component
PACDN042Y3R
Public Made by Adomby adom
onsemi ESD And Surge Protection (TVS/ESD), SOT-23. 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
markdownPACDN042Y3R
onsemi · ESD And Surge Protection (TVS/ESD) · SOT-23
PACDN042Y3R from onsemi, in a SOT-23. 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 surge protection diode, to be connected to the node requiring transient voltage protection. |
| 2 | Cathode | passive | Cathode of the surge protection diode, to be connected to the node requiring transient voltage protection. |
| 3 | GND | power_in | Anode of the surge protection diodes, to be grounded. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | SOT-23 |
| 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 |
|---|---|---|---|---|---|---|---|
| Leakage Current | ILEAK | 1 | 100 | nA | VIN = 5.0 VDC, TA = 25°C | 3 | |
| Small Signal Clamp Voltage Positive Clamp | VSIG | 6.2 | 6.8 | 8 | V | I = 10 mA, TA = 25°C | 3 |
| Small Signal Clamp Voltage Negative Clamp | VSIG | -0.4 | -0.8 | -1.2 | V | I = −10 mA, TA = 25°C | 3 |
| ESD Withstand Voltage Human Body Model | VESD | -30 | 30 | kV | Human Body Model, MIL−STD−883, Method 3015 | 3 | |
| ESD Withstand Voltage Contact Discharge | VESD | -20 | 20 | kV | Contact Discharge per IEC 61000−4−2 Standard (Note 1) | 3 | |
| Operating Temperature | -40 | 85 | °C | 3 | |||
| Storage Temperature Range | -65 | 150 | °C | 3 | |||
| Package Power Dissipation | 0.225 | W | SOT23−3, SOT23−5, SOT23−6, SOT−143 package | 3 |
CAD (KiCad official)
- Symbol:
PACDN042Y3R - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
pacdn042y3r-etched.step/pacdn042y3r-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);pacdn042y3r.step/pacdn042y3r.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (14 pp, sha256
ad3782f02c7362b4, retrieved 2026-10-17, 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).