# 1N4003W

**Shandong Jingdao Microelectronics** · Diodes - General Purpose · SOD-123FL

1N4003W from Shandong Jingdao Microelectronics, in a SOD-123FL. 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 | Cathode | passive | Cathode terminal of the 1N4003W glass-passivated surface-mount rectifier, rated for 1 A forward current and 200 V repetitive peak reverse voltage in this family datasheet. |
| 2 | Anode | passive | Anode terminal of the 1N4003W glass-passivated surface-mount rectifier, forming the forward-conduction path opposite the cathode. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Shandong Jingdao Microelectronics |
| Package | SOD-123FL |
| Category | Diodes |
| 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 |
|---|---|---|---|---|---|---|---|
| Maximum Repetitive Peak Reverse Voltage | VRRM |  |  | 200 | V | 1N4003W column | 1 |
| Maximum RMS Voltage | VRMS |  |  | 140 | V | 1N4003W column | 1 |
| Maximum DC Blocking Voltage | VDC |  |  | 200 | V | 1N4003W column | 1 |
| Maximum Average Forward Rectified Current | IF(AV) |  |  | 1 | A | at Tc = 125 °C | 1 |
| Peak Forward Surge Current | IFSM |  |  | 30 | A | 8.3 ms Single Half Sine Wave Superimposed on Rated Load | 1 |
| Maximum Instantaneous Forward Voltage | VF |  |  | 1.1 | V | at 1 A | 1 |
| Maximum DC Reverse Current | IR |  |  | 5 | μA | at Rated DC Blocking Voltage, Ta = 25 °C | 1 |
| Maximum DC Reverse Current | IR |  |  | 50 | μA | at Rated DC Blocking Voltage, Ta = 125 °C | 1 |
| Typical Junction Capacitance | Cj |  | 8 |  | pF | Measured at 1 MHz and applied reverse voltage of 4 V D.C | 1 |
| Typical Thermal Resistance | RθJA |  | 90 |  | °C/W |  | 1 |
| Operating and Storage Temperature Range | Tj, Tstg | -55 |  | 150 | °C |  | 1 |

## CAD (KiCad official)

- Symbol: `1N4003W`
- Footprint: `Diode_SMD:D_SOD-123F`
- 3D model: SOD-123FL (KiCad packages3D, STEP)
- 3D model files: `1n4003w-etched.step` / `1n4003w-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `1n4003w.step` / `1n4003w.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Shandong Jingdao Microelectronics datasheet](docs/1n4003w-datasheet.pdf) (3 pp, sha256 `cbdaecd9b631e7ec`, retrieved 2026-10-21, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-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/1n4003w-datasheet.pdf)