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SESD0201X1UN-0020-090
Public Made by Adomby adom
Littelfuse ESD And Surge Protection (TVS/ESD), DFN1006-2. 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
markdownSESD0201X1UN-0020-090
Littelfuse · ESD And Surge Protection (TVS/ESD) · DFN1006-2
SESD0201X1UN-0020-090 from Littelfuse, in a DFN1006-2. 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 | Terminal 1 of the unidirectional 0201 DFN device, shown in the bottom view and marked by the Pin 1 ID on the package drawing; the datasheet does not state its function or polarity. |
| 2 | 2 | passive | Terminal 2 of the unidirectional 0201 DFN device, shown in the bottom view; the datasheet does not state its function or polarity. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Littelfuse |
| Package | DFN1006-2 |
| 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 Current (tp=8/20μs) | IPP | 2 | A | tp=8/20μs | 2 | ||
| Operating Temperature | TOP | -55 | 125 | °C | 2 | ||
| Storage Temperature | TSTOR | -55 | 150 | °C | 2 | ||
| Input Capacitance | 0.2 | 0.25 | pF | Reverse Bias=0V, f = 3GHz | 2 | ||
| Reverse Working Voltage | 7 | V | 2 | ||||
| Reverse Leakage Current | IL | 25 | 50 | nA | @ VRWM=5.0V | 2 | |
| ESD Withstand Voltage IEC 61000-4-2 (Contact) | -20 | 20 | kV | IEC 61000-4-2 (Contact); datasheet prints ±20 in the Min column | 2 | ||
| ESD Withstand Voltage IEC 61000-4-2 (Air) | -20 | 20 | kV | IEC 61000-4-2 (Air); datasheet prints ±20 in the Min column | 2 | ||
| Peak Temperature (TP) | TP | 260 | °C | Pb-free reflow; do not exceed 260°C; printed as 260+0/-5 °C | 3 |
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 | Copper Alloy | Lead Plating Pre-Plated Frame Lead Material Copper Alloy | 3 |
CAD (KiCad official)
- Symbol:
SESD0201X1UN-0020-090 - Footprint:
Diode_SMD:D_SOD-882 - 3D model: DFN1006-2 (KiCad packages3D, STEP)
- 3D model files:
sesd0201x1un-0020-090-etched.step/sesd0201x1un-0020-090-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sesd0201x1un-0020-090.step/sesd0201x1un-0020-090.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Littelfuse datasheet (5 pp, sha256
7ac319426c902b7e, retrieved 2026-10-21, 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).