# AV20K1206201NIR1

**BOURNS** · Varistors · 1206

AV20K1206201NIR1 from BOURNS, in a 1206. 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 | BOURNS |
| Package | 1206 |
| 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 |
|---|---|---|---|---|---|---|---|
| Load Dump Energy (family range, all AV models) | WLD | 1 |  | 25 | J | Absolute maximum table, family range across models; footnote: up to 50 J available upon request | 1 |
| Jump Start Capability (family range, 5 minutes) | Vjump | 24.5 |  | 65 | V | Absolute maximum table, family range across models, 5 minutes | 1 |
| Peak Single Pulse Surge Current (family range) | Imax | 120 |  | 1200 | A | 8/20 µs waveform, absolute maximum table, family range across models | 1 |
| Single Pulse Surge Energy (family range) | Wmax | 0.3 |  | 30 | J | 10/1000 µs waveform, absolute maximum table, family range across models | 1 |
| DC Voltage Range (steady state applied voltage, family range) | Vdc | 16 |  | 56 | V | Continuous steady state applied voltage, absolute maximum table, family range across models | 1 |
| Varistor voltage tolerance (K = 10 %) | Vn | -10 |  | 10 | % | Vn tolerance code K in part number, per How to Order | 4 |
| Rated AC voltage (Vrms) | Vrms |  |  | 20 | V | Device ratings row AV 20 K 1206 201; maximum continuous sinusoidal AC at +25 °C, <5 % THD | 2 |
| Rated DC voltage (Vdc) | Vdc |  |  | 26 | V | Device ratings row AV 20 K 1206 201; maximum continuous DC at +25 °C, <5 % ripple | 2 |
| Jump start transient voltage (5 min) | Vjump |  |  | 30 | V | Device ratings row AV 20 K 1206 201; 5 min jump start | 2 |
| Rated peak single pulse surge current | Imax |  |  | 200 | A | Device ratings row AV 20 K 1206 201; 8/20 µs single pulse | 2 |
| Single pulse surge energy | Wmax |  |  | 1.6 | J | Device ratings row AV 20 K 1206 201; 10/1000 µs single pulse | 2 |
| Load dump energy (10 times) | WLD |  |  | 1.5 | J | Device ratings row AV 20 K 1206 201; WLD 10 times | 2 |
| Rated transient average power dissipation | P max. |  |  | 0.008 | W | Device ratings row AV 20 K 1206 201; at 25 °C | 2 |
| Varistor voltage (nominal) | Vn |  | 33 |  | V | Device ratings row AV 20 K 1206 201; @ 1 mA DC reference current | 2 |
| Clamping voltage | Vc |  | 54 |  | V | Device ratings row AV 20 K 1206 201; 8/20 µs at Ic = 1 A | 2 |
| Class current | Ic |  | 1 |  | A | Device ratings row AV 20 K 1206 201; 8/20 µs | 2 |
| Capacitance | Ctyp |  | 0.78 |  | nF | Device ratings row AV 20 K 1206 201; @ 1 kHz | 2 |
| Threshold voltage temperature coefficient |  |  |  | 0.05 | %/°C | Printed as < +0.05 %/°C, family-wide statement on page 1 | 1 |
| Response time | tr |  |  | 2 | ns | Printed as < 2 ns | 1 |
| Operating ambient temperature |  | -55 |  | 125 | °C | Operating ambient temperature range | 1 |
| Storage temperature range |  | -55 |  | 150 | °C | Storage without voltage applied | 1 |

## CAD (KiCad official)

- Symbol: `AV20K1206201NIR1`
- Footprint: `Resistor_SMD:R_1206_3216Metric`
- 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files: `av20k1206201nir1-etched.step` / `av20k1206201nir1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `av20k1206201nir1.step` / `av20k1206201nir1.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [BOURNS datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589954296361091072) (17 pp, sha256 `db8f500de47b267a`, retrieved 2026-10-18, tier: lcsc)
- **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/av20k1206201nir1-datasheet.pdf)