component
MMBD4448-TP
Public Made by Adomby adom
MCC(Micro Commercial Components) Switching Diodes, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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MMBD4448-TP
MCC(Micro Commercial Components) · Switching Diodes · SOT-23
MMBD4448-TP from MCC(Micro Commercial Components), in a SOT-23. 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 | A | passive | Diode anode, connected through the single internal diode to pin 3 in the Internal Structure drawing; the part is rated for 75V VRRM and 250mA average rectified output current. |
| 2 | NC | unconnected | No internal connection; the Internal Structure drawing shows this lower-right terminal with no connection to the diode. |
| 3 | K | passive | Diode cathode, the single top terminal in the Internal Structure drawing; the part is rated for 75V DC blocking voltage and 500mA forward continuous current. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | MCC(Micro Commercial Components) |
| Package | SOT-23 |
| 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 |
|---|---|---|---|---|---|---|---|
| Non-repetitive peak reverse voltage | VRM | 100 | V | 1 | |||
| Peak repetitive reverse voltage | VRRM | 75 | V | 1 | |||
| Working peak reverse voltage | VRWM | 75 | V | 1 | |||
| DC blocking voltage | VR | 75 | V | 1 | |||
| RMS reverse voltage | VR(RMS) | 53 | V | 1 | |||
| Forward continuous current | IFM | 500 | mA | 1 | |||
| Average rectified output current | Io | 250 | mA | 1 | |||
| Non-repetitive peak forward surge current | IFSM | 2 | A | t<=1.0s | 1 | ||
| Non-repetitive peak forward surge current | IFSM | 4 | A | t=1.0us | 1 | ||
| Power dissipation | Pd | 350 | mW | Note 2: terminals kept at ambient temperature | 1 | ||
| Thermal resistance junction to ambient | 357 | °C/W | Note 2: terminals kept at ambient temperature | 1 | |||
| Operating junction temperature range | -55 | 150 | °C | 1 | |||
| Storage temperature range | -55 | 150 | °C | 1 | |||
| Forward voltage | VFM | 0.62 | V | IF=5.0mA | 2 | ||
| Forward voltage | VFM | 0.72 | V | IF=5.0mA | 2 | ||
| Forward voltage | VFM | 0.855 | V | IF=10.0mA | 2 | ||
| Forward voltage | VFM | 1 | V | IF=100.0mA | 2 | ||
| Forward voltage | VFM | 1.25 | V | IF=150.0mA | 2 | ||
| Maximum peak reverse current | IRM | 2.5 | μA | VR=75V | 2 | ||
| Maximum peak reverse current | IRM | 30 | μA | VR=75V，Tj=150℃ | 2 | ||
| Maximum peak reverse current | IRM | 50 | μA | VR=25V，Tj=150℃ | 2 | ||
| Maximum peak reverse current | IRM | 25 | nA | VR=20V | 2 | ||
| Maximum junction capacitance | CJ | 4 | pF | VR=0.0V, f=1.0MHz | 2 | ||
| Maximum reverse recovery time | trr | 4 | ns | IF=10mA, IR=10mA, Irr=0.1*IR, RL=100Ω | 2 |
CAD (KiCad official)
- Symbol:
MMBD4448-TP - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
mmbd4448-tp-etched.step/mmbd4448-tp-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mmbd4448-tp.step/mmbd4448-tp.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MCC(Micro Commercial Components) datasheet (4 pp, sha256
e2e9f093aa7ff7de, retrieved 2026-10-17, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-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).
# MMBD4448-TP
**MCC(Micro Commercial Components)** · Switching Diodes · SOT-23
MMBD4448-TP from MCC(Micro Commercial Components), in a SOT-23. 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 | A | passive | Diode anode, connected through the single internal diode to pin 3 in the Internal Structure drawing; the part is rated for 75V VRRM and 250mA average rectified output current. |
| 2 | NC | unconnected | No internal connection; the Internal Structure drawing shows this lower-right terminal with no connection to the diode. |
| 3 | K | passive | Diode cathode, the single top terminal in the Internal Structure drawing; the part is rated for 75V DC blocking voltage and 500mA forward continuous current. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | MCC(Micro Commercial Components) |
| Package | SOT-23 |
| 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 |
|---|---|---|---|---|---|---|---|
| Non-repetitive peak reverse voltage | VRM | | | 100 | V | | 1 |
| Peak repetitive reverse voltage | VRRM | | | 75 | V | | 1 |
| Working peak reverse voltage | VRWM | | | 75 | V | | 1 |
| DC blocking voltage | VR | | | 75 | V | | 1 |
| RMS reverse voltage | VR(RMS) | | | 53 | V | | 1 |
| Forward continuous current | IFM | | | 500 | mA | | 1 |
| Average rectified output current | Io | | | 250 | mA | | 1 |
| Non-repetitive peak forward surge current | IFSM | | | 2 | A | t<=1.0s | 1 |
| Non-repetitive peak forward surge current | IFSM | | | 4 | A | t=1.0us | 1 |
| Power dissipation | Pd | | | 350 | mW | Note 2: terminals kept at ambient temperature | 1 |
| Thermal resistance junction to ambient | | | | 357 | °C/W | Note 2: terminals kept at ambient temperature | 1 |
| Operating junction temperature range | | -55 | | 150 | °C | | 1 |
| Storage temperature range | | -55 | | 150 | °C | | 1 |
| Forward voltage | VFM | 0.62 | | | V | IF=5.0mA | 2 |
| Forward voltage | VFM | | | 0.72 | V | IF=5.0mA | 2 |
| Forward voltage | VFM | | | 0.855 | V | IF=10.0mA | 2 |
| Forward voltage | VFM | | | 1 | V | IF=100.0mA | 2 |
| Forward voltage | VFM | | | 1.25 | V | IF=150.0mA | 2 |
| Maximum peak reverse current | IRM | | | 2.5 | μA | VR=75V | 2 |
| Maximum peak reverse current | IRM | | | 30 | μA | VR=75V，Tj=150℃ | 2 |
| Maximum peak reverse current | IRM | | | 50 | μA | VR=25V，Tj=150℃ | 2 |
| Maximum peak reverse current | IRM | | | 25 | nA | VR=20V | 2 |
| Maximum junction capacitance | CJ | | | 4 | pF | VR=0.0V, f=1.0MHz | 2 |
| Maximum reverse recovery time | trr | | | 4 | ns | IF=10mA, IR=10mA, Irr=0.1*IR, RL=100Ω | 2 |
## CAD (KiCad official)
- Symbol: `MMBD4448-TP`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `mmbd4448-tp-etched.step` / `mmbd4448-tp-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mmbd4448-tp.step` / `mmbd4448-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/8603260738807492608) (4 pp, sha256 `e2e9f093aa7ff7de`, retrieved 2026-10-17, 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/mmbd4448-tp-datasheet.pdf)