# US1MWG_R2_000A4

**PANJIT International** · Diodes - Fast Recovery Rectifiers · SMA

US1MWG_R2_000A4 from PANJIT International, in a SMA. 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 ultrafast rectifier; the color band on the package marks the cathode end, and the device is rated 1000 V peak reverse voltage (V RRM) for the US1MWG variant. |
| 2 | Anode | passive | Anode terminal of the ultrafast rectifier, rated up to 1 A average forward current (IF(AV)). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | PANJIT International |
| Package | SMA |
| 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 Recurrent Peak Reverse Voltage | VRRM |  |  | 1000 | V |  | 1 |
| Maximum RMS Voltage | VRMS |  |  | 700 | V |  | 1 |
| Maximum DC Blocking Voltage | VDC |  |  | 1000 | V |  | 1 |
| Maximum Average Forward Current | IF(AV) |  |  | 1 | A |  | 1 |
| Peak Forward Surge Current | IFSM |  |  | 30 | A | 8.3ms single half sine-wave superimposed on rated load | 1 |
| Maximum Forward Voltage | VF |  |  | 1.7 | V | at 1A | 1 |
| Maximum DC Reverse Current | IR |  |  | 10 | uA | at rated DC blocking voltage | 1 |
| Maximum Reverse Recovery Time | TRR |  |  | 100 | ns | Note 3: IF=0.5A, IR=1A, recover to 0.25A | 1 |
| Typical Junction Capacitance | CJ |  | 17 |  | pF |  | 1 |
| Typical Thermal Resistance, junction to ambient | RJA |  | 150 |  | °C/W | Note 1: mounted on FR4 PCB, single-sided copper, mini pad | 1 |
| Typical Thermal Resistance, junction to lead | RJL |  | 35 |  | °C/W | Note 2: mounted on FR4 PCB, single-sided copper, with 76.2 x 114.3mm copper pad area | 1 |
| Operating Junction and Storage Temperature Range | TJ,TSTG | -55 |  | 150 | °C |  | 1 |

## CAD (KiCad official)

- Symbol: `US1MWG_R2_000A4`
- Footprint: `Diode_SMD:D_SMA`
- 3D model: SMA (KiCad packages3D, STEP)
- 3D model files: `us1mwg-r2-000a4-etched.step` / `us1mwg-r2-000a4-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `us1mwg-r2-000a4.step` / `us1mwg-r2-000a4.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [PANJIT International datasheet](docs/us1mwg-r2-000a4-datasheet.pdf) (5 pp, sha256 `f2da417815adce42`, 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/us1mwg-r2-000a4-datasheet.pdf)