component
1N4148W-MS
Public Made by Adomby adom
MSKSEMI Switching Diodes, SOD-123. 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
markdown1N4148W-MS
MSKSEMI · Switching Diodes · SOD-123
1N4148W-MS from MSKSEMI, 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 marked-band end of the SOD-123 body; the diode blocks up to VR = 75 V (VRM = 100 V peak) when this pin is positive relative to the anode. |
| 2 | A | passive | Anode; forward current up to IF(AV) = 150 mA average flows into this pin, with VF of 1 V max at 50 mA and 1.25 V max at 150 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | MSKSEMI |
| 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 Breakdown Voltage | V(BR)R | 75 | V | at IR = 1 µA | 3 | ||
| Forward Voltage | VF | 0.715 | V | at IF = 1 mA | 3 | ||
| Forward Voltage | VF | 0.855 | V | at IF = 10 mA | 3 | ||
| Forward Voltage | VF | 1 | V | at IF = 50 mA | 3 | ||
| Forward Voltage | VF | 1.25 | V | at IF = 150 mA | 3 | ||
| Peak Reverse Current | IR | 1 | µA | at VR = 75 V | 3 | ||
| Peak Reverse Current | IR | 25 | nA | at VR = 20 V | 3 | ||
| Peak Reverse Current | IR | 50 | µA | at VR = 75 V, TJ = 150 °C | 3 | ||
| Peak Reverse Current | IR | 30 | µA | at VR = 25 V, TJ = 150 °C | 3 | ||
| Total Capacitance | CT | 2 | pF | at VR = 0 V, f = 1 MHz | 3 | ||
| Reverse Recovery Time | trr | 4 | ns | at Irr = 0.1 X IR, IF = IR = 10 mA, RL = 100 Ω | 3 | ||
| Peak Reverse Voltage | VRM | 100 | V | 2 | |||
| Reverse Voltage | VR | 75 | V | 2 | |||
| Average Rectified Forward Current | IF(AV) | 150 | mA | 2 | |||
| Non-repetitive Peak Forward Surge Current | IFSM | 2 | A | at t = 1 µs | 2 | ||
| Power Dissipation | Ptot | 400 | mW | 2 | |||
| Junction Temperature | Tj | 150 | °C | 2 | |||
| Storage Temperature Range | Tstg | -65 | 150 | °C | 2 | ||
| Thermal Resistance from Junction to Ambient Air | RθJA | 312 | °C/W | 2 |
CAD (KiCad official)
- Symbol:
1N4148W-MS - Footprint:
Diode_SMD:D_SOD-123F - 3D model: SOD-123 (KiCad packages3D, STEP)
- 3D model files:
1n4148w-ms-etched.step/1n4148w-ms-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);1n4148w-ms.step/1n4148w-ms.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MSKSEMI datasheet (6 pp, sha256
ffa3cfe5dacce15b, retrieved 2026-10-19, 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).