# AVRH10C390KT500NA8

**TDK** · Varistors · 0402

AVRH10C390KT500NA8 from TDK, in a 0402. 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 | 1 | passive | Terminal electrode (Ag/Ni/Sn) of the non-polar varistor; connect to the protected line, with 28 V max continuous DC (Vdc) across the part, 39 V (35 to 43 V) varistor voltage at 1 mA and 72 V clamping at 2 A (8/20 µs). |
| 2 | 2 | passive | Terminal electrode (Ag/Ni/Sn) of the non-polar varistor; connect to ground or the opposite node, with 28 V max continuous DC (Vdc), 50 pF (35 to 65 pF) capacitance and 25 kV IEC61000-4-2 ESD tolerance. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TDK |
| Package | 0402 |
| Category | Circuit Protection |
| Pins | 2 |

## CAD (KiCad official)

- Symbol: `AVRH10C390KT500NA8`
- Footprint: `Resistor_SMD:R_0402_1005Metric`
- 3D model: 0402 (KiCad packages3D, STEP)
- 3D model files: `avrh10c390kt500na8-etched.step` / `avrh10c390kt500na8-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `avrh10c390kt500na8.step` / `avrh10c390kt500na8.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [TDK datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8558282597106548736) (19 pp, sha256 `d4c2107b21fc5d20`, retrieved 2026-10-09, 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/avrh10c390kt500na8-datasheet.pdf)