# US1Q-TP

**MCC(Micro Commercial Components)** · Fast Recovery / High Efficiency Diodes · SMA(DO-214AC)

US1Q-TP from MCC(Micro Commercial Components), in a SMA(DO-214AC). 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 1 A ultra fast rectifier, marked by the cathode mark on the SMA outline; the datasheet gives a 1200 V class device rating. |
| 2 | Anode | passive | Anode terminal of the 1 A ultra fast rectifier, opposite the cathode in the internal structure and graphic symbol. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | MCC(Micro Commercial Components) |
| Package | SMA(DO-214AC) |
| 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 |
|---|---|---|---|---|---|---|---|
| Operating Junction Temperature Range | TJ | -55 |  | 150 | oC |  | 2 |
| Storage Temperature Range | Tstg | -55 |  | 150 | oC |  | 2 |
| Forward Voltage | VF |  |  | 1.9 | V | IF=1A;TJ=25°C | 2 |
| Reverse Current | IR |  |  | 5 | uA | at Rated VR;TJ=25°C | 2 |
| Reverse Current | IR |  |  | 100 | uA | at Rated VR;TJ=125°C | 2 |
| Reverse Recovery Time | trr |  |  | 75 | nS | IF=0.5A; IR=1.0A; Irr=0.25A;TJ=25°C | 2 |
| Junction Capacitance | CJ |  | 8 |  | pF | VR=4V;f=1MHz;TJ=25°C | 2 |
| Thermal Resistance from Junction to Lead | Rth(J-L) |  | 25 |  | oC/W | Note 1 | 2 |
| Thermal Resistance from Junction to Ambient | Rth(J-A) |  | 75 |  | oC/W | Note 1 | 2 |

## CAD (KiCad official)

- Symbol: `US1Q-TP`
- Footprint: `Diode_SMD:D_SMA`
- 3D model: SMA(DO-214AC) (KiCad packages3D, STEP)
- 3D model files: `us1q-tp-etched.step` / `us1q-tp-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `us1q-tp.step` / `us1q-tp.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [MCC(Micro Commercial Components) datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8682539573064245248) (4 pp, sha256 `882657f89ca85bb9`, retrieved 2026-10-17, 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/us1q-tp-datasheet.pdf)