# BL-HUB37A-AV-TRB

**BrtLed Bright LED Elec** · LED Indication - Discrete · 0402

BL-HUB37A-AV-TRB from BrtLed Bright LED Elec, in a 0402. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.


::adom-states{src="/adom/bl-hub37a-av-trb/render/states.json"}

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | K | passive | Cathode of the super red LED, identified by the cathode mark on the package; reverse voltage max 5 V. |
| 2 | A | passive | Anode of the super red LED; forward current max 20 mA (100 mA peak at 1/10 duty, 0.1 ms), Vf 2.0 V typ and 2.6 V max at 20 mA, so a current-limiting resistor is required. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | BrtLed Bright LED Elec |
| Package | 0402 |
| Category | Optoelectronics |
| Pins | 2 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Power Dissipation | Pd |  |  | 50 | mW | Ta=25℃ | 1 |
| Forward Current | IF |  |  | 20 | mA | Ta=25℃ | 1 |
| Peak Forward Current | IFP |  |  | 100 | mA | Pulse of 1/10 duty and 0.1msec width | 1 |
| Reverse Voltage | VR |  |  | 5 | V | Ta=25℃ | 1 |
| Operating Temperature | Topr | -40 |  | 85 | ℃ |  | 1 |
| Storage Temperature | Tstg | -40 |  | 85 | ℃ |  | 1 |
| Forward Voltage | Vf |  | 2 | 2.6 | V | IF=20mA | 2 |
| Luminous Intensity | Iv | 28 | 50 |  | mcd | IF=20mA | 2 |
| Reverse Current | IR |  |  | 100 | µA | VR=5V | 2 |
| Dominant Wave Length | λd | 627 |  | 637 | nm | IF=20mA | 2 |
| Luminous intensity bin limit tolerance |  | -15 |  | 15 | % | Tolerance for each Bin limit (Intensity bin table) | 4 |

## CAD (KiCad official)

- Symbol: `BL-HUB37A-AV-TRB`
- Footprint: `LED_SMD:LED_0402_1005Metric`
- 3D model: 0402 (KiCad packages3D, STEP)
- 3D model files: `bl-hub37a-av-trb-etched.step` / `bl-hub37a-av-trb-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bl-hub37a-av-trb.step` / `bl-hub37a-av-trb.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [BrtLed Bright LED Elec datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588884652719280128) (8 pp, sha256 `788b830d07071aa0`, retrieved 2026-10-17, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/bl-hub37a-av-trb-datasheet.pdf)