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  • Working voltage: 3.3 V to 5 V DC
  • The working current, try to choose more than 1 a power supply
  • The working temperature: - 10 °C to + 50 °C
  • Install the aperture: M3 screws
  • Type : Cable Accessories
  • Material: Nylon 6.6 and Polyethylene Foam
  • Color: White
  • Base Size: 20x20(mm)
  • USB adapter , Serial adapter
  • USB Type A (M), DB9 (M) connector(s)
  • Wired
  • 3.30ft
  • Complies with Windows 7, Windows Vista, RoHS, RS-232, USB, USB 2.0 Standards


PC817X Series contains an IRED optically coupled to a phototransistor. It is packaged in a 4pin DIP, available in wide-lead spacing option and SMT gullwing lead-form option. Input-output isolation voltage(rms) is 5.0kV. Collector-emitter voltage is 80V(*) and CTR is 50% to 600% at input current of 5mA.

1. 4pin DIP package
2. Double transfer mold package (Ideal for Flow Soldering)
3. High collector-emitter voltage (VCEO:80V(*))
4. Current transfer ratio (CTR : MIN. 50% at IF=5 mA,
5. Several CTR ranks available
6. High isolation voltage between input and output
(Viso(rms) : 5.0 kV)

Agency approvals/Compliance
1. Recognized by UL1577 (Double protection isolation),
file No. E64380 (as model No. PC817)
2. Package resin : UL flammability grade

1. I/O isolation for MCUs (Micro Controller Units)
2. Noise suppression in switching circuits
3. Signal transmission between circuits of different potentials and impedances




1~8 Cell Lithium Battery Level Indicator Module-User Configurable.
Lithium battery capacity level indicator for 1 to 8 cells, user configurable with jumper pad setting. Compact design with blue/green LED 4-segments display. Simple connection with 2-wires to lithium battery pack.


  • Number of Cell: 1~8S.
  • Number of cell Pre-Setting: 1-cell.
  • Battery Level Indicator Range: User configurable with jumper pad setting.
  • Indicator Type: 4 Bar-graph.
  • Display Color: Green/Blue.
  • Dimensions (mm): 45 x 20 x 8 (L x W x H).
  • Mounting Hole: M2 Screw.
  • Operating Temperature: -10℃~65℃.
  • Weight: 5g.
  • Low reverse leakage.
  • High forward surge capability.
  • High temperature soldering guaranteed:260℃
  • Lead and body according with RoHS standard.
  • Size: 6cm X 1cm
  • Type: Metal Film
  • Tolerance: ± 1%
  • Rated Power: 0.25 (1/4) W
  • Available Value: 0 and 0.5 Ohm
  • Brand: KEYES
  • Model: KY-003
  • Magnetic, speed, gap induction
  • Suitable for Arduino DIY project
  • Working voltage: DC 5V
  • Material: PCB
  • Type: Diffuse Reflective Type
  • Model: RZ-D41
  • Detection Distance (mm): 300
  • Spot Diameter: 2
  • LD Light Send Source: Laser
  • Model: MMHJ-60W
  • Input voltage: 220 ~ 240V AC 50/60Hz
  • Power: 25W
  • Cable Length: 1.5M
  • Soldering iron length: 188mm
  • Net Weight: 43g (not include the cable)
  • Output temperature: About 420 Degrees Celsius

This simple circuit contains three parts: Switch, Bulb and Battery.

When the battery is fixed, the bulb will light up.

Package Includes:
Circuit Stem C - Green Color

1x Knife Switch SPST
1x Battery Holder AA 2 Cell * 1.5V
1x Bulb holder
1x 15cm long wire black
1x 15cm long wire red
1x bulb



  • Material: Plastic
  • Application: Mobile Phone, Tablets, PC Repair
  • Colour: Blue/Black


Cable type: 2.54mm Dupont cable
Connector type:  Female to Female Connector
Pins options: 2-Pin/3-Pin/4-Pin/5-Pin/6-Pin
Length: 200mm/20cm



  • Material: steel,hardened by heat treatment, and then electroplated
  • Inner Diameter: 0.3cm
  • Overall Height: 1.2cm
  • Bottom Diameter: 2.2cm
  • Fixed Hole Distance: 1.6cm
  • Quantity: 1 Pc
  • Type: PURE copper single core
  • AWG: 22
  • Inner Diameter: 0.5mm
  • Outer Diameter : 1mm
  • Rated Voltage: 300V
  • Rated Temperature : 105 °C
  • Insulator : PVC
  • Color : Black, Red, Blue, Green, Yellow, White