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Your cart is empty.Bestol 10PCS TS555CN 555 DIP8 IC TIMER LOW POWER CMOS
Jetta driver
Reviewed in the United States on March 20, 2024
These devices have the part number of Cmos devices but are sub-standard ne555 timers. These are from a Chinese manufacturer that are flooding the market with inferior products. I reordered Cmos times from an American nationally known parts supplier and the devices performed per specification. The supplier that Amazon uses needs to be eliminated.
ofenmann
Reviewed in the United States on September 29, 2022
I wired up a breadboard circuit to run the timers in Astable mode. 9 out of 10 worked well at 20 kHz, good square wave on the scope while driving a Led. The one was 'dead', did nothing.
larN
Reviewed in the United States on June 16, 2022
they were priced good and arrived in time. I wanted them quickly and Amazon delivered in time no issues.As others mentioned you need to test them for defect. From what I received, 1 of them was bad (9 out of 10 were good).
MC
Reviewed in the United States on May 24, 2022
First chip was DOA. I checked and rechecked my circuit then I decided that it was not the circuit. After testing all ten of the chips today I found one 1 working. Wasted money. Return window closed.
Dwight R. Rhoads
Reviewed in the United States on July 30, 2020
I tested all 10 chips. The 1st unit did nothing, but the remaining units tested okay.The 555 timer backstory is very interesting, a legacy device introduced almost 50 years ago.
Mark O
Reviewed in the United States on January 2, 2020
I ordered 3 sets of 10 (30 total) of these 555 timer chips. In the first set, 8 were good, 2 were defective (80%).In the second set, 9 were good, 1 was defective (90%). In the third set, 5 were good, 5 were defective (50%). I didn't try to return any because I need the chips and time is of the essence. I strongly recommend you build a simple astable circuit and test each one before using it in your project (it will save you a lot of grief). One of the defective chips actually worked but drew way more current than specified. I tested all chips using 10 volts and limiting current to 10ma. I gave it 3 stars because the price was reasonable and shipping was quick.
Bob
Reviewed in the United States on January 16, 2020
Seem ok. Didn't test them yet.
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