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£0.57
The 555 is a highly stable device for generating accurate time delays or oscillation. Additional terminals are provided for triggering or resetting if desired. In the time delay (monostable) mode of operation the time is precisely controlled by one external resistor and one capacitor. For stable operation as an oscillator, the free running frequency and the duty cycle are both accurately controlled with two external resistors and one capacitor. The circuit may be triggered and reset on falling waveforms and the output structure can source or sink up to 200mA or drive TTL directly. This IC may also be correctly supplied marked as MC1455PI. Supply decoupling must be provided close to the IC to counter the crowbar effect of the device s internal discharge switch, a suitable value is 10 to 100µF as shown in the accompanying diagrams. Monostable Mode Time Delay vs RA and C On time after triggering (i.e. applying a voltage to pin 2 less than 1/3 supply voltage) is equal to 1 1RAC. The load may be connected to VCC for normally-on operation or between pin 3 and ground for normally- off. Connecting reset to ground during on time, drives the output low until a new trigger pulse occurs. Additional trigger pulses during on time have no effect. If reset is not being used, connect it to VCC. Astable Mode (Oscillator) Free Running Frequency vs RA, RB and C The frequency is equal to 1 44/[(RA + 2RB)C]. The charge time (output high) is given by t1 = 0 693(RA + RB)C and the discharge time (output low) is given by t2 = 0 693(RB)C. Characteristics (typical)
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Ne555n Timer ( Ne555n ) : Maplin Electronics Ltd : Maplin Electronics Ltd : Cables, Parts & Power Supplies
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£0.59
This opto isolator has a min transfer ratio of 100% and a 7500V peak isolation voltage (5300V rms). Pin-out is the same as WL35Q. Absolute maximum ratings: Input to output voltage: 7500V peak, 5300V RMS Collector-base voltage (VCBO): 70V Collector-emitter voltage (VCEO): 70V Emitter-base voltage (VEBO): 7V Input diode reverse voltage: 3V Input diode continuous forward current: 90mA Continuous power dissipation: LED: 135mW Phototransistor: 200mW Total: 260mW Electrical characteristics (typical):
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Maplin Electronics Ltd Info : Maplin Electronics Ltd Over 12,000 products are available from our e-commerce and store network. Product categories include Sound & Vision, Computer Parts and Electronics. We introduce hundreds of exciting products every month and pride ourselves on our unique product offering.
Hi-Sensitivity Opto ( Hi-Sensitivity Opto ) : Maplin Electronics Ltd : Maplin Electronics Ltd : Cables, Parts & Power Supplies
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£0.69
Sub-miniature PCB mounting toggle switches with plain bushes, in either vertical or right angled mounting versions.
Rapid Online - Rapid Electronics Ltd. Site Offers : Check out the latest offers available at our website.
Rapid Online - Rapid Electronics Ltd. Info : RapidOnline.com - Defining the Standard Leading supplier of electronic components, electrical equipment, tools and educational supplies. More than 50,000 products available online, with FREE UK MAINLAND DELIVERY ON ORDERS OVER £30 (exc. VAT). Same-day despatch and no minimum order value. For the very best in components, electrical products and more, visit www.rapidonline.com today
Spdt Sub Min Vert Pcb Toggle Switch (Rc) : Taiway : Rapid Online - Rapid Electronics Ltd. : Cables, Parts & Power Supplies
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£0.79
A low cost, high quality NPN silicon phototransistor, having high illumination sensitivity, fast response timeand low dark current. Encapsulated in a 3mm water clear resin package.The collector is denoted by a flat on the package and the shorter of the two leads; there is no access to the base terminal. Similar to TIL78. Absolute maximum ratings: VCE: 20V PTOT: 75mW Electrical characteristics: Light current (VCE 3V, 880nm, 1000Lux) Min: 1 0mA Max: 20mA Dark current (VCE 10V)
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Maplin Electronics Ltd Info : Maplin Electronics Ltd Over 12,000 products are available from our e-commerce and store network. Product categories include Sound & Vision, Computer Parts and Electronics. We introduce hundreds of exciting products every month and pride ourselves on our unique product offering.
Infrared Phototransistor ( Infra-Red Sensor ) : Maplin Electronics Ltd : Maplin Electronics Ltd : Cables, Parts & Power Supplies
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£0.82
Sub-miniature PCB mounting toggle switches with plain bushes, in either vertical or right angled mounting versions.
Rapid Online - Rapid Electronics Ltd. Site Offers : Check out the latest offers available at our website.
Rapid Online - Rapid Electronics Ltd. Info : RapidOnline.com - Defining the Standard Leading supplier of electronic components, electrical equipment, tools and educational supplies. More than 50,000 products available online, with FREE UK MAINLAND DELIVERY ON ORDERS OVER £30 (exc. VAT). Same-day despatch and no minimum order value. For the very best in components, electrical products and more, visit www.rapidonline.com today
Spdt Sub Min R/A Pcb Toggle Switch (Rc) : Taiway : Rapid Online - Rapid Electronics Ltd. : Cables, Parts & Power Supplies
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£0.89
SP FHM580 Sub unit seal
SBR Sports Site Offers : Check out the latest offers available at our website.
SBR Sports Info : The UK's Largest Range of Swim Bike and Run Accessories SBR Sports are perfect store to purchase triathlon clothing, bike clothing, wetsuits for triathlon or any triathlon accessories you may need in the swim, bike and run field. We also provide professional training, have exclusive rights to Heron Lake which provides the ultimate environment for Ironman, triathlon training and open water swimming. SBR Sports are the number one UK sports specialists, offering amazing deals on a superb range of running, cycling, swimming, triathlon and fitness products.
Shimano Fh M580 Sub Unit Rubber Seal 2009 : Shimano : SBR Sports : Cycling
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£0.89
Genuine Shimano replacement part
SBR Sports Site Offers : Check out the latest offers available at our website.
SBR Sports Info : The UK's Largest Range of Swim Bike and Run Accessories SBR Sports are perfect store to purchase triathlon clothing, bike clothing, wetsuits for triathlon or any triathlon accessories you may need in the swim, bike and run field. We also provide professional training, have exclusive rights to Heron Lake which provides the ultimate environment for Ironman, triathlon training and open water swimming. SBR Sports are the number one UK sports specialists, offering amazing deals on a superb range of running, cycling, swimming, triathlon and fitness products.
Shimano Fh M580 Sub Unit Rubber Seal : Shimano : SBR Sports : Cycling
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£0.90
Sub-miniature PCB mounting toggle switches with plain bushes, in either vertical or right angled mounting versions.
Rapid Online - Rapid Electronics Ltd. Site Offers : Check out the latest offers available at our website.
Rapid Online - Rapid Electronics Ltd. Info : RapidOnline.com - Defining the Standard Leading supplier of electronic components, electrical equipment, tools and educational supplies. More than 50,000 products available online, with FREE UK MAINLAND DELIVERY ON ORDERS OVER £30 (exc. VAT). Same-day despatch and no minimum order value. For the very best in components, electrical products and more, visit www.rapidonline.com today
Dpdt Sub Min Vert Pcb Toggle Switch(Rc) : Taiway : Rapid Online - Rapid Electronics Ltd. : Cables, Parts & Power Supplies
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£0.99
· A sub-miniature push-to-make switch with non locking action · Available with red and black actuating button · Dimensions: 20·5mm(l), 7mm (dia.) · Rated 0·5A AC 125 V · Panel cut-out 5.2mm diameter A sub-miniature push-to-make switch with non locking action. Available with red and black actuating button. Overall size: 205mm long, 7mm dia. Rated 05A 125Vac. Panel cut-out 5mm dia.
Maplin Electronics Ltd Site Offers : Check out the latest offers available at our website.
Maplin Electronics Ltd Info : Maplin Electronics Ltd Over 12,000 products are available from our e-commerce and store network. Product categories include Sound & Vision, Computer Parts and Electronics. We introduce hundreds of exciting products every month and pride ourselves on our unique product offering.
Sub-Miniature Push-To-Make Switch ( Sub Min Push Sw Blk ) : Maplin Electronics Ltd : Maplin Electronics Ltd : Cables, Parts & Power Supplies
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£0.99
· A sub-miniature push-to-make switch with non locking action · Available with red and black actuating button · Dimensions: 20·5mm(l), 7mm (dia.) · Rated 0·5A AC 125 V · Panel cut-out 5.2mm diameter A sub-miniature push-to-make switch with non locking action. Available with red and black actuating button. Overall size: 205mm long, 7mm dia. Rated 05A 125Vac. Panel cut-out 5mm dia.
Maplin Electronics Ltd Site Offers : Check out the latest offers available at our website.
Maplin Electronics Ltd Info : Maplin Electronics Ltd Over 12,000 products are available from our e-commerce and store network. Product categories include Sound & Vision, Computer Parts and Electronics. We introduce hundreds of exciting products every month and pride ourselves on our unique product offering.
Sub-Miniature Push-To-Make Switch ( Sub Min Push Sw Red ) : Maplin Electronics Ltd : Maplin Electronics Ltd : Cables, Parts & Power Supplies
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Products on this page : Ne555n Timer ( Ne555n ) : Hi-Sensitivity Opto ( Hi-Sensitivity Opto ) : Spdt Sub Min Vert Pcb Toggle Switch (Rc) : Infrared Phototransistor ( Infra-Red Sensor ) : Spdt Sub Min R/A Pcb Toggle Switch (Rc) : Shimano Fh M580 Sub Unit Rubber Seal 2009 : Shimano Fh M580 Sub Unit Rubber Seal : Dpdt Sub Min Vert Pcb Toggle Switch(Rc) : Sub-Miniature Push-To-Make Switch ( Sub Min Push Sw Blk ) : Sub-Miniature Push-To-Make Switch ( Sub Min Push Sw Red )
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