Features

n

Fastacting

n

Balanced

n

Stablebreakdownthroughoutlife

n

n

RoHScompliant*versionsavailable

Applications

n

Telecommunications

n

Industrialelectronics

n

Avionics

Characteristics

“TBU”isaregisteredtrademarkofBourns,Inc.intheUnitedStatesandothercountries.

*RoHSDirective2002/95/ECJan.27,2003includingannexandRoHSRecast2011/65/EUJune8,2011.

Specificationsaresubjecttochangewithoutnotice.

Thedevicecharacteristicsandparametersinthisdatasheetcananddovaryindifferentapplicationsandactualdeviceperformancemayvaryovertime.

Usersshouldverifyactualdeviceperformanceintheirspecificapplications.

Characteristic

Model No.

2020-15T

2020-23T

2020-42T

Minimum DC Sparkover (100 V/s)

Throughout Service Life

60 V

180 V

360 V

Throughout Service Life

500 V

650 V

850 V

Impulse Transverse Delay..................1000 V/µs ............................................................................... < 75 ns

Glow Voltage ......................................10 mA..................................................................................... ~ 70 V

Arc Voltage .........................................>1 A........................................................................................ ~ 10 V

Glow-Arc Transition Current ............................................................................................................... < 0.5 A

Capacitance........................................1 MHz..................................................................................... < 2 pF

DC Holdover Voltage (Network Applied per ITU-T K.12)

2020-15T .......................................52 V........................................................................................ < 150 ms

2020-23T .......................................80 V........................................................................................ < 150 ms

2020-42T .......................................135 V...................................................................................... < 150 ms

600 V, 10 Arms, 0.2 sec.......................................................... 10 operations

Operating Temperature Range........................................................................................................... -40 °C to +90 °C

Storage Temperature Range .............................................................................................................. -55 °C to +90 °C

Notes:

(2)

The rated discharge current is the total current equally divided between each line to ground.

(3)

Surge polarity should be reversed between consecutive surges (+,-,+,-)

(4)

Applies only to GDT with optional Fail-Short. GDT operates and will survive with Fail-Short activation.

• At delivery AQL 0.65 Level II, DIN ISO 2859.

• Models with the optional Fail-Short assembly activate at low temperature (215 °C – 217 °C) when required. These models are designed to

be soldered either manually or using a selective soldering process that does not exceed 210 °C, below the temperature that the Fail-Short

assembly would activate.

Port Protection

GDT Device P/N

TBU® Device P/N

CanBus

2020-23T

TBU-CA065-100-WH

RS232

2020-23T

TBU-CA065-200-WH

RS422

2020-23T

TBU-CA065-200-WH

RS485

2020-23T

TBU-CA065-200-WH

RS485

2020-42T

TBU-CA085-200-WH

SDI

2020-23T

TBU-CA065-100-WH

VDSL

2020-15T

TBU-CA050-500-WH

Applications

Test Methods per ITU-T K.12, IEEE C62.31 and IEC 61643-311 GDT standards.

(1)

Impulse Sparkover voltage is defined as typical values of distribution.