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SESD0201X1UN-0020-090

Public Made by Adom

by adom

Littelfuse ESD And Surge Protection (TVS/ESD), DFN1006-2. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SESD0201X1UN-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.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sesd0201x1un-0020-090.step / sesd0201x1un-0020-090.glb are 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, primary claude-haiku-5-5 (text), consensus claude-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).

Datasheet PDF