Product Overview
Bright Red 5mm LED With a Water Clear Lens, Rated 6000-7000 mcd
Condition
New, unused stock. In our photos the lens is a colorless water clear epoxy dome with the die and reflector cup plainly visible through it, and the leads are bright, straight, and untrimmed with no oxidation or solder on them. Against the PartsMine millimeter ruler the body measures approximately 5 mm across with roughly 26 mm of lead, about 35 mm overall. The other two photos show one of these parts powered on a solderless breadboard, glowing a saturated red from a clear lens. Sold as individual LEDs, loose, without packaging or a resistor.
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Product Overview
This is a standard 5 mm through-hole red LED in a water clear, non-diffused encapsulation, stocked at PartsMine as A23040. Water clear means the lens carries no tint or diffusant, so the part reads as an ordinary clear bulb when it is off and throws a tight, bright, on-axis red when it is on, which is exactly what the lit breadboard photos show. The listed output is 6000-7000 mcd at 25 degrees, with an operating voltage of 3.0 to 3.4 VDC and a forward current of 20 mA. Two radial leads come untrimmed for through-hole boards, breadboards, panel bezels, or flying-lead work. Like any LED it needs a series current-limiting resistor sized to your supply rail.
Key Features
- Light color: red
- Luminous intensity: 6000-7000 mcd at 25 degrees, as specified on this part
- Encapsulation and lens color: water clear, non-diffused
- Lens size: 5 mm
- Operating voltage: 3.0 to 3.4 VDC
- Forward current: 20 mA
- Package: through-hole, two untrimmed radial leads, approximately 35 mm overall against the ruler
- Condition: New
Applications
- Bench technician putting a power-on indicator back into a repaired chassis where the original lamp is long gone
- Prototyper on a solderless breadboard who wants an indicator bright enough to read across the room, the exact setup pictured here
- Kit builder or instructor stocking a class set of red status LEDs one or two at a time instead of by the hundred
- Panel builder replacing burned-out red indicators behind a clear bezel, where a diffused lens would look wrong
Frequently Asked Questions
What series resistor should I use with this LED?
Size it from your supply. Take your rail voltage, subtract the 3.0 to 3.4 VDC forward voltage listed here, and divide by 0.02 A. From a 5 V rail that lands near 90 ohms, so 100 ohms is the usual standard value. No resistor is included.
Does the lens look red when the LED is off?
No. The unlit photo shows a colorless, glass-like clear dome. The red comes only from the die, which is why the powered photos look so different from the ruler shot. If you need a part that reads red while dark, you want a diffused red lens instead.
Which lead is positive?
The two leads in our photo are close in length, so do not judge polarity by eye. Check it with a meter's diode test or with the flat on the lens flange before you solder or before you commit a breadboard row.
Is the 25 degree figure the viewing angle?
The original spec for this part reads 6000-7000 mcd at 25 degrees and nothing further. Whether that describes beam angle or test conditions is not confirmed here, so verify against the datasheet for your build if beam width matters.
Why buy two or three LEDs here instead of a bag of 100 somewhere else?
Because an indicator repair usually needs one LED, not a hundred. PartsMine sells the exact count you need, whether that is a single piece for a chassis or a handful for a prototype. Shipping is $8 flat rate and free over $28, and orders go out the same or next business day from Idaho, so a small order stays a small order.
Water clear until you give it 20 milliamps, then it has nothing subtle left to say. Add a resistor, pick a row on the board, and let it start reporting on your circuit.
