# SP0502BAJTG

**Littelfuse** · ESD And Surge Protection (TVS/ESD) · SC-70-3

SP0502BAJTG from Littelfuse, in a SC-70-3. 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 | TVS channel 1 protected line, steering-diode/avalanche array to pin 3 with 5.5V min reverse standoff, up to 5VDC, and 20kV IEC 61000-4-2 contact ESD level. |
| 2 | CH2 | passive | TVS channel 2 protected line, steering-diode/avalanche array to pin 3 with 5.5V min reverse standoff, up to 5VDC, and 20kV IEC 61000-4-2 contact ESD level. |
| 3 | GND | power_in | Common ground connection of the two-channel TVS array, shared by both channel diodes. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Littelfuse |
| Package | SC-70-3 |
| 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 Standoff Voltage |  | 5.5 |  |  | V | I = 10µA | 2 |
| Signal Clamp Voltage Positive |  | 5.6 | 6.8 | 8 | V | I = 10mA | 2 |
| Signal Clamp Voltage Negative |  | -1.2 | -0.8 | -0.4 | V | I = 10mA | 2 |
| Reverse Standoff Leakage Current |  |  | 1 | 100 | nA | V = 5.0V | 2 |
| Operating Temperature Range |  | -40 |  | 85 | °C |  | 2 |
| Storage Temperature Range |  | -65 |  | 150 | °C |  | 2 |
| Package Power Dissipation (SC70) |  |  |  | 0.2 | W | SC70 package; no temperature condition printed | 2 |

## CAD (KiCad official)

- Symbol: `SP0502BAJTG`
- Footprint: `Package_TO_SOT_SMD:SOT-323_SC-70`
- 3D model: SC-70-3 (KiCad packages3D, STEP)
- 3D model files: `sp0502bajtg-etched.step` / `sp0502bajtg-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sp0502bajtg.step` / `sp0502bajtg.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Littelfuse datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588901702963904512) (8 pp, sha256 `ed2a392eb82bc26f`, retrieved 2026-10-15, 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/sp0502bajtg-datasheet.pdf)