component
BSD5A181V35
Public Made by Adomby adom
BORN 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
markdownBSD5A181V35
BORN · ESD And Surge Protection (TVS/ESD) · SOD-523
BSD5A181V35 from BORN, 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 | K | passive | Cathode of the unidirectional TVS diode, on the cathode-band side of the package and connected to the protected line, with VRWM of 18 V and VBR of 19.8 V (min) at 1 mA. |
| 2 | A | passive | Anode of the unidirectional TVS diode, normally connected to ground, with a clamping voltage of 27 V (max) at IPP = 8 A (8/20 µs). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | BORN |
| 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 |
|---|---|---|---|---|---|---|---|
| Peak Pulse Power (tp = 8/20μs) | PPP | 200 | Watts | tp =8/20μs | 2 | ||
| Peak Pulse Current (tp = 8/20μs) (note1) | Ipp | 8 | A | tp =8/20μs | 2 | ||
| ESD per IEC 61000-4-2 (Air) | VESD | 15 | kV | IEC 61000-4-2 air discharge | 2 | ||
| ESD per IEC 61000-4-2 (Contact) | VESD | 8 | kV | IEC 61000-4-2 contact discharge | 2 | ||
| Lead Soldering Temperature | TL | 260 | ℃ | 10 seconds | 2 | ||
| Junction Temperature | TJ | -55 | 150 | ℃ | 2 | ||
| Storage Temperature | Tstg | -55 | 150 | ℃ | 2 | ||
| Reverse Stand-Off Voltage | VRWM | 18 | V | 2 | |||
| Reverse Breakdown Voltage | VBR | 19.8 | V | IT=1mA | 2 | ||
| Reverse Leakage Current | IR | 1 | uA | VRWM=18V,T=25℃ | 2 | ||
| Clamping Voltage | VC | 27 | V | IPP=8A,tp=8/20μs | 2 | ||
| Junction Capacitance | Cj | 45 | pF | VR = 0V, f = 1MHz | 2 |
CAD (KiCad official)
- Symbol:
BSD5A181V35 - Footprint:
Diode_SMD:D_SOD-523 - 3D model: SOD-523 (KiCad packages3D, STEP)
- 3D model files:
bsd5a181v35-etched.step/bsd5a181v35-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bsd5a181v35.step/bsd5a181v35.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: BORN datasheet (4 pp, sha256
abf215df980d5f82, retrieved 2026-10-22, 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).