# AVRL161A3R3FTA

**TDK** · Varistors · 0603

AVRL161A3R3FTA from TDK, in a 0603. 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 1 of an unpolarised resistor; either orientation. |
| 2 | 2 | passive | Terminal 2 of an unpolarised resistor; either orientation. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TDK |
| Package | 0603 |
| 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 |
|---|---|---|---|---|---|---|---|
| Leakage current |  |  |  | 50 | µA | Between terminals, within maximum allowable circuit voltage range (general varistor-series note) | 5 |
| Operating temperature range (AVRL16) |  | -40 |  | 125 | °C | Includes self-temperature rise | 5 |
| Storage temperature range (AVRL16) |  | -40 |  | 125 | °C | Shown after board mounting | 5 |
| Capacitance (nominal, from part code 3R3) | C |  | 3.3 |  | pF | Oscillator frequency 1 kHz or 1 MHz, 1 Vrms | 4 |
| Capacitance tolerance (code F) |  | -1 |  | 1 | pF | Tolerance code F per part-numbering table | 4 |
| Preheat temperature (lead-free solder) |  | 150 |  | 180 | °C | Reflow, lead-free solder | 11 |
| Peak reflow temperature (lead-free solder) |  |  |  | 260 | °C | Reflow, lead-free solder, maximum temperature | 11 |
| Time above solder melting (lead-free solder) |  |  |  | 40 | s | Reflow, lead-free solder | 11 |
| Number of reflow passes (lead-free solder) |  |  |  | 2 | times | Reflow, lead-free solder, maximum count | 11 |

## 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 |  | nickel | 端子电极 (4) Ni | 2 |

## CAD (KiCad official)

- Symbol: `AVRL161A3R3FTA`
- Footprint: `Resistor_SMD:R_0603_1608Metric`
- 3D model: 0603 (KiCad packages3D, STEP)
- 3D model files: `avrl161a3r3fta-etched.step` / `avrl161a3r3fta-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `avrl161a3r3fta.step` / `avrl161a3r3fta.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/8589838767659261952) (14 pp, sha256 `afc4af3d1171d8de`, retrieved 2026-10-18, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `two-terminal convention` (convention), consensus `off` (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/avrl161a3r3fta-datasheet.pdf)