7mm 7-Segment 2-Digit Display with Common Anode in RED (2821BS)

The 2821BS is a compact 2-digit 7-segment LED display with a common anode configuration and ultra-bright red emission. With a digit height of 7 mm (0.28 inch), it is ideal for space-constrained numerical readouts in digital clocks, counters, and measurement instruments. Its standard 2.54 mm pin pitch simplifies prototyping and panel integration.

✅ Key Features

• Common Anode configuration for multiplexed driving
• Ultra-bright red emission (λp 640 nm)
• 7 mm (0.28 inch) digit height for clear readability
• Black face with white segments for high contrast
• Standard 2.54 mm pin pitch; 18-pin package
• Compact body: approx. 19 × 12 × 7 mm

🔧 Technical Specifications

• Model: 2821BS
• Number of Digits: 2
• Display Type: 7-segment
• Digit Height: 0.28 inch (7 mm)
• Emission Color: Ultra-bright red
• Connection Type: Common Anode
• Appearance: Black surface 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 voltage)
• 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 Dimensions: Approx. 19 mm (W) × 12 mm (H) × 7 mm (D)
• Pin Pitch: 2.54 mm
• Total Pin Count: 18

🔎 Application Notes

• Drive via multiplexing with appropriate current-limiting resistors.
• Observe per-segment current and power limits to ensure reliability.
• Follow the specified soldering profile to avoid thermal damage.