7 mm 7‑Segment 3‑Digit Display, Common Cathode — 2831AS (Red)

The 2831AS is a compact 3‑digit, 7‑segment LED display with a digit height of 0.28 inch (7 mm). Featuring a common cathode configuration and ultra‑bright red emission, it is ideal for numeric readouts in digital meters, timers, clocks, counters, and general instrumentation.

Key Features ✨

• 3‑digit 7‑segment numeric display
• 0.28 inch (7 mm) digit height for clear readability
• Common cathode connection
• Red emission (peak wavelength λp ≈ 640 nm)
• 2.54 mm pin pitch with 12 pins for standard prototyping
• Black background with white segments for high contrast

Technical Specifications 🔧

• Model: 2831AS
• Number of digits: 3
• Display type: 7‑segment
• Digit height: 0.28 inch (7 mm)
• Emission color: Ultra‑bright red
• Connection type: Common cathode
• Appearance: Black background with white segments
• 

Electrical Characteristics (25°C) ⚙️

• Peak wavelength (λp): 640 nm
• Forward voltage (Vf): 1.8 V typical at 10 mA
• Reverse current (IR): ≤ 50 μA at 5 V reverse
• Continuous forward current: 30 mA per segment
• Peak forward current: 200 mA (1/10 duty cycle, 10 kHz)
• Power dissipation: 100 mW per segment
• Operating temperature: −20°C to +75°C
• Storage temperature: −20°C to +85°C
• Soldering temperature: 230°C for 5 s (1.6 mm from base)

Physical Dimensions 📏

• Overall size: Approx. 30 mm (W) × 10 mm (H) × 7 mm (D)
• Pin pitch: 2.54 mm
• Total pins: 12

Applications 🧪

• Digital meters and panel indicators
• Timers and stopwatches
• Clocks and counters
• General numeric display modules