component
MMBD4448SDW
Public Made by Adomby adom
ST Semtech Switching Diodes, SOT-363. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdownMMBD4448SDW
ST Semtech · Switching Diodes · SOT-363
MMBD4448SDW from ST Semtech, 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 diode 1; device limits are reverse voltage 80 V and forward continuous current 300 mA at Ta = 25 °C. |
| 2 | C1 | passive | Cathode of diode 1; device limits are reverse voltage 80 V and forward continuous current 300 mA at Ta = 25 °C. |
| 3 | AC2 | passive | Common anode/cathode terminal for diode 2 as labelled AC2; device limits are reverse voltage 80 V and forward continuous current 300 mA at Ta = 25 °C. |
| 4 | A2 | passive | Anode of diode 2; device limits are reverse voltage 80 V and forward continuous current 300 mA at Ta = 25 °C. |
| 5 | C2 | passive | Cathode of diode 2; device limits are reverse voltage 80 V and forward continuous current 300 mA at Ta = 25 °C. |
| 6 | AC1 | passive | Common anode/cathode terminal for diode 1 as labelled AC1; device limits are reverse voltage 80 V and forward continuous current 300 mA at Ta = 25 °C. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ST Semtech |
| Package | SOT-363 |
| Category | Diodes |
| Pins | 6 |
CAD (KiCad official)
- Symbol:
MMBD4448SDW - Footprint:
Package_TO_SOT_SMD:SOT-363_SC-70-6 - 3D model: SOT-363 (KiCad packages3D, STEP)
- 3D model files:
mmbd4448sdw-etched.step/mmbd4448sdw-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mmbd4448sdw.step/mmbd4448sdw.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ST Semtech datasheet (3 pp, sha256
f781793f4b1a2007, retrieved 2026-10-09, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).