component
CDSOT23-T03
Public Made by Adomby adom
BOURNS ESD And Surge Protection (TVS/ESD), SOT-23-3. 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
markdownCDSOT23-T03
BOURNS · ESD And Surge Protection (TVS/ESD) · SOT-23-3
CDSOT23-T03 from BOURNS, in a SOT-23-3. 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 | Unidirectional TVS terminal tied internally to pin 2 and drawn on the anode side of the diode in the block diagram; the device has VWM 3.3 V and VBR min 4.0 V at 1 mA. |
| 2 | 2 | passive | Unidirectional TVS terminal tied internally to pin 1 and drawn on the anode side of the diode in the block diagram, so it can protect a second line. |
| 3 | 3 | passive | Common terminal at the cathode side of the unidirectional TVS diode in the block diagram, with 500 W peak pulse power (8/20 µs) and ±30 kV max ESD. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | BOURNS |
| Package | SOT-23-3 |
| Category | Circuit Protection |
| Pins | 3 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Minimum Breakdown Voltage | VBR | 4 | V | @ 1 mA | 1 | ||
| Maximum Working Peak Voltage | VWM | 3.3 | V | 1 | |||
| Maximum Clamping Voltage (VC @ IP = 1 A) | VF | 7 | V | @ IP = 1 A (1) | 1 | ||
| Maximum Clamping Voltage (8/20 µs) | VF | 10.9 | V | @ 8/20 µs, VC = IPP (1), @ 43 A | 1 | ||
| Maximum Leakage Current | ID | 125 | µA | @ VWM | 1 | ||
| ESD Protection Contact - Min. | ESD | -8 | 8 | kV | per IEC 61000-4-2, contact | 1 | |
| ESD Protection Contact - Max. | ESD | -30 | 30 | kV | per IEC 61000-4-2, contact | 1 | |
| ESD Protection Air - Min. | ESD | -15 | 15 | kV | per IEC 61000-4-2, air | 1 | |
| ESD Protection Air - Max. | ESD | -30 | 30 | kV | per IEC 61000-4-2, air | 1 | |
| Operating Temperature | TJ | -55 | 150 | ºC | 1 | ||
| Storage Temperature | TSTG | -55 | 150 | ºC | 1 | ||
| Typical Capacitance - Unidirectional | Cj(SD) | 500 | pF | @ 0 V, 1 MHz | 1 | ||
| Peak Pulse Power | PPP | 500 | W | tp @ 8/20 µs (2) | 1 | ||
| Forward Voltage | VF | 1.5 | V | @ 100 mA, 300 µs - Square Wave (3) | 1 |
CAD (KiCad official)
- Symbol:
CDSOT23-T03 - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: SOT-23-3 (KiCad packages3D, STEP)
- 3D model files:
cdsot23-t03-etched.step/cdsot23-t03-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cdsot23-t03.step/cdsot23-t03.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: BOURNS datasheet (5 pp, sha256
789e9bb8e9af3179, retrieved 2026-10-16, 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).