# TT0501MDX

**Shenzhen JingYang** · Electrostatic And Surge Protection (TVS/ESD) · SOD-523

TT0501MDX from Shenzhen JingYang, in a SOD-523. 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 | bidirectional | Bi-directional TVS clamp line for one high-speed data, control or power line, with 5.0V reverse working voltage, 5.5V to 8.0V breakdown (6.0V typical), and 10pF to 15pF parasitic capacitance (12pF typical) between I/O_1 and I/O_2. |
| 2 | I/O_2 | bidirectional | Second terminal of the bi-directional TVS, which rates ESD protection to IEC 61000-4-2 of ±30kV (air) and ±30kV (contact) and has a maximum reverse leakage of 1.0μA at 5V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Shenzhen JingYang |
| Package | SOD-523 |
| Category | Circuit Protection |
| Pins | 2 |

## 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 Leakage Current @ VRWM | IR | 0.1 | 0.1 | 1 | μA | VRWM = 5V, T = 25C, between I/O_1 and I/O_2 | 2 |
| Reverse Breakdown Voltage @ IT | VBR | 5.5 | 6 | 8 | V | IT = 1mA, between I/O_1 and I/O_2 | 2 |
| Clamping Voltage @ IPP | VC |  |  | 10 | V | IPP = 1A, tp = 8/20μs, between I/O_1 and I/O_2 | 2 |
| Clamping Voltage @ IPP | VC |  |  | 15 | V | IPP = 5A, tp = 8/20μs, between I/O_1 and I/O_2 | 2 |
| Parasitic Capacitance | CESD | 10 | 12 | 15 | pF | VR = 0V, f = 1MHz, between I/O_1 and I/O_2 | 2 |
| Nominal Reverse Working Voltage | VRWM |  | 5 |  | V |  | 2 |

## CAD (KiCad official)

- Symbol: `TT0501MDX`
- Footprint: `Diode_SMD:D_SOD-523`
- 3D model: SOD-523 (KiCad packages3D, STEP)
- 3D model files: `tt0501mdx-etched.step` / `tt0501mdx-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tt0501mdx.step` / `tt0501mdx.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Shenzhen JingYang datasheet](docs/tt0501mdx-datasheet.pdf) (5 pp, sha256 `43515ee86d7d84da`, retrieved 2026-10-21, 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/tt0501mdx-datasheet.pdf)