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4 In 1 Charger Discharger Boost 5V 2.1A Module for 3.7V 4.2V Battery DIY Mobile Power with Button
US$5.91 US$10.99

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

Asked by scytale on 2018-05-31 09:19:03

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

2021-10-29 10:00:39 Helpful (1)
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Answers (1)
scytale 17/07/2020
Good quality standoffs, very happy with them.
Suleve™ M3AR17 10Pcs M3 15mm Knurled Standoff Aluminum Alloy Multicolor
US$5.92 US$10.99
0
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scytale 17/07/2020
Good quality standoffs, very happy with them.
Suleve™ M3AR18 10Pcs M3 20mm Knurled Standoff Aluminum Alloy Multicolor
US$5.93 US$10.99
0
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scytale 17/07/2020
Good quality standoffs, very happy with them.
Suleve™ M3AS3 10Pcs M3 15mm Knurled Standoff Aluminum Alloy Anodized Spacer
US$5.53 US$11.99
0
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scytale 17/07/2020
Good quality standoffs, very happy with them.
Suleve™ M3AS2 10Pcs M3 10mm Knurled Standoff Aluminum Alloy Anodized Spacer
US$5.03 US$10.99
0
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scytale 15/12/2019
Exactly as stated in the description, perfectly packed and shipped
CJMCU 64 Bit WS2812 5050 RGB LED Driver Development Board
US$10.99 US$14.99
0
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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.
T6 2.4G Wireless Rechargeable Mini Keyboard Touchpad Air Mouse for TV Box PC
US$14.35 US$27.99
0
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scytale 15/12/2019
Good quality adhesive tape, worth the price.
Reusable Transparent Double Sided Tape Can Washed Acrylic Fixing Tape Nano Tape No Trace Magic Car Double-sided Tape
US$6.99 US$8.99
0
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scytale 15/12/2019
Good quality adhesive tape, worth the price.
1/2/3/5M Double Sided Tape Heavy Duty Adhesive Traceless Clear Washable Remove
US$4.16 US$10.99
0
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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.
MECHANIC MCN-20 Soldering Iron Tip Cleaner Resurrection Ointment Iron Head Repair Tool Cleaning Soldering Iron Head Repair Welding Head
US$7.25 US$13.99
0
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scytale 07/04/2019
Nice enclosures, perfect for temperature and humidity sensors. Good quality, too.
10pcs 75 x 54 x 27mm DIY Plastic Project Housing Electronic Junction Case Power Supply Box
US$11.99 US$20.99
0
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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.
AC 100-240V To DC 12V 2A Power Supply Adapter Switch For Light LED Strip
US$5.69 US$7.79
0
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Comments (1)
scytale 31/08/2018
No complaints, the resistance is within specs, everything is perfect.
50W 0.5R 1R 2R 2.2R 4R 6R 8R 10R 20R Ohm Aluminum Shell Power Case Wirewound Resistor
US$4.35 US$7.99
0
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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..
20Pcs Geekcreit® Mini DC-DC Converter Adjustable Power Supply Step Down Module
US$13.83 US$26.99
0
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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.
2Pcs DC-DC Adjustable Power Supply Buck Converter Step Down Module
US$5.99 US$9.99
1
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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.
[Qualcomm Certified BlitzWolf® BW-S5 QC3.0 18W USB Charger EU Adapter With Power3S Tech
US$13.99 US$17.99
0
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scytale 22/06/2018
Nice pads, good value, but the dims are 30 x 15 x 9 mm (LxWxH)
Realacc 50PCS Landing Skid Gear Frame Anti-vibration M3 Sponge for ZMR250 QAV250 210 RC Drone FPV Racing
US$6.99 US$8.99
0
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scytale 02/06/2018
Perfect for the price
5pcs DIY Battery Box Holder Case For 18650 Rechargeable Battery
US$4.99 US$6.99
0
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scytale 01/06/2018
Surprisingly decent quality set, I am very happy with it. Shipped pretty fast to the US.
Pros'kit SD-9857M Multifunction 57 In 1 Computer Precision Screwdrivers Set Repair Tool Set
US$22.68 US$19.99
2
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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.
4 In 1 Charger Discharger Boost 5V 2.1A Module for 3.7V 4.2V Battery DIY Mobile Power with Button
US$5.91 US$10.99
1
Recommendations
Comments (0)

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