# AZC615-04S

**Leiditech** · ESD And Surge Protection (TVS/ESD) · SOT-26

AZC615-04S from Leiditech, in a SOT-26. 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/O 1 | passive | Protected data line 1, steered by the diodes to the REF pins when a transient exceeds the reference voltage plus diode VF. |
| 2 | REF1 | power_in | Negative reference (ground); connect directly to a ground plane with the shortest possible path to minimize parasitic inductance. |
| 3 | I/O 3 | passive | Protected data line 3, steered by the diodes to the REF pins when a transient exceeds the reference voltage plus diode VF. |
| 4 | I/O 4 | passive | Protected data line 4, steered by the diodes to the REF pins when a transient exceeds the reference voltage plus diode VF. |
| 5 | REF2 | power_in | Positive reference (connected to VCC in the application circuits) to which forward-biased steering diodes conduct positive transients. |
| 6 | I/O 2 | passive | Protected data line 2, steered by the diodes to the REF pins when a transient exceeds the reference voltage plus diode VF. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Leiditech |
| Package | SOT-26 |
| 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 |
|---|---|---|---|---|---|---|---|
| Reverse working (stand-off) voltage | VRWM |  |  | 5 | V |  | 2 |
| Breakdown voltage | VBR | 6 |  |  | V | IT = 1 mA | 2 |
| Clamping voltage @1A | VC |  |  | 15 | V | @ 1 A | 2 |
| Clamping voltage | VC |  |  | 25 | V | @ 12 A | 2 |
| Reverse leakage current | IR |  |  | 0.5 | µA |  | 2 |
| Junction capacitance | C |  | 1.5 |  | pF |  | 2 |
| Peak Pulse Power | Ppp |  |  | 300 | W | 8/20µs | 1 |
| ESD per IEC 61000-4-2 (Air) | VESD | -30 |  | 30 | kV | Air | 1 |
| ESD per IEC 61000-4-2 (Contact) | VESD | -30 |  | 30 | kV | Contact | 1 |
| Operating Temperature Range | TJ | -55 |  | 125 | °C |  | 1 |
| Storage Temperature Range | TSTJ | -55 |  | 150 | °C |  | 1 |

## CAD (KiCad official)

- Symbol: `AZC615-04S`
- Footprint: `Package_TO_SOT_SMD:SOT-23-6`
- 3D model: SOT-26 (KiCad packages3D, STEP)
- 3D model files: `azc615-04s-etched.step` / `azc615-04s-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `azc615-04s.step` / `azc615-04s.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Leiditech datasheet](docs/azc615-04s-datasheet.pdf) (8 pp, sha256 `221d0b27f0f9ceb4`, retrieved 2026-10-27, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-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/azc615-04s-datasheet.pdf)