component
1N4148WS-HE3-18
Public Made by Adomby adom
Vishay Intertech Switching Diodes, SOD-323. Pinout cross-checked by two models against the datasheet, 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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README
markdown1N4148WS-HE3-18
Vishay Intertech · Switching Diodes · SOD-323
1N4148WS-HE3-18 from Vishay Intertech, in a SOD-323. 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, identified by the cathode bar marking on the package; reverse voltage VR 75 V and repetitive peak reverse voltage VRRM 100 V. |
| 2 | A | passive | Anode; average rectified current IF(AV) 150 mA and surge forward current IFSM 350 A limit of 350 mA (t < 1 s). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Vishay Intertech |
| Package | SOD-323 |
| 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 | Tamb = 25 °C | 1 | ||
| Repetitive peak reverse voltage | VRRM | 100 | V | Tamb = 25 °C | 1 | ||
| Average rectified current | IF(AV) | 150 | mA | half wave rectification with resistive load, f ≥ 50 Hz | 1 | ||
| Surge forward current | IFSM | 350 | mA | t < 1 s and Tj = 25 °C | 1 | ||
| Power dissipation | Ptot | 200 | mW | Tamb = 25 °C | 1 | ||
| Thermal resistance junction to ambient air | RthJA | 650 | K/W | Tamb = 25 °C | 1 | ||
| Junction temperature | Tj | 150 | °C | 1 | |||
| Storage temperature range | Tstg | -65 | 150 | °C | 1 | ||
| Operating temperature range | Top | -55 | 150 | °C | 1 | ||
| Forward voltage | VF | 1 | V | IF = 10 mA | 2 | ||
| Forward voltage | VF | 1.2 | V | IF = 100 mA | 2 | ||
| Leakage current | IR | 25 | nA | VR = 20 V | 2 | ||
| Leakage current | IR | 5 | μA | VR = 75 V | 2 | ||
| Leakage current | IR | 100 | μA | VR = 100 V | 2 | ||
| Leakage current | IR | 50 | μA | VR = 20 V, Tj = 150 °C | 2 | ||
| Diode capacitance | CD | 4 | pF | VF = VR = 0 V | 2 | ||
| Voltage rise when switching ON | Vfr | 2.5 | V | Tested with 50 mA pulses, tp = 0.1 μs, rise time < 30 ns, fp = (5 to 100) kHz | 2 | ||
| Reverse recovery time | trr | 4 | ns | IF = 10 mA, iR = 1 mA, VR = 6 V, RL = 100 Ω | 2 |
CAD (KiCad official)
- Symbol:
1N4148WS-HE3-18 - Footprint:
Diode_SMD:D_SOD-323 - 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files:
1n4148ws-he3-18-etched.step/1n4148ws-he3-18-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);1n4148ws-he3-18.step/1n4148ws-he3-18.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Vishay Intertech datasheet (5 pp, sha256
d50077fb95ddc008, retrieved 2026-10-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text), consensusclaude-sonnet-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).