# SET23A15L02

**UMW** · ESD And Surge Protection (TVS/ESD) · SOT-23

SET23A15L02 from UMW, in a SOT-23. 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 | I/O1 | passive | TVS I/O line 1 (cathode of the first diode), protected against ESD, EFT and lightning surges; working voltage 15V (VRWM), 1µA max leakage at VR=15V. |
| 2 | I/O2 | passive | TVS I/O line 2 (cathode of the second diode), protected against ESD, EFT and lightning surges; working voltage 15V (VRWM), 1µA max leakage at VR=15V. |
| 3 | GND | power_in | Common anode/ground reference for both TVS diodes; for bidirectional protection of one line, use pins 1 and 2 as the line and pin 3 as the common. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | UMW |
| Package | SOT-23 |
| Category | Circuit Protection |
| Pins | 3 |

## Electrical characteristics

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

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Reverse Stand-Off Voltage | VRWM |  |  | 15 | V |  | 4 |
| Reverse Breakdown Voltage | VBR | 16.7 |  |  | V | IBR=1mA | 4 |
| Reverse Leakage Current | IR |  |  | 1 | µA | VR=15V, Each I/O pin | 4 |
| Clamping voltage (tp=8/20μs) | VC |  |  | 24 | V | tp=8/20μs, IPP=1A | 4 |
| Clamping voltage (tp=8/20μs) | VC |  |  | 30 | V | tp=8/20μs, IPP=10A | 4 |
| Off state junction capacitance | CJ |  | 90 |  | pF | 0Vdc, f=1MHz, between I/O pins and GND | 4 |
| ESD voltage (Contact discharge) | VESD | -8 |  | 8 | kV |  | 2 |
| ESD voltage (Air discharge) | VESD | -15 |  | 15 | kV |  | 2 |
| Storage & junction temperature range | TJ,TSTG | -55 |  | 150 | °C |  | 2 |

## CAD (KiCad official)

- Symbol: `SET23A15L02`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `set23a15l02-etched.step` / `set23a15l02-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `set23a15l02.step` / `set23a15l02.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/8755880466128228352) (10 pp, sha256 `3f7a74a9118ffc70`, retrieved 2026-10-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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/set23a15l02-datasheet.pdf)