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Component Data Sheets

query on a zener diode

Jonathan Ledezma

125

hace 5 años

Hello friends, I have an audio amplifier LSV AV 728 that burns 2 12V zener diodes, the specification on the diode only says "" 12v st "" I wanted to know if these 12v diodes have any other code and which are why on the internet I got the code 1N4742A among others, but I wanted to see which ones are right for what I need and if there is someone else I don't know and can search these are the ones that I got, if you know someone else I would appreciate them a lot since in Venezuela little spare parts are obtained 1N4742A 1n5242b nte 5021a sk12a zener diode 1n5349

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Alaen

2.336

hace 5 años



hace 5 años

I will put the one that most resembles the factory ... and the resistance would have to review why they overheated. The diode you say is a steren by its acronym 12vst ... ( https://www.steren.com.mx/diodo-zener-de-12-volts-1-watt-5-tolerancia.html ) the most successful is the 1n4742a .. 1n4742a - simple zener diode, 12 v, 1 w, 5%, 2 pins, 150 ° c 1n5242b - simple zener diode, 0.5w-12v, 175 ° cnte5021a diode-zener simple 12V 1 / 2W Sk12a Zener Diode 0.5w / 12v 1n5349 : Zener diode 12V 5W. Greetings I hope I have helped you ... ask any questions luck

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Miguel5650

hace 5 años

The original replacement would be the 1n4742a it is also important to know why it burned ?, sometimes
putting a "Superdiode" leads to worse catastrophe with the teams, Greetings. Miguel.-

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Jonathan Ledezma

125

hace 5 años

the problem that burned me was a mistake of mine when connecting the transformer wires to the source, I connected them wrong
Now there is a question about what you just told me Alaen, the diode I placed will rectify me voltage and wattage? I mean how many watts the diode indicates is what will come out to my circuit? because in front I have a resistance of 300ohm 3W that burned when the diodes went short and overheated when they were good, in which case which would be the most recommended?

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