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DC Voltage Current Source/Monitor
6247C / 6247G

SMU capable of testing high-voltage devices
Output voltage up to +250 V and output current up to ±320 mA

The 6247C/6247G is a DC voltage current source/monitor designed for evaluating high voltage semiconductors and LED luminaires that demand high efficiency and low power consumption, capable of outputting voltage up to +250 V and current up to ±320 mA. It provides high accuracy of ±0.025 % with 4½-digit source resolution and 5½-digit measurement resolution.
The 6247C/6247G features the well-established VSIM, ISVM, sweep and pulse generation functions. Also, leak current measurement up to 10 pA is possible. In addition, it is equipped with the various types of sweep functions such as linear, fixed, random and two slope linear sweep functions, the pulse measurement function with the minimum pulse width of 50 μs, the micro voltage and current measurement function with the minimum resolution of 10 μV or 10 pA, and the suspend function that controls the optimized output status. By using these functions, the 6247C/6247G can be widely used for evaluating or testing semiconductor and other electronic components in R&D fields and production lines.


Source and measurement functions
Voltage source, current source, voltage measurement, current measurement and resistance measurement are available by specifying the source and measurement functions.

Voltage and current source mode
There are four source modes; DC, pulse, DC sweep, pulse sweep. Then, the sweep modes are classified into four sweep types: fixed sweep, linear sweep, random sweep (any type of waveform generation by user's programming), two slope linear sweep (linear sweep with step value switching). The minimum pulse width is 50 µs. The minimum cycle is 2 ms, or 500 µs without measurement.

HI/LO limiters separate setting
In voltage or current source, the HI/LO limiter settings are very important. The 6247C/6247G has a function that can set the HI and LO limiters individually. Furthermore, for the voltage-limiter, both HI and LO limiters can be set homo-polar. This prevents a capacitor or a battery from being over-discharged. Also, it is suitable for evaluating devices such as LDs that are used at a constant current and do not tolerate reverse voltage application.

Suspend function
The 6247C/6247G can select from three output OFF statuses; STBY (output relay OFF), HiZ (output relay ON and high resistance), and LoZ (output relay ON and low resistance). Using this function can omit unnecessary relay ON/OFF operations, which extends the relay lifetime and improves the system throughout.
In addition, the setting of a suspend voltage (voltage in HiZ and LoZ status) can prevent transient current from being generated when connecting voltage sourcing devices such as batteries. 


Sample hold measurement
Sample hold measurement is available in the pulse mode and the pulse sweep mode. Measurement holds an input signal immediately before pulse falling edge, and A/D conversion is implemented for integration time of 100 µs. This function enables precise values to be measured without setting the measurement delay time.

  6247C 6247G
Number of digits for generation 
Output method Bipolar

Maximum output (top)

Minimum resolution (bottom)


+250 V, -15 V/320 mA 

100 μV


 ±320 mA/+250 V, -15 V
 100 pA

Number of digits for measurement

Accuracy (typical range) 0.02 % 
Minimum measurement resolution Voltage  10 μV
Current 10 pA 
Maximum measurement resistnace
/ Minimum resolution
125 GΩ/30 μΩ
Pulse application / Measurement Available
Minimum pulse width 50 μs
Interface USB, RS232 USB, GPIB 

*For the detailed specifications, please download the brochure from "Documents."