1N4448WT
Public Made by Adomby adom
Yangzhou Yangjie Elec Tech Switching Diodes, SOD-523(SC-79). Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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README
markdown1N4448WT
Yangzhou Yangjie Elec Tech · Switching Diodes · SOD-523(SC-79)
1N4448WT from Yangzhou Yangjie Elec Tech, in a SOD-523(SC-79). 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 | K | passive | Cathode: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Yangzhou Yangjie Elec Tech |
| Package | SOD-523(SC-79) |
| Category | Diodes |
| Pins | 2 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Reverse Leakage Current | IR1 | 25 | nA | VR=20V | 1 | ||
| Reverse Leakage Current | IR2 | 2.5 | uA | VR=75V | 1 | ||
| Capacitance | C | 4 | pF | VR=0V,f=1MHz | 1 | ||
| Reverse Recovery Time | Trr | 4 | ns | IF=IR=10mA，Irr=0.1*IR, RL=100Ω | 1 | ||
| Breakdown Voltage | VR | 75 | V | IR=5uA | 1 | ||
| Forward Voltage | VF | 0.62 | 0.72 | V | IF=5mA | 1 | |
| Forward Voltage | VF | 0.855 | V | IF=10mA | 1 | ||
| Forward Voltage | VF | 1 | V | IF=100mA | 1 | ||
| Forward Voltage | VF | 1.25 | V | IF=150mA | 1 | ||
| Non-Repetitive Peak Reverse Voltage | VRM | 100 | V | 1 | |||
| Repetitive peak reverse voltage | VRRM | 75 | V | 1 | |||
| Reverse voltage | VR | 75 | V | IR=100uA | 1 | ||
| Peak forward surge current | IFSM | 2 | A | Pulse width=1 us | 1 | ||
| Peak forward surge current | IFSM | 0.5 | A | Pulse width=1 s | 1 | ||
| Average forward current | IFAV | 250 | mA | 1 | |||
| Power dissipation | Ptot | 150 | mW | 1 | |||
| Maximum junction temperature | Tj | -55 | 150 | ℃ | 1 | ||
| Storage temperature range | Tstg | -55 | 150 | ℃ | 1 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | tin | ● Terminals: Tin plated leads, solderable per J-STD-002 and JESD22-B102 | 1 |
CAD (KiCad official)
- Symbol:
1N4448WT - Footprint:
Diode_SMD:D_SOD-523 - 3D model: SOD-523(SC-79) (KiCad packages3D, STEP)
- 3D model files:
1n4448wt-etched.step/1n4448wt-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);1n4448wt.step/1n4448wt.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Yangzhou Yangjie Elec Tech datasheet (4 pp, sha256
ba1705ddf5bbd90a, retrieved 2026-10-26, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarycathode-band convention(convention), consensusoff(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).