component
PESD3V3U1UT
Public Made by Adomby adom
Nexperia 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
markdownPESD3V3U1UT
Nexperia · ESD And Surge Protection (TVS/ESD) · SOT-23
PESD3V3U1UT from Nexperia, 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 | K1 | passive | Cathode of the ESD protection diode; diode capacitance Cd is specified from pin 1 to pin 2 (0.6 pF typ, 1.5 pF max at f = 1 MHz, VR = 0 V). |
| 2 | K2 | passive | Cathode of the compensation diode, which combined with the ESD diode gives the ultra low device capacitance. |
| 3 | CA | passive | Common anode shared by the ESD protection and compensation diodes; the datasheet states pin 3 is not connected in the two-device anti-parallel applications (Figs. 6 and 7). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Nexperia |
| 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 |
|---|---|---|---|---|---|---|---|
| reverse standoff voltage | VRWM | 3.3 | V | Tamb = 25 °C | 4 | ||
| breakdown voltage | VBR | 5.8 | 6.4 | 6.9 | V | IR = 5 mA; Tamb = 25 °C | 4 |
| reverse leakage current | IRM | 0.25 | 2 | µA | VRWM = 3.3 V; Tamb = 25 °C | 4 | |
| diode capacitance | Cd | 0.6 | 1.5 | pF | f = 1 MHz; VR = 0 V; Tamb = 25 °C | 4 | |
| clamping voltage (IPP = 1 A) | VCL | 9 | V | IPP = 1 A; Tamb = 25 °C | 4 | ||
| clamping voltage (IPPM = 5 A) | VCL | 20 | V | IPPM = 5 A; Tamb = 25 °C | 4 | ||
| differential resistance | Rdiff | 400 | Ω | IR = 1 mA; Tamb = 25 °C | 4 | ||
| rated peak pulse power | PPPM | 80 | W | 3 | |||
| rated peak pulse current | IPPM | 5 | A | tp = 8/20 µs | 3 | ||
| junction temperature | Tj | 150 | °C | 3 | |||
| ambient temperature | Tamb | -65 | 150 | °C | 3 | ||
| storage temperature | Tstg | -65 | 150 | °C | 3 | ||
| electrostatic discharge voltage, contact discharge | VESD | 30 | kV | IEC 61000-4-2; contact discharge | 3 | ||
| electrostatic discharge voltage, air discharge | VESD | 15 | kV | IEC 61000-4-2; air discharge | 3 | ||
| electrostatic discharge voltage, human body model | VESD | 10 | kV | MIL-STD-883; human body model (HBM) | 3 |
CAD (KiCad official)
- Symbol:
PESD3V3U1UT - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
pesd3v3u1ut-etched.step/pesd3v3u1ut-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);pesd3v3u1ut.step/pesd3v3u1ut.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Nexperia datasheet (11 pp, sha256
ca78656bfd04102e, retrieved 2026-10-13, tier: manufacturer) - 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).