HDSP-3903 Avago Technologies Display (Other) In Stock
The Avago Technologies HDSP-3903 is a 1-digit, 8-segment, high-efficiency red LED display module in an 18-pin DIP package with common cathode configuration, featuring a 20.32 mm digit height, 40 mA maximum forward current, and IC-compatible drive for direct interface with standard logic. It is REACH-compliant and ideal for numeric readout in industrial and consumer equipment. From $2.00, in stock with worldwide shipping.
- Manufacturer
- Avago Technologies
- Package
- Other
- Pin Count
- 18
- Lifecycle
- ACTIVE
- Datasheet
- HDSP-3903 Datasheet PDF
- Category
- Display
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 1-digit 8-LED common cathode 7-segment display with 20.32 mm digit height and high-efficiency red output for clear numeric readout
- IC-compatible drive interface with 40 mA max forward current and 3.5 V max forward voltage allows direct connection to standard CMOS/TTL decoder drivers
- 18-pin DIP package with decimal point segment enables drop-in integration in breadboard prototypes and through-hole PCB designs without additional circuitry
Applications
The HDSP-3903 is used in industrial panel meters, laboratory instruments, and consumer appliances where a single-digit, high-efficiency red LED numeric readout is required. Its 20.32 mm digit height ensures readability at distances up to 3 meters in factory floor or bench-top settings, and the IC-compatible common cathode drive simplifies interfacing with BCD-to-7-segment decoder ICs such as the 74HC4511. Engineers also integrate this display in legacy electronic designs, educational kits, and test equipment where through-hole DIP components are preferred.
Specifications
| Pbfree Code | Yes |
| Reach Compliance Code | Compliant |
| YTEOL | 6 |
| Additional Feature | IC COMPATIBLE |
| Color | HIGH EFFICIENCY RED |
| Color@Wavelength | Red |
| Configuration | COMMON CATHODE, 1 DIGIT WITH DECIMAL POINT |
| Display Height | 20.32mm |
| Forward Current-Max | 0.04A |
| Forward Voltage-Max | 3.5V |
| JESD-609 Code | e1 |
| Number of Characters | 1 |
| Number of Functions | 1 |
| Optoelectronic Device Type | 7 SEG NUMERIC LED DISPLAY |
| Peak Wavelength | 635nm |
| Terminal Finish | Tin/Silver/Copper (Sn/Ag/Cu) |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8541.40.20.00 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the digit height and configuration of the HDSP-3903 and how does it affect readability at distance?
The HDSP-3903 features a 20.32 mm (0.8 inch) digit height in a single-digit common cathode configuration with decimal point. At this height, the display is legible at distances up to approximately 3 meters in typical indoor lighting, making it suitable for panel meters, counter displays, and instrument front panels where the operator views the readout from across a workbench or control station.
How should the HDSP-3903 be driven to stay within its maximum forward current rating?
Each segment of the HDSP-3903 has a maximum forward current of 40 mA and maximum forward voltage of 3.5 V. When driven from a 5 V logic supply, a current-limiting resistor of approximately 47 ohms per segment (for ~30 mA segment drive) should be used to prevent exceeding the 40 mA rating. For multiplexed drive schemes, peak current can be higher during the on-phase, but the average must remain within device thermal limits.
Which decoder or driver ICs are directly compatible with the HDSP-3903 common cathode configuration?
The HDSP-3903 common cathode architecture is directly compatible with BCD-to-7-segment decoder drivers such as the 74HC4511 (CMOS, active-high outputs) and the SN7447A (TTL, active-low for common anode, so a common cathode alternative like SN7448 is appropriate). The IC-compatible drive characteristic means no additional buffer or level-shift circuitry is needed when the supply voltage is 5 V and segment current is limited to 40 mA maximum per segment.
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About Avago Technologies
Avago Technologies is a leading electronic component manufacturer. FindMyChip sources Avago Technologies ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
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