# NUF2042XV6T1G

**onsemi** · EMI/RFI Filters (LC, RC Networks) · SOT-563

NUF2042XV6T1G from onsemi, in a SOT-563. 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 | D1(i) | bidirectional | Inner-side connection of data line D1, part of the bidirectional EMI filter and ESD protection; the series resistor RS is 22 Ω typical (17.6 Ω min, 26.4 Ω max) for NUF2042XV6T1G. |
| 2 | GND | power_in | Ground reference pin for the device's ESD protection and termination network. |
| 3 | D2(i) | bidirectional | Inner-side connection of data line D2, part of the bidirectional EMI filter and ESD protection; the series resistor RS is 22 Ω typical (17.6 Ω min, 26.4 Ω max) for NUF2042XV6T1G. |
| 4 | D2(0) | bidirectional | Outer (connector-side) connection of data line D2 with ESD protection rated IEC61000-4-2 Level 4 (8 kV contact, 15 kV air); line capacitance is 42 pF typical (37.6 pF min, 56.4 pF max) measured at 2.5 V, 1 MHz. |
| 5 | VBUS | power_in | USB VBUS connection to the upstream port; the datasheet states no VBUS voltage limit, and Note 1 says pin 5 is grounded during the line-capacitance measurement. |
| 6 | D1(0) | bidirectional | Outer (connector-side) connection of data line D1 with ESD protection rated IEC61000-4-2 Level 4 (8 kV contact, 15 kV air); line capacitance is 42 pF typical (37.6 pF min, 56.4 pF max) measured at 2.5 V, 1 MHz. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | SOT-563 |
| Category | Filters |
| Pins | 6 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Breakdown voltage | VBR | 5.6 | 6.8 | 8 | V | @ 1 mA | 2 |
| Reverse leakage current | IR |  | 10 | 100 | nA | @ 3.3 V | 2 |
| Line capacitance |  | 37.6 | 42 | 56.4 | pF | Vdc = 2.5 V, f = 1 MHz; measured between pins 1, 3, 4, 6 and ground with pin 5 grounded (Note 1) | 2 |
| Series resistor | RS | 17.6 | 22 | 26.4 | Ω |  | 2 |
| Steady state power | PD |  |  | 225 | mW | TA = 25°C | 1 |
| Maximum junction temperature | TJ(max) |  |  | 125 | °C |  | 1 |
| Operating temperature range | TJ | -55 |  | 125 | °C |  | 1 |
| Storage temperature range | Tstg | -55 |  | 125 | °C |  | 1 |
| Lead solder temperature | TL |  |  | 260 | °C | 10 second duration | 1 |

## CAD (KiCad official)

- Symbol: `NUF2042XV6T1G`
- Footprint: `Package_TO_SOT_SMD:SOT-563`
- 3D model: SOT-563 (KiCad packages3D, STEP)
- 3D model files: `nuf2042xv6t1g-etched.step` / `nuf2042xv6t1g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `nuf2042xv6t1g.step` / `nuf2042xv6t1g.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [onsemi datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588881773253545984) (8 pp, sha256 `49d6678ad4570530`, retrieved 2026-10-17, 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](docs/nuf2042xv6t1g-datasheet.pdf)