Photoelectric Sensor

Different electronic devices have different types of PCBs. For example, simple devices usually have PCBs that are made up of one layer; however, complex devices such as computer graphic cards and motherboards have PCBs that are up to 12 layers. Although, PCBs are green in color, they can come in almost any color.

There are many advantages that come with PCBs. One of the main advantages is that they are very neat and great to look at. Before, the components in an electronic device were connected using large wires that were randomly placed where they could fit. This is no longer the case as the wires are now professionally connected in a neat way.

A PCB has many parts. When you look at it you will be able to see thin lines that connect all the components in the circuit. These thin lines are the ones that replaced the much larger wires that were used in the past.

Photoelectric Photocell Dusk To Dawn Button Flush Mount Photo Control Eye Switch
Photoelectric Photocell Dusk To Dawn Button Flush Mount Photo Control Eye Switch
6.49
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Photoelectric Photocell Dusk To Dawn Button Flush Mount Photo Control Eye Switch
Photoelectric Photocell Dusk To Dawn Button Flush Mount Photo Control Eye Switch
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Photoelectric Photocell Dusk To Dawn Button Flush Mount Photo Control Eye Switch
Photoelectric Photocell Dusk To Dawn Button Flush Mount Photo Control Eye Switch
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Us M12 Npn No Laser Sensorphotoelectric Switch Correlation Infrared Radio
Us M12 Npn No Laser Sensorphotoelectric Switch Correlation Infrared Radio
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18mm Photoelectric Sensor
18mm Photoelectric Sensor
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E3z-d81 Photoelectric Sensor Switch Diffuse-reflective Pre-wired Pnp 5-100mm Us
E3z-d81 Photoelectric Sensor Switch Diffuse-reflective Pre-wired Pnp 5-100mm Us
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2pcs Npn No E3f-ds30c4 Photoelectric Switch Infrared Switch Adjustable Sensor Us
2pcs Npn No E3f-ds30c4 Photoelectric Switch Infrared Switch Adjustable Sensor Us
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Us M18 Npn No Laser Sensorphotoelectric Switch Correlation Infrared Radio
Us M18 Npn No Laser Sensorphotoelectric Switch Correlation Infrared Radio
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Reflex Photoelectric Switch Optical Sensor Npn No Distance 2m Dc10-30v Hot
Reflex Photoelectric Switch Optical Sensor Npn No Distance 2m Dc10-30v Hot
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Photoelectric Sensor Reflector
Photoelectric Sensor Reflector
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Photoelectric Photocell Photo Sensor Control Automatic Switch Button Flush Mount
Photoelectric Photocell Photo Sensor Control Automatic Switch Button Flush Mount
6.51
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Us E3z-d61 Photoelectric Sensor Switch Diffuse-reflective Pre-wired Npn 5-100mm
Us E3z-d61 Photoelectric Sensor Switch Diffuse-reflective Pre-wired Npn 5-100mm
9.99
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Reflex Photoelectric Switch Sensor Optical Sensor Npn No Distance 2m Dc 10-30v
Reflex Photoelectric Switch Sensor Optical Sensor Npn No Distance 2m Dc 10-30v
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Photoelectric Photocell Dusk To Dawn Button Flush Mount Photo Control Eye Switch
Photoelectric Photocell Dusk To Dawn Button Flush Mount Photo Control Eye Switch
11.95
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Photoelectric Photocell Dusk To Dawn Button Photo Control Eye Switch Mount Aagvx
Photoelectric Photocell Dusk To Dawn Button Photo Control Eye Switch Mount Aagvx
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Omron E3z-r61 Photoelectric Switch E3zr61 Sensors Cable New
Omron E3z-r61 Photoelectric Switch E3zr61 Sensors Cable New
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6 Pieces Tcrt5000 Infrared Reflective Ir Optical Sensor Photoelectric Switch A18
6 Pieces Tcrt5000 Infrared Reflective Ir Optical Sensor Photoelectric Switch A18
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Banner Se61e Photoelectric Sensor Through Beam Emitternew
Banner Se61e Photoelectric Sensor Through Beam Emitternew
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Omron E3z-t61-l Photoelectric Sensor
Omron E3z-t61-l Photoelectric Sensor
22.48
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New E3s-gs30e4 Infrared Photoelectric Induction Switch Diffuse Reflection Sensor
New E3s-gs30e4 Infrared Photoelectric Induction Switch Diffuse Reflection Sensor
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Us Stock E3f-r2pk M18 X 1 Reflective Photoelectric Switch Sensor Pnp No Dc6-36v
Us Stock E3f-r2pk M18 X 1 Reflective Photoelectric Switch Sensor Pnp No Dc6-36v
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Keyence Pz-m33p Photoelectric Sensor
Keyence Pz-m33p Photoelectric Sensor
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Ripley 7051 Sun Switch Photoelectric Control Sensor Photocontroller 105-135v
Ripley 7051 Sun Switch Photoelectric Control Sensor Photocontroller 105-135v
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New Banner Sm31e Photoelectric Sensor Pn 25623
New Banner Sm31e Photoelectric Sensor Pn 25623
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25623 Banner Photoelectric Sensor Switch Sm31e
25623 Banner Photoelectric Sensor Switch Sm31e
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26397 Banner Photoelectric Sensor Switch Sm912dsrqd
26397 Banner Photoelectric Sensor Switch Sm912dsrqd
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Omron E3a2-r3m4t Photoelectric Switch 24-240 Vac
Omron E3a2-r3m4t Photoelectric Switch 24-240 Vac
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Banner S183e Photoelectric Sensor Emitter Tsc
Banner S183e Photoelectric Sensor Emitter Tsc
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Banner Mini-beam Sm2a31r Photoelectric Sensor 24-240 Vac 300 Ma
Banner Mini-beam Sm2a31r Photoelectric Sensor 24-240 Vac 300 Ma
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New Keyence Photoelectric Transmitter Sensor Ps-55
New Keyence Photoelectric Transmitter Sensor Ps-55
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New Automation Direct Ss5-0n-4e Photoelectric Sensor 10-30vdc
New Automation Direct Ss5-0n-4e Photoelectric Sensor 10-30vdc
24.85
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Efector Ifm In-3002-fpkg Photoelectric Sensor S 2mm U 18-30v Dc I100ma New
Efector Ifm In-3002-fpkg Photoelectric Sensor S 2mm U 18-30v Dc I100ma New
69.95
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Efector Ogp280 Photoelectric Sensor 10-30vdc
Efector Ogp280 Photoelectric Sensor 10-30vdc
20.00
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New Omron E3s-at11 Photoelectric Switch Sensor 10 To 30 Vdc
New Omron E3s-at11 Photoelectric Switch Sensor 10 To 30 Vdc
44.99
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New Banner 27429 Mini Beam Photoelectric Sensor Sm2a312dbzqd
New Banner 27429 Mini Beam Photoelectric Sensor Sm2a312dbzqd
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Omron E3s-ls10xe4 Photoelectric Sensor Reflective.
Omron E3s-ls10xe4 Photoelectric Sensor Reflective.
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Omron E3z-ls81 Photoelectric Sensor
Omron E3z-ls81 Photoelectric Sensor
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3pcs Tracing Sensor Module Tcrt5000 Infrared Reflection Photoelectric Switch
3pcs Tracing Sensor Module Tcrt5000 Infrared Reflection Photoelectric Switch
4.40
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Seeka Gs5n Photoelectric Sensor
Seeka Gs5n Photoelectric Sensor
35.00
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Banner Qs30edvq Photoelectric Sensor
Banner Qs30edvq Photoelectric Sensor
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New Omron E3z-r61 Photoelectric Sensor
New Omron E3z-r61 Photoelectric Sensor
20.23
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Sm2a312lv Banner Mini-beam Photoelectric Sensor
Sm2a312lv Banner Mini-beam Photoelectric Sensor
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New Omron E3c-ls3r 2m Photoelectric Switch Sensor
New Omron E3c-ls3r 2m Photoelectric Switch Sensor
15.00
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Efector 200 Photoelectric Sensor Switch Of5027 Ofb-fpkgus-100
Efector 200 Photoelectric Sensor Switch Of5027 Ofb-fpkgus-100
78.75
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Nib Sick Optic Photoelectric Sensor Wt12-2n040s14
Nib Sick Optic Photoelectric Sensor Wt12-2n040s14
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Omron E3t-sl11 Photoelectric Sensor
Omron E3t-sl11 Photoelectric Sensor
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Keyence Lz-a152 Photoelectric Laser Sensor 12-24vdc 100ma Guaranteed
Keyence Lz-a152 Photoelectric Laser Sensor 12-24vdc 100ma Guaranteed
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Keyence R-5 Photoelectric Sensor Reflector With Mounting Bracket
Keyence R-5 Photoelectric Sensor Reflector With Mounting Bracket
28.25
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Photoelectric Sensor M5 Threaded Diffuse Infrared Light Emission Npn
Photoelectric Sensor M5 Threaded Diffuse Infrared Light Emission Npn
21.00
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Square D Photoelectric Switch Pe3bsndp 1224vdc New
Square D Photoelectric Switch Pe3bsndp 1224vdc New
30.00
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Omron Photoelectric Switch Sensor -- E3s-cd11 -- New
Omron Photoelectric Switch Sensor -- E3s-cd11 -- New
45.00
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Banner Photoelectric Sensor Sp12srlqd  Used
Banner Photoelectric Sensor Sp12srlqd Used
25.00
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New Omron E3s-5le41 Photoelectric Sensor 12-24 Vdc 2mm
New Omron E3s-5le41 Photoelectric Sensor 12-24 Vdc 2mm
25.00
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Datalogic S50-ma-5-m03-pp M12 1030v-dc Photoelectric Sensor
Datalogic S50-ma-5-m03-pp M12 1030v-dc Photoelectric Sensor
32.48
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Qty 2 - Keyence Pz-m63p Photoelectric Sensor
Qty 2 - Keyence Pz-m63p Photoelectric Sensor
75.00
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Tri-tronics D.c. Eye Photoelectric Sensor
Tri-tronics D.c. Eye Photoelectric Sensor
40.00
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New 26055 Banner Photoelectric Sensor Switch Sm2a312lvag
New 26055 Banner Photoelectric Sensor Switch Sm2a312lvag
44.99
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Keyence Ps-52 Photoelectric Sensor Switch
Keyence Ps-52 Photoelectric Sensor Switch
49.95
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Sick Small Photoelectric Sensor 1030 Vdc 4 Pin Barrel Wl12-p4381
Sick Small Photoelectric Sensor 1030 Vdc 4 Pin Barrel Wl12-p4381
19.99
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Banner Qs30edvqpma Photoelectric Sensor
Banner Qs30edvqpma Photoelectric Sensor
20.00
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New Banner Engineering Photoelectric Infrared Sensors Qs18vn6r-75132 10vdc30vdc
New Banner Engineering Photoelectric Infrared Sensors Qs18vn6r-75132 10vdc30vdc
22.95
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Ffiz-bp-1e Photoelectric Sensor
Ffiz-bp-1e Photoelectric Sensor
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Omron Photoelectric Switch
Omron Photoelectric Switch
149.00
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16658 Banner Photoelectric Sensor Switch Sm502a
16658 Banner Photoelectric Sensor Switch Sm502a
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Keyence Ps-52 Photoelectric Sensor Switch New
Keyence Ps-52 Photoelectric Sensor Switch New
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Keyence Ps-47 Photoelectric Sensor
Keyence Ps-47 Photoelectric Sensor
25.00
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Banner Opbt2qdh Photoelectric Sensor 10-30v-dc
Banner Opbt2qdh Photoelectric Sensor 10-30v-dc
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Omron E3s-x2ce4 Photoelectric Switch 12-24vdc Npn Output 80 Ma
Omron E3s-x2ce4 Photoelectric Switch 12-24vdc Npn Output 80 Ma
12.74
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Keyence Pz-v11 Photoelectric Reflective Sensor
Keyence Pz-v11 Photoelectric Reflective Sensor
21.24
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Banner Valu-beam Photoelectric Sensor Sm912lvqd
Banner Valu-beam Photoelectric Sensor Sm912lvqd
6.99
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Omron Photoelectric Sensor Amplifier E3c-jc4p
Omron Photoelectric Sensor Amplifier E3c-jc4p
2.27
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New Banner Sm31r Mini-beam Photoelectric Sensor Pn 25622
New Banner Sm31r Mini-beam Photoelectric Sensor Pn 25622
24.99
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Sun-tech Fp S1038-3 Red Outdoor Photoelectric Light Control Sensor
Sun-tech Fp S1038-3 Red Outdoor Photoelectric Light Control Sensor
19.95
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Photoelectric Sensor Deflector 90 Degree For Any 12mm Cylindrical Photo Switch
Photoelectric Sensor Deflector 90 Degree For Any 12mm Cylindrical Photo Switch
10.00
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27189 Banner Photoelectric Sensor Switch Power Block Opbt2qdh
27189 Banner Photoelectric Sensor Switch Power Block Opbt2qdh
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Keyence Pr-g61cbd Photoelectric Sensor 10-30vdc Class 2
Keyence Pr-g61cbd Photoelectric Sensor 10-30vdc Class 2
80.99
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Electromatic Dp10e Photoelectric Sensor 12-24vdc
Electromatic Dp10e Photoelectric Sensor 12-24vdc
50.00
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Banner Lm3 Photoelectric Sensor 1538a
Banner Lm3 Photoelectric Sensor 1538a
17.00
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Banner D10bfp Photoelectric Sensor
Banner D10bfp Photoelectric Sensor
75.00
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Banner Rsblv Photoelectric Sensor Head
Banner Rsblv Photoelectric Sensor Head
10.96
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Keyence Photoelectric Sensor Head10-30vdc Class 2 Pr-g61cbd
Keyence Photoelectric Sensor Head10-30vdc Class 2 Pr-g61cbd
124.99
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Banner 10 - 30 Vdc 250ma Max Load Photoelectric Sensor Q45bb6lpq
Banner 10 - 30 Vdc 250ma Max Load Photoelectric Sensor Q45bb6lpq
17.99
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Omron Photoelectric Sensor  E3s-cd61-m1j  New In Box
Omron Photoelectric Sensor E3s-cd61-m1j New In Box
170.00
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Keyence Pr-g41cp Photoelectric Sensor Diffuse Reflective 500 Mm 10-30vdc
Keyence Pr-g41cp Photoelectric Sensor Diffuse Reflective 500 Mm 10-30vdc
65.69
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Banner Engineering Photoelectric Infrared Emitters Qs186e 10-30vdc 0-20 Meters
Banner Engineering Photoelectric Infrared Emitters Qs186e 10-30vdc 0-20 Meters
8.99
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Nnb Omron E3c-s50 Photoelectric Sensor Sender
Nnb Omron E3c-s50 Photoelectric Sensor Sender
18.00
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Banner Engineering Qs30edvq Photoelectric Sensor
Banner Engineering Qs30edvq Photoelectric Sensor
32.29
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Brand New Omron Photoelectric Sensor E3z-t81-d
Brand New Omron Photoelectric Sensor E3z-t81-d
20.00
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Used Opcon Photoelectric Sensor 1173a-100
Used Opcon Photoelectric Sensor 1173a-100
49.00
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Sick Proximity Photoelectric Sensor 4-pin Wt12-2p430
Sick Proximity Photoelectric Sensor 4-pin Wt12-2p430
37.04
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E18-d80nk Infrared Photoelectric Switch Obstacle Avoidance Sensor Module Usa
E18-d80nk Infrared Photoelectric Switch Obstacle Avoidance Sensor Module Usa
5.35
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Keyence Photoelectric Sensor Amplifier Ps-25 New
Keyence Photoelectric Sensor Amplifier Ps-25 New
20.00
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Banner Rsbr W Rpbr Photoelectric Sensor Used
Banner Rsbr W Rpbr Photoelectric Sensor Used
25.00
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Keyence Pr-g61cbd Photoelectric Sensor Brand New
Keyence Pr-g61cbd Photoelectric Sensor Brand New
95.00
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Keyence Pz-m63p Photoelectric Sensor
Keyence Pz-m63p Photoelectric Sensor
75.00
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Banner Photoelectric Sensor Qs18vp6llpq8
Banner Photoelectric Sensor Qs18vp6llpq8
20.89
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Omron Photoelectric Switch E3c-jc4p Nos
Omron Photoelectric Switch E3c-jc4p Nos
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Omron Photoelectric Sensor Switch -- E3t-fd13 -- New
Omron Photoelectric Sensor Switch -- E3t-fd13 -- New
30.00
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Sick Et2-p224 Photoelectric Sensor - 7028651
Sick Et2-p224 Photoelectric Sensor - 7028651
30.00
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Keyence Ps-t0 Photoelectric Sensor Module Usa Sale
Keyence Ps-t0 Photoelectric Sensor Module Usa Sale
10.00
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In addition to the thin lines, there are tiny holes that are usually drilled where you should place any component that you need. For example, if a microchip is part of the circuit and requires eight connections, you will find the same number of holes on the PCB. Presence of the holes ensures that you are able to mount the necessary components fast. The holes also help you to save a lot of space.

For the PCB to last for a long time you need to take good care of it. When handling it always ensure that you wear rubber-soled shoes in order to prevent a buildup of static electricity that could harm the PCB. To discharge any residual electricity that might be stored in your body you should first touch a piece of metal for at least two seconds.

Sometimes you'll be able to get through all these questions during the qualification stage, but if you get rushed, ask as many as you can. It's important that you have a clear idea of what your influencer's role is, and how much influence he or she actually has before you go through your demo or presentation later.