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1N5819WS S4
Public Made by Adomby adom
JSMSEMI Schottky 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
markdown1N5819WS S4
JSMSEMI · Schottky Diodes · SOD-323
1N5819WS S4 from JSMSEMI, 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 | Cathode | passive | Cathode of the Schottky diode; 1N5819WS (marking S4) is rated for 40V peak repetitive reverse voltage and 350mA forward continuous current. |
| 2 | Anode | passive | Anode of the Schottky diode; forward voltage is 0.37V typical at IF=20mA and 0.60V at IF=200mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | JSMSEMI |
| 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 Breakdown Voltage | V(BR)R | 40 | V | IR=10μA | 1 | ||
| Forward voltage | VF | 0.37 | V | IF=20mA | 1 | ||
| Forward voltage | VF | 0.6 | V | IF=200mA | 1 | ||
| Reverse current | IRM | 5 | μA | VR=30V | 1 | ||
| Capacitance between terminals | CT | 50 | pF | VR=0,f=1MHz | 1 | ||
| Reverse Recovery Time | trr | 10 | ns | IR=IF=200mA, Irr=0.1*IR, RL=100Ω | 1 | ||
| Peak Repetitive Reverse Voltage / Working Peak / DC Reverse Voltage | VRRM, VRWM, VR | 40 | V | Ta=25°C | 1 | ||
| RMS Reverse Voltage | VR(RMS) | 28 | V | Ta=25°C | 1 | ||
| Forward Continuous Current | IF | 350 | mA | Ta=25°C | 1 | ||
| Repetitive Peak Forward Current | IFRM | 1.5 | A | t≤1.0s | 1 | ||
| Power Dissipation | Pd | 400 | mW | Ta=25°C | 1 | ||
| Thermal Resistance Junction to Ambient | RθjA | 300 | ℃/W | 1 | |||
| Storage temperature | Tstg | -65 | 125 | ℃ | 1 |
CAD (KiCad official)
- Symbol:
1N5819WS S4 - Footprint:
Diode_SMD:D_SOD-323 - 3D model: SOD-323 (KiCad packages3D, STEP)
- 3D model files:
1n5819ws-s4-etched.step/1n5819ws-s4-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);1n5819ws-s4.step/1n5819ws-s4.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: JSMSEMI datasheet (2 pp, sha256
b4e9a87e96af8bf3, 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).