Product Overview
Archer Cat. 276-086 10mm Water-Clear 660nm High-Output Lamp
Condition
Unused new old stock (NOS). Markings legible: ARCHER Cat. No. 276-086 JUMBO SUPER-BRIGHT LED. Reverse printed with Tandy Corporation specifications and Japan origin.
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Product Overview
Archer catalog number 276-086 is a 10mm jumbo red light-emitting diode engineered for high optical output. Operating at a nominal 1.85V and 20mA, this 660nm solid-state indicator delivers 5,000 mcd of visible red illumination through a water-clear non-diffused epoxy lens.
Key Features
- Peak emission wavelength: 660 nm (red)
- Luminous intensity: 5,000 mcd at 20 mA test current
- Forward voltage: 1.85 V nominal, 2.5 V maximum
- Maximum continuous forward current: 30 mA (75 mW power dissipation)
- Lens diameter: 10 mm (jumbo / T-3 1/4) water-clear package
- Lead termination: Two radial through-hole wire leads with longer lead anode
Applications
- Status indicators and high-visibility front-panel displays in custom bench equipment
- Benchtop electronic prototyping, educational breadboards, and maker circuit builds
- Astronomy red-light illumination boxes and darkroom safety lighting fixtures
Frequently Asked Questions
How is polarity identified on this component?
The longer wire lead designates the anode (+), while the shorter lead designates the cathode (-).
What is the physical diameter of the dome?
The lens measures 10mm across, which corresponds to the jumbo T-3 1/4 indicator standard.
Can this LED run directly from a standard logic supply without external resistance?
No. A current-limiting series resistor is required to keep forward current below the 30mA continuous maximum rating.
Back when 5,000 millicandela in a 10mm dome was the brightest indicator on the pegboard, Archer had you covered. Wire it into your chassis, drop in the right dropping resistor, and let that deep red beam do the talking.
