# BAT54JW

**MSKSEMI** · Schottky Diodes · SOT-363

BAT54JW from MSKSEMI, in a SOT-363. 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 (diode 1 to pin 6), 30 V max reverse voltage and 200 mA forward continuous current. |
| 2 | NC/2 | passive | Pin 2 is shown in the BAT54JW diagram as a straight connection to pin 5 with no diode in the path. |
| 3 | A2 | passive | Anode of the second Schottky diode (diode 2 to pin 4), 30 V max reverse voltage and 200 mA forward continuous current. |
| 4 | K2 | passive | Cathode of the second Schottky diode, connected to anode pin 3. |
| 5 | 5 | passive | Pin 5 is shown in the BAT54JW diagram as a straight connection to pin 2 with no diode in the path. |
| 6 | K1 | passive | Cathode of the first Schottky diode, connected to anode pin 1. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | MSKSEMI |
| Package | SOT-363 |
| Category | Diodes |
| Pins | 6 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Repetitive Peak Reverse Voltage | VRRM |  |  | 30 | V |  | 2 |
| Peak Working Reverse Voltage | VRWM |  |  | 30 | V |  | 2 |
| DC Blocking Voltage | VR |  |  | 30 | V |  | 2 |
| Forward Continuous Current | IO |  |  | 200 | mA |  | 2 |
| Repetitive Peak Forward Current | IFRM |  |  | 300 | mA |  | 2 |
| Non-repetitive Peak Forward Surge Current | IFSM |  |  | 600 | mA | @t=8.3ms | 2 |
| Power Dissipation | PD |  |  | 200 | mW |  | 2 |
| Thermal Resistance From Junction To Ambient | RΘJA |  |  | 500 | ℃/W |  | 2 |
| Operating Junction Temperature Range | Tj | -40 |  | 125 | ℃ |  | 2 |
| Storage Temperature Range | Tstg | -55 |  | 150 | ℃ |  | 2 |
| Reverse voltage | V(BR) | 30 |  |  | V | IR=100μA | 3 |
| Reverse current | IR |  |  | 2 | μA | VR=25V | 3 |
| Forward voltage | VF |  |  | 320 | mV | IF=1mA | 3 |
| Forward voltage | VF |  |  | 400 | mV | IF=10mA | 3 |
| Forward voltage | VF |  |  | 500 | mV | IF=30mA | 3 |
| Forward voltage | VF |  |  | 1000 | mV | IF=100mA | 3 |
| Total capacitance | Ctot |  |  | 10 | pF | VR=1V,f=1MHz | 3 |
| Reverse recovery time | trr |  |  | 5 | ns | IF= IR=10mA, Irr=0.1×IR, RL=100Ω | 3 |

## CAD (KiCad official)

- Symbol: `BAT54JW`
- Footprint: `Package_TO_SOT_SMD:SOT-363_SC-70-6`
- 3D model: SOT-363 (KiCad packages3D, STEP)
- 3D model files: `bat54jw-etched.step` / `bat54jw-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bat54jw.step` / `bat54jw.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [MSKSEMI datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590452118517030912) (5 pp, sha256 `bac32b30c0e85e92`, retrieved 2026-10-18, 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/bat54jw-datasheet.pdf)