# ESD7C5.0DT5G

**onsemi** · ESD And Surge Protection (TVS/ESD) · SOT-723

ESD7C5.0DT5G from onsemi, in a SOT-723. 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 | CATHODE | passive | Diode cathode terminal of the unidirectional ESD protection diode, rated for a 5.0 V stand-off voltage and an IEC 61000-4-2 contact ESD rating of ±8.0 kV. |
| 2 | CATHODE | passive | Second cathode terminal, designated CATHODE alongside pin 1 in the pin assignment; the datasheet does not describe any internal connection between pins 1 and 2. |
| 3 | ANODE | passive | Diode anode terminal of the ESD protection diode, connected to the signal or line to be protected against ESD transients. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | SOT-723 |
| 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 |
|---|---|---|---|---|---|---|---|
| Breakdown Voltage (min) | VBR | 11 |  |  | V | @ IT = 1.0 mA; pulse test, TA = 25°C (Note 3) | 2 |
| Maximum Reverse Leakage Current @ VRWM | IR |  |  | 0.5 | A | @ VRWM = 5.0 V | 2 |
| Forward Voltage | VF |  |  | 1.1 | V | IF = 10 mA | 2 |
| Max. Capacitance (one diode) | C |  | 6 | 6.2 | pF | VR = 0 V, f = 1 MHz, TA = 25°C (Note 4) | 2 |
| IEC 61000-4-2 (ESD) Contact |  | -8 |  | 8 | kV | IEC 61000-4-2 contact | 1 |
| IEC 61000-4-2 (ESD) Air |  | -15 |  | 15 | kV | IEC 61000-4-2 air | 1 |
| Total Power Dissipation on FR-5 Board | PD |  |  | 240 | mW | FR-5 board (Note 1) @ TA = 25°C | 1 |
| Thermal Resistance Junction-to-Ambient | RJA |  |  | 525 | °C/W |  | 1 |
| Junction and Storage Temperature Range | TJ, Tstg | -55 |  | 150 | °C |  | 1 |
| Lead Solder Temperature (Maximum) | TL |  |  | 260 | °C | 10 second duration | 1 |

## Materials and finish

As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).

| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts |  | tin | LEAD FINISH: 100% Matte Sn (Tin) MOUNTING POSITION: Any | 1 |

## CAD (KiCad official)

- Symbol: `ESD7C5.0DT5G`
- Footprint: `Package_TO_SOT_SMD:SOT-723`
- 3D model: SOT-723, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.5 mm nominal SOT-723 height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
- 3D model files: `esd7c5-0dt5g-etched.step` / `esd7c5-0dt5g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `esd7c5-0dt5g.step` / `esd7c5-0dt5g.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [onsemi datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589836811435470848) (5 pp, sha256 `e439625bc7d4b018`, 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/esd7c5-0dt5g-datasheet.pdf)