HISTORY:
Sustainability is the name of the game! Anything (that has been tested and still functioning properly) should be repurposed creating saving in wasted Ee and reducing the poisoning our environment when items are buried in the earth at the local tip needlessly.
Never heard of Ee? It is a concept that creates a measurement of ALL things (not just electronics) that humans have made and the energy used in obtaining the raw material, processing the materials right through to a finished product and even should include the shipping of the item to the distributors/retailers.
If you would like to know more about Ee values, please take a look HERE
This component is from the MATSUNAGA (Yokohama Japan) Frequency Converter, intended for laboratory use and providing up to 240V AC at a user adjustable variable frequency. Not only that, the AC voltage output could be varied across a wide range AND the user could set current limiting, so it could alter all three aspects of the AC output wavefrom, frequency, voltage and current limiting. I actually fired this gear up and it was working great but oh dear! What to do with it? Sure you could put up on the workbench but at that sort of weight it needed a lot of space and a good solid workbench. I decided a while back to offer this equipment as a complete unit "elsewhere" online for a while but there was no interest at all so I pondered over what to do with this equipment (to keep or not to keep) but it had a few things going against it.
As a complete unit it was EXTREMELY HEAVY, over 50Kg, which means that my arms are now 30cm longer from lugging this beast around the workshops! ... but more seriously, shipping would have been difficult to ensure safe travel AND very expensive. It also had other minor cosmetic issues because it is not easy moving such a monster around so it suffered scrap marks on various places of the all steel casing.
Here is another component that can be put to good use once again ... a high current/high voltage thyristor
NIHON INTER Electronics Corporation (Japan) was founded in 1957, the first Japanese semiconductor rectifier manufacturer to enter international markets. Now a worldwide manufacturer of semiconductors used in the power electronics industry, such as plastic package diodes, MOSFET, Schottky Barrier Diodes (SBD), Fast Recovery Diodes (FRED), Diode Modules, MOSFET Modules, IGBT Modules, Thyristor Modules and SBD/ FRED Modules.
NIHON INTER (NI) Japan - High Power Thyristor
Vdrm 80V
It (rms) 30A
Temperature range -40 ~ +124C
Large epoxy packaging with screw terminals topside and 4x solder tags for the gates
DIMENSIONS:
92mm wide x 26mm depth x 38mm height (including the terminals)
WEIGHT: 200g
Datasheets are readily available online
COSMETIC CONDITION:
USED
CLEAN
NO damage in any way
SPECIAL NOTE: Notice the metal strap across terminals 2 & 3? I forgot to remove this strap when taking the photograph - this strap has NOW been removed but will be supplied in case the new owner needs to use it.
TESTING:
Working fine while installed in the equipment, once removed I made a basic thyristor ON-OFF test and all is fine, no problems.
Now sealed in a clear plastic packet, waiting for a new purpose in life!
