# DAN202U

**Changjing** · Switching Diodes · SOT-323

DAN202U from Changjing, in a SOT-323. 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 | A1 | passive | Anode of diode 1 in the common-cathode dual switching diode; reverse voltage 80 V max, forward current 300 mA max. |
| 2 | A2 | passive | Anode of diode 2 in the common-cathode dual switching diode; reverse voltage 80 V max, forward current 300 mA max. |
| 3 | K | passive | Common cathode of both diodes; DC blocking voltage 80 V, average rectified output current 100 mA. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| Package | SOT-323 |
| Category | Diodes |
| Pins | 3 |

## Electrical characteristics

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

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Reverse breakdown voltage | V(BR) | 80 |  |  | V | IR= 100μA | 1 |
| Reverse voltage leakage current | IR |  |  | 0.1 | μA | VR=70V | 1 |
| Forward voltage | VF |  |  | 1.2 | V | IF=100mA | 1 |
| Diode capacitance | CD |  |  | 3.5 | pF | VR=6V, f=1MHz | 1 |
| Reverse recovery time | trr |  |  | 4 | ns | VR=6V, IF=5mA | 1 |
| Non-Repetitive Peak Reverse Voltage | VRM |  |  | 80 | V |  | 1 |
| DC Blocking Voltage | VR |  |  | 80 | V |  | 1 |
| Forward Continuous Current | IFM |  |  | 300 | mA |  | 1 |
| Average Rectified Output Current | IO |  |  | 100 | mA |  | 1 |
| Power Dissipation | PD |  |  | 200 | mW |  | 1 |
| Junction Temperature | TJ |  |  | 150 | ℃ |  | 1 |
| Storage Temperature Range | TSTG | -55 |  | 150 | ℃ |  | 1 |
| Non-Repetitive Peak Forward Surge Current | IFSM |  |  | 2 | A | t=8.3ms | 1 |
| Thermal resistance, junction to ambient | RθJA |  |  | 625 | ℃/W |  | 1 |

## CAD (KiCad official)

- Symbol: `DAN202U`
- Footprint: `Package_TO_SOT_SMD:SOT-323_SC-70`
- 3D model: SOT-323 (KiCad packages3D, STEP)
- 3D model files: `dan202u-etched.step` / `dan202u-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `dan202u.step` / `dan202u.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Changjing datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586176576085614592) (4 pp, sha256 `75f2c6d4205e0638`, retrieved 2026-10-18, 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/dan202u-datasheet.pdf)