Resistor 20K Ohm 5% 0,25W 1/4W

Rocker Switch 3A 250V On/Off SPST features:
- AC 250V 3A 2 Pin ON/OFF I/O SPST Snap in mini oscillating switch
- Rocker switch; Type: On/Off (SPST)
- Control on and off SPST and 2 terminals
- Voltage and Current: AC250V, 3A
- Overall size: ~ 1.5 x 1 x 1.7 cm/0.6"x 0.4" x 0.7 "(L*W*H)
- Mounting hole size: 1.35 x 0.8 cm/0.53"x 0.315" (L*W)
- Black

The PTC polymer fuse is a reusable element protecting the circuit against overload and short circuit. Resettable fuse PTC 650mA 90V DC features:
Operation current: 650mA Maximum Voltage: 90V  Temperature range: -40 „ƒ to 85 „ƒ Cured, flame retardant epoxy polymer insulating material meets UL 94V-0 requirement 40A shock current
Trip current 1.3A
880mW power
Min resistance 310mΩ Max. 720mΩ
Dimensions A.97mm
B 14.5mm
C  5.1mm
D 7.6mm
E 3.1mm
F 1.1mm
Terminal dimensions Ø0.51x7.6mm        datasheet Resettable fuse  

LED Diode Assortment Kit 15 pcs 5mm red, green, yellow features:
- Lens color: red, green, yellow - diffuse
- Size: 5mm
- Operating current: 20mA
- Voltage (red) 1,8V-2,3V
- Voltage (green) 3,2V-3,4V
- Voltage (yellow) 1,8V-2,3V
- Anode (A): Positive (long leg): 28mm
- Catode (K): Negative (short leg): 25mm
- Operating temperature: -25ºC/80ºC
- Welding temperature: +260ºC
- Quantity: 30 units
*5x red
*5x green
*5x yellow

A high-performance regulator-booster.
24V battery charger - DC / CV method.
Power supply of the laptop from a 12V car battery.
A high-performance dimmer-regulator.
Charger for Li-Ion, Li-Po batteries etc. - CC / CV method.
LED Constant current driver for LED diodes.
Characteristic:
- Input voltage: 6V -40V
- Output voltage: 1.25-35V (adjustable)
- Output current: 8A, (10A maximum)
- Output power: 300W maximum
- Efficiency of Conversion: up to 95%
- Wiring: Solderless terminal
- Operating frequency: 300kHz
- Ambient temperature exceeds 40 ° C, increase heat dissipation
- LED indicator two-color;
- Charge red
- Fully charged light green
- No charge green

Flux Colophony Rosin Core 40g features:
Flux rosin, solid resin, neutral ph for a correct electronic welding.
- They do not cause corrosion of non-ferrous metals
- Does not cause short circuits
It melts with the temperature, spreading through the area to be welded and penetrating into the most difficult corners, cleans and prepares the surfaces and components to be welded, and facilitates the adhesion and fluidity of the tin, improving welding in electronics works.
Use a toothpick for the application. Do not apply in excess.
Security:
- Use in ventilated spaces. Do not inhale vapors that are released when welding
- Keep the pot tightly closed and out of the reach of children
- Do not eat. It is not toxic
- Rarely irritating to skin contact

Characteristic:
-Metric thread M3
-Male-Female separator 25mm
-Quantity: 5 units

The piezoelectric buzzer has a simple structure in which a ceramic piezoelectric disk is affixed to a vibrating plate. An alternative voltage applied to this element will cause a contraction or diametrical expansion of the element. This feature is used to fold a vibrating plate, which generates sounds. 2x Passive Buzzer 5V features:

- Input voltage: 3V to 12V
- Diameter: 12mm
- Height: 7.5mm
- Pin spacing: 6.5mm
- Impedance: 16 Ohm
- Working frequency: 2 to 5 KHz
- Quantity: 1 unit

The optical module sensor (reflective) with comparator LM393, which detects obstacles with high precision.
The ideal obstacle detection detector for the installation of smart robots.
TCRT5000 - reflective optical sensor that has a compact construction where the light emitter and receiver are placed in the same direction to detect the presence of a object using infrared reflection on the object.
The working wavelength is 950nm.
The transmitter is infrared LED and the phototransistor receiver.
By using LM393 comparator the module has a binary output (D0) that is at level 1 (object is detected).
The sensor allows the detection of an object at a distance of up to 12 mm.