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Electromechanical

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VEL-MAGNET8 Magnet Ø10 x 5mm - 10 pcs
VEL-MAGNET8 Ø10 x 5mm - 10 pcs Rare Earth Magnet
US$23.80
Features: Barrel-shaped. Plated with bright Nickel for added durability. Very powerful magnets. Permanent magnetic strength. Specifications: Material: rare earth (Neodymium). Rating: N35 ~ N45. Dimensions: Ø13/32" x 13/64".
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VEL-MAGNET7 Magnet Ø18 x 3mm - 3 pcs
VEL-MAGNET7 Ø18 x 3mm - 3 pcs Rare Earth Magnet
US$11.13
Features: Barrel-shaped. Plated with bright Nickel for added durability. Very powerful magnets. Permanent magnetic strength. Specifications: Material: rare earth (Neodymium). Rating: N35 ~ N45. Dimensions: Ø23/32" x 1/8".
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FIT0324 Encoder Adapter
FIT0324 Encoder Adapter
US$6.25
This adapter is especially designed for DFRobot 12V DC Motors.
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VEL-VR15M121C Miniature Relay- 15A/28VDC-125VAC 7A/220VAC 1 x inverter 12Vdc
VEL-VR15M121C Miniature Relay- 15A/28VDC-125VAC 7A/220VAC 1 x inverter 12Vdc
US$2.79
Coil voltage: 12V DC. Coil resistance: 360ohm. Contact: 1 x inverter. Nom. power consumption: 450mW. Dielectric strength: 1000V / 50Hz (1 minute). Temperature range: -40°F to 158°F. Internal contact material: AgCd0.
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VEL-TV4 Piezo Transducer 30Vac 0.5-20Hz 75dB LEAD TYPE
VEL-TV4 Piezo Transducer 30Vac 0.5-20Hz 75dB LEAD TYPE
US$2.27
The piezoelectric ceramic buzzer has a simple structure in which a ceramic piezo-element is glued to a vibration plate.
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VEL-SV/PS1 Mini Piezo Siren 6-15VDC / 140mA 107dB W/Leads
VEL-SV/PS1 Mini Piezo Siren 6-15VDC / 140mA 107dB W/Leads
US$8.33

Specifications: ABS. Wired siren. Operating voltage: 6-15Vdc. Current consumption (at 12Vdc with siren): 200mA. Oscillating frequency: 1.5-3.5kHz. Sound pressure level (at 1m): 107dBA. Dimensions: 1.5" x 1.7" x 2.2". Mounting holes: 0.87".

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PBS-A-105 16mm Panel Mount Momentary Pushbutton - Black
PBS-A-105 16mm Panel Mount Momentary Pushbutton - Black
US$1.84
It's not that exciting, no LEDs, no bells & whistles. But we really like it anways, look at that lovely rounded shape, that elegant bevel. If you're going to go with a momentary pushbutton, let it be this one! 
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PBS-A-110 16mm Panel Mount Momentary Pushbutton - Green
PBS-A-110 16mm Panel Mount Momentary Pushbutton - Green
US$1.99
It's not that exciting, no LEDs, no bells & whistles. But we really like it anways, look at that lovely rounded shape, that elegant bevel. If you're going to go with a momentary pushbutton, let it be this one! 
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PBS-A-115 16mm Panel Mount Momentary Pushbutton - Yellow
PBS-A-115 16mm Panel Mount Momentary Pushbutton - Yellow
US$1.99
It's not that exciting, no LEDs, no bells & whistles. But we really like it anways, look at that lovely rounded shape, that elegant bevel. If you're going to go with a momentary pushbutton, let it be this one! 
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VEL-R13244BG/LED Green LED Illuminated Rocker Switch 2P DPST /ON-OFF 12V
VEL-R13244BG/LED DPST /ON-OFF Green LED Illuminated Rocker Switch 2P 12V
US$5.53

Specifications: Illumination: Green LED (12V). Contact rating: 16A/ 12Vdc. Electrical life: 20000 cycles. Mechanical life: 50000 cycles. Contact resistance: 50mohm. Insulation resistance: min. 100Mohm at 500Vdc. Dielectric strength: 1500Vac / 1 minute.

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1512-ADA Lock-style Solenoid - 12VDC
1512-ADA Lock-style Solenoid - 12VDC
US$26.17
Solenoids are basically electromagnets: they are made of a big coil of copper wire with an armature (a slug of metal) in the middle. When the coil is energized, the slug is pulled into the center of the coil. This makes the solenoid able to pull from one end. 
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DFR0105 Power Shield (Arduino Compatible)
DFR0105 Power Shield (Arduino Compatible)
US$34.93
Most Arduino projects may need more than two voltage supplies. When feed with from 4.5-35V, this power shield is able to provide a voltage range from 1.25-12V with 3A peak current. Ideal for servo control and other non-standard components. With this shield, your Arduino will now have one power supply for all.
Delivery within 2-3 weeks
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PBS-A-530 16mm Illuminated Pushbutton - White Momentary
PBS-A-530 16mm Illuminated Pushbutton - White Momentary
US$3.84
This is a medium sized button, large enough to press easily but not too big that it gets in the way of your project panel. It has a built in LED that can be controlled separately from the switch action - either to indicate or just to look good.
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PBS-A-535 16mm Illuminated Pushbutton - White Latching On/Off Switch
PBS-A-535 On/Off Switch 16mm Illuminated Pushbutton - White Latching
US$3.84
This is a medium sized button, large enough to press easily but not too big that it gets in the way of your project panel. It has a built in LED that can be controlled separately from the switch action - either to indicate or just to look good. The body is a black plastic with the LED built inside.
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PBS-A-540 16mm Illuminated Pushbutton - Blue Momentary
PBS-A-540 16mm Illuminated Pushbutton - Blue Momentary
US$3.84
This is a medium sized button, large enough to press easily but not too big that it gets in the way of your project panel. It has a built in LED that can be controlled separately from the switch action - either to indicate or just to look good. The body is a black plastic with the LED built inside.
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176 - 190
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192 - 206