component
CDSOT23-0502B
Public Made by Adomby adom
BOURNS ESD Protection Devices, SOT-23-3L. 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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Contents
README
markdownCDSOT23-0502B
BOURNS · ESD Protection Devices · SOT-23-3L
CDSOT23-0502B from BOURNS, in a SOT-23-3L. 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 | I/O1 | passive | Protected line 1 with bidirectional TVS clamp to pin 3, 5 V working peak reverse voltage, 6.0 V minimum breakdown at 1 mA, 15 pF max channel capacitance. |
| 2 | I/O2 | passive | Protected line 2 with bidirectional TVS clamp to pin 3, 5 V working peak reverse voltage, 6.0 V minimum breakdown at 1 mA, 15 pF max channel capacitance. |
| 3 | COMMON | passive | Common node of both bidirectional TVS diodes, tested against pins 1 and 2; the datasheet does not label it as ground. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | BOURNS |
| Package | SOT-23-3L |
| 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 |
|---|---|---|---|---|---|---|---|
| Peak Pulse Current (tp = 8/20µs) | IPPM | 8.5 | A | tp = 8/20µs | 1 | ||
| ESD per IEC 61000-4-2 (Air) | VESD | 22 | kV | per IEC 61000-4-2 (Air) | 1 | ||
| ESD per IEC 61000-4-2 (Contact) | VESD | 15 | kV | per IEC 61000-4-2 (Contact) | 1 | ||
| Operating Temperature | TOPR | -55 | 125 | ºC | 1 | ||
| Storage Temperature | TSTG | -55 | 150 | ºC | 1 | ||
| Minimum Reverse Breakdown Voltage | VBR | 6 | V | @ 1mA | 1 | ||
| Reverse Standoff Voltage | VM | 5 | V | 1 | |||
| Maximum Leakage Current | IL | 2.5 | µA | @ VWM | 1 | ||
| Maximum Clamping Voltage 1 | VCL1 | 8 | V | IPP=5 A, contact | 1 | ||
| Maximum Clamping Voltage 2 | VCL2 | 9 | V | IPP=7 A, contact | 1 | ||
| Max Channel Input Capacitance | CN | 15 | pF | @ 0 V, 1 MHz | 1 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | tin | This is a molded SOT23-3L package with lead free 100 % Matte Sn on the lead frame. It weighs approximately 8 mg and has a | 2 |
CAD (KiCad official)
- Symbol:
CDSOT23-0502B - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: SOT-23-3L, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.9750000000000001 mm tall, datasheet A, midpoint of min and max). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions come from the datasheet drawing where it was read and are defaults otherwise (see provenance.model_3d_generated), not the manufacturer's CAD (STEP)
- 3D model files:
cdsot23-0502b-etched.step/cdsot23-0502b-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cdsot23-0502b.step/cdsot23-0502b.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: BOURNS datasheet (4 pp, sha256
0693c6f88c67ef48, retrieved 2026-11-12, 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).