# NUP5120X6T1G-ES

**ElecSuper** · ESD And Surge Protection (TVS/ESD) · SOT-563

NUP5120X6T1G-ES from ElecSuper, 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 | IO | bidirectional | Connect to I/O line 1 for ESD and transient protection; the datasheet gives no pin-specific voltage or current limit beyond the device ratings. |
| 2 | GND | power_in | Connect to ground; this is the clamp return path for the protected I/O lines. |
| 3 | IO | bidirectional | Connect to I/O line 2 for ESD and transient protection; the datasheet gives no pin-specific voltage or current limit beyond the device ratings. |
| 4 | IO | bidirectional | Connect to I/O line 3 for ESD and transient protection; the datasheet gives no pin-specific voltage or current limit beyond the device ratings. |
| 5 | VCC | power_in | Connect to the Vcc supply rail; the datasheet gives no supply voltage range for this pin in the text provided. |
| 6 | IO | bidirectional | Connect to I/O line 4 for ESD and transient protection; the datasheet gives no pin-specific voltage or current limit beyond the device ratings. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | ElecSuper |
| Package | SOT-563 |
| Category | Circuit Protection |
| 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 |
|---|---|---|---|---|---|---|---|
| Peak pulse power (tp=8/20us)@25℃ | Ppk |  |  | 60 | W | tp=8/20us@25℃ | 2 |
| Peak pulse current (tp=8/20us)@25℃ | IPP |  |  | 4 | A | tp=8/20us@25℃ | 2 |
| ESD (IEC61000-4-2 air discharge) @25℃ | VESD |  |  | 17 | kV | IEC61000-4-2 air discharge @25℃ | 2 |
| ESD (IEC61000-4-2 contact discharge) @25℃ | VESD |  |  | 12 | kV | IEC61000-4-2 contact discharge @25℃ | 2 |
| Junction temperature | TJ |  |  | 150 | ℃ |  | 2 |
| Operating temperature | TOP | -40 |  | 125 | ℃ |  | 2 |
| Storage temperature | TSTG | -55 |  | 150 | ℃ |  | 2 |
| Lead temperature | TL |  |  | 260 | ℃ |  | 2 |
| Reverse stand-off voltage | VRWM |  |  | 5 | V |  | 3 |
| Reverse Breakdown Voltage | VBR | 6 |  |  | V | IT= 1mA | 3 |
| Reverse Leakage Current | IR |  |  | 1 | uA | VRWM=5V | 3 |
| Peak Pulse Current | IPP |  |  | 4 | A | TP=8/20us@25℃ | 3 |
| Clamping Voltage (IPP=1.0A) | VCL |  | 8.5 | 10 | V | IPP=1.0A; TP=8/20us | 3 |
| Clamping Voltage (IPP=4.0A) | VCL |  | 12 | 15 | V | IPP=4.0A; TP=8/20us | 3 |
| Junction capacitance, I/O pins to ground | CJ |  | 0.6 | 0.8 | pF | I/O pins to ground; VR=0V; f = 1MHz | 3 |
| Junction capacitance, between I/O pins | CJ |  | 0.3 | 0.4 | pF | Between I/O pins; VR=0V; f = 1MHz | 3 |

## CAD (KiCad official)

- Symbol: `NUP5120X6T1G-ES`
- Footprint: `Package_TO_SOT_SMD:SOT-563`
- 3D model: SOT-563 (KiCad packages3D, STEP)
- 3D model files: `nup5120x6t1g-es-etched.step` / `nup5120x6t1g-es-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `nup5120x6t1g-es.step` / `nup5120x6t1g-es.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [ElecSuper datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590922814482563072) (6 pp, sha256 `f78aa66cdf2ab569`, 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/nup5120x6t1g-es-datasheet.pdf)