Tektronix 2600B-PM-1 User manual

Model 2600B-PM-1

Keithley Instruments

28775 Aurora Road
Cleveland, Ohio 44139
1-800-935-5595

http://www.keithley.com

200 V Protection Module with 1 A Clamp

Description

The Model 2600B-PM-1 200 V Protection Module with 1 A Clamp is a stand-alone module that protects certain
lower-voltage source-measure units (SMUs) that are part of a testing configuration from damage by voltage
sources that are greater than 220 V.

The maximum DC current is 100 mA, and the clamp prevents < 100 µs transient current spikes up to 1 A.

Figure 1: Model 2600B-PM-1 protection module

The protection module is designed for use with the following lower-voltage SMUs:

• Model 2635B Single-Channel System SourceMeter Instrument

• Model 2636B Dual-Channel System SourceMeter Instrument

The protection module prevents damage due to transient overcurrent conditions. It is intended for use in
applications where a device breakdown or other potential failure could connect the high voltage output of the
1000 V power supply or SMU instrument, such as the Keithley Instruments Model 2410 or 237.

071322002 / June 2015 *PPA071322002* 1

Model 2600B-PM-1

To prevent damage to the Model 2600B-PM-1, in the case of device failure, the current from all power
sources, including SourceMeter instruments and power supplies, should be limited to 100 mA DC or
less.

The Model 2600B-PM-1 protection module must be connected to protective earth (safety
ground) using the supplied green and yellow ground cables (Model CA-568). Connection of the
ground cable to protective earth is necessary for safety.

Figure 2: Model 2290-PM-200 grounding

The standard triaxial IN connectors are used to connect the SMU. Maximum clamped voltage on the IN
connectors is 240 VDC.

• The center conductor of the LO connector inner shield is connected to LO. The outer shield (shell) is chassis
ground.

• The center conductor of the HI connector is HI and the inner shield is guard. The outer shield (shell) is chassis
ground.

There are two high-voltage coaxial connectors used for connection to the device under test (DUT).

• The OUT connector is intended for use in applications involving a 1000 V power supply or SMU instrument,
such as the Keithley Instruments Model 2410 or 237.

2 071322002 / June 2015