# DY-PT204-6B

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

DY-PT204-6B 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-pt204-6b/render/states.json"}

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | E | passive | Emitter of the NPN phototransistor; the datasheet states VECO max 5 V (emitter-collector voltage). |
| 2 | C | passive | Collector of the NPN phototransistor; the datasheet states VCEO max 30 V and collector current Ic max 20 mA. |

## 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 |
|---|---|---|---|---|---|---|---|
| Collector-Emitter Voltage | VCEO |  |  | 30 | V |  | 6 |
| Emitter-Collector Voltage | VECO |  |  | 5 | V |  | 6 |
| Collector Current | Ic |  |  | 20 | mA |  | 6 |
| Power Dissipation | Pd |  |  | 75 | mW |  | 6 |
| Operation temperature | Tamb | -25 |  | 85 | ℃ |  | 6 |
| Storage temperature | Tstg | -40 |  | 100 | ℃ |  | 6 |
| Soldering temperature | Tsol |  |  | 260 | ℃ | Wave soldering, 3mm out of physical body, ≤3S | 6 |
| Collector-Emitter Breakdown Voltage | BVceo | 30 |  |  | V | Ic=100uA, Ee=0mW/c㎡ | 4 |
| Emitter-Collector Breakdown Voltage | BVeco | 5 |  |  | V | IE=100uA, Ee=0mW/c㎡ | 4 |
| Collector-Emitter Saturation Voltage | Vce(sat) |  |  | 0.4 | V | Ic=2mA, Ee=1mW/c㎡ | 4 |
| Collector Dark Current | ICEO |  |  | 100 | nA | Ee=1mW/c㎡, VCE=20V | 4 |
| On State Collector Current | Ic(on) | 1.77 |  | 5.07 | mA | Ee=0mW/c㎡, VCE=5V | 4 |

## 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 air. To decrease the LED bracket rust, advise using plated tin LED bracket. | 8 |

## CAD (KiCad official)

- Symbol: `DY-PT204-6B`
- 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/8588892118923927552) (9 pp, sha256 `3311cfea05990911`, 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-pt204-6b-datasheet.pdf)