4201-SMU and 4211-SMU source measure units are for Keithley 4200A-SCS parameter analyzer.

Can perform low-current measurements in presence of high load capacitance due to long cables and complex test setups. Are designed for test setups with long cables, switch matrices, gate contacts to the chuck, and other fixturing. Can source voltage and measure current with longer cables or more connection capacitance than using traditional SMUs. Can reportedly source into and measure a system that is 1,000 times more capacitive than what’s possible today. For example, if current level is between 1 to 100pA, modules can be stable with as much as 1µF of load capacitance.

Tektronix
tek.com

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