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RadioShack® 5mm LED (Blue)

Model:

276-311

 | Catalog #: 276-311
Price:
$3.99
$3.99
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4

  • Ideal for hobbies and electronics projects
  • High visibility, T-1 3/4 (5mm)
  • Intensity: 280mcd (typical), wavelength: 395nm (minimum), 410nm (maximum)
  • Viewing angle: 30°
  • FW current: 20mA; FW supply: 3.2 (typical), 3.8V (maximum)
  • RoHS compliant

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ONLINE In stock
Usually ships in 1 - 2 business days
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  • Lens color clear; emitted color blue
  • Intensity mcd minimum 400mcd; typical 650mcd
  • Wave-length nm (typical): 465nm minimum; 470nm maximum
  • Viewing angle (degree): 154°
  • FW current (IF) (mA): 20 mA
  • FW Supply (V)(typical) 3.1V; maximum 3.5V

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Product Summary

Small but mighty lighting.

LEDs, or light-emitting diodes, are tiny light bulbs that fit easily into an electrical circuit. This 5mm blue LED has a clear-color lens.

  • High visibility
  • Easy to install
  • Size: T-1-3/4 or 5mm
  • Typical voltage: 5.0, with a maximum voltage of 6.0V
  • Typical wavelength: 430mm
  • Typical MCD: 300
  • Viewing angle: 24°
  • 30mA (max)
  • Sold in package of 1
Pricing and availability: Please note that all prices are subject to change without prior notice. Prices advertised on this site are for online orders only. Prices on some items may differ from those advertised in RadioShack stores. All merchandise may not be available at all stores, and all stores may not participate in all sales promotions. We recommend you contact the store to confirm product availability and price.

What's in the box

  • 5mm Blue LED (1)
 

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Usually ships in 1 - 2 business days

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Other ways to get it


In store: Check availability
By phone: 1-800-843-7422

Manufacturer Warranty

  • Parts: 90 days
  • Labor: month
Tech Specs

Customer Reviews

REVIEW SNAPSHOT®

by PowerReviews
RadioShack5mm Blue LED
 
3.3

(based on 12 reviews)

Ratings Distribution

  • 5 Stars

     

    (3)

  • 4 Stars

     

    (2)

  • 3 Stars

     

    (4)

  • 2 Stars

     

    (1)

  • 1 Stars

     

    (2)

64%

of respondents would recommend this to a friend.

Pros

  • Reliable (3)

Cons

    Best Uses

    • High-end equipment (3)
      • Reviewer Profile:
      • Enthusiast (4), Power user (4)
      • Primary use:
      • Personal (8), Business (4)
      • Was this a gift?:
      • No (4)

    Reviewed by 12 customers

    Sort by

    Displaying reviews 1-10

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    (3 of 6 customers found this review helpful)

     
    3.0

    Tested Wavelength

    By Labrat

    from Philadelphia, PA

    About Me Power User

    Pros

      Cons

        Best Uses

          Comments about RadioShack 5mm Blue LED:

          430 nm sounded fishy so I tested this in the lab's spectrophotometer.
          The peak for my LED is at 450 nm with a full-width-half-maximum stretching from 432 nm up to 504 nm.
          The spectral response is not a clean gaussian. This will lead to much trouble when using a photodiode to measure flux, as such devices must be calibrated to a certain wavelength. If obliged to do so, I suggest using the centroid, which for the LED I tested is 465 nm.

          • Primary use:
          • Business
          • Was this a gift?:
          • No
           
          3.0

          emergency only! a bit pricey

          By tru2037

          from Tampa FL

          About Me Casual User

          Pros

          • Consistent Performance

          Cons

          • Price

          Best Uses

            Comments about RadioShack 5mm Blue LED:

            half this price I may of got more but as I said - emergency only! You can find a 50 pack for this price.

            • Primary use:
            • Personal
            • Was this a gift?:
            • No
             
            5.0

            Nice LEDs

            By me

            from co

            About Me Casual User

            Verified Reviewer

            Pros

              Cons

                Best Uses

                  Comments about RadioShack 5mm Blue LED:

                  I've used these LEDs on computers ,ext hard drives,printers , home phones ,tvs ,coffee pots ,radios ,cars int lights, car radios,car amps . I like them I will use them again.

                  • Primary use:
                  • Personal
                  • Was this a gift?:
                  • No

                  (13 of 13 customers found this review helpful)

                   
                  2.0

                  not bright enough

                  By ItsNaimTime

                  from Minneapolis, MN

                  About Me Power User

                  Pros

                    Cons

                      Best Uses

                        Comments about RadioShack 5mm Blue LED:

                        I wish they would display the color of these on the website or in stores you you can see what your buying. I hooked up these LEDs and lots of them did not even work on the circuit board, wish i'd get what i paid for!

                        • Primary use:
                        • Personal
                        • Was this a gift?:
                        • No

                        (18 of 18 customers found this review helpful)

                         
                        1.0

                        inadequate documentation

                        By Color me Jaded

                        from Elsewhere, Tx

                        About Me Power User

                        Verified Reviewer

                        Pros

                        • Amazing High price

                        Cons

                        • Extremely Over Priced
                        • No documentation
                        • Not acurately described

                        Best Uses

                        • Conspicuous consumption

                        Comments about RadioShack 5mm Blue LED:

                        This store bin lists this as a 6 volt led.The package lists this as a 5 volt led.The tech specs on this web page do not list any usable specs. Forward voltage? Operating current?Please look elsewhere.

                        • Primary use:
                        • Business

                        (16 of 16 customers found this review helpful)

                         
                        3.0

                        Could use more info on all LED's

                        By Santo_51

                        from Staten Island, NY

                        About Me Enthusiast

                        Verified Reviewer

                        Pros

                          Cons

                            Best Uses

                              Comments about RadioShack 5mm Blue LED:

                              It would be great if the proper spec's were givin, like Forward Voltage & Forward Current, and other related infomation

                              • Primary use:
                              • Personal

                              (22 of 22 customers found this review helpful)

                               
                              3.0

                              Good, but not actually a 5V LED

                              By SCCA Racer X

                              from Illinois

                              About Me Enthusiast

                              Verified Reviewer

                              Pros

                              • Availability

                              Cons

                              • Cost

                              Best Uses

                              • Indicator

                              Comments about RadioShack 5mm Blue LED:

                              I used this LED in a computer case as a power indicator. I had to resort to this when the motherboard's power LED output stopped putting out the proper voltage following a BIOS update.

                              I recommend using a 68 Ohm 1/8 watt (or more) resistor in series when being driven directly from a 5 Volt constant voltage source, for example from a PC power supply red-black wire pair. When driven directly, as the 5 V forward voltage spec would suggest, the LED gets quite hot, and service life would be expected to suffer because of this. All LEDs need a current limiting resistor, and as far as I can tell, this LED does not have one built-in.

                              I experimented with 47 and 100 Ohm resistors as well. With a 47 Ohm resistor, the LED still heats up too much for my comfort. With a 100 Ohm resistor, the LED runs cool, but is dimmer than with a 68 Ohm resistor. With a 68 Ohm resistor, the LED still produces a little heat, but the brightness is good. If you can find an 82 Ohm resistor, that might be ideal, but RS does not carry that value. These results suggest that Vf (forward voltage) of this LED is roughly 3.5 Volts, which is typical for a blue LED, not 5 Volts as indicated on the package.

                              • Primary use:
                              • Personal

                              (13 of 14 customers found this review helpful)

                               
                              4.0

                              Great for your computer

                              By Rozzy83

                              from Beachwood NJ

                              About Me Enthusiast

                              Verified Buyer

                              Pros

                              • Good Length

                              Cons

                                Best Uses

                                • High-End Equipment

                                Comments about RadioShack 5mm Blue LED:

                                I replaced the burned out lights in my computer tower with these, they last for about 4 years before they start burning out again they are nice and bright

                                • Primary use:
                                • Personal

                                (13 of 13 customers found this review helpful)

                                 
                                5.0

                                The magical blue

                                By jellydean

                                from cincinnati, oh

                                About Me Enthusiast

                                Pros

                                • Consistent Performance

                                Cons

                                  Best Uses

                                  • High-End Equipment

                                  Comments about RadioShack 5mm Blue LED:

                                  This led filled gaps that other could not. Quality led

                                  • Primary use:
                                  • Business

                                  (14 of 15 customers found this review helpful)

                                   
                                  5.0

                                  working fine

                                  By Salways

                                  from Massachusetts

                                  About Me Power User

                                  Verified Buyer

                                  Pros

                                  • Consistent Performance

                                  Cons

                                    Best Uses

                                    • High-End Equipment

                                    Comments about RadioShack 5mm Blue LED:

                                    These were ordered along with other LED's, the ones I used are all working fine, all came without any shipping damage.

                                    • Primary use:
                                    • Personal

                                    Displaying reviews 1-10

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