component
1N4148WQ
Public Made by Adomby adom
Yangzhou Yangjie Elec Tech Switching Diodes, SOD-123. 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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PCB Footprint
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Datasheet
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Contents
README
markdown1N4148WQ
Yangzhou Yangjie Elec Tech · Switching Diodes · SOD-123
1N4148WQ from Yangzhou Yangjie Elec Tech, in a SOD-123. 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-123 |
| 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 Voltage | VR | 75 | V | Ta=25℃ | 1 | ||
| Repetitive Peak Reverse Voltage | VRRM | 100 | V | Ta=25℃ | 1 | ||
| Average Forward Current | IFAV | 150 | mA | Ta=25℃ | 1 | ||
| Repetitive Peak Forward Current | IFRM | 300 | mA | Ta=25℃ | 1 | ||
| Peak Forward Surge Current | IFSM | 2 | A | Pulse width=1 us | 1 | ||
| Peak Forward Surge Current | IFSM | 1 | A | Pulse width=1 s | 1 | ||
| Power Dissipation | Ptot | 400 | mW | 1 | |||
| Maximum Junction Temperature | Tj | -55 | 150 | ℃ | 1 | ||
| Storage Temperature Range | Tstg | -55 | 150 | ℃ | 1 | ||
| Thermal Resistance Junction to Ambient | RthJA | 315 | K/W | 1 | |||
| Forward Voltage | VF | 0.715 | V | IF=1mA | 2 | ||
| Forward Voltage | VF | 0.855 | V | IF=10mA | 2 | ||
| Forward Voltage | VF | 1 | V | IF=50mA | 2 | ||
| Forward Voltage | VF | 1.25 | V | IF=150mA | 2 | ||
| Reverse Current | IR | 0.025 | μA | VR=20V | 2 | ||
| Reverse Current | IR | 1 | μA | VR=75V | 2 | ||
| Breakdown Voltage | VR | 75 | V | IR=10μA | 2 | ||
| Diode Capacitance | CD | 4 | pF | VR=VF=0V, f =1MHZ | 2 | ||
| Reverse Recovery Time | trr | 4 | ns | IF=10mA,Irr=0.1IR,RL=100Ω | 2 |
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:
1N4148WQ - Footprint:
Diode_SMD:D_SOD-123F - 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files:
1n4148wq-etched.step/1n4148wq-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);1n4148wq.step/1n4148wq.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Yangzhou Yangjie Elec Tech datasheet (5 pp, sha256
64e0fc9dbf0d1894, retrieved 2026-10-17, 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).