# SP0502BAHTG

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

SP0502BAHTG 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 | Pin 1 | passive | Pin 1 is one of the two protected datalines, paired with Pin 2 against Pin 3 in the 120 pF junction capacitance test (VR=0V, f=1MHz); the datasheet does not name its function or give a pin-specific voltage limit. |
| 2 | Pin 2 | passive | Pin 2 is the second protected dataline, paired with Pin 1 against Pin 3 in the junction capacitance test (VR=0V, f=1MHz); the datasheet does not name its function or give a pin-specific voltage limit. |
| 3 | Pin 3 | passive | Pin 3 is the common reference pin for the Pin 1 and Pin 2 measurements in the junction capacitance test; the datasheet does not name it as GND or state its own limits. |

## 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 |
|---|---|---|---|---|---|---|---|
| Working Peak Reverse Voltage | VRWM |  |  | 5 | V |  | 3 |
| Reverse Breakdown Voltage | VBR | 6 | 7 | 8.5 | V | IT=1mA | 3 |
| Reverse Leakage Current | IR |  |  | 0.5 | µA | VRWM=5V, T=25°C | 3 |
| Peak Pulse Current | IPP |  |  | 17 | A | tp=8/20μs | 3 |
| Junction capacitance | CJ |  |  | 150 | pF | VR=0V, f=1MHz, (Pin1 Pin2 to Pin3) | 3 |
| Clamping Voltage | VC |  |  | 15 | V | IPP=10A, tp=8/20μs | 3 |
| Clamping Voltage | VC |  |  | 16 | V | IPP=17A, tp=8/20μs | 3 |
| Peak Pulse Power | PPP |  |  | 300 | W | tp=8/20μs | 2 |
| Peak Pulse Current | IPP |  |  | 17 | A | tp=8/20μs, note 1 | 2 |
| ESD per IEC 61000-4-2 (Air) | VESD |  |  | 30 | kV | IEC 61000-4-2 air discharge | 2 |
| ESD per IEC 61000-4-2 (Contact) | VESD |  |  | 30 | kV | IEC 61000-4-2 contact discharge | 2 |
| Lead Soldering Temperature | TL |  |  | 260 | °C | 10 seconds | 2 |
| Junction Temperature | TJ | -55 |  | 125 | °C |  | 2 |
| Storage Temperature | TSTG | -55 |  | 125 | °C |  | 2 |

## CAD (KiCad official)

- Symbol: `SP0502BAHTG`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `sp0502bahtg-etched.step` / `sp0502bahtg-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sp0502bahtg.step` / `sp0502bahtg.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/8755887547484512256) (7 pp, sha256 `1bf01ab861003748`, retrieved 2026-10-20, tier: lcsc)
- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/sp0502bahtg-datasheet.pdf)