Passive oscilloscope probes ideal for dense PCBs with wide temperature range

10-08-2020 | Yokogawa | Test & Measurement

The new Yokogawa Model 701949 and 702907 passive oscilloscope probes are intended to expand the usability and applications of the company's DLM3000 Mixed Signal Oscilloscope.


The 701949 10:1 miniature passive probe is designed for high-density PCBs, with a slim probe head that gives good visibility through operation. It also provides a built-in spring mechanism at the tip that stops slippage by automatically adjusting the load.


An extensive range of accessories is available, ideal for high-speed signals including ICs and high-density mounting boards for multiple applications. The device's frequency bandwidth ranges are DC to 500MHz, with an input voltage of +/-400VRMS.


The 702907 provides a wide operating temperature range of -40C to +85C, it also provides a long probe length of 2.5m, making it simple to keep the measuring instrument away from the high-temperature measurement point. Longer probes are also needed to connect the measuring instrument to a temperature-controlled chamber.


Frequency bandwidth ranges are DC to 200MHz, with an input voltage of +/-1000VDC + AC peak.


To ensure reliability under harsh environmental conditions, these probes have been demonstrated to resist a cable mount pulling force of 60N and have been tested over 500 temperature cycles.


Typical applications comprise accelerated testing and validation of automotive parts, testing designs within a temperature chamber and the environmental testing of power converters intended for outside installations including inverters and transformers employed for solar photovoltaic and wind-turbine power generation.


Other uses incorporate the evaluation and environmental testing of sensors and actuators employed in automotive, railway, aerospace and marine applications, and in testing home appliances such as air-conditioners, cookers and refrigerators.

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