Tektronix 7078-TRX-BNC User manual

Keithley Instruments

Model 7078-TRX-BNC (CS-633)

500 V

center conductor to inner shield

30 V

inner shield to outer shell

1 A

0 °C to 50 °C, up to 35 °C at 70% relative humidity

<0.5 Ω

1015 Ω, center conductor to inner shield (500 V test
voltage,23 °C at <4% relative humidity)

Brass with nontarnish finish and Teflon® insulation

28775 Aurora Road
Cleveland, Ohio 44139
1-800-833-9200

tek.com/keithley

3-Slot Triaxial to BNC Adapter Information

Description

The Model 7078-TRX-BNC (CS-633) is a three-slot triaxial to socket BNC adapter. It can be used to connect
BNC cables to equipment with three-lug triaxial socket connectors.

Figure 1: 7078-TRX-BNC (CS-633) 3-Slot Triaxial to BNC adapter

To maintain maximum insulation resistance, keep the connectors free of contaminants (such as dirt
or oil). If the connections become contaminated, clean them thoroughly with methanol. Allow them to
dry completely before use.

Characteristics

Working voltage

Maximum working current
Operating environment
Storage environment
Contact resistance
Insulation resistance

Material

PEAK

PEAK

PEAK

–25 °C to 65 °C

PA-153 Rev. E September 2022

*PPA-153E*

1

Model 7078-TRX-BNC (CS-633) 3-Slot Triaxial to BNC Adapter Information

igure 2: 7078-TRX-BNC (CS-633) adapter dimensions

F

To prevent electric shock, do not float inner shield more than 30 V above earth ground.
Failure to do so may result in equipment damage, personal injury, or even death due to
electric shock.

The case of the adapter is connected to the inner shiel d o f the triaxial connector. When used
w

ith an electrometer or other instrument, input LO or guard voltage will be present on the

case of the adapter and any attached BNC connectors.

Figure 3: Model 7078-TRX-BNC (CS-633) electrical schematic

2 PA-153 Rev. E September 2022