Prototyping & tools – Ktechnics Systems https://ktechnics.com Ktechnics Systems Tue, 02 Jun 2026 11:55:45 +0000 en-US hourly 1 https://wordpress.org/?v=7.0 5A XL4005 DC-DC Adjustable Ste… https://ktechnics.com/product/5a-xl4005-dc-dc-adjustable-step-down-module-power-supply-converter/ Thu, 19 Mar 2026 14:44:35 +0000 https://ktechnics.com/?post_type=product&p=60558 This is a XL4005 DC-DC 5A Adjustable Step Down Buck Power Supply Module. This module features the adjustable XL4005 step-down (buck) switching regulator, capable of driving a 5A load with excellent line and load regulation.

 

This XL4005 DC-DC 5A Adjustable Step Down Buck Power Supply Module has a multi-turn trim pot (potentiometer) that you can use to adjust the output voltage. Since the trim pot has 25 turns of adjustment you can easily adjust the output of the module to exactly the voltage you need.

 

The simplest way to reduce the voltage of a DC supply voltage is to use a linear voltage regulator (LDO), but linear regulators step down voltage by dissipating the excess energy as heat and do not yield any current step up. Buck converters, on the other hand, can be remarkably efficient and provide a step up in current output. Buck converters are one of the best ways to provide a regulated voltage from a battery since they don’t waste near as much energy in the process of dropping the input voltage as a linear regulator would waste.

 

Features:

  1. Wide 5V to 32V Input Voltage Range
  2. Output Adjustable from 0.8V to 30V
  3. Maximum Duty Cycle 100%
  4. Minimum Drop Out 0.6V
  5. Fixed 300KHz Switching Frequency
  6. 5A Constant Output Current Capability
  7. Internal Optimize Power MOSFET
  8. High efficiency
]]> 9x15cm Single-sided Prototypin… https://ktechnics.com/product/9x15cm-single-sided-prototyping-pcb-board/ Wed, 18 Mar 2026 10:18:51 +0000 https://ktechnics.com/?post_type=product&p=60494 Bakelite Material:This board uses Bakelite as its base material. Bakelite is a rigid insulating material suitable for electronic circuits.

Experimental Circuit Board:The board is designed for experimental circuit projects. It supports soldering and testing of electronic components.

Single-Sided Copper Plate:The board features a single-sided copper plate. This means copper traces are on one side only for circuit connections.

Prototype PCB Board Size:The board measures 9 × 15 cm (3.54 × 5.91 in). It provides a standard size for prototype circuit assembly.

]]> 9x15cm Double-sided Prototypin… https://ktechnics.com/product/9x15cm-double-sided-prototyping-pcb-board/ Wed, 18 Mar 2026 10:13:32 +0000 https://ktechnics.com/?post_type=product&p=60491 Dimension : 9×15 cm / 2.7×3.5 inch (W x L)
Hole ( row x column ) : 31 x 26
Material : glass fiber FR4
Metal : Tin-plate
Thickness : approx. 1.6mm
Hole Pitch : approx. 2.54 mm
Hole Diameter : approx. 1 mm

]]> Automatic irrigation module DI… https://ktechnics.com/product/automatic-irrigation-module-diy-kit-soil-moisture-detection-automatic-water-pumping/ Thu, 06 Nov 2025 10:44:15 +0000 https://ktechnics.com/?post_type=product&p=57630 Automatic plant watering system. The system does not require a microcontroller. All we need are 4 AA batteries. The system can also be powered with USB. Controlling the watering frequency is regulated by the humidity module using the potentiometer (blue) NOTE: The pump is submersible, so it is important that it works in water, e.g. in a glass.

The set consists of:

1 x relay module
1 x humidity sensor with a regulator
1 x water pump
1 x holder for 4 AA batteries
1 x USB cable
1 x silicone tubing
10 x connection cables

How to assemble the kit? Here is a handy tutorial clip:

]]> Hot Melt Glue gun 20W 100-240V… https://ktechnics.com/product/hot-melt-glue-gun-20w-100-240v-ac/ Tue, 21 Oct 2025 12:45:11 +0000 https://ktechnics.com/?post_type=product&p=57294 Specifications:
Material: Metal+ABS
Color: Blue
Plug Type: EU
Input Voltage: 100-240V, 50/60Hz
Power: 20W
Heating Time: 5-10 minutes
Applicable Rubber Bar: About 7mm
Diameter of Muzzle: 1.8mm / 0.07in
Length of Nozzle: 2.5cm / 0.98in
Length of Power Line: 1m / 39.37in
Item Size: Approx. 13*11*2.5cm / 5.12*4.33*0.98in
Item Weight: Approx. 110g / 3.88oz
Package Size: Approx. 20.5*15*4cm / 8.07*5.91*1.57in
Package Weight: Approx. 134g / 4.73oz

Note:
1. When the new glue gun is used for the first time, little smoke may appear, which is a normal phenomenon. After 30 minutes of use, the smoke will disappear automatically.
2. The glue gun shall not be raised and the nozzle shall not be upward during operation. If the glue gun is not applied for 15 minutes, please cut off the power supply to avoid damages caused by glue overflow.
3. In the process of use, do not take out the leftover glue stick. It can be used after next heating.
4. Please allow 1-2cm differences due to manual measurement, thanks.

Package List:
1 * hot Melt Glue Machine

]]> Soldering Iron Tip Cleaner wit… https://ktechnics.com/product/soldering-iron-tip-cleaner-with-brass-wire-cleaning-sponge-metal-base-holder/ Mon, 25 Aug 2025 11:20:34 +0000 https://ktechnics.com/?post_type=product&p=56078 Soldering is an easy and effective way of connecting components with soft, meltable metals, but can get messy sometimes thanks to the way solder melts and hardens so quickly. This is what makes a Solder Iron Tip Cleaner like this such a great investment for Makers and electronics enthusiasts who love soldering. When compared to old sponge and water cleaning techniques, these tools are much easier to use and are cleaner, since the thin ribbon-like strips of metal within the container essentially scrape off the melted solder without damaging the soldering iron tip.

Whereas a sponge may get saturated with melted metal and eventually scratch the soldering iron tip, and water cleaning techniques force a substantial temperature difference on the tip, these strips gently scrape and catch the melted metal bits. This prolongs the life of soldering tips, while keeping your solder station clean and tidy and helping to maintain high soldering tip temperatures.

Metal Wire Soldering Iron Tip Cleaner Mesh
ULTIUM Soldering Iron Tip Cleaner with Brass Wire Cleaning Sponge & Metal Base Holder,-2
ULTIUM Soldering Iron Tip Cleaner with Brass Wire Cleaning Sponge & Metal Base Holder,-3
ULTIUM Soldering Iron Tip Cleaner with Brass Wire Cleaning Sponge & Metal Base Holder,-4
]]> UNI-T UT33D+ Digital Multimete… https://ktechnics.com/product/uni-t-ut33d-digital-multimeter-2/ Fri, 24 Jan 2025 09:02:40 +0000 https://ktechnics.com/?post_type=product&p=51087

UNI-T UT33D+ Mini Digital Multimeter 600V NCV Palm Size Manual Range AC DC Voltmeter Ammeter Resistance Tester

Add product into cart and place order can get gifts-2pcs ceramic fuse and 1pc screwdriver

The new generation UT33+ series redefines the performance standards for introductory digital multimeters. Our innovative industrial design makes sure that these products can withstand 2 meters drop. The new LCD display layout provides a better user experience. The UT33+ series safety standards have also been enhanced to ensure that users can work safely in CAT ll 600V environment.

Specifications

]]> UNI-T UT33B+ Digital Multimete… https://ktechnics.com/product/uni-t-ut33b-digital-multimeter/ Fri, 24 Jan 2025 08:53:00 +0000 https://ktechnics.com/?post_type=product&p=51081 UNI-T UT33B+ Palm Size Digital Multimeter DMM

UNI-T UT33 series is kind of palm size handheld pocketable digital multimeter.
It measures DC/AC Voltage, DC Current and Resistance with accuracy. It has an unique Data Hold function, not available in other palm size meters. Great value! Low cost and convenient for everyday test.

Features:

  • Professional fully featured palm-size digital multimeter
  • It measures AC/DC voltage, resistance, diode check, temperature and etc.
  • Display: maximum reading 1,999
  • DC voltage: 200mV/2000mV/20V/200V/500V (+/-0.5%+2)
  • AC voltage: 200V/500V (+/-1.2%+10)
  • DC current: 2000uA/20mA/200mA/10A (+/-1.0%+2)
  • Resistance: 200ohm/2000ohm/20Kohm/200Kohm/20Mohm (+/-0.8%+2)
  • Temperature: -40’C ~ 1000’C (+/-1.0%+3) / -40’F ~ 1832’F (+/-1.0%+4)
  • Input impedance for voltage test: 10Mohm
  • Other functions: Diode testing, continuity buzzer, low power indicating, data hold, backlight

Special Functions:

  • Low Battery Indicator: Yes
  • Diode Test: Yes
  • Continuity Buzzer: Yes
  • Operation Method: Auto Range
  • Powered by: 2 x AAA Battery
]]> 72*42*24mm black electronic en… https://ktechnics.com/product/724224mm-black-electronic-enclosure/ Tue, 26 Nov 2024 12:06:20 +0000 https://ktechnics.com/?post_type=product&p=49931 small plastic box instrument enclosure control box electronics housing case

Specifications:

Model number: AK-S-98

Size: 72 (L)* 42 (W)* 24 (H) mm

Material:  High impact abs plastic

Certificate:Products are complying with ROHS and CE

Protection level:

Good mechanical property; Fire protecting performance and Anti-corrosion performance. Protect your instruments even under the adverse environment.

]]> Helping Hand Third Hand Tool S… https://ktechnics.com/product/helping-hand-third-hand-tool-soldering-iron-stand-with-magnifying-glass-and-led-light/ Mon, 23 Sep 2024 08:17:03 +0000 https://ktechnics.com/?post_type=product&p=48200

Helping Hand Third Hand Tool Soldering Iron Stand with Magnifying Glass and LED Light

This helping hand tool is a must have item for any one involved in electronics circuit prototyping and repairing. With all the circuits now having tiny surface mount components this kind of tools proves to be very useful with its LED illuminated magnifier which can magnify at 3.5x optical zoom and also a patch of 12x optical zoom. Comes with a sturdy soldering iron stand. Most important feature of this item is it’s flexible metal neck which allows you to adjust the magnifier to any direction.

Have one of these low cost third hand tool in your lab and feel like a pro!

 

Features:

  • The support clamps and alligator clips are adjustable.
  • Ideal tool when third hand is required.
  • The base surface is padded with steel sheet to increase base weight and reinforce stability.
  • Powered by external power adapter of 3 * AA batteries (not included).
  • With two LED lighting, this model can work very well in the dark environment .
  • With three pcs of AAA batteries (not included), large capacity, this model can continuously discharge more than 10 hours, expediently be used

Application range:

Electronic welding, modeling, stamp collecting, embroidery, antiques, biological observation, reading, etc.

Specifications:

  • Condition: New
  • Material of lens: Glass
  • Base size: 3.93 x 2.56 x 0.79inch/10 x 6.5 x 2cm (L x W x H)
  • Lens Diameter: 2.56 inch/65mm,0.67nch/17mm
  • Weld holder size: 1.18 x 3.54inch/3 x 9cm (D x H)
  • Package Size: 5.83x 6.42x 4.06inch/14.8 x 16.3 x 10.3cm (L x W x H)
  • Weight: 406g/14.32oz
  • Color: Black

 

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