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WS03D5-B
Public Made by Adomby adom
Wayon ESD And Surge Protection (TVS/ESD), SOD-523. 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
markdownWS03D5-B
Wayon · ESD And Surge Protection (TVS/ESD) · SOD-523
WS03D5-B from Wayon, in a SOD-523. 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 | 1 | passive | One terminal of the single-line TVS that protects one I/O or power line, with a 3.3V working voltage and 360W peak pulse power (8/20µs); the datasheet does not state whether this pin is the anode or cathode. |
| 2 | 2 | passive | The other terminal of the single-line TVS that protects one I/O or power line, with a 3.3V working voltage and 360W peak pulse power (8/20µs); the datasheet does not state whether this pin is the anode or cathode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Wayon |
| Package | SOD-523 |
| Category | Circuit Protection |
| 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 |
|---|---|---|---|---|---|---|---|
| Operating Temperature | TJ | -55 | 125 | ℃ | 2 | ||
| Storage Temperature | TSTG | -55 | 150 | ℃ | 2 | ||
| Peak Pulse Power | PPP | 360 | Watts | tp =8/20μs | 2 | ||
| Peak Pulse Current | Ipp | 30 | A | tp =8/20μs | 2 | ||
| Reverse Stand-Off Voltage | VRWM | 3.3 | V | 2 | |||
| Reverse Breakdown Voltage | VBR | 4 | 6.5 | V | IT=1mA | 2 | |
| Reverse Leakage Current | IR | 500 | nA | VRWM=3.3V,T=25℃ | 2 | ||
| Clamping Voltage | VC | 9 | 12 | V | IPP=30A,tp=8/20μs | 2 | |
| Junction Capacitance | Cj | 60 | 100 | pF | VR = 0V, f = 1MHz | 2 | |
| Dynamic Resistance | RDYN | 0.08 | Ω | TLP=0.2/100ns | 2 | ||
| ESD Clamping Voltage (4A TLP) | VC | 5.4 | V | IPP = 4A, tp = 0.2/100ns(TLP) | 2 | ||
| ESD Clamping Voltage (16A TLP) | VC | 6.3 | V | IPP = 16A, tp = 0.2/100ns (TLP) | 2 |
CAD (KiCad official)
- Symbol:
WS03D5-B - Footprint:
Diode_SMD:D_SOD-523 - 3D model: SOD-523 (KiCad packages3D, STEP)
- 3D model files:
ws03d5-b-etched.step/ws03d5-b-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ws03d5-b.step/ws03d5-b.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Wayon datasheet (5 pp, sha256
dbf5334723d2d24b, retrieved 2026-10-21, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-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).