# BAT54SWTHE3-TP

**MCC Micro Commercial Components** · Schottky Diodes · SOT-323

BAT54SWTHE3-TP from MCC Micro Commercial Components, 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 the first Schottky diode of the series pair (BAT54SWTHE3, marking KL8); 30V maximum DC blocking voltage, 200mA average forward current. |
| 2 | K2 | passive | Cathode of the second Schottky diode of the series pair; 30V maximum DC blocking voltage, 200mA average forward current. |
| 3 | K1/A2 | passive | Common center node joining the cathode of the first diode and the anode of the second diode in the series configuration. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | MCC Micro Commercial Components |
| 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 |
|---|---|---|---|---|---|---|---|
| Maximum Reverse Breakdown Voltage | V(BR) | 30 |  |  | V |  | 1 |
| Maximum DC Reverse Current at Rated DC Blocking Voltage | IR |  |  | 2 | μA | VR = 25V | 1 |
| Maximum Forward Voltage | VF |  |  | 240 | mV | IF=0.1mA | 1 |
| Maximum Forward Voltage | VF |  |  | 320 | mV | IF=1.0mA | 1 |
| Maximum Forward Voltage | VF |  |  | 400 | mV | IF=10mA | 1 |
| Maximum Forward Voltage | VF |  |  | 500 | mV | IF=30mA | 1 |
| Maximum Forward Voltage | VF |  |  | 800 | mV | IF=100mA | 1 |
| Maximum Reverse Recovery Time | trr |  |  | 5 | ns | IF=IR=10mA; Irr=0.1×IR, RL=100Ω | 1 |
| Maximum Junction Capacitance | CJ |  |  | 10 | pF | Measured at 1.0MHz, VR=1.0V, TA= 25 °C | 1 |
| Maximum Recurrent Peak Reverse Voltage |  |  |  | 30 | V |  | 1 |
| Maximum RMS Voltage |  |  |  | 21 | V |  | 1 |
| Maximum DC Blocking Voltage | VR |  |  | 30 | V |  | 1 |
| Average Forward Current | IF(AV) |  |  | 200 | mA |  | 1 |
| Peak Forward Surge Current | IFSM |  |  | 600 | mA | 8.3ms | 1 |
| Repetitive Peak Forward Current | IFRM |  |  | 300 | mA | tp≤1s; Duty Cycle≤50% | 1 |
| Power Dissipation | Pd |  |  | 200 | mW | TA= 25 °C | 1 |
| Operating Junction Temperature Range |  | -55 |  | 125 | °C |  | 1 |
| Storage Temperature Range |  | -55 |  | 150 | °C |  | 1 |
| Thermal Resistance Junction to Ambient |  |  | 500 |  | °C/W | Junction to Ambient | 1 |

## CAD (KiCad official)

- Symbol: `BAT54SWTHE3-TP`
- Footprint: `Package_TO_SOT_SMD:SOT-323_SC-70`
- 3D model: SOT-323 (KiCad packages3D, STEP)
- 3D model files: `bat54swthe3-tp-etched.step` / `bat54swthe3-tp-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bat54swthe3-tp.step` / `bat54swthe3-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/8603065910294949888) (3 pp, sha256 `3c533a7280e1b83a`, retrieved 2026-10-21, 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/bat54swthe3-tp-datasheet.pdf)