component
MMBD4448V
Public Made by Adomby adom
CBI Switching Diodes, SOT-563. 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
markdownMMBD4448V
CBI · Switching Diodes · SOT-563
MMBD4448V from CBI, in a SOT-563. 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 (marked +), the forward current path to pin 6 with VRRM 80 V and IFM 500 mA continuous. |
| 2 | NC | unconnected | No internal connection. |
| 3 | K2 | passive | Cathode of diode 2 (marked −), the forward current path from pin 4 with VRRM 80 V and IFM 500 mA continuous. |
| 4 | A2 | passive | Anode of diode 2 (marked +), the forward current path to pin 3 with VRRM 80 V and IFM 500 mA continuous. |
| 5 | NC | unconnected | No internal connection. |
| 6 | K1 | passive | Cathode of diode 1 (marked −), the forward current path from pin 1 with VRRM 80 V and IFM 500 mA continuous. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | CBI |
| Package | SOT-563 |
| 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 |
|---|---|---|---|---|---|---|---|
| Breakdown voltage | V(BR) | 80 | V | IR=2.5 μA | 1 | ||
| Forward voltage | VF1 | 0.62 | 0.72 | V | IF=5mA | 1 | |
| Forward voltage | VF2 | 0.855 | V | IF=10mA | 1 | ||
| Forward voltage | VF3 | 1 | V | IF=100mA | 1 | ||
| Forward voltage | VF4 | 1.25 | V | IF=150mA | 1 | ||
| Reverse current | IR1 | 0.1 | μA | VR=70V | 1 | ||
| Reverse current | IR2 | 25 | nA | VR=20V | 1 | ||
| Capacitance between terminals | CT | 3.5 | pF | VR=6V, f=1MHz | 1 | ||
| Reverse recovery time | trr | 4 | ns | IF=IR=10mA, Irr=0.1XIR, RL=100Ω | 1 | ||
| Non-Repetitive Peak Reverse Voltage | VRM | 100 | V | 1 | |||
| Peak Repetitive Reverse Voltage | VRRM | 80 | V | 1 | |||
| Working Peak Reverse Voltage | VRWM | 80 | V | 1 | |||
| DC Blocking Voltage | VR | 80 | V | 1 | |||
| RMS Reverse Voltage | VR(RMS) | 57 | 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=8.3ms | 1 | ||
| Power Dissipation | Pd | 150 | mW | 1 | |||
| Thermal Resistance Junction to Ambient | RθJA | 833 | ℃/W | 1 | |||
| Operation Junction and Storage Temperature Range | Tj,TSTG | -55 | 150 | ℃ | 1 |
CAD (KiCad official)
- Symbol:
MMBD4448V - Footprint:
Package_TO_SOT_SMD:SOT-563 - 3D model: SOT-563 (KiCad packages3D, STEP)
- 3D model files:
mmbd4448v-etched.step/mmbd4448v-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mmbd4448v.step/mmbd4448v.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: CBI datasheet (3 pp, sha256
d64d992668fa6f2a, retrieved 2026-10-16, 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).