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| Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#1
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Optocoupler
You could try a MOC 3021 which should be cheap enough.
-- Regards ............... Rheilly Phoull "Yianni" wrote in message news:1061238052.966770@athprx02... In my ultrasonic cleaning machine the optocoupler MB104i4c is burned. It drives directly a thyristor that controls a 500W/230V heater resistance. Does anyone know which equivalent to use? I couldn't find the above code anywhere. Thanks in advance. -- Yianni (remove number nine to reply) -- |
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#2
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Optocoupler
The MB104i4c uses 5 pins (2 for the led and other 3). The MOC 3021
uses only 4 of the 6 pins. I could add that the triac or thyristor is the KT207i400. I suspect is a thyristor because the gate is the middle pin (TO-220). Also the heater remains always on. Any help to determine these two parts. -- Yianni (remove number nine to reply) -- "Rheilly Phoull" wrote in message ... You could try a MOC 3021 which should be cheap enough. -- Regards ............... Rheilly Phoull "Yianni" wrote in message news:1061238052.966770@athprx02... In my ultrasonic cleaning machine the optocoupler MB104i4c is burned. It drives directly a thyristor that controls a 500W/230V heater resistance. Does anyone know which equivalent to use? I couldn't find the above code anywhere. Thanks in advance. -- Yianni (remove number nine to reply) -- |
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#3
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Optocoupler
Are there any Mfr Logos on the Parts to help know who makes them?
"Yianni" wrote in message news:1061339927.188165@athprx02... The MB104i4c uses 5 pins (2 for the led and other 3). The MOC 3021 uses only 4 of the 6 pins. I could add that the triac or thyristor is the KT207i400. I suspect is a thyristor because the gate is the middle pin (TO-220). Also the heater remains always on. Any help to determine these two parts. -- Yianni (remove number nine to reply) -- "Rheilly Phoull" wrote in message ... You could try a MOC 3021 which should be cheap enough. -- Regards ............... Rheilly Phoull "Yianni" wrote in message news:1061238052.966770@athprx02... In my ultrasonic cleaning machine the optocoupler MB104i4c is burned. It drives directly a thyristor that controls a 500W/230V heater resistance. Does anyone know which equivalent to use? I couldn't find the above code anywhere. Thanks in advance. -- Yianni (remove number nine to reply) -- |
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Linear Mode
