# 1N4148SOD-323

**Shenzhen Jinkaisheng Elec** · Switching Diodes · SOD-323

1N4148SOD-323 from Shenzhen Jinkaisheng Elec, in a SOD-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 | K | passive | Cathode, the banded end of the package; the diode withstands VRRM 75 V repetitive peak reverse voltage (VRSM 100 V non-repetitive) and the band indicates cathode. |
| 2 | A | passive | Anode, the unbanded end of the package; continuous forward current IO is 150 mA, repetitive peak IFRM 300 mA and surge IFSM 2 A (1 us pulse). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Shenzhen Jinkaisheng Elec |
| Package | SOD-323 |
| 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 |
|---|---|---|---|---|---|---|---|
| Breakdown Voltage | BV | 100 |  |  | Volts | IR=100µA | 1 |
| Reverse Leakage Current | IR |  |  | 25 | nA | VR=20V | 1 |
| Reverse Leakage Current | IR |  |  | 5 | µA | VR=75V | 1 |
| Forward Voltage | VF |  |  | 1 | Volts | IF=10mA | 1 |
| Reverse Recovery Time | TRR |  |  | 4 | nS | IF=10mA, IR=60mA, RL=100Ω, IRR=1mA | 1 |
| Capacitance | C |  |  | 4 | pF | VR=0V, f=1MHZ | 1 |
| Power Dissipation | PD |  |  | 200 | mW |  | 1 |
| Storage Temperature Range | TSTG | -65 |  | 150 | °C |  | 1 |
| Operating Junction Temperature | TJ |  |  | 150 | °C |  | 1 |
| Non-Repetitive Peak Reverse Voltage | VRSM |  |  | 100 | V |  | 1 |
| Repetitive Peak Reverse Voltage | VRRM |  |  | 75 | V |  | 1 |
| Repetitive Peak Forward Current | IFRM |  |  | 300 | mA |  | 1 |
| Continuous Forward Current | IO |  |  | 150 | mA |  | 1 |
| Peak Forward Surge Current | IFSM |  |  | 2 | A | Pulse Width=1us | 1 |

## 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 |  Matte Tin(Sn) Lead Finish  Band Indicates Cathode Electrical Characteristics TA = 25°C unless otherwise noted DEVICE MARKING CODE: Device Type Device Marking | 1 |

## CAD (KiCad official)

- Symbol: `1N4148SOD-323`
- Footprint: `Diode_SMD:D_SOD-323`
- 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files: `1n4148sod-323-etched.step` / `1n4148sod-323-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `1n4148sod-323.step` / `1n4148sod-323.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Shenzhen Jinkaisheng Elec datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589040458483830784) (4 pp, sha256 `e271f5839ba07628`, retrieved 2026-10-23, 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/1n4148sod-323-datasheet.pdf)