# CT-1005UPC-P4

**CHONGTIAN** · LED Indication - Discrete · 0402

CT-1005UPC-P4 from CHONGTIAN, 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/ct-1005upc-p4/render/states.json"}

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | K | passive | Cathode (marked "-" in the schematic symbol, green-marked end of the package); max reverse voltage VR is 5 V, with IR of 1 uA max at VR=5V. |
| 2 | A | passive | Anode (marked "+" in the schematic symbol); max continuous forward current IF is 20 mA (100 mA pulsed at 1/10 duty, 0.1 ms), with VF of 2.6 to 3.0 V at IF=5 mA. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | CHONGTIAN |
| 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 |
|---|---|---|---|---|---|---|---|
| Luminous intensity | IV | 83 |  | 144 | mcd | IF=5mA | 4 |
| Forward voltage | VF | 2.6 |  | 3 | V | IF=5mA | 4 |
| Reverse current | IR |  |  | 1 | uA | VR=5V | 4 |
| Forward DC current | IF |  |  | 20 | mA | Ta=25℃ | 3 |
| Peak forward pulse current | IFP |  |  | 100 | mA | Ta=25℃, 1/10 duty cycle, 0.1ms pulse width | 3 |
| Power dissipation | Pd |  |  | 70 | MW | Ta=25℃ | 3 |
| Reverse voltage | VR |  |  | 5 | V | Ta=25℃ | 3 |
| Operating ambient temperature | Topr | -30 |  | 85 | °C |  | 3 |
| Storage ambient temperature | Tstg | -40 |  | 90 | °C |  | 3 |
| Soldering temperature (reflow) | Tsol |  |  | 260 | °C | Reflow soldering, 10 s | 3 |
| Soldering temperature (manual) | Tsol |  |  | 300 | °C | Manual soldering, 3 s | 3 |
| Half-intensity viewing angle | 2θ1/2 |  | 120 |  | deg | IF=5mA | 4 |

## CAD (KiCad official)

- Symbol: `CT-1005UPC-P4`
- Footprint: `LED_SMD:LED_0402_1005Metric`
- 3D model: 0402 (KiCad packages3D, STEP)
- 3D model files: `ct-1005upc-p4-etched.step` / `ct-1005upc-p4-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ct-1005upc-p4.step` / `ct-1005upc-p4.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [CHONGTIAN datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8741352127244271616) (11 pp, sha256 `50998f3507a26e1e`, retrieved 2026-11-09, 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/ct-1005upc-p4-datasheet.pdf)