component
NUP2105LT1G
Public Made by Adomby adom
TECH PUBLIC 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
markdownNUP2105LT1G
TECH PUBLIC · ESD And Surge Protection (TVS/ESD) · SOT-23
NUP2105LT1G from TECH PUBLIC, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | IO1 | passive | Bidirectional TVS I/O line 1; one TVS diode connected between this pin and Pin 3 (common), VRWM = 24 V, VC = 33 V typ / 43 V max at Ipp = 1 A (8×20 µs pulse), CJ = 25 pF typ (VR = 0 V, f = 1 MHz, Pin 1 to Pin 2). |
| 2 | IO2 | passive | Bidirectional TVS I/O line 2; one TVS diode connected between this pin and Pin 3 (common), VRWM = 24 V, VC = 33 V typ / 43 V max at Ipp = 1 A (8×20 µs pulse), CJ = 25 pF typ (VR = 0 V, f = 1 MHz, Pin 1 to Pin 2). |
| 3 | GND | power_in | Common cathode / GND reference terminal shared by both bidirectional TVS diodes; VESD per IEC 61000-4-2 (Air) ±30 kV, (Contact) ±30 kV; peak pulse power 300 W (8/20 µs). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TECH PUBLIC |
| Package | SOT-23 |
| Category | Circuit Protection |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
NUP2105LT1G - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
nup2105lt1g-etched.step/nup2105lt1g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);nup2105lt1g.step/nup2105lt1g.glbare the bare package body. - Laser-etched variant:
nup2105lt1g-etched.step/nup2105lt1g-etched.glb, the same package body with the MPN marked on the die, in a toggleableAdom.LaserEtchgroup (Fusion-ready).
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TECH PUBLIC datasheet (4 pp, sha256
4b3d18a0b8e7d3ae, retrieved 2026-09-17, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-sonnet-4-6(vision), consensusclaude-opus-4-7(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).