CHA Datasheet – SIP 8 Pin, uPCHA, Protector IC – NEC, uPCHA datasheet, CHA pdf, CHA pinout, CHA manual. CHA Datasheet PDF Download – UPC, CHA data sheet. Work as either latching function or automatic resetting function by using pin 3. (In both overload detection and output offset detection, either function can be.

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Hello Ventsislav greetings please can you share schematic even if low voltage one warm regards andrew.

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Integrated Circuits Ic Price. Now I wanted to have a rather non standard approach here. Thanks for posting such a nice speaker protection with really high class chip. According to the datasheet pin 1 must be driven above 0.

This is the threshold. This will save space on the PCB, lower the cost of the project and increase the reliability. Skip to content Skip to primary sidebar Skip to footer.

Thanks for your help. Great article about a very usefull item which no one ever hopes to use. The devices protected by this module can be quite expensive so no cheap tricks here. Many brands use uPC A wide variety of new original cha options are available to you, such as drive ic, voltage regulator, and logic ics. Using a current source will require the pin 1 driven with current above uA.


Contact For Free Shipping. Your email address will not be published. I needed a module which could be mounted directly on the rear panel and bolted through the speaker terminals. The mounting holes are at 5. Rising the voltage above 0. The buyer is responsible for any tax or duty charged on their country. Upc Speaker Protection Board. Those can be drilled to a larger diameter if necessary. One important aspect is that this IC could be used to prevent the output devices from over current.

NTE – IC-Protector for Stereo

Hi Ventsislav, I am very interested in this particular design — it is one of the few that has considered mounting and using quality parts for higher powered amplifiers.

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The maximum allowed is 60VDC. Hello Ventsislav greetings very kind of you for replying i can provide the low power auxiliary 18 volt ac for a long time i have been searching for a short circuit protection schematic little help from you and i can make it from schematic i can design the pcb please schematic if you can share warm regards andrew.


Original Electronic Components cha. There is a solution around this however, if you can provide a low power auxiliary voltage of about 18VAC. Those can be quite bulky so the PCB is quite large. My speaker terminals have 5mm threads and fit just fine. CHA new original electronics component ic.

Datasheet «C1237HA»

Leave a Reply Cancel reply Your email address will not be published. There are 54 new original cha suppliers, mainly located in Asia. Upcha Integrated Circuit Ic. However those were using small current relays not suitable for more powerful amplifiers. A few words about the PCB. Any commercial usage is prohibited. The relay is located between the mounting pads to keep the paths equal and at the same length.

Do you know if this PCB is available dtasheet sale anywhere — or has been produced anywhere previously that I would be able to obtain further boards from? Hi, the circuit does work.