LTC-3822YCA2 Yellow 4 Digit Common Anode 7-Segment Display Module
The LTC-3822YCA2 Yellow 4 Digit Common Anode 7-Segment Display Module is an industrial-grade, 0.28-inch (7.0 mm) quadruple-digit yellow LED display module into a robust 30-contact edge-connector PCB format. Operating as a Common Anode device, it requires a positive supply voltage to be switched across its four digit-enable pins (Anodes) while the individual segment shapes (A-G), decimal points, and specialized colon indicators are activated by pulling their corresponding cathode pins to ground through current-limiting resistors. Its GaAsP/GaP construction provides a high-intensity 585 nm yellow output designed for visibility in professional test equipment and industrial panels, offering significantly better mechanical stability and corrosion resistance via its copper-plated contact pads compared to the standard through-hole DIP packages found in basic consumer electronics.
Features
- 0.28-Inch Digit Height: A compact “low profile” character size (7.0 mm) that allows for high-density information display in small handheld or rack-mounted devices.
- Yellow GaAsP/GaP Technology: Uses Gallium Arsenide Phosphide on Gallium Phosphide. This provides a crisp yellow output (585 nm) which offers better visibility in high-ambient light environments compared to standard red LEDs.
- Multiplexed Internal Wiring: To reduce the pin count, the segments (A-G) of all four digits are connected in parallel. This requires “time-division multiplexing” to display different numbers on each digit.
- Common Anode Logic: The anodes of all segments within a single digit are tied together. This makes the module compatible with standard “sink-type” driver ICs (like the ULN2803 or 74HC595).
- Industrial Carrier PCB: Unlike standard 16-pin DIP (Dual In-line Package) LEDs that plug into sockets, this “YCA2” version is mounted on a rigid FR-4 PCB with Copper-plated pads for long-term corrosion resistance.
- Integrated Colon/Indicators: Features additional LEDs between the second and third digits, making it ideal for clock (HH:MM) or ratio displays.
Pinout Configuration
| Pin (Top Row) | Top Row Function | Pin (Bottom Row) | Bottom Row Function |
| 1 | Segment E | 16 | Digit 1 (Leftmost Anode) |
| 2 | Segment D | 17 | Digit 2 (Anode) |
| 3 | Decimal Point (DP) | 18 | Digit 3 (Anode) |
| 4 | Segment C | 19 | Digit 4 (Rightmost Anode) |
| 5 | Segment G | 20 | Segment A |
| 6 | No Connection (NC) | 21 | Segment B |
| 7 | No Connection (NC) | 22 | Segment F |
| 8 | No Connection (NC) | 23 | Colon Dot (Upper) |
| 9 | No Connection (NC) | 24 | Colon Dot (Lower) |
| 10 | No Connection (NC) | 25 | No Connection (NC) |
| 11 | No Connection (NC) | 26 | No Connection (NC) |
| 12 | No Connection (NC) | 27 | No Connection (NC) |
| 13 | No Connection (NC) | 28 | No Connection (NC) |
| 14 | No Connection (NC) | 29 | No Connection (NC) |
| 15 | No Connection (NC) | 30 | No Connection (NC) |
Dimensions
Specifications
| Parameter | Values |
|---|---|
| Digit Height | 0.28 inch (7.0 mm) |
| Number of Digits | 4-Digit Display |
| Display Color | Yellow |
| LED Material | GaAsP/GaP |
| Peak Wavelength (λp) | 585 nm |
| Circuit Configuration | Common Anode, Multiplexed |
| Forward Voltage(VF) | 2.1V (Typical), 2.6V (Max) @ IF = 20 mA |
| Continuous Forward Current | 20 mA per segment |
| Peak Forward Current | 60 mA (1/10 Duty Cycle, 0.1 ms Pulse Width) |
| Power Dissipation | 60 mW per segment |
| Luminous Intensity | 800 μcd (Min), 2400 μcd (Typ) @IF = 10 mA |
| Reverse Voltage (VR) | 5V (Maximum) |
| Operating Temperature | -35°C to +85°C |
| Storage Temperature | -35°C to +85°C |
Applications
- Industrial Process Control.
- Telecommunications & Networking.
- Test and Measurement Equipment.
- Transportation and Automotive.
- Retro-Electronic Restoration.
Package Contents
- 1x LTC-3822YCA2 Yellow 4 Digit Common Anode 7-Segment Display Module