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Switching high current DC loads normally requires use of a contactor to avoid arcing as the contacts try to separate. DC pulls a long flame unlike AC which breaks every cycle.


These solid state relays use MOSFET technology to provide an economical and reliable method of switching medium to high power DC loads.


By electrical switching with a semiconductor, there is no arcing as contacts break at high current and the low on-state resistance provides a viable alternative to the bulky and expensive contactors we used to use.


These units are also isolate the control side from the switch side with a 2500VRMS LED light pathway.


You can parallel these units also for higher current switching. If you do, overdrive the input, to get the fastest switch time.

We suggest mounting on a heat sink or steel cabinet back wall for dissipating heat up to 35 watts at full load. We can supply tunnels or open fin heat sinks.

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Output Circuit

  • Load Voltage: 0-30VDC
  • Load Current: 0.02-100A
  • Max On-State Resistance: 0.007Ohms
  • Max On-State Voltage Drop: 0.35V
  • Max Turn On Time: 0.5ms
  • Max Turn Off Time: 0.5ms
  • Max Surge Current: 240A (10ms) – very handy for turn current spikes

Input Circuit

  • Control Voltage: 3-32VDC
  • Control Current: 28mA max.
  • Min Turn Off Voltage: 1.0VDC
  • Input Resistance: 1.2kOhm
  • Drive with pull down or sinking TTL or CMOS easily

MasTec designs and fabricates or builds a wide range of products:

Other Products on more MasTec Web pages

LabVIEW Books
LabVIEW Training
LabVIEW Training

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