# PTV09A-4020U-B102

**BOURNS** · Potentiometers, Variable Resistors · THT

PTV09A-4020U-B102 from BOURNS, in a THT. 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 is one end of the carbon resistive element and is the common reference for the taper graphs (output is shown as Terminal 1-2 and input as Terminal 1-3), with device maximum operating voltage 20 VDC / 50 VAC and power rating 0.05 W (linear and audio). |
| 2 | 2 | passive | Terminal 2 is the wiper (output) terminal, with its output voltage defined relative to Terminal 1 on the taper graphs, and the datasheet gives no separate electrical limit for this terminal beyond the device ratings. |
| 3 | 3 | passive | Terminal 3 is the other end of the resistive element, with the input voltage defined between Terminals 1 and 3 on the taper graphs, and the device rated 20 VDC / 50 VAC maximum operating voltage. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | BOURNS |
| Package | THT |
| Category | Resistors |
| 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 |
|---|---|---|---|---|---|---|---|
| Standard Resistance Tolerance |  | -20 |  | 20 | % |  | 1 |
| Residual Resistance |  |  |  | 500 | ohm | Printed alternative: ±1 % max | 1 |
| Residual Resistance (alternative) |  | -1 |  | 1 | % | Printed as ±1 % max, alternative to 500 ohms | 1 |
| Nominal resistance (code 102) | R |  | 1000 |  | ohm | Resistance code 102, Standard Resistance Table | 1 |
| Maximum Operating Voltage (Linear and Audio), DC |  |  |  | 20 | VDC | Linear and Audio | 1 |
| Maximum Operating Voltage (Linear and Audio), AC |  |  |  | 50 | VAC | Linear and Audio | 1 |
| Sliding Noise |  |  |  | 100 | mV |  | 1 |
| Operating Temperature |  | -10 |  | 50 | °C |  | 1 |

## CAD (KiCad official)

- Symbol: `PTV09A-4020U-B102`
- Footprint: `Adom_Gen:Bourns_PTV09_4df4a4`
- 3D model: THT (KiCad packages3D, STEP)

## Provenance

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

- **Datasheet:** [BOURNS datasheet](https://www.bourns.com/docs/product-datasheets/PTV09.pdf) (5 pp, sha256 `411cdb6a62e61f9c`, retrieved 2026-11-05, tier: manufacturer)
- **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/ptv09a-4020u-b102-datasheet.pdf)