LED DISPLAY 5X7 Dot Matrix LED Display 4CHAR 3.8MM RED HCMS-3902
LED DISPLAY 5X7 Dot Matrix LED Display 4CHAR 3.8MM RED HCMS-3902
Color:RED
| Parameter | Symbol | Condition | Min | Typ | Max | Unit |
| Forward Voltage | Vf | If=20mA | 1.8 | 2.3 | V | |
| Reverse Voltage | Vr | Ir=10uA | 5 | V | ||
| Luminous Intensty | Iv | If=20mA | 80 | 95 | mcd | |
| Spectrum With Of Half Value | λ | If=20mA | 20 | nm | ||
| Wavelength | Dλ | If=20mA | 620 | 625 | nm |
Absolute Maximum Ratings(Ta=25℃)
| Parameter | Symbol | Ratings | Unit |
| Forward Current(per dice) | Ipm | 20 | mA |
| Reverse Voltage(per dice) | Vr | 5 | V |
| Power Dissipation(per dice) | Pm | 80 | mW |
| Operating Temperature Range | Topr | -40~+85 | ℃ |
| Storage Temperature Range | Tstg | -40~+85 | ℃ |
| Solder Temperature(3 sec) | Th | 260 | ℃ |
LB-3902S(HCMS-3902) is an intelligent alphanumeric LED display module that integrates a character generator, driver circuitry, and a serial interface. It is compact, easy to drive, and requires no external character ROM, making it ideal for a wide range of small-scale character display applications.
1. Instrumentation Displays
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Digital voltmeters and ammeters
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Multifunction test equipment (e.g., oscilloscopes, signal generators)
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Human-Machine Interfaces (HMIs) in industrial controllers
2. Communication Devices
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Routers, modems, and switches for status display
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Telephony terminals and intercom systems for message output
3. Portable Devices
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Handheld terminals, digital scales, and portable testers
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Medical equipment (e.g., blood glucose meters, blood pressure monitors)
4. Consumer Electronics
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Front panel displays for audio systems, amplifiers, and DVD players
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Status displays in smart home systems
5. Industrial Automation & Process Control
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Machine status or fault code indicators
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Real-time production data output on factory lines
6. Embedded Development & Education
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Character display demos in MCU or FPGA development projects
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Educational lab equipment requiring simple displays
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