# ZGY20001

**Chau Light** · Photointerrupters - Slot Type - Transistor Output · DIP-4

ZGY20001 from Chau Light, in a DIP-4. 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.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | Anode | passive | Anode of the infrared emitting diode; absolute maximum continuous forward current 50 mA, reverse voltage 5 V, forward voltage 1.2 V typ. at IF=20 mA. |
| 2 | Cathode | passive | Cathode of the infrared emitting diode (940 nm peak wavelength), connected to the return of the LED drive current. |
| 3 | Emitter | passive | Emitter of the NPN silicon phototransistor; emitter-collector voltage limited to 5 V maximum. |
| 4 | Collector | passive | Collector of the NPN silicon phototransistor; collector-emitter voltage 30 V maximum and collector current 20 mA maximum. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Chau Light |
| Package | DIP-4 |
| Category | Optoelectronics |
| Pins | 4 |

## Electrical characteristics

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

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Input emitter power dissipation | Pd |  |  | 75 | mW | Free air temperature 25°C (note *1) | 3 |
| Input emitter reverse voltage | VR |  |  | 5 | V |  | 3 |
| Input emitter forward current, continuous | IF |  |  | 50 | mA |  | 3 |
| Input emitter peak forward current | IFP |  |  | 1 | A | Pulse width≦100μs, Duty cycle=1% (note *2) | 3 |
| Output detector power dissipation | Pd |  |  | 75 | mW | Free air temperature 25°C (note *1) | 3 |
| Collector-emitter voltage | VCEO |  |  | 30 | V |  | 3 |
| Emitter-collector voltage | VECO |  |  | 5 | V |  | 3 |
| Collector current (ON) | IC(ON) |  |  | 20 | mA |  | 3 |
| Operating temperature | Topr | -25 |  | 85 | °C |  | 3 |
| Storage temperature | Tstg | -40 |  | 85 | °C |  | 3 |
| Lead soldering temperature | Tsol |  |  | 260 | °C | 2mm from form body for 5 seconds (note *3) | 3 |
| Forward voltage | VF |  | 1.2 | 1.5 | V | IF=20mA, Ta=25°C | 3 |
| Forward voltage | VF |  | 1.4 | 1.85 | V | IF=100mA (note *2) | 3 |
| Forward voltage | VF |  | 2.6 | 4 | V | IF=1A (note *2) | 3 |
| Reverse current | IR |  |  | 10 | μA | VR=5V | 3 |
| Dark current (collector-emitter) | ICEO |  |  | 100 | nA | Ee=0mW/cm2, VCE=20V | 3 |
| Collector-emitter saturation voltage | VCE(SAT) |  |  | 0.4 | V | IC=2mA, Ee=1mW/cm2 | 3 |
| Collector current (ON) | IC(ON) | 0.6 |  |  | mA | VCE=2V, IF=10mA | 3 |

## 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 |
|---|---|---|---|---|
| housing | thermoplastic |  | thermoplastic housing.The phototransistor receives radiation from the IR | 2 |

## CAD (KiCad official)

- Symbol: `ZGY20001`
- Footprint: `Package_DIP:DIP-4_W7.62mm`
- 3D model: DIP-4 (KiCad packages3D, STEP)
- 3D model files: `zgy20001-etched.step` / `zgy20001-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `zgy20001.step` / `zgy20001.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Chau Light datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8755861964982116352) (8 pp, sha256 `e0194dc6edbda506`, retrieved 2026-10-16, 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/zgy20001-datasheet.pdf)