 part numbers 155 total parts
TBU-LAB2
BiDirectional TBU Port Solution Design Kit
26 part numbers 155 total parts
In stock, but not recommended for new designs. TBU-CA is preferred.

* Bourns Gas Discharge Tubes for CA Series TBU ® s

MINIATURE 2-POLE
Part Number

Voltage
5 kV/ µ s
Impulse Voltage
DC Breakover Voltage
Companion
Devices

Application
2031-15T-SMLF
60V 500V 150V TBU-CA050-500-WH VDSL
2031-23T-SMLF 185V 650V 230V TBU-CA065-100-WH SDI
2031-42T-SMLF 360V 850V 420V TBU-CA085-200-WH RS485
RS-485 PROTECTION
Part Number

Companion
Devices

Application
2030-23T-SM-RPLF - - -
CDSOT23-SM712 (TVS Diode)
RS485
3-POLE FAST DISCHARGE
Part Number
Voltage 5 kV/ µ s
Impulse Voltage
DC Breakover Voltage
Companion
Devices

Application
2020-15T 52V 500 60V TBU-CA050-500-WH VDSL
2020-23T 80V 650 180V TBU-CA065-100-WH SDI
2020-42T 135V 850 360V TBU-CA085-200-WH RS485


Bourns Dual Unidirectional




Series



New!
DT



P-U

Product Photo
TBU-DT
P650-U, P850U
Datasheet
TBU-DT Datasheet Datasheet P650-U, P850U Datasheet Datasheet
Description
Dual Unidirectional, for Ethernet ports

Unidirectional, for Ethernet
Max Impulse Voltage
650V, 850V

650V, 850V
Max RMS Voltage
300V, 425V
300V, 425V
Trigger Current Levels
100mA, 200mA, 300mA, 500mA

100mA, 180mA, 260mA
Trigger Time
1µs 1µs
Footprint (mm)
5x5
8x4
Design Kits
TBU-LAB3
Unidirectional TBU Port Solution Design Kit
18 part numbers
115 total parts
Datasheet
In stock, but not recommended for new designs. TBU-DT is preferred.



Bourns Single Unidirectional


Series New! KE
Product Photo
TBU-KE
Datasheet
TBU-KE Datasheet Datasheet
Description
Single Unidirectional, for set top box LNB ports
Max Impulse Voltage
250V, 400V, 500V
Max RMS Voltage
100V, 200V, 250V
Trigger Current Levels
50mA, 100mA, 200mA, 300mA, 500mA
Trigger Time
1µs
Footprint (mm)
5x2.5
Design Kits
TBU-LAB3
Unidirectional TBU Port Solution Design Kit
18 part numbers
115 total parts

TBU-LAB3 datasheet Datasheet


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