# ESD5V3U4RRS

**UMW** · ESD And Surge Protection (TVS/ESD) · SOT-363

ESD5V3U4RRS from UMW, in a SOT-363. 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 | CH1 | passive | ESD/surge protection channel 1 (I/O line), rated for IEC 61000-4-2 ±15 kV contact and ±20 kV air discharge and IEC 61000-4-5 5 A (8/20 µs), with 5 V reverse working voltage. |
| 2 | GND | power_in | Ground reference pin for the ESD protection array. |
| 3 | CH2 | passive | ESD/surge protection channel 2 (I/O line), rated for IEC 61000-4-2 ±15 kV contact and ±20 kV air discharge and IEC 61000-4-5 5 A (8/20 µs), with 5 V reverse working voltage. |
| 4 | CH3 | passive | ESD/surge protection channel 3 (I/O line), rated for IEC 61000-4-2 ±15 kV contact and ±20 kV air discharge and IEC 61000-4-5 5 A (8/20 µs), with 5 V reverse working voltage. |
| 5 | VDD | power_in | Supply/reference pin of the protection array; the datasheet specifies a low operating voltage of 5 V (VRWM = 5 V) but does not explicitly define this pin's function. |
| 6 | CH4 | passive | ESD/surge protection channel 4 (I/O line), rated for IEC 61000-4-2 ±15 kV contact and ±20 kV air discharge and IEC 61000-4-5 5 A (8/20 µs), with 5 V reverse working voltage. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | UMW |
| Package | SOT-363 |
| 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 (8/20μs) | PPK |  |  | 70 | W | 8/20μs | 1 |
| Peak Pulse Current (8/20µs) | IPP |  |  | 5 | A | 8/20µs | 1 |
| ESD per IEC 61000-4-2 (Air) | VESD | -20 |  | 20 | kV | IEC 61000-4-2 air discharge | 1 |
| ESD per IEC 61000-4-2 (Contact) | VESD | -15 |  | 15 | kV | IEC 61000-4-2 contact discharge | 1 |
| Junction Temperature Range | TJ | -55 |  | 125 | °C |  | 1 |
| Storage Temperature Range | TSTG | -55 |  | 150 | °C |  | 1 |

## CAD (KiCad official)

- Symbol: `ESD5V3U4RRS`
- Footprint: `Package_TO_SOT_SMD:SOT-363_SC-70-6`
- 3D model: SOT-363 (KiCad packages3D, STEP)
- 3D model files: `esd5v3u4rrs-etched.step` / `esd5v3u4rrs-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `esd5v3u4rrs.step` / `esd5v3u4rrs.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [UMW datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8789919535459913728) (6 pp, sha256 `113b845a7ffef644`, retrieved 2026-10-18, 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/esd5v3u4rrs-datasheet.pdf)