component
MMBD4148DW
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
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownMMBD4148DW
ST Semtech · Switching Diodes · SOT-363
MMBD4148DW 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 | Anode | passive | Anode terminal, listed as pin 1 in the SOT-363 pin assignment; device-level limits are Reverse Voltage VR 75 V and Average Rectified Forward Current IF(AV) 200 mA. |
| 2 | Anode | passive | Anode terminal, listed as pin 2 in the SOT-363 pin assignment; device-level limits are Reverse Voltage VR 75 V and Average Rectified Forward Current IF(AV) 200 mA. |
| 3 | Anode | passive | Anode terminal, listed as pin 3 in the SOT-363 pin assignment; device-level limits are Reverse Voltage VR 75 V and Average Rectified Forward Current IF(AV) 200 mA. |
| 4 | Cathode | passive | Cathode terminal, listed as pin 4 in the SOT-363 pin assignment; device-level limits are Reverse Voltage VR 75 V and Average Rectified Forward Current IF(AV) 200 mA. |
| 5 | Cathode | passive | Cathode terminal, listed as pin 5 in the SOT-363 pin assignment; device-level limits are Reverse Voltage VR 75 V and Average Rectified Forward Current IF(AV) 200 mA. |
| 6 | Cathode | passive | Cathode terminal, listed as pin 6 in the SOT-363 pin assignment; device-level limits are Reverse Voltage VR 75 V and Average Rectified Forward Current IF(AV) 200 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ST Semtech |
| 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 |
|---|---|---|---|---|---|---|---|
| Peak Reverse Voltage | VRM | 100 | V | 1 | |||
| Reverse Voltage | VR | 75 | V | 1 | |||
| Average Rectified Forward Current | IF(AV) | 200 | mA | 1 | |||
| Forward Continuous Current | IFM | 300 | mA | 1 | |||
| Non-Repetitive Peak Forward Current | IFSM | 2 | A | t = 1 µs | 1 | ||
| Non-Repetitive Peak Forward Current | IFSM | 1 | A | t = 1 s | 1 | ||
| Power Dissipation | Ptot | 200 | mW | 1 | |||
| Thermal Resistance, Junction to Ambient | RθJA | 625 | ℃/W | 1 | |||
| Operating and Storage Temperature Range | Tj, Tstg | -65 | 150 | ℃ | 1 | ||
| Reverse Breakdown Voltage | V(BR)R | 75 | V | IR = 100 μA | 1 | ||
| Forward Voltage | VF | 0.715 | V | IF = 1 mA | 1 | ||
| Forward Voltage | VF | 0.855 | V | IF = 10 mA | 1 | ||
| Forward Voltage | VF | 1 | V | IF = 50 mA | 1 | ||
| Forward Voltage | VF | 1.25 | V | IF = 150 mA | 1 | ||
| Peak Reverse Current | IR | 25 | nA | VR = 20 V | 1 | ||
| Peak Reverse Current | IR | 1 | μA | VR = 75 V | 1 | ||
| Peak Reverse Current | IR | 30 | μA | VR = 25 V, Tj = 150℃ | 1 | ||
| Peak Reverse Current | IR | 50 | μA | VR = 75 V, Tj = 150℃ | 1 | ||
| Total Capacitance | CT | 2 | pF | VR = 0 V, f = 1 MHz | 1 | ||
| Reverse Recovery Time | trr | 4 | ns | IF = 10 mA, Irr = 0.1 X IR, RL = 100 Ω, VR = 6 V | 1 |
CAD (KiCad official)
- Symbol:
MMBD4148DW - Footprint:
Package_TO_SOT_SMD:SOT-363_SC-70-6 - 3D model: SOT-363 (KiCad packages3D, STEP)
- 3D model files:
mmbd4148dw-etched.step/mmbd4148dw-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mmbd4148dw.step/mmbd4148dw.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ST Semtech datasheet (3 pp, sha256
2c287c95df0c6f43, retrieved 2026-10-18, 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).