This document is the datasheet of BT-A51DRD red LED three digit seven segment display, include product size, function characteristics, external appearance, internal circuit and so on.
The BT‑A51DRD is a 14.20 mm (0.56 in) high three‑digit seven‑segment red LED display built with GaAlAs on GaAs substrate. It features continuous uniform segments, solid‑state reliability, and direct‑drive common anode configuration, complying with RoHS standards.
The datasheet lists absolute maximum ratings, electrical and optical characteristics, and typical electro‑optical curves, including power dissipation, forward current limits, voltage ranges, luminous intensity, and wavelength specifications for each segment.
| Power Dissipation Per Segment | 80 mW |
|---|---|
| Forward Current Per Segment | 30 mA |
| Peak Forward Current Per Segment (1 kHz duty) | 150 mA |
| Reverse Voltage Per Segment | 5 V |
| Operating Temperature Range | -40 °C to 80 °C |
| Forward Voltage Per Segment (typical) | 1.7 V – 2.5 V |
| Luminous Intensity Per Segment | 7.0 cd |
| Peak Wavelength | 660 nm |
| Dominant Wavelength Range | 638 nm – 648 nm |
| Spectral Line Half‑width | 20 nm |
The continuous forward current per segment is rated at 30 mA.
The device operates from –40 °C up to 80 °C.
Yes, the product contains no restricted substances and complies with RoHS.
Each digit is 14.20 mm (0.56 in) high.