# DY-IR204T

**TONYU** · Infrared LED Emitters · LED_D3.0mm

DY-IR204T from TONYU, in a LED_D3.0mm. 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/dy-ir204t/render/states.json"}

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | Cathode | passive | Cathode of the infrared emitting diode; reverse voltage max 5 V, reverse current max 10 μA at VR=5 V. |
| 2 | Anode | passive | Anode of the infrared emitting diode; forward current max 100 mA (1.0 A peak, pulse width ≤100 μs, duty ≤1%), VF 0.8-1.5 V at IF=20 mA, with a series protection resistor recommended. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TONYU |
| Package | LED_D3.0mm |
| 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 |
|---|---|---|---|---|---|---|---|
| Forward voltage | VF | 0.8 |  | 1.5 | V | IF=20mA | 3 |
| Forward voltage | VF |  | 1.3 | 1.85 | V | IF=100mA, pulse width ≤100 μs, duty ≤1% | 3 |
| Reverse current | IR |  |  | 10 | μA | VR=5V | 3 |
| Radiant intensity | Ee | 7.8 |  | 24 | mW/sr | IF=20mA | 3 |
| Radiant intensity bin M | Ee | 7.8 |  | 12.5 | mW/sr | IF=20mA, bin M | 3 |
| Radiant intensity bin N | Ee | 11 |  | 17.6 | mW/sr | IF=20mA, bin N | 3 |
| Radiant intensity bin P | Ee | 15 |  | 24 | mW/sr | IF=20mA, bin P | 3 |
| Forward current | IF |  |  | 100 | mA |  | 6 |
| Peak forward current | IFP |  |  | 1 | A | Pulse width ≤100μs and duty ≤1% | 6 |
| Reverse voltage | VR |  |  | 5 | V |  | 6 |
| Power dissipation | Pd |  |  | 150 | mW |  | 6 |
| Operating temperature | Tamb | -25 |  | 80 | ℃ |  | 6 |
| Storage temperature | Tstg | -35 |  | 85 | ℃ |  | 6 |
| Soldering temperature | Tsol |  |  | 260 | ℃ | Wave soldering, 3mm from physical body, ≤3 s | 6 |

## Materials and finish

As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).

| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts |  | tin | The kinked tooling scrape easily the pin of LED, where the LED bracket is rusting easily, especial expose it in moist ar. To decrease the LED bracket rust, advise using plated tin LED bracket. | 8 |

## CAD (KiCad official)

- Symbol: `DY-IR204T`
- Footprint: `LED_THT:LED_D3.0mm`
- 3D model: LED_D3.0mm (KiCad packages3D, STEP)

## Provenance

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

- **Datasheet:** [TONYU datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8758072430780784640) (8 pp, sha256 `cc7c12c3d75c593e`, retrieved 2026-11-06, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **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/dy-ir204t-datasheet.pdf)