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4-in-1-Ladegerät-Entlader-Boost-Modul mit 5V 2.1A für 3.7V 4.2V Batterie DIY-Mobile Power mit Knopf
US$10.38 US$10.99

Q: I received 2x 150 Ohm SMD resistors packed with each board - what are they for?

gefragt von scytale auf 2018-05-31 09:19:03

cetoxim For dummy load. Board shuts itself on low mA consumption.

2021-10-29 10:00:39 Hilfreich (1)
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scytale 17/07/2020
Good quality standoffs, very happy with them.
Suleve™ M3AR17 10 Stück M3 15mm gerändelte Abstandshülse aus Aluminiumlegierung in mehreren Farben
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scytale 17/07/2020
Good quality standoffs, very happy with them.
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scytale 17/07/2020
Good quality standoffs, very happy with them.
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scytale 17/07/2020
Good quality standoffs, very happy with them.
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scytale 15/12/2019
Exactly as stated in the description, perfectly packed and shipped
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scytale 15/12/2019
Better than I expected. It uses automatically activates the gyro pointer mouse once the remote is used with its keyboard side down. Otherwise the touch pad is activated.
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scytale 15/12/2019
Good quality adhesive tape, worth the price.
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scytale 15/12/2019
Good quality adhesive tape, worth the price.
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scytale 06/08/2019
it totally does what it supposed to - my Hakko tips are all perfect again. Worth every penny.
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scytale 07/04/2019
Nice enclosures, perfect for temperature and humidity sensors. Good quality, too.
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scytale 06/09/2018
Poor quality even considering the price - the switch is falling apart, the cable is not fixed properly. Disappointed.
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scytale 31/08/2018
No complaints, the resistance is within specs, everything is perfect.
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scytale 22/07/2018
Mine were green - if it matters.. It's okay considering the price, but it will have troubles keeping output voltages stable at fast changing loads.. I tested it with output voltage set to 6.3V and currents changing between 0 and 1.3A (with 1.3A staying 70% of the time) at 9V and 12V inputs. Under these conditions it runs very hot (at both 9V and 12V inputs) and definitely needs a heat sink. But the troubling part is that the output voltage jumped significantly at changing loads - between 5.5V and almost 8V. I would rather recommend the RT8272-based model - also available here at Bangood at a slightly higher price - which is way more stable and seemingly more efficient as it doesn't run that hot under the same condition as above and will not need a heat sink..
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scytale 22/07/2018
This one is decent, I tested it at 6.3V output with currents jumping between 0 and 1.3A (with 1.3A staying 70% of the time) and input voltages 9V and 12V. It keeps the output well stable and the ripple is - mostly - within the promised 30mV, while it may jump up to 75mV at very low currents. Unlike the MP1584-based converters here - which will run very hot at the same conditions as above and will need a heat sink - this one (RT8272-based) runs well warm, but is still far from needing any cooling. I doubt it will hold 2A well at higher output voltages though. Still, it is a very decent step-down converter and its slightly higher price is well justified.
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scytale 23/06/2018
Works perfectly as Quick Charger and behaves the same way as my original HTC charger - it provides dynamic voltages up to 12V (at least with my phone) and currents up to 2A. very happy with the purchase.
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scytale 22/06/2018
Nice pads, good value, but the dims are 30 x 15 x 9 mm (LxWxH)
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scytale 02/06/2018
Perfect for the price
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scytale 01/06/2018
Surprisingly decent quality set, I am very happy with it. Shipped pretty fast to the US.
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scytale 31/05/2018
a clean build on a good quality PCB. it does exactly what the description says and delivers at least 800mA at the output - I didn't test it for higher currents yet. very happy with this one.
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